All presentations should include the beginning, the middle, and the enD. The first part of your presentation should always present the problem. The middle of the presentation should present your key findings. By the end of the presentation, your audience should have a better understanding of the solution. Less is morE. There’s a tendency to make a presentation slide excessively complicated with flashy images, strange transitions, and too much text. These features are often unnecessary, and tend to make the viewers get boreD. Instead, keep each slide short and plain, using one image to sell your ideA. Using bullets (圆形符号) is a bit of a cliché (陈词滥调), but if you must use them, never exceed (超过) more than one line of text per bullet. Branding is the key. Whether you’re stating a new business idea to investors or describing a new product to customers, you’ll want your presentation to reinforce your brand’s imagE. Use the same color schemes, fonts (字体), and logos that you use on your website or company literaturE. There’s an assumption of what a Power Point is supposed to look like, and company standards falls through the floor. Give them a break. According to a recent research, the average adult attention span for a presentation is just 20 minutes. It’s always best to keep your presentation short and to the point, but if you must exceed the recommended 20 minutes, try giving your audience a moment to relax. “You can extend attention spans by giving your audience a rest,” the study says. This can be done by telling a story, giving a demo, or doing something else that gives the brain a break. Practice it again and again. In the end, a great presentation will come down to the speaker’s ability to capture the audience’s imagination and keep their attention. The presentation and the speaker should work together and they can be complementary (相互补充的) to each other. The best presenters won’t have to look down at the notes and will never be reading from a script.A.good speaker can focus on the key points and convey information well. 41. How can you make a presentation slide not too complicated? A. By keeping each slide short and plain. B. By using flashy images and much text. C. By using more than one line of text per bullet. D. By using more than one image to show your ideA. 42. Why should you use the same color schemes, fonts, and logos in your presentation? A. To describe your ideas clearly. B. To reinforce your brand’s imagE. C. To make a contrast with new images. D. To make investors remember your ideas. 43. According to the passage, a good presenter always _______. A. looks down at notes from time to time B. takes a break in the process of presenting C. keeps his presentation beyond 20 minutes D. catches the audience’s imagination and attention 44. The underlined word “reinforce” in the third paragraph probably means “______”. A. create B. praise C. preserve D. strengthen 45. What can be the best title for this passage? A. Four Tips for a Great PowerPoint Presentation B. The Importance of a PowerPoint Presentation C. The Benefits of Using a PowerPoint Presentation D. The Proper Occasion for a PowerPoint Presentation

Everyonehasgottwopersonalities—theonethatisshowntotheworldandtheotherthatissecretandreal.Youdontshowyoursecretpersonalitywhenyoureawakebecauseyoucancontrolyourbehaviourbutwhenyoureasleepyoursleepingpositionshowstherealyou.Inanormalnightofcoursepeoplefrequentlychangetheirposition.Theimportantpositionistheonethatyougotosleepin.Ifyougotosleeponyourbackyoureaveryopenperson.Younormallytrustpeopleandyouareeasilyinfluencedbyfashionornewideas.Youdontliketoupsetpeoplesoyouneverexpressyourrealfeelings.Yourequiteshyandyouarentveryconfident.Ifyousleeponyourstomachyouarearathersecretive不坦率的person.Youworryalotandyourealwayseasilyupset.Youreverystubborn顽固的butyouarentveryambitious.Youusuallylivefortodaynotfortomorrow.Thismeansthatyouenjoyhavingagoodtime.Ifyousleepcurledup卷曲youareprobablyaverynervousperson.Youhavealowopinionofyourselfandsoyoureoftendefensive.Youreshyandyoudontnormallylikemeetingpeople.Youprefertobeonyourown.Youreeasilyhurt.Ifyousleeponyoursideyouhaveusuallygotawell-balancedpersonality.Youknowyourstrengthsandweaknesses.Youreusuallycareful.Youhaveaconfidentpersonality.Yousometimesfeelanxiousbutyoudontoftengetdepressed.Youalwayssaywhatyouthinkevenifitannoyspeople.60.Accordingtothewriteryounaturallyshowyoursecretandrealpersonality_____.A.onlyinanormalnightB.onlywhenyougotosleepC.onlywhenyourefusetoshowyourselftotheworldD.onlywhenyouchangesleepingposition61.WhichisNOTmentionedinthesecondparagraphaboutapersonspersonalityA.Heorsheisalwaysopenwithothers.B.Heorshealwayslikesnewideasearlierthanothers.C.Heorsheisalwayseasilyupset.D.Heorshetendstobelieveinothers.62.PointoutwhichsentenceisusedtoshowthepersonalityofapersonwhoisusedtosleepingonhisorherstomachA.Heorsheiscarefulnottooffendothers.B.Heorshedoesntwanttosticktohisorheropinion.C.Heorshecantbesuccessfulinanybusiness.D.Heorshelikestobringothershappiness.63.Maybeyoudontwanttomakefriendswithapersonwhosleepscurledup.WhyA.Heorshewouldratherbealonethancommunicatewithyou.B.Heorsheisrarelyreadytohelpyou.C.Heorsheprefersstayingathometogoingout.D.Heorshewouldntliketogethelpfromyou.64.Itappearsthatthewritertendstothinkhighlyofthepersonwhosleepsononesidebecause______.A.heorshealwaysshowssympathyforpeopleB.heorsheisconfidentbutnotstubbornC.heorshehasmorestrengthsthanweaknessesD.heorsheoftenconsidersannoyingpeople

Ifyourcellphonesuddenlystopsworkingdon'tblametheserviceprovider.Themalfunction故障mighthavebeencausedbysomethingbigger—asolarstorm.ExpertsexpectthattheearthwillseemoresolaractivitiesinthenearfuturE.Themalfunctionofelectronicdevicesisjustoneoftheeffects.Sunspots太阳黑子serveasanindicatorofthesun'sactivity.Forthepasttwoyearssunspotshavemostlybeenmissing.Theirabsencethelongestinnearly100yearshastakenevensunwatchersbysurprisE.Whenthenumberofsunspotsdropsattheendofeach11-yearcyclesolarstormsdiedownandallbecomemuchcalmer.Thissolarminimumdoesn'tlastlong.Withinayearsunspotsandsolarstormsbegintobuildtowardanewcrescendo_thenextsolarmaximum.What'sspecialaboutthislatestcycleisthatthesunishavingtroublestartingthenextsolarcyclE.Thesunbegantocalmdowninlate2007sonooneexpectedmanysunspotsin2008.Theyshouldreturnin2010.Scientistshavepredictedthatthenextsolarcyclecouldbethemostactiveonrecord:moresunspotsandmoresolarstorms.Howeversunspotsaremostlymissingnow.SincetheearthisinclosecontactwiththesunstrongsolaractivitiescanbringtroubletoourlifE.Peopleofthe21stcenturyrelyonhigh-techsystemsforthebasicsofdailylifE.Airtravelandradiocommunicationscanbeaffectedbystrongsolaractivities.A.bigsolarstormcouldcause20timesmoreeconomicdamagethanHurricaneKatrinA.Whatthesunwilldonextisbeyondourabilitytopredict.Mostastronomersthinkthatthesolarcyclewillgoonbutatlowlevel.Howeverthereisalsoevidencethatthesunislosingitsabilitytoproducesunspots.By2015theycouldbegonealtogether.1.Thesunwatchersfeelsurprisedat________.A.thelongestsunspots'absenceB.thelargestsunspotnumberC.themalfunctionofelectronicdevicesD.theseriousdamagebysunspots2.WhatdoestheunderlinedwordcrescendoinParagraph3mostprobablymean?A.smallnumberB.highlevelC.usualcycleD.freshstart3.Wecaninferthatinthepasttwoyears________.A.solaractivitieshavebroughtmuchtroubletoourlifeB.thenumberofsunspotshasincreasedtoalargeextentC.thesolarminimumtooktheplaceofthesolarmaximumD.ourcellphoneshaveseldombeeninterruptedbythesolarstorm4.Whichstatementdoesthetextleadyoutobelieve?A.SolaractivitiesdonoharmtoourdailylifE.B.HurricaneKatrinaisalsoatypeofsolarstorms.C.It'sdifficulttopredictsunspots.D.Fromnowonthere'renosunspots.

TheweatherpredictionsforAsiain2050readlikeastoryfromadoomsdaymoviE.Manyexpertsandgreengroupsfeartheywillcometrueunlessthereisaunitedglobalefforttoholdbackgreenhousegasoutpouring.InthedecadestocomeAsia---hometomorethanhalftheworld’s63billionpeople-willchangefromoneclimateextremetoanotherwithtiredfarmersbattlingdroughtsfloodsdiseasefoodshortagesandrisingsealevels.It’snotaprettypicturesaidSteveSawyerclimatepolicyadviserwithGreenpeaceinAmsterdam.GlobalwarmingandchangesofweatherpatternsarealreadyoccurringandthereismorethanenoughcarbondioxideandothergreenhousegasesintheatmospheretodriveclimatechangefordecadestocomE.AlreadychangesarebeingfeltinAsiabutworseislikelytocomeSawyerandtopclimatebodiessayandcouldleadtomassmigrationandwidespreadhumandisasters.AccordingtopredictionsicebergswillmeltfastersomePacificandIndianOceanislandswillhavetoevacuate疏散orbuildseadefensesstormswillbecomemoreintenseandinsectandwater-bornediseaseswillmoveintonewareasastheworldwarms.Allthiscomeswithrisingpopulationsanddemandforfoodwaterandotherresources.ExpertssayenvironmentalworseningsuchasdeforestationandpollutionwillprobablyenlargetheresultsofclimatechangE.InwhatcouldbeasignofthefutureJapanwashitbyarecordof10typhoonsandtropicalstormsthisyearwhiletwo-thirdsofBangladeshpartsofNepalandlargeareasofnortheasternIndiawerefloodedaffecting50millionpeopledestroyinglivelihoodsandmakingtensofthousandsill.Theyearbeforeawintercoldstruckandasummerheatwavekilledmorethan2000peopleinIndiA.60.Thispassageismainlyabout.A.whatkindofweatherwelikebestB.theweatherpredictionsforAsiainthefutureandthereasonsC.howtoimproveourenvironmentD.thattheworldwillnotbesuitableforustolivein61.InthefuturetheAsianfarmerswillhavetofacethefollowingexcept.A.foodshortagesB.droughtsC.warsD.floods62.Theunderlinedworddoomsdaymaygiveusthefeelingof.A.happinessB.sadnessC.peaceD.excitement

Showthemthemoney!That’swhatsomepeoplearesayingforcollegeathletes.Theysaystudentswhoplaysportsfortheirschoolshouldreceivesalaries.TopathletesshouldbepaidbecausemanyofthempracticefulltimeMarkJamesonargues.RicoCannonaformercollegefootballplayeragrees.Nonathletescangetajobforextraspendingmoneybutmanystudentathletesspendsomanyhoursintrainingthattheydon’thavetimetoworkheexplains.Shouldn’tathletesbeabletoearnextramoneytoo?Thestudentsalsomakemoneyfortheirschoolswhenpeoplebuyticketstotheirgames.TheplayersshouldreceivesomeofthatcashsupporterRobbiePokorareasons.Collegeathletesareabouthonorandtraditionbutthey’realsoabusiness.Thankstoticketsalesthere’smoneyforschoolstobuildnewathleticstadiumsandgivethecoacheshighsalaries.Thecashshouldbesharedwithathletes.They’retheonesoutonthefieldorcourtworkinghardfortheirschool.Themoneymatterhasotherscryingfoulthough.KaitlynRentalaarguesthatcollegesshouldnotpaytheirathletes.Studentsareinschooltogetaneducation.Playingasportisanextracurricular课外的activitynotajoB.Ifathletesneedextramoneytheycanapplyforcollegescholarships奖学金.MichaelMassettisamiddleschoolteacherandafootballandabasketballcoach.Heagrees.AthletesshouldbepaidwithscholarshipslikenonathletesareMassettexplains.Inadditionifcollegespaytheirathletesthosestudentsmightfocusmoreonsportsthanontheireducation.MoststudentsdonotbecomeprofessionalathletesaftercollegE.IftheyfocustoomuchonsportstheymaynotlearntheskillstheyneedtogetgoodjobsKateMacraereasons.Plusshesaysmanyathleteshaveschoolshipsthathelpthempayforschool.72.WhatisRicoCannon’sopiniononpayingstudentathletes?A.Theymakemoneyfortheirschoolsandshouldreceivesalaries.B.TrainingleavesthemnotimetoworkandtheyshouldbepaiD.C.Playingasportatschoolisnotajobandtheyshouldn’tbepaiD.D.TheycanapplyforscholarshipsandshouldnotbepaiD.73.Whosupportstheideaofpayingstudentathletes?A.KaitlynRentalaB.RobbiePokoraC.MichaelMassettD.KateMacrae74.WhatdoestheunderlinedpartcryingfoulinParagraph5mean?A.Makingnoprogress.B.Givingupbeliefs.C.havingdifferentopinionsD.Takingnointerest.75.What’sthebesttitleforthetext?A.Paytoplay?——Willitbepopularwithcollegeathletes?B.Collegeathletesmakealotofmoneyfortheirschools.C.Collegeathletescanapplyforscholarshipsastheirsalaries.D.Paytoplay?——Shouldcollegeathletesbepaid?

Olderfathershaveuglierchildrenresearchershaveclaimedafterlinkingagetogeneticmutations变异.Thefindingcomesweeksafterleadingscientistsreportedchildrenborntomenovertheageof45runahigherriskofhavingautismandmentaldisorders.Withagesperm精子-producingcellsdonotcopyaman’sDNAaseffectivelyleadingtogeneticmutations.MartinFielderananthropologist人类学家atViennaUniversitytoldtheSundayTimes:'Every16yearsthemutationratedoubles.Otherresearchersfound25mutationsperspermina20-year-oldbutatage40itis65mutations.By56itdoublesagain.Theeffectisveryvisible-someoneborntoafatherof22isalready5-10percentmoreattractivethanthosewitha40-year-oldfatherandthedifferencegrowswiththeagegap.Incontrastwomenpassonamaximumof15mutationstotheirbabyregardlessofageaccordingtothestudypublishedinthejournalNaturE.Surveyingagroupofsixmenandsixwomenresearchersshowedthemeach4018photographsof18-20-year-oldmenand4416ofwomenthesameageandaskedtoassesstheirattractiveness.ThosewitholderfatherswereconsistentlyconsideredlessattractivE.HoweverthechildrenofoldermenthoughlessattractivearelikelytooutlivetheirpeerswithyoungerfathersitisclaimeD.ProfessorLeeSmithageneticistatEdinburghUniversitytoldtheSundayTimesotherresearchfoundsuchchildrenhavelongertelomeres端粒-thecapsontheendofchromosomes染色体---whichareassociatedwithlongerlifE.Butthemountingresearchconnectingparents’agewithautismiscauseforconcernexpertswarn.Autismisanumbrellatermforarangeofdevelopmentaldisordersthathavealifelongeffectonsomeone’sabilitytointeractsociallyandcommunicateopenly.IntheUKaroundonein100adultsisthoughttobeaffectedbyautismmostlymencausedbyacombinationofgeneticandenvironmentalfactors.Researcherssaidmenshouldbeadvisedaboutthepotentialproblemsinordertohelptheirpersonaldecision-makingwhenitcametohavingfatheringchildrenatolderages.Theywarnedthatadvancingpaternalagefacedariskof‘numerouspublichealthandsocietalproblems’.Amongwell-knownolderdadsareSimonCowell54whosesonwasbornearlierthismonthandcomedianFrankSkinnerwhosefirstchildwasbornin2012whenhewas55.72.Fromthepassageweknowthat_______.A.GeneticmutationsarecausedbyoldageandphysicaldisordersB.Whenamanbecomesoldersperm-producingcellscopyhisDNAlesseffectivelyC.OneoftheadvantagesolderfathershaveisthattheirchildrencanlivealongerlifeD.Researchersadvisementoavoidhavingfatheringchildrenatolderages.73.Whatdoesthepassagesayaboutautism?_______A.GeneticmutationsinsideapersoncauseautismB.EnvironmentalfactorscontributetoautismC.IntheUKonepercentofitspopulationareaffectedbyautismD.Autismpreventspeoplefrominteractingsociallyandcommunicatingopenly74.WhichofthefollowingisTRUEaccordingtothepassage?______A.AgingisthecauseofgeneticmutationsB.Mothershavelesseffectontheirchildren’sappearancethanfathersC.ChildrenborntoyoungerfathersaremoreattractiveinlooksthanthoseborntoolderfathersandthedifferencegrowswiththeagegapD.SimonCowellandFrankSkinnerarementionedasanexampletoshowthatolderfathershaveuglierchildren75.Thewholepassageisdevelopedmainlybymeansof________.A.showingexamplesB.makingargumentsC.presentingtheoriesD.providingdataandfacts

LookatthecentercirclesofDiagramA.andDiagramB.Whichofthecentrecircleslookslarger?InDiagramB?InfacttheyareexactlythesamesizE.Thenlookatthepictureontheright.Whatdoyousee?A.vase?OrtwofacesDoesthepicturechangequicklyfromonetotheotheragainandagain?MaybeormaybenotbutyoucanneverseethematthesametimE.What’shappening?Issomethingwrongwithmyeyes?YoumaywonderatwhatyouseE.Don’tworry.Hereishowitgoes:Whenwelookatthingsoureyessendmessagestoourbrainsandthenourbrainsinterprettheinformation.Howeversometimesourbrainsinterpretthereceivedinformationinawrongway.Itseemsthatoureyesareplayingajokeonus.Thisoftenhappensandwecallitvisualillusion错误.Moviemakersoftenmakeuseofvisualillusions.Theymaketheobjectsaroundactorsmuchsmallerorbiggerthanusual.ThismakesusbelievethattheactorsaremuchlargerorsmallerthantheyusuallyarE.ThemoviesJurassicParkandHoneyIshrunkthekidsjustmakeuseofvisualillusions.36.WhydoesthecentrecircleinDiagramA.looksmallerthanthatinDiagramB?A.Somethingiswrongwithoureyes.B.ThetwocirclesarenotthesamesizE.C.Ourbrainsinterprettheinformationinawrongway.D.Thetwopictureschangequicklyfromonetotheother.37.What’stherightorderaccordingtothepassage?A.Welookatthingswithoureyes.B.Ourbrainsinterpretthemessages.C.Ourbrainstelluswhatwehaveseen.D.Oureyessendmessagestoourbrains.A.adbcB.cabdC.acdbD.bcad38.Whatdomoviemakersmakeuseofvisualillusionsfor?A.TohelptheactorslookbetterB.TomaketheactorsmuchbraverC.TohelptheactorsbecomestrongerD.Tomaketheactorsseemdifferentinsize39.InthepictureontherightitseemsthatLineABisshorterthanLineCDbutinfactLineABisaslongasLineCD.Whichparagraph段落canexplainwhathashappenedtooureyes?A.ThesecondonE.B.ThethirdonE.C.ThefourthonE.D.ThefifthonE.

OnOct42011Iphone4smadeitsinternationalappearanceatthepressconferenceclaimedbytheIphonecooperation.EversincethenIphone4shasbecomeahotcakeandevenmadeafashionaroundtheglobE.Meanwhilemanynewexpressionscomeaboutinrelationshipwiththistypeofhigh-techproducts.Jailbreakisoneofthem.Jailbreakmeanstounlocktheoperatingsystemofamobilephoneorotherdevicesothatitcanrunsoftwarewhichitisnotnormallyauthorizedtousebecauseofrestrictionsimposed实施bythedevice'smanufacturer.Ifsomeonejailbreaksasmartphonetabletcomputerorotherdevice设备theyuseaspecialpieceofsoftwareinordertoremovetherestrictionsimposedbythemanufactureronthekindofapplicationsthatcanbedownloadedandrunonthedevicE.TheconceptofjailbreakingismostoftenassociatedwithproductsfromAppleIncsuchastheiPhoneiPodandiPadwhichroutinelyrestricttheusertoapplicationslicensedexclusively独家地byAppleandpurchasedviaitsAppStorE.Aswellaswantingtolifttherestriction解除限制onwhatkindsofapplicationstheycanpurchasethosewhojailbreakoftendosoasareactionagainstwhattheyconsiderasaformofcensorship监控imposedbyAppleIncinonlyallowingtheuseoftheir'approved'apps.TheconceptofjailbreakingdatesbacktoJuly2007whenitwasappliedtotheiPhonewithinamonthofthedevice'sfirstreleasE.Thisfirstoccurrencerelatedtotheaddingofcustomringtones个性铃音buttheideaquicklydevelopedasameanstolifttherestrictionandequipthephonewithgamesandotherapplicationsnotlicensedbyAppleInC.【小题1】.jailbreakmeansthat________________.A.CriminalsescapeoutofthejailB.PeoplemakeagreatbreakthroughintheirlifeC.ItisawaytolifttherestrictionspeciallyimposedbytheIphonemanufacturer.D.It’sabreakthroughbeyondone’sdream.【小题2】.WhichisprobablythecorrectChinesemeaningofahotcakeA.热蛋糕B.抢手货C.热门话题D.最高礼遇【小题3】.Whichoneisthecorrectstatementfromthispassage?A.TheoriginalmobilephonesalsorequirejailbreakingB.PeoplejailbreaknotonlyinordertolifttherestrictionsofapplicationslicensedbytheIphoneCooperation.C.TheconceptofjailbreakisseldomassociatedwithproductsfromAppleIncD.Theconceptofjailbreakdatesbacktothetwentiethcentury

PreviouslyIheardastoryaboutamotherwhohadtwodaughters.Shelovedthemverymuchbuttwogirlswouldfightwitheachotherfromtheirearliestyears.Astheygrewoldertheybecametotalstrangers.Theyhadnocontactwitheachotherwhentheywereadults.Thiscausedthemothergreatpain.ThenlatershehadanideA.Shedecidedtowritealettertothem.Inthislettershetoldthemhowmuchshelovedthemandhowshewantedthemtoloveeachotherinthisway.Shealsogavethemnewsofherselfandsomeguidanceonhowtheymightlivehappierlives.Whentheletterwasreadyshewroteoutonecopyforeachdaughterbutthesecopieswerespecial.Eachcopycontainedonlyeverysecondsentenceoftheoriginalletter.Thecopyforonedaughterhadonlytheeven偶数的sentencesandtheotherdaughter’scopycontainedonlytheodd奇数的sentences.Neithercopymadesenseonitsown.Neithercontainedthefullnessofthemother’smessagE.WhenthetwodaughtersreceivedtheirletterstheywerepuzzleD.IftheyreallywantedtoknowwhattheletterssaidtheywouldhavetoputthetwoletterstogetherandreadthemasonE.Thatmeanttheymustapproachoneanotheragaininmutual彼此的loveandrespect.Foralongtimethemotherwaitedinvain.Bothdaughterstriedtounderstandthehalf-letterbuttheyeachblamedtheotherfornothelpingthem.Eachdaughterthoughtsheknewhermotherbetter.Thenonedaywhenthemotherhadalmostgivenuphopetherewasaknockatthedoor.Theretheystoodtogether.We’vecomehometheysaidatthesametimE.We’vefinallyputourletterstogetherandwe’vecometosayhowmuchweloveyouMum.ThenshehuggedthembothtearsofjoystreamingdownhercheeksandwelcomedthembackhomE.61.Whenthetwodaughterswereyoungthey____.A.hadnocontactwitheachotherB.dislikedeachotherC.showeddeeploveforeachotherD.didnotlovetheirmother62.Whydidthemothergiveherdaughtersincompleteletters?A.Shewantedtotellthemhergoodnewsandbadnews.B.Shehopedtheywouldaskherformoreinformation.C.Shehopedtheywouldapproacheachotherandmakeup.D.Shethoughtshecouldchangetheirattitudetowardsher.63.Whatdidthetwodaughtersdosoonaftertheyreceivedtheirletters?A.Theyblamedeachotheragainasusual.B.Theymadepeacewitheachotherquickly.C.TheyrealizedthemistakestheyhadmadE.D.Theyapologizedtotheirmother.64.Itcanbeinferredfromthepassagethat_____.A.lovecanneitherbeboughtnorsoldB.faultsarethickwhenloveisthinC.withoutrespectlovecan’tgofarD.lovecanhelpenemiesbecomefriends65.Whatisthebesttitleforthispassage?A.AnUnusualLetterB.A.Mother’sEndlessLoveC.SpecialDaughtersD.DeepLovefromDaughters

Ourparticularparentingstylereflectsourownwayoflooking.Here’sagreatpieceofwritingreflectingparent’sparticularwaysontheparentingstylethathavebecomeknownhumorouslyashelicopterparentingandsubmarine潜水艇parenting.Helicopterparentshoverovertheirchildrenmanagingeveryaspectoftheirchild’slifE.OnthecontrarysubmarineparentsremainhiddencomingtothesurfacewhenguidanceisneedeD.Whilehelicopterparentsmayhavethebestintentionsinrealitytheyareraisingchildrenwithfewproblemsolvingskills.ChildrenwithhoveringparentsnevergetthechancetofacedisappointmentandbuilduptheirabilitytorecoverfrommisfortunE.ThinkaboutyourtypicalsubmarinE.Submarinesusuallyremainunderwater.Incaseofaneedforemergencysurfacingsubmarinescanrisesoquicklytheyaredrivenpartiallyoutofthewater.Submarineparentsalsoremainoutofsightyetabletopopupinthecaseofanemergency.IadmitI’masubmarinemom.Myjobasaparentistohavefunwithmydaughterswhilelettingthemexploreandlearnnaturalconsequences.Myolderdaughterfoundherselfactingincommercialsandmakingmorethanminimumwageasateen.TogiveherasenseoftherealworldIinsistedshespendthreeweekseverysummerpickingstrawberriesandearning$3.50onagoodday.WhenmyyoungestdaughterSondrawassixshewantedaveryexpensiveAmericanGirlDoll.Icutthefullcolor18-inchpictureoutoftheAmericanGirlcatalogueandhaditlaminated压膜.Here’syourAmericanGirlDoll.IsaidWhenyouturnnineI’llbuyyouthe3Ddollonyourbirthday.Sondraplayedwithherflatdollformonthsmakingclothesandfurnitureforher.Shelearnedcreativity.Isaved$88.00.61.Whatisthetextmainlyabout?A.Variousmeansoftransportation.B.Funnyexperiencesofamom.C.Humorousstoriesaboutparents.D.Differentstylesofparenting.62.TheunderlinedphrasehoveroverinParagraph2isclosestinmeaningto____.A.leavebehindB.flyaroundC.watchoverD.setaside63.Whichofthefollowingistrueofhelicopterparents?A.TheygivetheirchildrenproperguidancE.B.Theytrytodoeverythingfortheirchildren.C.Theyteachtheirchildrenhowtofacefailures.D.Theyhelptheirchildrenexplorebythemselves.64.ItcanbeinferredfromthelasttwoparagraphsthatMom____.A.hasgoodparentingskillsB.isalwaysmakingpromisesC.isstrictwithherdaughterD.triesherbesttosavemoney65.Theauthorsupportsherpointofviewmainlyby____.A.statingfactsandofferingadviceB.usingfiguresandgivingevidenceC.analyzingdataanddrawingconclusionsD.makingcomparisonsandgivingexamples

SeenfromspacetheearthiscoveredwithabluemantlE.Itisaplanetonwhichthecontinents洲大陆aredwarfed相形见绌bytheoceansurroundingthemandthevastnessofthemarine海洋的areA.Anastonishing80percentofalllifeonearthistobefoundhiddenbeneaththewavesandthisvastglobaloceandrivesthenaturalforceswhichkeeplifeonourplanet.TheoceanprovidesnecessarysourcesofproteinenergymineralsandotherproductsandtherollingoftheseaacrosstheplanetcreatesoverhalfouroxygendrivesweathersystemsandnaturalflowsofenergyandnutrientsaroundtheworldtransportswatermassesmanytimesgreaterthanalltheriversonlandcombinedandkeepstheearthsuitableforlivingthingstosurvivE.Withouttheglobaloceantherewouldbenolifeonearth.ItisseriouslyworryingthenthatwearedamagingtheoceanonalevelthatisunimaginabletomostpeoplE.Wenowknowthathumanactivitycanhaveaseriousinfluenceonthevitalforcesofourplanet.Wehavefundamentallychangedourglobalclimateandarejustbeginningtounderstandtheconsequencesofthat.Asyetlargelyunseenbutjustasseriousaretheinfluenceswearehavingontheocean.A.healthyoceanhasdiverseecosystemsandstrongandhealthyhabitats.TheactualstateofouroceanisafarcryfromthisnaturalstatE.A.lotofpressureisbeingputdirectlyandindirectlyonoceanecosystemsbyhumanactivities.ConsequentlyecosystemsarebreakingdownasmarinespeciesareindangerofdyingoutandoceanhabitatsarebeingdestroyeD.Withthedecreaseintheirdiversityoceanecosystemsarelosingtheirnaturalwayofrecovery.WeneedtodefendtheoceannowmorethaneverbecauseclimatechangeishavingapotentiallydisastrousimpactonthemarineworlD.1.WhatcanwelearnfromParagraph2?A.WhattheoceanlookslikE.B.Whattheoceanismadeupof.C.Whatliveintheocean.D.Whatfunctionstheoceanhas.2.Accordingtothetexttheoceandirectlyprovidespeoplewith____.A.waterformingriversB.comfortablehabitatsC.allthenaturalforcestheyneedD.drivingforcesforenergyandnutrients3.Itisnotrealizedbymanypeoplethatwehave____.A.donegreatharmtotheoceanB.benefitedgreatlyfromtheoceanC.fundamentallychangedourglobalclimateD.beguntosuffertheconsequencesofpollution4.Thebesttitleforthistextwouldbe____.A.ProtectingOurPlanetB.DefendingOurOceanC.GettingtoKnowOurPlanetD.MakeGoodUseofOurOcean

Sharkshavelivedintheoceansforover450millionyearslongbeforedinosaursappeareD.Therearenowabout360speciesofsharkswhosesizebehaviorandothercharacteristicsdifferwidely.Everyyearwecatchandkillover100millionsharksmostlyforfoodandfortheirfins.Driedsharkfinsareusedtomakesharkfinsoupwhichsellsforasmuchas$50abowlinfineHongKongrestaurants.Othersharksarekilledforsportandoutoffear.Sharksarevulnerable易受伤的tooverfishingbecauseittakesmostspecies10to15yearstobeginreproducingandtheyproduceonlyafewoffsprings后代.Influencedbymoviesandpopularnovelsmostpeopleseesharksaspeople-eatingmonsters.Thisisfarfromthetruth.Everyyearafewtypesofsharkinjureabout100peopleworldwideandkillabout25.Mostattacksarebygreatwhitesharkswhichoftenfeedonsealionsandothermarine海洋的mammals.Theysometimesmistakehumanswimmersfortheirnormalpreyespeciallyiftheyarewearingblackwetsuits.Ifyouareatypicalocean-goeryourchancesofbeingkilledbyanunprovoked非受挑衅而发生的attackbyasharkareabout1in100million.Youaremorelikelytobekilledbyapigthanasharkandthousandsoftimesmorelikelytogetkilledwhenyoudriveacar.Sharkshelpsavehumanlives.Inadditiontoprovidingpeoplewithfoodtheyarehelpinguslearnhowtofightcancerbacteriaandviruses.Sharksareveryhealthyandhaveagingprocessessimilartoours.TheirhighlyeffectiveimmunesystemallowswoundstohealquicklywithoutbecominginfectedandtheirbloodisbeingstudiedinconnectionwithAIDSresearch.Sharksareamongthefewanimalsintheworldthatalmostnevergetcancerandeyecataracts白内障.Understandingwhycanhelpusimprovehumanhealth.Aresearchshowsthatchemicalstakenfromsharkcartilage软骨havekilledcanceroustumorsinlaboratoryanimalsandthatresearchsomedaycouldhelpprolongyourlifE.Sharksareneededintheworld’soceanecosystems.Althoughtheydon’tneedusweneedthem.Wearemuchmoredangeroustosharksthantheyaretous.Foreverysharkthatbitesapersonwekillonemillionsharks.72.WhichofthefollowingisNOTareasonwhypeoplekillsharks?A.PeoplekillsharksforfooD.B.Peoplekillsharksforsport.C.Peoplekillsharksbecausetheyoftenattackswimmers.D.Peoplekillsharksoutoffear.73.Itcanbeinferredfromthepassagethat______.A.movieshavegivenpeoplethewrongimpressionofsharksB.mostsharksaredangeroustohumansC.sharkswillattackanyonewhoiswearingblackD.itisdangeroustoswimintheocean74.AccordingtothepassagewhichofthefollowingstatementsisNOTtrue?A.Therearemanydifferentspeciesofsharksbutonlyafewofthemaredangeroustohumans.B.Sharksplayanimportantroleintheoceanecosystem.C.Sharksareavaluableresourceforhuman.D.Sharkshardlygetillandtheyarenotworriedaboutbeingfishedmuch.75.Theunderlinedwordprolonginthelastparagraphbutonemeans______.A.saveB.lengthenC.ProtectD.improve

Haveyouevernoticedthecolourofthewaterinariverorstreamafteraheavyrainfall?Whatdoyouthinkcausedthischangeincolour?Itissoilthathasbeenwashedintotheriverfromtheriverbankorfromthenearbyfields.ComponentsofSoilSoilismadeupofanumberoflayers层eachhavingitsowndistinctivecolourandtexturE.Theupperlayerisknowasthelitter.Itactslikeablanketlimitingtemperaturechangesandreducingwaterloss.Thetopsoillayerismadeupofsmallparticlesofrockmixedwithrottenplantandanimalmattercalledhumus腐殖质whichisblackandgivesthetopsoilitsdarkcolour.Thislayerisusuallyrichinnutrientsoxygenandwater.Belowthetopsoilisthesubsoilalayerthatcontainsmorestonesmixedwithonlysmallamountsoforganicmatter.Thislayerislighterincolourbecauseofthelackofhumus.Beneaththesoilliesalayerofbedrock.Soilformsfromthebottomup.Overtimebedrockisattackedbyrainwindfrostandsnow.Itisgraduallybrokendownintosmallerparticlesinaprocesscalledweathering.Plantsbegintogrowandrottenmaterialsenrichthetopsoil.MostofthesoilinEasternCanadaforexamplewasformedfromweatheredrockthatwasexposedwhentheicedisappeared12000yearsago.WaterBeneaththeSoilSurfacewatercollectsandflowsabovethegroundinlakespondsandrivers.Onceinthesoilorrockitiscalledgroundwater.Gravitypullsgroundwaterthroughthesoilinaprocesscalledpercolation渗透.EventuallythewaterreachesalayercalledthewatertablE.UnderthisisbedrockthroughwhichwatercannotpercolatE.Aswaterpercolatesdownwarditdissolvesorganicmatterandmineralsfromthesoilandcarriesthemtodeeperlayers.Thiscausesaseriousproblembecauseplantsrequirethesenutrientsforgrowth.SoilpHSoilcanbeacidicneutralorbasiC.ThepHofthesoilisdeterminedbythenatureoftherockfromwhichitwasformedandbythenatureoftheplantsthatgrowandrotinit.TheacidityofrainandsnowcanlowerthepHofthegroundwaterthatentersthesoil.Byburningfossilfuelssuchascoaloilandgasolinehumanshavebeencontributingtohigherlevelsofacidityinmanysoils.Whenfossilfuelsareburnedgasesarereleasedintotheairandthenfallbacktoearthasacidrain.Acidsoilincreasestheproblemofcarryingnutrientstolowersoillevels.AsnutrientsareremovedsoilislessfertilE.Plantsgrowmoreslowlyinacidicsoilandalsobecomeeasilyattackedbydiseases.1.Thelayerofsoilthatprovidesnecessarynutrientsforplantgrowthiscalled.A.litterB.topsoilC.humusD.subsoil2.AccordingtothetextwhichofthefollowingisNOTtrue?A.SoilformsfromweatheredrockontheearthsurfacE.B.Thedeeperlayerofsoilisdarkerincolourthanthesurfacesoil.C.Airpollutionispartiallyresponsibleforacidsoil.D.Groundwatertendstocarryawaynutrientsforplantgrowth.3.Wecaninferfromthepassagethatthewatertablelies.A.betweenthetopsoillayerandthesubsoillayerB.inthesubsoillayerabovebedrockC.betweenthesubsoillayerandbedrockD.inthebedrocklayerbeneaththesubsoil4.Theunderlinedworddissolveisusedtoexpresstheideathatorganicmatterandmineralsfromsoilare.A.rushedawayintotheriverB.cleanedandpurifiedbywaterC.destroyedandcarriedawaybywaterD.mixedwithwaterandbecomepartofit

It’sasafebetthatarobotmadeyourcarandmadeyourcomputer.Prettysoontheycouldbemakingyourbedandbreakfasttoo.IncreasinglyengineersaresayingthatrobotsaregoingtomoveoutofresearchdepartmentsandintoyourhomE.CompaniesincludingGeneralElectricareworkingondesignsforsmallrobots.ProductsliketheRoombaarobotthatcancleanfloorsareflyingofftheshelves.What’sbehindthisnewrobotrevolution?It’spartlyamatteroftechnology.DevicesthatcanrecognizeandrespondtoahumanvoicehavebeendevelopeD.TherearenowafewdifferentwaysforrobotstomovearounD.Theycanwalkcrawlorrideonwheels.Robotsarebeingmadesmallerandsmaller.TheyarealsobecomingmoreandmoreablE.A.biggerpartofthestoryisonthedemandsidE.Fromthedaythetelevisionremotecontrolwasinventedpeoplearoundtheworldhavesearchedfornewwaystobelazy.Takeintoconsiderationthatmoreandmorepeoplecanaffordrobotsandthetimeseemsripetointroducerobotstotheordinaryfamily.Tobesurerobotsthatwalkontwolegsandtalklikepeoplearestillalongwayoff.Howeverrobotsthatdobasichouseworksuchascleaningorgardeningaresuretocomeoutsoon.Onethingiscertain—whentheserobotsdocomeintoourhomesitwillchangethingsforever.61.Theunderlinedpartflyingofftheshelvesinthesecondparagraphmeans________.A.Sellingwell.B.Cleaningtheshelvessmartly.C.FlyingfreelyD.Droppingontothefloor62.Whichplaysamoreimportantroleinrevolutionizingtherobot?A.Scienceandtechnology.B.Rapiddevelopmentofcompanies.C.Effectivemarketingmeans.D.Greatdemandfromthebuyers.63.WhichofthefollowingstatementsisTRUE?A.RobotshavealreadycomeintoeveryhomE.B.Technologyistheonlybasisofthedevelopmentofrobots.C.GeneralElectricisnotinterestedindesigningsmallrobots.D.Robotsthatcanwalkontwolegsandtalklikepeoplearestillfarfromus.

GrowersaroundtheworldareusingnewmethodstogrowgrapestomakewinE.Theyusenaturalandorganicmethodstocontrolharmfulinsectsandweedsinsteadofusingchemicals.NowawineryinCanadahasadoptedanaturalwaytocontrolitsgrapevines葡萄藤.TheFeatherstoneWineryisinsouthernOntario.Thegrapevineslikeotherplantsneedtobecuteveryyear.Cuttinggrapevinesmustbedoneverycarefully.Onlyatargetedareaofleavesisremovedfromthelowerpartofthevinestohelpthegrapesgrowbetter.ButattheFeatherstoneWinerynomanormachinedoesthecutting.Insteadthejobisdoneby40littlewoolylambs.DavidJohnsonownsthevineyard葡萄园.HesayshelearnedaboutusinglambswhilevisitingwineriesinNewZealanD.TheyounglambsareperfectlydesignedtodothejoB.TheyeatthegrapeleavesonthelowerpartsofthevinE.Buttheyarenottallenoughtoreachthegrapes.Theyonlyweighabout22kilogramssotheydonotbeatdownthesoil.Andtheirwastemakesgoodorganicfertilizer.Inadditionusingthelambscostsmuchlessthanhiringworkerstocutthevinesforsevenweeksinsummer.AndwhenthecuttingisdoneinAugustthelambsbecometastydishes.Mr.JohnsonsayshehadadifficulttimefindingenoughlambstodothejoB.Thereareabout50millionlambsinNewZealanD.ButtherearenotnearlyasmanyinOntario.Alsosomeorganicpesticides杀虫剂areharmfultolambs.Andthelambsmustbewatchedtomakesuretheydonoteattoomuchofthegrapevines.DavidJohnsonsaysthelambshelphimcarryouthisenvironmentalideasaboutfarming.TheyarelovelyandpeacefulandhelikeshavingtheminhisvineyarD.PeoplevisitingthevineyardalsoenjoywatchingthelambsdotheirjoB.29.Farmerswhogrowgrapeswithnaturalandorganicmethods________.A.don'tcutgrapevineseveryyearB.don'tusechemicalstocontrolharmfulinsectsandweedsC.don'tneedtocontrolharmfulinsectsandweedsD.don'tuseorganicfertilizer30.Inordertohelpthegrapesgrowbettergrowers________.A.onlyhavetoremovethedeadleavesB.needtoremoveaspecificareaofleavesC.shouldn'tremoveanypartoftheplantsD.shouldletlittlelambsdothecutting31.Paragraph4ismainlyabout________.A.thefutureofgettinglambstodothecuttingB.theworriesaboutusingorganicpesticidesC.thewaystogetlambstodothecuttingD.theproblemsrelatedtolambsdoingthecutting32.WecaninferfromthepassagethatDavidJohnson________.A.ownsseveralwineriesinCanadaB.buyslambsfromNewZealandC.isconcernedaboutprotectingtheenvironmentD.loveskeepinglambsinsteadoffarming

Babiesarenotjustpassingidletimewhentheystaregoggle-eyedatthetelevision—theyareactuallylearningabouttheworldU.S.researcherssaiD.ParentsmaywanttolimitwhattheirbabiesseeontelevisionbasedonthestudysaidDonnaMummeassistantprofessorofpsychologyatTuftsUniversityinBostonwholedtheresearch.Childrenasyoungas12monthsaremakingdecisionsbasedontheemotionalreactionsofadultsaroundthemMummesaidinastatement.Itturnsouttheycanalsouseemotionalinformationtheypickupfromtelevision.ThismeansthatadultsmightwanttothinktwicebeforetheyspeakinaloudandharshvoiceorletababyseetelevisionprogramsmeantforinformationabouttheworlD.A.motherurgingherbabytoeatsomeyummysouponabrothercryinginfearwhenadogapproachescaninfluenceababy’sreaction.Mumme’steamtestedbabiestodeterminE.Iftelevisionhasthesameinfluenceshowingactorsreactingonavideotapetoobjectssuchasredspiralletterholderabluehumpyballandayellowgardenhoseattachment.Babiesaged10monthsor12monthswerelatergiventhesameobjectstoplaywith.Ten-month-oldsdidnotseemtobeinfluencedbutthevideobuythe1-year-oldswerE.Whentheactorsactedneutrallyorpositivelytoanobjectthebabieshappilyplayedwiththem.Butiftheactorhadseemedafraidordisgustedthebabieswouldavoidtheobject.63.Psychologyisthestudyof________..A.human’ssocietyanditsgrowthB.human’shopeshaddreamsC.human’smindandbehaviorsD.human’slanguagesandcultures64.WhichofthefollowingisMumme’sconclusion?A.Smallbabiesshouldnotbeallowedtowatchtelevisionprograms.B.Adultsneedtothinktwicebeforetheyactinfrontofsmallbabies.C.TVprogramsprovidesmallbabieswithalltheinformationtheyneeD.D.One-year-oldscanbeemotionallyinfluencedbyTVprograms.65.Mummereachedhisconclusionby__________..A.measuringthetimebabiesspentinfrontofTV.B.makingTVprogramsandadvertisementsforkids.C.showingactorshowtoreacttobluebumpyballsD.observingsmallbabies’reactionstoTVprograms66.Whichofthefollowingmaythestudyleadtoaccordingtotheresearchers?A.Parentsmaywanttolimitwhattheirbabiesseeontelevision.B.Actorsmaytrytobehavethemselveswellinfrontofbabies.C.BabiesmaybeallowedtochoosewhattheyseeonTV.D.Scientistsmaystopignoringbabies’emotionalworlD.

OneofourbiggestfearsnowadaysisthatourkidsmightsomedaygetlostinaseaoftechnologyratherthanexperiencingthenaturalworlD.Fear-producingTVandcomputergamesareleadingtoaseriousdisconnectbetweenkidsandthegreatoutdoorswhichwillchangethewildplacesoftheworlditscreaturesandhumanhealthfortheworseunlessadultsgetworkingonchild’splay.Eachofushasaplaceinnaturewegosometimesevenifitwastorndown.WecannotbethelastgenerationtohavethatplacE.Atthisratekidswhomissthesenseofwonderoutdoorswillnotgrowuptobeprotectorsofnaturallandscapes.IfthedeclineinparksusecontinuesacrossNorthAmericawhowilldefendparksagainstencroachment蚕食?asksRichardLouvauthorofLastChildintheWoods.Withouthavinganatureexperiencekidscanturnoutjustfinebuttheyaremissingoutahugeenrichmentoftheirlives.Thatappliestoeverythingfromtheirphysicalhealthandmentalhealthtostresslevelscreativityandcognitive认知的skills.Expertspredictmodernkidswillhavepoorerhealththantheirparents—andtheysayalackofoutsideplayissurelypartofit;researchsuggeststhatkidsdobetteracademicallyinschoolswithanaturecomponentandthatplayinnaturefosters培养leadershipbythesmartestnotbythetoughest.EvenatinyoutdoorexperiencecancreatewonderinachilD.Thethree-year-oldturningoverhisfirstrockrealizesheisnotaloneintheworlD.A.clumpoftreesontheroadsidecanbethewholeuniverseinhiseyes.WereallyneedtovaluethatmorE.KidsarenotresponsiblE.Theyareover-protectedandfrighteneD.Itisdangerousouttherefromtimetotimebutrepetitivestressfromcomputersisreplacingbreakinganarmasachildhoodrite仪式ofpassagE.EveryonefromdeveloperstoschoolsandoutdoorscitizensshouldhelpregainforourkidssomeofthefreedomandjoyofexploringtakingfriendshipinfieldsandwoodsthatcementloverespectandneedforlandscapE.AsparentsweshoulddevotesomeofourenergiestotakingourkidsintonaturE.ThiscouldyetbeourgreatestcausE.41.ThemainideaofParagraph2isthat________.A.kidsmissthesenseofwonderoutdoorsB.parksareindangerofbeinggraduallyencroachedC.RichardLouvistheauthorofLastChildintheWoodsD.childrenareexpectedtodevelopintoprotectorsofnature42.Accordingtothepassagechildrenwithoutexperiencingnaturewill________.A.keepahighsenseofwonderB.beover-protectedbytheirparentsC.belesshealthybothphysicallyandmentallyD.changewildplacesandcreaturesforthebetter43.Accordingtotheauthorchildren’sbreakinganarmis________.A.thefaultonthepartoftheirparentsB.thenaturalexperienceintheirgrowingupC.theresultoftheirowncarelessnessinplayD.theeffectoftheirrepetitivestressfromcomputers44.Whatdoestheunderlinedwordcementinthelastparagraphmean?A.strengthenB.enrichC.spreadD.present45.Inwritingthispassagetheauthormainlyintendsto________.A.blamechildrenforgettinglostincomputergamesB.encouragechildrentoprotectparksfromencroachmentC.showhisconcernaboutchildren’slackofexperienceinnatureD.inspirechildrentokeepthesenseofwonderaboutthingsaround

ReadwithGreaterSpeedDoyouhavedifficultyreadinginclass?Ifsoaspecialreadingprogrammethathelpsmatch匹配soundswithletterscouldspeedupyourbrain.AtleastoneoutofeveryfiveelementaryschoolstudentsintheU..S.hastroublelearningtoreadevenwhenthestudentsaregoodatothersubjects.Thebiggestchallengeformanyofthesekidsscientistssayismatchingsoundswithletters.ResearchersfromYaleUniversity耶鲁大学U.S..studiedagroupofchildrenfromNewYorkandConnecticutStatE.Aspartofthestudy37strugglingreadersreceivedspecialtutoring.Everydayinstructorsworkedwiththemonrecognizinghowwrittenlettersrepresentunitsofsoundcalledphonemes音素.Thestudentsalsopracticedreadingaloudandspelling.BytheendoftheschoolyearthesechildrencouldreadfasterthanbeforE.Theyalsomadefewermistakesandunderstoodmoreofwhattheyreadthantheycouldearlierintheyear.Aspartoftheirstudytheresearchersusedaspecialmachinetotakeactionphotosofthestudents'brains.ThepicturesshowedanincreaseinactivityinthebackofthebrainontheleftsidE.ThisisthesamepartofthebrainthatbecomesactivewhengoodreadersreaD.Thisactivatedbrainareaappearstoincludeastructure结构thathelpspeoplerecognizefamiliarwrittenwordsquickly.InlowerlevelreadersthisstructureremainsinactivE.Ayearlaterthebrainstructurewasstillworkinginthestudentswhohadgonethroughthespecialtutoring_andtheycontinuedtodowellinreadingtests.Anothergroupinthestudywhowentthroughamoretraditionalreadingprogrammedidn'tshowthesameprogress.Howeversomeresearchersstilldoubtthestudy.Theybelievethatreadingwithoutmakinganynoiseorlinkingwordstosoundsismoreefficient.31.Thereadingprogrammetalkedaboutinthispassageisdesignedspeciallytohelp________.A.youngpupilswhoarebackwardingeneralsubjectsB.elementarystudentswhocan'tmatchsoundswithlettersC.elementarystudentswhosebrainstructureisinactiveD.smallpupilswhohavedifficultyinreading32.Theprogrammetalkedaboutinthepassageseemsto________.A.improvestudents'abilityinstudyingB.improvestudents'abilityinreadingaloudC.activatethebrainareaontheleftsideD.activatethebrainareaontherightside33.Theresearcherswhodoubttheprogrammebelievethatstudentsshould________.A.readingaloudB.readsilentlyC.matchsoundswithlettersD.improvetheirreadingabilitynaturally34.Theunderlinedwordtutoringinthelastpassagehasasimilarmeaningto________.A.trainingB.effectC.struggleD.purpose

Wedon'tknowhowdifferentourfuturewillbeinthefuturE.Wecanonlytrytoimagineit.Atfirstwethinkabouthumanrelationship.Intheyear2050wewillusecomputersalmosteverydaywewillbemakingnewfriendsthroughtheInternet-evenourhusbandsorwiveswillbemetinthisway.Itwillbemuchfasterandeasierforus.Ontheotherhandourrelationshipswithpeoplewon'tbeasimportantastheyaretoday-wewillfeelalittlelonely.Computerswillalsohelpusinmanyotheractivitiesin2050.Forexampletheywillbeusedbythechildrenatschooltomaketheirlearningeasier.Inadditiontherewillbemuchmoreothermachineswhichwillplayasimilarroleascomputerslikerobotswhichwilldothehomeworkforus.Spendingholidayswillalsobecompletelydifferent.Travelingtootherplanetsortothemoonwillheavailableforeveryone.Meansoftransportwillofcoursechangetoo.Wewillbeusingsolar-poweredearswhichwillbemuchcleaner.Wecouldexpectthatthefastertechnologicalprogresswouldleadtoamorepollutedenvironment.Butitisn'ttrue.Wewillpaymoreattentiontoprotectingtheenvironment.AndScientistswillprobablyfindcuresformanydangerousdiseaseslikecancerorAIDS.Thereforeoursurroundingsaswellashealthwillbeinbettercondition.Althoughwecan'tpredicttheexactchangeswhichwillbemadeintheworldweoftenthinkaboutthem.Weworryaboutourandourchildren'sfuturewehaveexpectationshopesaswellasfears.ButIthinkweshouldberathersanguineaboutourfuture.Weshouldbehappyandbelievegoodthingswillhappen.51.Whywillpeopleprobablyfeelalittlelonelyin2050?A.Becausethenumberofpeoplewillbecomemuchsmaller.B.Becausetherewillbelessface-to-facecommunicationC.Becausepeoplewon'tlikemakingfriendswitheachotherD.Becausepeoplewon'tcommunicatewitheachothermuchoften.52.Thethirdparagraphmainlytellsis_______A.thatcomputerswilldoallthethingsforhumanbeingsB.howpeoplewillusecomputerstocommunicatewitheachotherC.thatmachineslikecomputersandrobotswillhelppeoplealotD.howpeoplewilluserobotstodothehousework53.Accordingtothepassagewhichofthefollowingwillhappenin2050?A.Therelationshipbetweenpeoplewillbemoreimportantthantoday.B.Thewayofspendingholidayswillbethesameasthatoftoday.C.Itwon'tbedifficultforpeopletotraveltootherplanetsD.Ourenvironmentwillbemuchmorepollutedwithagrowingnumberofcars54.Theunderlinedwordsanguineinthelastparagraphmostprobablymeans_______.A.disappointedB.surprisedC.curiousD.optimistic55.Whatdoesthepassagemainlytalkabout?A.Howpeoplewillcommunicateintheyear2050.B.Whatourlifewillbelikeintheyear2050.C.Howpeoplewilltravelandspendtheirholidaysintheyear2050.D.Whathightechnologywillappearintheyear2050.

CookingKillsFourMillionPeopleaYear.Pollutedairborneparticles大气悬浮颗粒kill7millionpeopleayearreportstheWorldHealthOrganization.ThatnewsmaynotcomeasasurprisetoanyonewhohasseenimagesofchimneysinBeijingDelhiorMexico.Butthosefactories—oreventhejammedroadwaysofmoderncities—arenotthebiggestkiller.Eachyearsome4.3millionpeopledieearlierthantheyshouldbecauseofpollutedairinsidetheirhomessaystheWHO.What'scausingtheairinsidepeople'shomestobesopoisonousthatitkillsaround11000peopleaday?Stoves.Havinganopenfireinyourkitchenislikeburning400cigarettesanhour.saysKirkSmithaprofessorattheUniversityofCaliforniaatBerkeleywhoseresearchsuggeststhathouseholdairpollutionfromcookingkilledbetween3.5millionand4millionpeoplein2013.Notallstovescausethiskindofharm.TheonesSmith'stalkingaboutarethosethatthe3billionpeopleinthedevelopingworlduseforheatandcookingwhichburnsolidfuelssuchaswoodcoalorcropwasteinsteadofgas.Thesmokefromthosefiresproducesharmfulfineparticlesandcarbonmonoxideintohomes.Poorventilationthenpreventsthatsmokefromescapingraisingfineparticlelevels100timeshigherthanthelimitsthattheWHOconsidersacceptable.Breathingthisairdayindayouteventuallycausesalotofdiseases:morethanathirdofthe4.3milliondieofastrokewhileaquarterdieofheartdisease.Andaroundone-thirdofannuallungdiseasedeathsworldwideareduetowastefromcoalstoves.Exposuretendstobeextremelyharmfulforthepeoplewhospendthemosttimearoundthefire—usuallywomenandyoungchildren.InfacttheWHOreportsthathouseholdairpollutionalmostdoublestheriskforchildhoodlungdisease.64.AccordingtoKirkSmith'sresearch______.A.factoriesarethebiggestkillerworldwidenowadaysB.burning400cigarettesanhourisextremelydangerousC.householdairpollutionfromcookingissurprisinglyharmfulD.some4.3millionpeopledieearliereachyearthantheyshould65.Whatshouldbethedeadlykillerinahouseholdkitchen?A.Solidfuels.B.Coalstoves.C.Poorgas.D.Cookingsmoke.66.TheunderlinedwordventilationinParagraph4probablymeans______.A.airingB.cookingC.burningD.cooling67.Theauthorintendstotellpeople______.A.howtoavoidpollutedairintheirhomesB.tostopcookinginthehouseholdkitchenC.toguardagainsthouseholdpollutionfromcookingD.howtopreventchildhoodlungdiseasesinhousehold

AnalcoholbreathtestABTisoftenusedbythepolicetofindoutwhetherapersonisdrunkwhiledriving.IntheUnitedStatesthelegalbloodalcohollimitis0.08%forpeopleaged21yearsorolderwhilepeopleunder21arenotallowedtodriveacarwithanylevelofalcoholintheirbody.A.positivetestresultaresultoverthelegallimitallowsthepolicetoarrestthedriver.Howevermanypeoplewhotestedpositiveonthetesthaveclaimedthattheyonlydrankanon-alcoholicenergydrink.CanoneoftheseenergydrinksreallycausesomeonetotestpositiveonanABT?ResearchersinMissourisetupanexperimenttofindout.Firsttheamountofalcoholin27differentpopularenergydrinkswasmeasureD.Allbutonehadanalcohollevelgreaterthan0.005%.Innineofthe27drinksthealcohollevelwasatleast0.096%.ThescientiststheninvestigatedthepossibilitythatthesesmalllevelsofalcoholcouldbediscoveredbyanABT.TheyaskedtestsubjectstodrinkafullcanorbottleofanenergydrinkandthengaveeachsubjectanABToneminuteand15minutesafterthedrinkwasfinisheD.For11ofthe27energydrinkstheABTdidfindthepresenceofalcoholifthetestwasgivenwithinoneminuteafterthedrinkwastaken.Howeveralcoholcouldnotbediscoveredforanyofthedrinksifthetestwasgiven15minutesafterthedrinkwasconsumeD.Thisshowsthatwhenthetestistakenplaysanimportantroleinthetestresult.ThesoonerthetestisconductedaftertheconsumptionofthesedrinksthemorelikelyapositivealcoholreadingwillbeobtaineD.【小题1】Whatisthelegalalcohollevelfora20-year-olddriverintheUS?A.0.000%.B.0.005%.C.0.080%.D.0.096%.【小题2】WhatisthepurposeoftheMissouriexperiment?A.Towarnpeopleofthedangersofdrinkingenergydrinks.B.Tointroduceanewmethodofcalculatingbloodalcohollevels.C.TodiscovertherelationbetweenenergydrinksandABTtestresults.D.TochangethecurrentlegalalcohollimitfordriversintheUnitedStates.【小题3】TheunderlinedwordsubjectsinParagraph2refersto_____.A.thethingsthatarebeingdiscussedB.areasofknowledgestudiedinschoolC.thepersoninanexperimentD.thepeoplewhobelongtoacountry【小题4】WhichofthefollowingaffectstheABTtestresultmostforenergydrinkconsumers?A.Theageofthepersonwhotakesthetest.B.Theplacewherethetestisgiven.C.Theequipmentthatthetestuses.D.Thetimewhenthetestistaken.

Long-timeexposuretoairpollutioncanleadtophysicalchangesinthebrainandcausetroubleinlearningandmemoryandevenanxiety.ThisissuggestedbytheresultsofnewresearchonmicE.Whileotherstudieshaveshowntheharmfuleffectsofpollutedairinthelungsandheartthisisthefirsttoshowthenegativeeffectonthebrain.TheteamofLauraFonkenRandyNelsonfromtheOhioStateUniversityUSAhasspreadtothebrainapreviouslineofresearchwhichfoundthatfineparticulate微粒matterfloatingintheairmainlybecauseofairpollutioncausedbyhumanscausesswellinginmuchofthebodyandmayberelatedtohighbloodpressureproblemsandsomeotherdiseases.IntheresearchFonkenandhiscolleaguesexposedmicetopollutedairforsixhourseachdayfivedaysaweekoveraperiodof10monthsalmosthalftheaveragelifelengthofmicE.Pollutedaircontainsfineparticlescreatedbycarsfactoriesandnaturaldust.Fineparticlesofthiskindaretinyabout2.5micrometersindiameteroraboutone-thirtieththewidthofahumanhair.Theseparticlescangodeepintolungsandotherorgans.Theconcentrationofthisparticulatematerialtowhichtheyexposedmiceisequaltotheconcentrationatwhichpeoplecanbeexposedinsomepollutedurbanareas.Afteraperiodof10monthstheresearchersgottheanimalstohaveaseriesofbehavioraltests.Boththebehaviorofmiceandtheresultsofneurological神经的testsdonetothemshowthatthosewithinthepollutedairhadmoreproblemsinlearningandmemoryandhigherlevelsofanxiety.Theresultssuggestthatlong-timeexposuretopollutedaircanhavemeasurablenegativeeffectsonthehumanbrainandcancauseavarietyofmentalhealthproblems.Thiscouldhaveimportantconsequencesforthoselivingandworkinginpollutedurbanareas.31.Theresultsofnewresearchonmicefirstsuggestthatpollutedairmainlydoesharmto.A.normalorgansB.lungsandheartC.mentalhealthD.bloodpressure32.Whatharmfuleffectofpollutedairismentionedinotherstudies?A.Theharmfuleffectonlearning.B.Theharmfuleffectonalltheorgans.C.Theharmfuleffectonlungsandheart.D.Theharmfuleffectonimprovingmemory.33.ThebadeffectsoftinyparticlesinpollutedairarethoseExcept.A.highbloodpressureproblemsB.makinghumanhairthinnerC.differentkindsofdiseasesD.swellinginmuchofthebody34.Fromthelastsentencewecaninferthatpeoplelivinginpollutedurbanareas.A.arelikelytosufferfrommentalproblemsB.canmeasurethenegativeeffectonthemC.showlittleconcernforairpollutionD.canbeexposedtopollutedairlonger35.Whichofthefollowingisthebesttitleforthepassage?A.Long-timeExposuretoAirPollutionB.EvidenceandConcernofAirPollutionC.MeasurableEffectonHumanBrainD.MentalProblemsCausedbyAirPollution

ThedreamofflyingintoouterspacecherishedbytheChinesepeopleforcenturieswillsooncometruE.Chinalauncheditsfourthunmannedspacecraft飞船ShenzhouⅣonDecember30attheJiuquanSatelliteLaunchCentreinGansuProvincE.Itwasthe27thconsecutive连续的andsuccessfullaunchofChina-maderocketssinceOctober1996.ThislaunchhasmadeitmorerealisticforChinatosendapersonintospaceonitsownfollowingRussiaandtheUSA.QiFarenleadingdesignerofthespacecraftsystemsaidallthefunctions功能designedformannedflightshavewithstood经受住thetestofthreeprevioussuccessfullaunchesandreturnlandingsoftheShenzhouspaceships.ChinalaunchedtheShenzhouⅠShenzhouⅡandShenzhouⅢspacecraftsin19992001and2002respectively.ShouzhouⅣwastomakeitamorecomfortableplaceinwhichastronautscanliveandwork.AllpartsoftheapplicationsystemformannedflightareaboardtheShenzhouⅣcraftinalltestflights.China’smannedflightprogrammebeganin1992.A.numberofunmannedtestflightswillbelaunchedbeforeChineseastronautsaresentintospacE.LeadingscientistsinchargeofChina’smannedspaceprogrammesaidthesuccessfullaunchoftheShenzhouⅣlaidasolidfoundationforthecountry’sfuturetaskofsendingChineseastronautstoouterspacE.ThespacecraftreturnedtotheearthonJanuary5aftercompletingsevenexperimentsinspacE.OfficialsatthecentresaidthatShenzhouⅤamannedspacecraftisexpectedtobelaunchedlaterthisyear.64.HowmanycountriescansendapersonintospaceonitsownbynowA.NotmentioneD.B.3.C.4.D.2.65.China’smannedflightprogrammebeganin________.A.October1996.B.1992C.1999D.January200366.Asamatteroffact________.A.ShenzhouⅤhasbeenlaunchedB.ShenzhouⅣwasamannedspacecraftC.ShenzhouⅢandShenzhouⅣwerenotlaunchedinthesameyearD.thedreamofmanflyingintoouterspacehascometrueinChina67.Whichisthemostsuitabletitleforthepassage?A.TheSuccessfulLaunchingofShenzhouⅣ.B.TheLandingofShenzhouⅣ.C.China’sMannedFlightProgrammE.D.TheThirdCountrySendingaPersonintoOuterSpacE.

Electricaldevices仪器couldsoonusepowermadebyhumanenergy.ScientistssaytheyhavedevelopedanexperimentaldevicethatproduceselectricityfromthephysicalmovementofapersonwalkingBritishscientistMaxDonelanandotherscientistsinCanadaandtheUnitedStatesdevelopedthedevicE.Thedeviceconnectstoaperson’skneE.Asthepersonwalksthedevicecapturesenergyeachtimethepersonslowsdown.Todothisthedevicehelpswiththeslowingsownmovementofthelegthemovementsofthewalkingpersonpushpartsofasmallmachinethatproduceselectricity.UsingthedeviceanadultwalkingquicklycouldproducethirteenwattsofelectricityinjustaminutE.Donelansayswalkingatthatspeedcouldproduceenoughpowertooperatealaptopcomputerforsixminutes.ThereareseveralpossibleusesforthedevicE.Developerssayitcouldhelppeoplewhoworkinareaswithoutelectricitytooperatesmallcomputers.Thedevicecouldalsoheusedinhospitalstooperateheartpacemakers起博器itcouldevenbeusedtoassistinthemovementofroboticarmsandlegs.TheexperimentalversionofthedeviceweighsaboutoneandahalfkilogramsbutitistoocostlyformostpeopletobuybuttheresearchershopetomakealighterlesscostlyversionAnimprovedversionshouldbereadyinoneyear.Thedevelopershopethedevicewillonedayhelpdevelopingcountries;nearlytwentyfivepercentofpeoplearoundtheworldlivewithoutelectricpower.Asimilarproductwasinventedin2005byLarryRomeoftheUniversityofPennsylvaniaHecreatedabagcarriedonaperson’sbackthatalsoproducespowerfromwalking.Thekneedevicedoesnotproduceasmuchelectricityasthebagbutthebagrequiresthewalkertocarryaloadoftwentytothirtykilograms.【小题1】.ThesecondparagraphmainlytalksaboutA.whodevelopedthedeviceB.howthedeviceworksC.severalpossibleusesforthedevicesD.howmuchelectricitythedevicecanproduce【小题2】.Whatisthedisadvantageoftheexperimentalversionofthedevice?A.ItistooheavyforthewalkertobearB.ItistoocomplexforpeopletouseC.ItistooexpensiveformostpeopletoaffordD.Itwillslowdownone’swalkingspeed【小题3】.ComparedwiththedevicedesignedbyLarryRomethisnewdeviceA.producespowerwithoutaddingmoreloadstothewalkerB.canproducemorepowerinamuchshortertimeC.needstobeequippedwithabatteryD.canhelpthewalkerwalkfaster【小题4】.FromthepassagewecanlearnthattheelectricaldevicecanA.helphousewivesoperatethewashingmachineB.makeitmucheasierforustogoonlineC.producemoreelectricitythanthatinventedbyLarryRomeD.beappliedinmedicalfieldstooperateheartpacemakers【小题5】.WhatwouldbethebesttitleforthepassageA.FirstdevicepoweredbywalkingwillsoonbeonthemarketB.AdvancedtechnologybringsinanewwaytooperateheartpacemakersC.DevicegivesnewmeaningtotheideaofpowerwalkingDHumanenergywillbecomeamainsourceofelectricity

InmostsituationslighthelpsusseE.Butwhenitcomestolookingatthenightskylightisactuallyakindofpollution.Itpreventsourviewofsomeoflife’smoststrikingsights:starsplanetsandevengalaxies银河系.WhenIwasalittleboyIlovedthenightsky.Irememberlookingupandtheskywasfilledwithstars.IbecameanastronomerbecauseIwasamazedbytheirbeautysaysRobertGentNowinmostbigcitieskidscan’tseethestarslikeIdiD.Normallyabout2500individual单个的starsarevisibletothehumaneyeswithoutusinganyspecialequipment.Butbecauseoflightpollutionyouactuallyseejust200to300andfewerthanadozenfromsomecities.OnlyoneinthreeAmericanscanseeourowngalaxywiththenakedeyes.Thosepeoplelivefarawayfromthelightsofbigcitiesofficebuildingsandshoppingmalls.Fortunatelythere’saninexpensiveandusefulway.Ifweshinelightsdownatthegroundinsteadofupintotheskyanduselowerbrightnesslevelswecansavebigamountsofenergyandkeepthebeautyofthenightsky.Manycitiesandtownshavepassedlawslimitinglightsatnightmakingsureenoughshineforsafetywithoutcreatingmuchlightpollution.LightpollutionaffectsmorethanourviewoftheheavensandcanharmwildlifE.Migratingbirds候鸟sometimesflyovercitiesandbecomeconfusedbythebrightnessflyingincirclesuntiltheydropfromexhaustion.Seaturtlesneeddarkbeachesfornestingandwon’tapproachbrightlights.Toomuchlightatnightmayevenaffecthumanhealth.ForallthesereasonsresearchersareworkingonwaystouselightsonlywhenandwheretheyaretrulyneedeD.Everyonedeservestolookupatthesky.71.Accordingtothetextusingournakedeyes________.A.peopleinremoteareascanseemorestarsthanthoseinbigcitiesB.overonethirdAmericanscanseeourowngalaxyC.aboutoneinthreeAmericansinbigcitiescanseeourowngalaxyD.Americanscanonlysee200to300stars72.Manycitiesandtownshavepassedlawslimitinglightsatnightmainlyto____________.A.savetheelectricityB.makesureofmigratingbirds’safetyC.letyoucountthenumberofstarsD.avoidmuchlightpollution73.Whatdoesthefourthparagraphmainlytalkabout?A.Thecauseoflightpollution.B.Thewaytoreducelightpollution.C.Theeffectoflightpollution.D.People’sattitudetowardslightpollution.74.Theunderlinedwordexhaustioninthelastparagraphmeans_______.A.airpollutionB.tirednessC.breathD.brightness75.Whichwouldbethebesttitleforthetext?A.LightPollutionB.SeekingtheSkyC.StarsintheSkyD.CityPollution

Imaginethatthegenome基因组isabook.Thebookconsistsof23chapterswiththousandsofstoriesmadeupofparagraphswordsandlettersondifferentlevels.Thereareonebillionwordsinthebookwhichmakesitlongerthan5000volumesthesizeofthisbook.oraslongas800Bibles.IfIreadthegenomeouttoyouattherateofonewordpersecondforeighthoursadayitwouldtakemeacentury.IfIwroteoutthehumangenomeoneletterpermillimetermytextwouldbeaslongastheRiverDanubE.多瑙河Thisisanenormousdocumentahugevolumeacookbookofgreatlengthanditallfitsinsidetheextremelysmallnucleus核ofatinycellthatfitseasilyupontheheadofapin.针Theideaofthegenomeasabookisnotstrictlyspeakingevenametaphor比喻.Itistruetoagreatextent.A.bookisapieceofdigitalinformationwritteninone-directionalformanddefinedbyacodethattranslatesasmallalphabetofsignsintoalargedictionaryofmeaningsthroughtheorderoftheirgroupings.SoisagenomE.TheonlycomplicationisthatallEnglishbooksreadfromlefttorightwhilesomepartsofthegenomereadfromlefttorightandsomefromrighttoleftthoughneverbothatthesametimE.WhileEnglishbooksarewritteninwordsofdifferentlengthsusingtwenty-sixlettersgenomesarewrittenentirelyinthree-letterwordsusingonlyfourletters.AndinsteadofbeingwrittenonflatpagestheyarewrittenonlongchainsofDNAmolecules分子.Thegenomeisaverycleverbookbecauseintherightconditionsitcanbothphotocopyitselfandreaditself.42.HowdohumangenomesreadaccordingtothepassageA.Onlyfromlefttoright.B.Onlyfromrighttoleft.C.FrombothdirectionsatthesametimE.D.FromonedirectionatatimE.43.Wecanlearnfromthepassagethatthehumangenome.A.isaslongastheRiverDanubeB.canbeeasilyplacedontheheadofapinC.iscodedwithanalphabetoffourlettersD.issmartenoughtoreadandtakephotosofitself44.Itcanbeconcludedthatthepassageismainlywrittenfor.A.specialistsinthefieldB.generalreadersC.naturalscientistsD.readerswithacademicbackground学术背景45.Therealpurposeoftheauthor’scomparisonofthegenometoabookis.A.tofocusonthedifferencesbetweenthetwoB.tolayemphasisonthesimilaritiesbetweenthetwoC.tosimplifytheconceptofthehumangenomeD.togiveanexactdescriptionofthehumangenome

Studiesshowthatthewaymostofusspendourmorningsisexactlyoppositetotheconditionsthatexpertstellustopromoteopen­mindedthinking.Takehurriedwake­upforexampleinastudyresearchersreportedthatimaginative富于想象的ideasaremostlikelytocometouswhenwe'repowerlessandnotfocuseD.ThebrainconditionsareattheirweakestinthesemomentsallowingunexpectedconnectionstobemadE.Sleepypeople'smoreoutwardmovingthinkingleadsthemtowidentheirsearchwhichleadstoanincreaseincreativeproblemsolving.Bynotgivingyourselftimetoadjustyourabsentmindyou'remissingthesurprisingsolutionsitmayoffer.Thestresshormone荷尔蒙canharmcertainphysicalpartsthatcoatourbraincells.DamagetothesepartsslowsdownthespeedwithwhichsignalsaretransportedmakinglightningquickFindit！momentslesslikely.Arecentstudyfoundthatsubjects被试者whowatchedasorrow­makingvideowerelessabletosolveproblemscreativelythanpeoplewhowatchedanupwardvideo.ApositivemoodwroteprofessorRubyNadlerincreasesadaptabilityofrecognitionwhileanegativeonenarrowsourscopE.SowhatshouldwedoinmorningsWe'dsetthealarmafewminutesearlyandlieawakeinbedfollowingourthoughtswheretheyleadandwritingdownanycreativethought.AndonceintheofficeoneoftherightthingstodoisdrinkcoffeE.Caffeine咖啡因notonlymakesusmorealertbutalsoincreasesthebrain'slevelofpositivehormonewhichinfluencesfeelingsofmotivationandrewardwhenwehitonagreatideA.Afterwegetthatcupofcoffeewe'ddirectourcomputerbrowsernottothenewsofthedaybuttothefunniestvideostheweboffers.Nowthere'sYouTube­videooflaughingresources.Laughingisagoodwaytostarttheday.36.WecaninferfromParagraph1thatmostpeoplemay________inmornings.A.rushtomakethemselvesawakeningB.promoteopen­mindedthinkingC.doasexpertstellthemtodoD.trytosolveproblemscreatively37.InParagraph2theauthortellsusthat________.A.thestresshormoneisakindofskinB.thestresshormonecoatsourbraincellsC.sorrow­makingvideosarelesscapablethanupwardvideosD.thestresshormonemaydamagecertainphysicalparts38.Whatmightaswellwedointhemorning?A.TosetthealarmafewminutesearlierthanworkingtimE.B.TolieawakeinbeD.C.TonotethegoodideathatoccurstouswhileinbeD.D.Toleadtowherecreativethoughtexists.

Microwavesmaybegreatatwarmingupfoodbutwhataboutwarmingpeople?UsingmicrowavestodirectlyheatownersofaroomwouldsavemuchoftheenergywastedbyheatingwallsandfurniturE.AnddespitepopularideasaboutmicrowavesthistechniquewouldbesafeaccordingtoCharlesR.BuffleroftheMicrowaveResearchCenterinMarlboroughNewHampshirE.Hefoundthatlow-powermicrowavesonlypenetrate穿过theskinwithnonegativeeffects.TotestthisideaBufflersubjectedhimselftomicrowavesinaspecialroomusingastandard500-watt2459MHzmagnetron磁控管.Hefoundthatapersonwillstarttofeelwarmthatabout20kilowattspersquarecentimeterkw/sq.cm;asatisfactoryfeelingofwarmthoccursbetween30and50kw/sq.cm.Bycomparisonapersonstandinginnoondaysummersunfeelstheamountof85kw/sq.cm.Andafrozenmeatpieinyourmicrowaveovenreceivesabout1000kw/sq.cm.InhousesofthefutureeachroomcouldbeprovidedwithitsownmagnetronsaysBuffler.Whenyousteppedintothelivingroomforexampleamotiondetector运动感应器wouldturnonthemagnetronfillingtheroomwithlow-powermicrowaves.Inthesamewaythatamicrowaveovenheatsupahamburgerbutnottheplateit'sonyouwouldfeelwarmthfromthemicrowaveswithoutchangingthetemperatureofyourcoffeetablE.Youcouldhowevermakeyourfavoriteeasychairevenmorecomfortablebytreatingitwitharadiation-absorbingchemical.Whileitmightbesometimebeforehomeownersarecomfortableenoughwiththeideatosetupwhole-bodymicrowaveheatersinhousesBufflersaysmicrowavesmayattractlivestock家畜farmers.LambsthatarebornoutdoorsinwinterforexamplearefrequentlylosttocolD.Microwavescouldwarmthelambssafelyandquickly.72.What'sthepassagemainlyabout?A.A.newheatingsystem.B.A.newmicrowaveoven.C.A.populartechniquE.D.Themagnetron.73.FromParA.2whichofthefollowingisNOTthecharacteristicofamicrowaveheater?A.ItissafE.B.Itsavesenergy.C.Itdirectlyheatspeopleinaroom.D.Itheatswallsandfurnitureinaroom.74.Thetestshowsthatwhenapersonfeelscomfortablewarmthhereceivesabout________.A.20kw/sq.cm.B.40kwlsq.cm.C.60kw/sq.cm.D.85kw/sq.cm.75.FromParA.4wecanknowthat________fillstheroomwithlow-powermicrowaves.A.themagnetronB.themotiondetectorC.themicrowaveovenD.theradiation-absorbingchemical

Somescientistssaythatanimalsintheoceansareincreasinglythreatenedbynoisepollutioncausedbyhumanbeings.Thenoisethataffectsseacreaturescomesfromanumberofhumanactivities.Itiscausedmainlybyindustrialunderwaterexplosionsoceandrillingandshipengines.Suchnoisesareaddedtonaturalsounds.Thesesoundsincludethebreakingoficefieldsunderwaterearthquakesandsoundsmadebyanimalsthemselves.Decibels分贝measuredinwateraredifferentfromthosemeasuredonlanD.A.noiseofonehundredandtwentydecibelsonlandcausespaintohumanears.Inwateradecibellevelofonehundredandninety－fivewouldhavethesameeffect.Somescientistshavesuggestedsettinganoiselimitofonehundredandtwentydecibelsintheoceans.Theyhaveobservedthatnoisesatthatlevelcanfrightenandconfusewhales鲸鱼.AteamofAmericanandCanadianscientistsdiscoveredthatloudernoisescanseriouslyinjuresomeanimals.Theresearchteamfoundthatpowerfulunderwaterexplosionswerecausingwhalesintheareatolosetheirhearing.Thisseriouslyaffectedthewhales'abilitytoexchangeinformationandfindtheirway.SomeofthewhalesevendieD.Theexplosionshadcausedtheirearstobleedandbecomeinfected被感染的.26.Accordingtothepassagewhichofthefollowingisincreasinglydangeroustoseacreatures?A.Thesoundofcars.B.Thesoundofvoices.C.Man-madenoisepollution.D.Thesoundofsteps.27.AccordingtothepassagenaturalsoundsincludeallofthefollowingEXCEPT________.A.soundsmadebyanimalsthemselvesB.oceandrillingC.underwaterearthquakesD.thebreakingoficefields28.Whichofthefollowingisdiscussedinthethirdparagraph?A.Thesamenoiselevelproducesadifferenteffectonlandandintheocean.B.Differentplacesmayhavedifferenttypesofnoises.C.Thedecibelisnotarightunit单位formeasuringunderwaternoisE.D.Differentoceananimalsmayhavedifferentreactionstonoises.29.Whichofthefollowingistrueofwhales?A.Theywon'tbeconfusedbynoises.B.Theyaredeaftonoises.C.Theirabilitytoreproducewillbeloweredbyhigh-levelnoises.D.Theirhearingwillbedamagedbyhigh-levelnoises.30.Accordingtothepassagewhatwillscientistsmostprobablydointhefuture?A.Theywillworkhardtoreduceoceannoisepollution.B.Theywillprotectanimalsfromharmfulnoises.C.Theywilltrytosetalimitof120decibels.D.Theywillstudytheeffectofoceannoisepollution.

A.newlydiscoveredplanetlooksjustrightforlifeasweknowitaccordingtoaninternationalgroupofastronomers.Orbitingastarabout500light-yearsawaytheplanetcalledKepler-186fisaboutthesamesizeasEarth.ItorbitsitsstarattherightdistanceforliquidwateronthesurfacE.Thatisanecessaryconditionforlifeasweknowit.ButitisnotexactlylikeEarthNASAplanetaryscientistElisaQuintanasaiD.It’smoreofanEarth’scousin.It’snotanEarth’stwin.ItsharesthesamecharacteristicsasEarthbuttheirparentstarsareverydifferentsaidQuintanA.Kepler-186forbitsastarthatissmallerandcoolerthanoursun.ButwritinginthejournalSciencetheastronomerssaytheplanetappearstobeacloserrelativethanmostofthehundredsofothersdiscoveredsofar.Somearemassivegas-coveredgiantswiththickcrushingatmospheres.OthersorbittooclosetotheirstarsandaretoohotforlifE.TwoplanetsdiscoveredlastyearareintherightorbitandmightbegoodcandidatesforlifeQuintanasaysbuttheyareabitbiggerthanEarth.ForthefirsttimewecanactuallysaywenowhaveaplanetthatisbothEarth-sizedandorbitsinitsstar’shabitablezoneshesaiD.ItmaybethefirsttimebutitprobablyisnotthelastsaysMassachusettsInstituteofTechnologyastrophysicistSaraSeager.We’vebeenwaitingdecadestounderstandhowcommonhabitableplanetsmightbeandit’slookinglikethey’rereallycommon.AndthisgivesusexcitementandmotivationtotakethenextstepsaidSeager.Thenextstepwouldbetolookforsignsoflifeintheatmospheresofthesedistantworlds.Thatwouldtakeamoresophisticated高端的复杂的spacetelescopE.ButbudgetcutsthreatenthatmissionsaysUniversityofCaliforniaatLosAngelesastrophysicistBenZuckerman.Inprinciplewecoulddothisinthenextfewdecades.Butinpracticebecausethere’snomoneyit’snotgonnahappen.It’snotgonnahappeninmylifetimeforexamplE.LeavingearthboundconcernsbehindNASA’sElisaQuintanabelievesthatwhenthenext-generationspacetelescopeislauncheditwillfindthatwearenotaloneintheuniversE.63.WhatdoestheunderlinedwordThatParagraph1referto?A.TherightdistancE.B.Liquidwater.C.TherightsizE.D.A.star.64.AccordingtoElisaQuintanaKepler-186f______.A.ismoreofanEarth’scousinthananEarth’stwinB.hasalotincommonwithEarthincludingtheirparentstarsC.isalotbiggerthanEarthD.issmallerandcoolerthanoursun65.BenZuckermanandElisaQuintanawouldprobablyagreethat______.A.theycancontinuetheirresearchwithoutworryingaboutmoneyB.itisthelasttimethattheyhavediscoveredsuchaplanetC.asophisticatedspacetelescopeplaysanimportantroleintheirresearchD.Earthistheonlyplanetwherewecanfindsignsoflife66.Whichofthefollowingwouldbethebesttitleforthepassage?A.WherethereiswaterthereislifeB.A.planetexactlylikeEarthfoundC.LifediscoveredonKepler-186fD.NewEarth-sizeplanetfound

Comparingourselveswithothersisn’tarecentphenomenon—it’spartofourculturE.Assoonaswe’reabletoformourownthoughtsandopinionswestartcomparing.Who’staller?Who’sbetteratsports?Whohasmorefriends?Unlikeotherchildishhabitstheurgetomeasureup攀比doesn’teverreallygoaway.Infactitonlyincreaseswhenwebecometeens.AtayoungerageIfoundmyselfwantingtobecoolandwonderingwhyIwasn’tthatcoolsaidajuniorstudentMichaelTorres.SoIbegandoingwhattheydidinordertofitinwithmyownfriends.Wearefloodedwiththemessagethatweshouldcompareourselveswithothers.Magazinesadvertisementsstores—itbecomesallaboutwhatotherpeoplehaveorwhatthey’veachieveD.Socialmediaaddsanotherlayertotheproblem.FacebookTwitterandQQofferaconstantstreamofupdatesaboutthepeoplearoundus.ShegotacceptedtoHarvard?HeboughtthebrandnewNikes?They’redating?IfIgoonFacebookorTwitterandreadabouthowwonderfuleveryoneelseisI’mnotfeelinggoodaboutmyself.It’sgoingtomakemefeelworsesaidMikeRobbinsaseniorstudent.Itrynottoletthingslikethataffectmebutinthemodernworldoftechnologyit’shardnottotakenoticeofwhatothersaredoingandsometimesyouwanttobejustlikethem.Beforeyougetcaughtupinthecomparisongamekeepinmindoneveryimportantdetail:Whenitcomestosocialmediaweoftenpresentonlythethingswewantpeopletosee—thegoodfortuneshappymomentsdeliciousdessertsandbestsmiles.Thedeeperquestionis:Arepeoplereallypostingthingsonsocialmediathataretrueoraretheysimplydoingittopresentsomethingtootherpeople?It’swhatwedoinourculture:LookhowgreatIamLookhowsmartIamLookhowhappyIamandsometimesthat’struebutinalotofcasesit’snot.Whilecomparingourselvestootherscaninspireustogetaheadandworkharderitcanalsodriveuscrazy.Nexttimeyoufindyourselfwonderingifyoumeasureuprememberthis:WhatwehaveisnotameasureofwhowearE.Wealreadyhaveworthasanindividualwhenwe’reborn.Everythingelseiswhatpeoplethinkofus.53.Whendowestarttocompareourselveswithothers?A.Whenwegotojuniorschools.B.WhenwewerebornintotheworlD.C.WhenwehaveFacebookorTweeter.D.Whenwehavethoughtsandopinions.54.Accordingtotheauthorwhywouldpeopleliketopostwonderfulthingsonsocialmedia?A.Toshowofftheirlives.B.Togetadvicefromreaders.C.Tosharehappinesswithothers.D.Tocommunicateusefulinformation.55.Theauthorpresentsthephenomenonofthecomparisonby_________.A.listingalotoffiguresB.givingfactsandexamplesC.providingscientificfindingsD.comparingfamouspersons’opinions56.Fromthepassagewelearnthattheauthor_________comparisonwithothers.A.supportsB.ignoresC.opposesD.respects

Nuclearpower’sdangertohealthsafetyandevenlifeitselfcanbesummedupinoneword:radiation.Nuclearradiationhasacertainmysteryaboutitpartlybecauseitcannotbedetectedbyhumansenses.Itcan’tbeseenorheardortouchedortastedeventhoughitmaybeallaroundus.Thereareotherthingslikethat.Forexampleradiowavesareallaroundusbutwecan’tdetectthemsensethemwithoutaradioreceiver.Similarlywecan’tsenseradioactivitywithoutaradiationdetector.Butunlikecommonradiowavesnuclearradiationisnotharmlesstohumanbeingsandotherlivingthings.Atveryhighlevelsradiationcankillananimalorhumanbeingimmediatelybykillingmassesofcellsinvitalorgans.ButeventhelowestlevelscandoseriousdamagE.ThereisnolevelsofradiationthatiscompletelysafE.Iftheradiationdoesnothitanythingimportantthedamagemaynotbeserious.Thisisthecasewhenonlyafewcellsarehitandiftheyarekilledimmediately.Yourbodywillreplacethedeadcellswithhealthyones.ButifthefewcellsareonlydamagedandiftheyreproducethemselvesyoumaybeintroublE.Theycangrowintocancer.Sometimesthisdoesnotshowupformanyyears.Thisisanotherreasonforsomeofthemysteryaboutnuclearradiation.SeriousdamagecanbedonewithoutthevictimbeingawareatthetimethatdamagehasoccurreD.A.personcanbeirradiated辐射andfeelfinethendieforcancerfivetenortwentyyearslaterasaresult.Orachildcanbebornweakasaresultofradiationabsorbedbyitsgrandparents.Radiationcanhurtus.Wemustknowthetruth.56.Whatisthemostdangerousfactorofnuclearpower?A.RadiationB.QuantityC.AmountD.Place57.Whichofthefollowingstatementsistrue?A.Nuclearradiationcandoharmtohumanbeings.B.Nuclearradiationcannotdoharmtohumanbeings.C.Nuclearradiationcanbedetectedbyhumansenses.D.Nuclearradiationisjustlikecommonradiowaves.58.Howcannuclearradiationkillananimal?A.Bydamagingitsheart.B.Bykillingafewcells.C.Bykillingmanycellsinimportantorgans.D.Byhittinganyplaceinitsbody.59.Whydoesnuclearradiationhaveacertainmystery?A.Becausehumanbeingslearnitsharmfulness.B.Becauseitcandoharmtoapersonwhilethevictimisn'tawarethedamagehasoccurreD.C.Becausenuclearradiationcankillapersonveryeasily.D.Becausehumanbeingshavenoeffectivemachineinordertodetectnuclearradiation.60.Ifahumanbeingishitbynuclearradiationhemay_______.A.dieofcanceraftermanyyearsB.dieimmediatelyC.haveachildwhomaybebornweakD.alloftheabove

AlongtheriverbanksoftheAmazonandtheOrinocotherelivesabirdthatswimsbeforeitcanflyflieslikeafatchickeneatsgreenleaveshasthestomachofacowandhasclaws爪onitswingswhenyoung.Theybuildtheirhomesabout4.6mabovetheriveranimportantfeatureforthesafetyoftheyoung.Itiscalledthehoatzin.InappearancethebirdsofbothsexeslookverymuchalikewithbrownonthebackandcreamandredontheundersidE.Theheadissmallwithalargesetoffeathersonthetopbrightredeyesandblueskin.Itsnearestrelativesarethecommonbirdscuckoos.Itsmoststriking显著的featurethoughisonlyfoundintheyoung.Babyhoatzinshaveaclawontheleadingedgeofeachwingandanotherattheendofeachwingtip.Usingthesefourclawstogetherwiththebeak喙theycanclimbaboutinthebusheslookingverymuchlikeprimitive原始的birdsmusthavedonE.Whentheyounghoatzinshavelearnedtoflytheylosetheirclaws.DuringthedriermonthsbetweenDecemberandMarchhoatzinsflyabouttheforestingroupsof20to30birdsbutinAprilwhentherainyseasonbeginstheycollecttogetherinsmallerlivingunitsoftwotosevenbirdsforproducingpurposes.56.Whatisthetextmainlyabout?A.Hoatzinsindryandrainyseasons.B.Therelativesandenemiesofhoatzins.C.PrimitivebirdsandhoatzinsoftheAmazon.D.Theappearanceandlivinghabitsofhoatzins.57.Younghoatzinsaredifferentfromtheirparentsinthat_________.A.theylooklikeyoungcuckoosB.theyhaveclawsonthewingsC.theyeatalotlikeacowD.theyliveonriverbanks58.Whatcanweinferaboutprimitivebirdsfromthetext?A.TheyhadclawstohelpthemclimB.B.Theycouldflylongdistances.C.Theyhadfourwingslikehoatzins.D.Theyhadaheadwithlongfeathersonthetop.59.Whydohoatzinscollecttogetherinsmallergroupswhentherainyseasoncomes?A.TofindmorefooD.B.Toprotectthemselvesbetter.C.Tokeepthemselveswarm.D.Toproducetheiryoung.

ChooseDrinksOnahotsummerdayasoftdrinkcanreallytakeawayyourthirst.Athomeatschoolintheparkoratthemovies---youcanfindonealmostanywherE.CarbonatedYoucanseebubbles泡沫inthese!Ofallsoftdrinkssoldabout75percentarecarbonated碳酸的.Butbecarefulcarbonatedsoftdrinkshavelotsofsugarandcaffeine咖啡因.Caffeineisnotverygoodforyouinthesummerbecauseittakeswateroutofyourbody.Andthesugarcanmakeyouoverweightifyoudrinktoomuch.FruitjuiceTherearedifferentkindsofjuicE.Onekindismadeonlyfromfreshfruit.Thiskindoffruitjuicemaynottastesweetenoughforsomepeoplebutitisnutritious有营养的.Anotherkindoffruitjuicetastesgoodbuthaslotsofsugarinit.ManyyoungpeoplebuythiskindbecausetheadvertisementsaregooD.Itisbadforyourteethandbonestodrinklotsofthis.EnergydrinksThesekindsofdrinkshavecaffeineandthingsthatmakepeoplegetexcitedinthem.Theyaresometimescalledpartydrinks.Doctorssaythatifyoudrinktoomuchofthiskindyoumayhaveaheartattack.BottledwaterWehavelotsofdifferentkindsofbottledwatersuchasmineralwaterpurifiedwateranddistilledwater蒸馏水.Theyarecleanandeasytodrink.Butitisbestnottodrinkverycoldwater.ItmaymakeyourstomachfeelbaD.SportsdrinksMostofthesehavefunnynameslikeScream尖叫andG.-Vital激活.Theyhavelotsofvitaminsandmineralsinthem.AfteryouplaysportsyoumaywanttodrinkoneofthesE.ButifyoujustspendyoursummerholidaysittingaroundwatchingTVyouwon’tneedthematall!64.Whichtwotypesofdrinksmaymakeyouoverweight?A.CarbonatedandfruitjuicE.B.Energydrinksandsportsdrinks.C.Carbonatedandenergydrinks.D.Fruitjuiceandbottledwater.65.Whichonemayleadtoyourheartdisease?A.CarbonateD.B.FruitjuicE.C.Energydrinks.D.Sportsdrinks66.Aftersportsyouhavesportsdrinksbecause______.A.theycantakeawayyourthirstB.theycanputbackmineralsyou’velostinsweatC.theyhavefunnynamesthatsoundveryexcitingD.theyhavenosugar67.Thewriterwrotethispassageto______.A.warnustokeepawayfromsoftdrinksB.teachussomeusefulwaysofkeepinghealthyC.tellushowtochooseagoodonefromallkindsofdrinksD.maketheadvertisementsforsoftdrinks

Chang'e3isalunar月球的explorationmissionoperatedbytheChinaNationalSpaceAdministrationCNSAincorporatingaroboticlanderandChina'sfirstlunarrover.ThespacecraftwasnamedafterChang'ethegoddessoftheMoonandisafollow-uptotheChang'e1andChang'e2lunarorbiters.TheroverwasnamedYutufollowinganonlinepollafterthemythologicalrabbitthatlivesontheMoonasapetoftheMoongoddess.Chang'e3achievedlunarorbiton6December2013andlandedon14December2013becomingthefirstprobetosoft-landontheMoonsinceLuna24in1976.InJanuary2004thePeople'sRepublicofChina'slunarorbiterprojectwasformallyestablisheD.ThefirstChineselunarorbiterChang'e1waslaunchedfromXichangSatelliteLaunchCenteron24October2007andenteredlunarorbiton5November.Thespacecraftoperateduntil1March2009whenitwasintentionallyimpactedintothesurfaceoftheMoon.DatagatheredbyChang'e1wereusedtocreateanaccurate3-DmapoftheentirelunarsurfaceassistingsiteselectionfortheChang'e3lander.Chang'e1'ssuccessorChang'e2wasapprovedonOctober2008andwaslaunchedon1October2010toconductresearchfroma100-km-highlunarorbitinpreparationforChang'e3's2013softlanding.Chang'e2thoughsimilarindesigntoChang'e1wasequippedwithimprovedinstrumentsandprovidedhigher-resolutionimageryofthelunarsurfacetoassistintheplanningoftheChang'e3mission.InMarch2012ChinabeganmanufacturingthebodyandpayloadoftheChang'e3landerwhichwillattempttoperformlunarsurfaceandspacestudiesindependentlyofthemission'smobilerover.LikeitsorbitingpredecessorstheChang'e3missionisplannedasaprecursor先驱tofurtherroboticlunarexplorationmissionsincludingChang'e5asamplereturnmissionplannedfor2017.Followingtheseautomatedmissionsamannedlandingmaybeconductedaround2025.Chang'e3willattempttoperformthefirstdirectmeasurementofthestructureanddepthofthelunarsoildowntoadepthof30m98ftandinvestigatethelunarcrust壳structuredowntoseveralhundredmetersdeep.Thedevelopmentofthesix-wheeledroverbeganin2002andwascompletedinMay2010.Ithasatotalmassofapproximately120kgwithapayloadcapacityofapproximately20kg.ItcanperformsimpleanalysisofsoilsamplesandmaytransmitvideoinrealtimE.Itcannavigateinclines斜坡andhasautomaticsensorstopreventitfromcolliding碰撞withotherobjects.Theroverwassuccessfullydeployedfromthelanderanditmadecontactwiththelunarsurfaceon14December.Aftertakingpicturesofeachotherthelanderandroverwillstarttheirrespectivesciencemissions.Theroverisdesignedtoexploreanareaof3squarekilometresduringits3-monthmissionwithamaximumtravellingdistanceof10km.Title:Chang’e3__71__ItisalunarexplorationmissionoperatedbyCNSAincorporatingaroboticlanderandChina'sfirstlunarrover.NameSourceItwasnamedafterthegoddessoftheMoon__72__upthenamesofChang'e1andChang'e2.TheHistoryofChina’sLunarExplorationProgramTheprogramInJanuary2004itwasformallyestablisheD.Chang'e1On24October2007itwaslaunchedandenteredlunarorbiton5November.On1March2009itwasimpactedintothesurfaceoftheMoononpurposE.Tohelpselectaproper__73__forChang’e3landerdataabouttheentirelunarsurfaceweregathereD.Chang’e2OnOctober2008itwasapprovedandlaunched__74__yearslater.ItsmissionwastoconductresearchforChang’e3softlanding.Although__75__designeditwasbetterequippedthanChang’e1.Chang’e3StartedinMarch2012itachievedlunarorbiton6December2013andlanded8dayslaterbecomingthe__76__probetosoft-landontheMoonsinceLuna24in1976.Theobjectivesaretomeasurethestructureanddepthoflunarsoilandinvestigatethelunarcrusttoagreat__77__.Chang’e5Asamplereturnmissionplannedfor2017.Around2025AmannedlandingmaybeconducteD.InformationabouttheroverlItwasbeganin2002andcompletedin2010__78__about120kgwithapayloadcapacityof20kgorso.lIthasmany__79__fromanalyzingsoilsamplestoprotectingitself.lAfterthefirst__80__withthemoonon14Decemberitwillstayonthemoonfor3monthsexploringanareaof3squarekmandtravellingamaximumdistanceof10km.

Averticalfarmisaconceptfarmwhichisplantedonlevelsorfloors.A.skyscrapertypebuildingcanhouseaverticalfarm.Sincethegardenisbuiltupwardsratherthanoutwardsitrequiresmuchlessspacethanaconventionalfarm.Theworldisquicklyrunningoutofroomforconventionalfarming.Verticalfarmscouldbeakeytothissituation.An18storyverticalfarmcouldfeedasmanyas50000peopleallinanareawhichisthesizeoftheaveragecityblock.Verticalfarmsinthecitycouldcutdownontransportationcostsaswell.Thinkabouttheamountoffuelittakestotransportfoodfromfarmlandtocity.Theresourcessavedwouldbesurprising.BesidessavingtraveltimefoodwouldbedeliveredinfresherconditionandwithlessdamagE.Thereisagrowingconcernabouttheuseofpesticidesinagriculturetoday.Buttheverticalfarmwouldbeagreenhousetypeenvironmentavoidingtheneedforalargenumberofpesticides.Verticalfarmscanbebuiltinacontainedspacethereforetheyareanexcellentsolutionforlivingwellinanenvironmentfardifferentfromourown.Hydroponics水耕法couldbeabigpartofverticalgardening.ThiswouldreducetheamountofsoilneededtogrowfooD.Ofcoursenotallfooddoeswellwiththistypeofplantingbuttherearemanycropsthatactuallyseemtodobetter.Insomeclimatesalackofsunlightcreatesashortgrowingseason.ThesolarpoweroptionmaynotworkaswellherE.Theadditionofgrowlightswouldmakeitpossibletogrowcropsinverticalgardensintheseareas.InotherwordswecouldgrowcropsinareaswherewenevercouldbeforE.VerticalfarmsmayjustbeaconceptfornowbuttheyareaconceptthatwillsolvemanyofourproblemsinthefuturE.75.Accordingtothepassageaverticalfarm______.A.ismainlybuiltoutwardsB.isonlyanenvironmentalfriendlyfarmC.isplantedonlevelsupwardsD.isdependentonsolarpower76.Thesecondparagraphismainlyabout______.A.themeaningofaverticalfarmB.thefutureofaverticalfarmC.thecostofaverticalfarmD.thebenefitofaverticalfarm77.Comparedtotheconventionalfarmtheverticalfarmcan______.A.helptoprotectthelimitedgardensB.reducetheharmfuleffectofpesticidesC.dependfarlessonsunlightD.greatlyincreasetheuseofsoil78.Itcanbelearnedfromthepassagethatverticalfarms______.A.havebeenputintouseB.needlessroomthanconventionalfarmsC.onlyusehydroponicstogrowfoodD.mayincreasethetransportationcosts

Itwasoncethoughtthatairpollutionaffectedonlytheareaimmediatelyaroundlargecitieswithfactoriesand/orheavyautomobiletraffiC.TodayweknowthatalthoughthesearetheareaswiththeworstairpollutiontheproblemisliterallyworldwidE.OnseveraloccasionsoverthepastdecadeaheavycloudofairpollutionhascoveredtheentireeasternhalfoftheUnitedStatesandledtohealthwarningseveninruralareasawayfromanymajorconcentrationofmanufacturingandautomobiletraffiC.Infacttheveryclimateoftheentireearthmaybeaffectedbyairpollution.Somescientistsfeelthattheincreasingconcentrationofcarbondioxideintheairresultingfromtheburningoffossilfuelscoalandoiliscreatingagreenhouseeffect-holdinginheatreflectedfromtheearthandraisingtheworld'saveragetemperaturE.Ifthisviewiscorrectandtheworld'stemperatureisraisedonlyafewdegreesmuchofthepolaricecapwillmeltandcitiessuchasNewYorkBostonMiamiandNewOrleanswillbeunderwater.Anotherviewlesswidelyheldisthatincreasingparticulatematterintheatmosphereisblockingsunlightandloweringtheearth'stemperature-aresultthatwouldbeequallydisastrous.A.dropofjustafewdegreescouldcreatesomethingclosetonewiceageandwouldmakeagriculturedifficultorimpossibleinmanyofourtopfarmingareas.Atpresentwedonotknowforsurethateitheroftheseconditionswillhappenthoughonerecentgovernmentreportpreparedbyexpertsinthefieldconcludedthatthegreenhouseeffectisverylikely.Perhapsifweareveryluckythetwotendencieswilloffseteachotherandtheworld'stemperaturewillstayaboutthesameasitisnow.29.Aspointedoutatthebeginningofthepassagepeopleusedtothinkthatairpollution_____.A.causedwidespreaddamageinthecountrysideB.affectedtheentireeasternhalfoftheUnitedStatesC.haddamagingeffectsonhealthD.existedmerelyinurbanandindustrialareas30.Asfarasthegreenhouseeffectisconcernedtheauthor_____.A.sharesthesameviewwiththescientistsB.isuncertainofitsoccurrenceC.rejectsitasbeingungroundedD.thinksthatitwilldestroytheworldsoon31.Itcanbeinferredfromthepassagethat_____.A.raisingtheworld'stemperatureonlyafewdegreeswouldn’tdomuchharmtolifeonearthB.loweringtheworld'stemperaturemerelyafewdegreeswouldleadmanymajorfarmingareastodisasterC.almostnotemperaturevariationshaveoccurredoverthepastdecadeD.theworld'stemperaturewillremainconstantintheyearstocome32.Thispassageisprimarilyconcernedwith_____.A.thegreenhouseeffectB.theburningoffossilfuelsC.thepotentialeffectofairpollutionD.thelikelihoodofanewiceage

Eversincetheywerefirstputonthemarketintheearly1990sgeneticallymodifiedGM转基因foodshavebeenincreasinglydevelopedandmarketedinmanycountriesinthewordmainlyonthebasisoftheirpromisetoendtheworldwidefoodcrisis.ButcanGMtechnologysolveworldhungerproblems?Evenifitwouldisitthebestsolution?DespitewhatitpromisesGMtechnologyactuallyhasnotincreasedtheproductionpotentialofanycorp.InfactstudiesshowthatthemostcrownGMcornGMsoybeanshassufferedreducedproductivity.ForinstanceareportthatanalyzednearlytwodecadesofresearchonmajorGMfoodcropsshowsthatGMengineeringhasfailedtosignificantlyincreaseUScropproduction.SomethingelsehoweverhasbeenontheriseWhileGMseedsareexpensiveGMcompaniestellfarmersthattheywillmakegoodprofitsbysavingmoneyonpesticides杀虫剂.OnthecontraryUSgovernmentdatashowthatGMcropsintheUShaveproducedanoverallincreaseinpesticideusecomparedtotraditionalcrops.Thepromisewasthatyoucoulduselesschemicalsandboostproduction.ButnetheristruE.saidBillChristisonPresidentoftheUSNationalFarmCoalition.AtthesametimetheauthorsofthebookWorldHunger:TwelveMythsarguethatthereactuallyismorethanenoughfoodintheworldandthatthehungercrisisisnotcausedbyproductionbutbyproblemsinfooddistributionandpolitics.Theseindeeddeserveoureffortsandmoney.Meanwhiletheriseinfoodpricesresultsfromtheincreaseduseofcropsforfuelratherthanfoodaccordingtoa2008WorldBankreport.AsamatteroffactscientistsseebetterwaystofeedtheworlD.AnotherWorldBankreportconcludedthatGMcropshavelittletooffertothechallengesofworldwidepovertyandhungerbecausebetterwaysoutareavailableamongwhichgreenfarmingissupposedtobethefirstchoicE.49.Theauthordevelopsthesecondparagraphmainly.A.byclassificationB.bycomparisonC.byexampleD.byprocess50.Whatdoestheunderlinedwordboostinthethirdparagraphprobablymean?A.Control.B.EvaluateC.Obtain.D.IncreasE.51.GMcompaniespromisefarmersthattheywillbenefitfrom_____________.A.practicinggreenfarmingB.useoflesschemicalsC.fairdistributionoftheircropsD.usingmorecropsforfuel52.WhichofthefollowingbestdescribestheattitudeoftheauthortowardsGMtechnology?A.OptimisticB.DefensiveC.DisapprovingD.Casual

Whendidyouseeapolarbear?Onatriptoazooperhaps?IfyouhadattendedawinteractivityinNewYorkafewyearsagoyouwouldhaveseenawholepolarbearcluB.ThesePolarBearsarepeoplewhomeetfrequentlyinthewintertoswiminfreezingcoldwater.Thatdaytheairtemperaturewas3degrees.Andthewatertemperaturewasalittlehigher.ThemembersofthePolarBearClubatConeyIslandNewYorkareusuallyabouttheageof60.Membersmustsatisfytworequirements.Firsttheymustgetalongwellwitheveryoneelseinthegroup;thisisveryimportantbecausetherearesomanydifferentkindsofpeopleinthecluB.PolarBearsmustalsoagreetoswimoutdoorsatleasttwiceamonthfromNovemberthroughFebruary.Doctorsdon’tagreeaboutthemedicaleffectsofcold-waterswimming.Someareworriedaboutthedangersofaconditioninwhichthebody’stemperaturedropssoslowthatfinallytheheartstops.Otherdoctorshoweverpointoutthatthereismoredangerofaheartattackduringsummerswimmingbecausethedifferencebetweentheairtemperatureandthewatertempreatureismuchgreaterinsummerthaninwinter.ThePolarBearsthemselvesaresatisfiedwiththebenefitsofcold-waterswimming.Theysaythattheirfavoriteformofexerciseisverygoodforthecirculatorysystem循环系统becauseitforcesthebloodtomovefasttokeepthebodywarm.Cold-waterswimmersusuallyturnbrightredafterafewminutesinthewater.A.personwhoturnsblueprobablyhasaverypoorcirculatorysystemandcouldnottrycold-waterswimming.Themainbenefitsofcold-waterswimmingareprobablymental.ThePolarBearslovetoswimalltheyearround;theyfinditfunandrelaxing.Asone70-year-oldwomansaysWhenIgointothewaterIpourmytroublesintotheoceanandletthemfloataway.1.Doctors_________.A.havedifferentideasaboutthemedicaleffectsofcold-waterswimmingB.believeswimmingishelpfulbothinsummerandinwinterC.enouragepeopletotakepartincold-waterswimmingD.pointoutthepossibledangerofbloodillnessduringcold-waterswimming2.Accordingtothepassagesomedoctorsbelieveitistruethat_______.A.PolarbearsarebearsswimminginfreezingwaterB.cold-waterswimmingcanmakethebodytemperaturedangerouslyhighC.youarehealthyifcold-waterswimmingturnsyourskincolorblueD.cold-waterswimmingcausesmoreheartattackinsummerthaninwinter3.ThePolarBearsliketoswimyear-roundfor_______.A.itisaneasywaytokeepthebodywarminwinterB.theycanstayyoungC.theyfinditenjoyableandinterestingD.theymightmeetfewertroublesinlife4.WhichofthefollowingisTRUEaccordingtothetext?A.ThePolarBearisaclubinwhichpeopleswimtoprotectpolarbears.B.Theclubmembersareallover60yearsolD.C.ThereisnowomaninthecluB.D.NoneoftheabovE.5.Thispassageismainlyabout_______.A.therequirementsofthePolarBearClubB.agroupofcold-water-swimmingloversC.thePolarBears’lifeinNewYorkD.doctors’ideasaboutcold-waterswimming

Zoosdivideopinion:therearethosewhothinkitiscruel残忍的tokeepanimalslockedupwhileothersbelievezoosareimportantforthesurvivalofendangeredspecies.Tothinkthatzoosimprisonanimalsistomisunderstandwhatzoosareabout.Withoutzoosmanyofthecreaturesweloveandadmirewouldnolongerexist.Everysingledayoveronehundredanimalspeciesvanish.Scientistspredictthatasearlyas2050onequarteroftheEarth’sspecieswillbecomeextinct绝种的.SomeanimalsareindangerbecausetheyarehunteD.Worriedlythepopulationoftigershasalreadyfallenbyninety-fivepercent.OtherspeciesareindangerbecauseofalackoffooD.Forexampletherearefewerthan1300giantpandasleftinthewilD.Zooshavespecialbreedingprogramstohelpthoseanimalsindanger.Thesebreedingprogramsareprovingverysuccessful.AsIreneShapirofromZooandWildlifeSupportsaysthePuertoRicanParrothasgrowninnumbersfromjustthirteentoabouteighty-fiveandtheGoldenLionTamarinMonkeywhichhasalmostdiedouttwentyyearsagohasbeenreintroducedbackintothewilD.Unfortunatelynoteveryoneunderstandsthisimportantrolezoosplay.ForexampleBrianFeatherstonefromtheAnti-ZooForumsaysIcan’tbelievewetakeanimalsfromthewildandputthemincagesfortheentertainmentofthepublic!WeshouldviewthemonfilmorTVintheirnaturalenvironment.Howeverthismissesthepoint.A.zoodoesmorethandisplayanimalstothepubliC.Itensurestheirsurvival.WithoutzoosyouwouldnotbeabletoseemanyoftheseanimalsonTVoranywhereelse!55.Accordingtothepassagesomepeopledonotagreewithzoosbecausethey________.A.aretooexpensivetorunB.putanimalsindangerC.donotprovideenoughfoodD.keepanimalslockedup56.Accordingtothewriterthemostimportantfunctionofthezooisto_________.A.makealotofmoneyB.entertainvisitorsC.ensureanimals’survivalD.educatethepublic

TheFather-DaughterDuelshiftedintohighgear档位whenyoutaughtmetodrivetheoldDodgeandIdecidedIwoulddrivethe'54Chevywhetheryoulikeditornot.ThepoliceofficerwhosentmehomeafteryoureportedtheChevystolendidn'thavemuchtoleranceforastub­born16yearoldwhileyouweresotolerantaboutitDadandIthinkthatwasprobablywhatmadeittheworstnightofmylifE.OurrelationshipgreatlyimprovedwhenImarriedamanyoulikedandthingsreallyturnedaroundwhenwebeganmakingbabiesrightandleft.SomewherealongthelinethegenerationgapdisappeareD.IsupposeIsawusandourrelationshipasagingtogetherratherlikeafinewinE.Butthestrangestthinghappenedlastweek.IwasatastopsignandIwatchedasyouturnedthecornerinyourcar.Itdidn'timmediatelyoccurtomethatitwasyoubecausethemandrivinglookedsoelderlyandfragilebehindthewheelofthathugecar.ItwasratherlikeaslapinthefacedeliveredfromoutofnowherE.PerhapsIsawyourageforthefirsttimethatday.IguesswhatI'mtryingtosayDadiswhateverysonanddaughterwantstosaytotheirDadtoday.HonoringafatheronFather'sDayisaboutrespectandsharingandacceptanceandtoleranceandgivingandtaking.It'saboutlovingsomeonemorethanwordscansayandit'swishingthatneverhadtoenD.IloveyouDaD.LoveJenny【小题1】HowdidJennyprobablyfeelonthenightshewassenthomebythepolice?A.DisappointeD.B.Nervous.C.Guilty.D.FrighteneD.【小题2】WecanlearnfromthepassagethatJennyandherfather_________.A.keptintouchbywritingeachotherB.areseparatedduetothegenerationgapC.havebeengettingalongverywellD.hadahardtimeunderstandingeachother【小题3】WhydidJennyfeelstrangewhenshesawherfatherlastweek?.A.Sheseldomsawhimdrivingthathugecar.B.Shehadneverrealizedhisbeingoldandweak.C.Shedidn'texpecttomeetwithhimtherE.D.ShehadneverseenhimdrivingsoslowlybeforE.【小题4】Jennywrotehisfatherthisletterto_________A.tellhimabouttheirconflictsB.saysorryforherbeingstubbornC.expresshergratitudetohimD.remindhimoftheearlyincident

Thecomputerkeyboardhelpedkillshorthand—asystemofrapidhandwritingandnowit’sthreateningtofinishoffhandwritingasawholE.WhenhandwrittenessayswereintroducedontheSATexamsfortheclassof2012just15%ofthemost1.5millionstudentswrotetheiranswersincursive草写字母.Therest?Blockletters.AndthosecollegehopefulsarejustthefirstedgeofawaveofUSstudentswhonolongergetmuchhandwritinginstructionsintheprimarygradesfrequently10minutesadayorless.AsaresultmoreandmorestudentsstruggletoreadandwritecursivE.AtKeeneMillElementarySchoolinSpringfieldalltheirpoemsandstoriesaretypeD.ChildreninFairfaxCountyschoolsaretaughtkeyboardingbeginninginkindergarten.Olderstudentswhonevermasteredhandwritingsayitdoesn’taffecttheirgrades.TherearethosewhosaythecultureisatacrossingturningfromthewrittenwordtothetypedonE.Ifhandwritingbecomesalostformofcommunicationdoesitmatter?ItwasatUniversityVirginiathatresearchersrecentlydiscoveredapreviouslyunknownpoembyRobertwritteninhisuniquescript.Handwrittendocumentsaremorevaluabletoresearchershistorianssaybecausetheirauthenticity真实性canbeconfirmeD.Studentsalsofindthemmorefascinating.Thelossofhandwritingalsomaybeacognitive认知的opportunitymisseD.Severalacademicstudieshavefoundthatgoodhandwritingskillsatayoungagecanhelpchildrenexpresstheirthoughtsbetter—alifelongbenefit.Itdoesn’ttakemuchtoteachbetterhandwritingskills.AtsomeschoolsinPrinceGeorge’sCountyelementaryschoolstudentsuseaprogramcalledHandwritingWithoutTearsfor15minutesaday.TheylearnthecorrectformationofmanuscriptlettersthroughsecondgradeandcursivelettersinthirdgradE.Therearealwaysgoingtobesomekidswhostrugglewithhandwritingbecauseoftheirparticularneurological神经系统的writinglearningissuesorpoormotorskills.Educatorsoftenpointtothisfactorinsupportofkeyboarding.36.Whatistheauthorconcernedaboutafter2012Satexams?A.Keyboarding.B.ShorthanD.C.Handwriting.D.Blockletters.37.A.poembyRobertmentionedinthepassageisusedto____________.A.provehowvaluablehandwritingisB.explainwhatafamouspoetheisC.showhowuniquehispoemisD.stresshowfascinatingthedocumentsare38.TheexampleofHandwritingWithoutTearshelpstoarguethat_____________.A.theschoolsareresponsibleforthelossofhandwritingB.thelossofhandwritingisacognitiveopportunitymissedC.itdoesn’ttakemuchtoteachbetterhandwritingskillsD.thecultureisturningfromthewrittenwordtothetypedone39.Accordingtotheauthorwhenisaperfecttimetolearnhandwriting?A.Kindergarten.B.Primaryschool.C.Highschool.D.CollegE.40.Whatistheauthor’sattitudetowardsthisdebate?A.Devotion.B.Encouragement.C.Critical.D.ObjectivE.

LONDONReutersLife!----Forgetabouttalkingyourchildrenintoconsideringlifeasadoctororateacherandstarttrainingthemforthetalentshow.AsurveyofBritishparentsshowedtheaspirations志向oftheirchildrenaregreatlydifferentfromwhattheydreamedaboutwhenconsideringwhotheywantedtobewhentheygrewup.Althoughastronaut宇航员stillremainsfairlyhighonthelistofcareers事业kidsdreamaboutthesedaysotherslikedoctorandteacherhavebeentakentheplaceofbythedesire欲望towingoodnameandmoneyasasportingheropopstaroractor.Theparentsofchildrenaged5to11saidthechoiceoflawyerhaddroppedbyonlyoneplaceonatop10listtosixthwhileteacherhaddroppedtoninthfromtopinthelast25ormoreyears.ThesurveyforBritishTVchannelWatchfoundagreatdifferencebetweenthegenders性别oftoday’syoungpeoplewhencomparedwiththeirparents’dreams25yearsormoreago.Playingprofessionalfootballbeinganastronautandjoiningthefirefightingservicetoppedtheboys’choiceswhilegirlsaremorelikelytobedreamingoftakingtothestageasapopstaroractressorjoiningthemedicalprofession.Whenaskedwhattheywouldliketheirchildrentodoforalivingtoday’sparentsstillliketheacademic学术的professions职业withlawandmedicinescoringhighlywhilebeingabosscamethirD.Parentsalsopraisedjobhappinessabovewealth财富whenitcomestotheirhopesfortheirchildren.Nearly70percentoftheparentssurveyedthoughtthattheyfailedtofollowtheirdreamswhenitcametotheircareerwith37percentthinkingitwascausedbyalackofaspirationandnothavingthenecessaryconditions.36.Fromthepassageweknowthatmostparentsstillhopethatinthefuturetheirchildrencantakeup______.A.jobssuchasmusicianssingersanddancersB.jobsrelatedtoacademicprofessionslikelawyersanddoctorsC.jobsinwhichtheywillnotbeendangeredD.jobswhichwillbewellpaidonly37.Thefirstparagraphistoadviseparentsto______.A.changetheirchildren’sdreamsB.correcttheirchildren’sdreamsC.followtheirchildren’sdreamsD.forgettheirchildren’sdreams38.AccordingtothesurveyforBritishTVchannelWatchwhichofthefollowingistheboys’bestcareerchoice?A.A.popstarB.AnactorC.A.doctorD.A.firefighter39.Whatcanbelearntfromthepassage?A.Parents’hopefortheirchildren’scareerdidnotchangetoomuch.B.Parentspaymuchattentiontotheincomeoftheirchildren.C.Lessthanhalfoftheparentswhoweresurveyeddidn’tfollowtheirdreams.D.Mostparentsdidn’thavethenecessaryconditionstorealizetheirdreams.40.Whatisthemainideaofthepassage?A.Manyreasonscausethechangeofchildren’sdreams.B.Parents’dreamsaredifferentfromchildren’s.C.Parentsarechangingtheirowndreams.D.Children’sdreamsarealwayschanging.Unit3Inventorsandinventions

BodyandFoodYourbodywhichhascloserelationswiththefoodyoueatisthemostimportantthingyouownsoitneedspropertreatmentandpropernourishment营养.TheoldsayingAnappleadaykeepsthedoctorawayisnotassillyassomepeoplethink.ThebodyneedsfruitandvegetablesbecausetheycontainvitaminC.Manypeopletakeextravitaminsinpillformbelievingthatthesewillmakethemhealthy.ButagooddietismadeupofnourishingfoodandthisgivesallthevitaminsyouneeD.Thebodydoesn’tneedoruseextravitaminssowhywastemoneyonthem?Inthemodernwesternworldmanypeoplearetoobusytobotherabouteatingproperly.Theythrowanythingintotheirstomachseatinghurriedlyandcarelessly.Thelistofillnessescausedormadeworsebybadeatinghabitsisfrightening68.Yourbodyhascloserelationswiththefoodyoueat.Itreallymeansthat______.A.allkindsoffoodyoueatcanbemadeintoyourbodyB.yourbodyismadeupofthefoodyoueatC.whatyoueathasgreateffectonyourhealthD.themoreyoueatthefitteryouwillfeel69.Theoldsayingreferredtointhepassagetellsusthat______.A.eatingapplesregularlydoeslotsofgoodtoourhealthB.theappleisthebestamongallkindsoffruitsC.applescantaketheplaceofdoctorsD.anappleisasurecureforillness70.Inthesecondparagraphthewritertriestoletusknow______.A.ourbodiesneedfoodorwecan’tliveB.ofteneatingapplesisagoodhabitC.takingextravitaminpillsiscompletelyuselessD.agooddietisofgreatimportanceforourhealth71.Inthemodernwesterncountries______.A.peopledon’twanttopaymoreattentiontotheireatingB.lotsofpeople’sillnessesarecausedormadeworsebybadeatinghabitsC.peoplethroweverythingintotheirstomachswithoutchewingD.peopleareonlytoobusytocookmealsforthemselves72.Fromthepassagewecandrawaconclusionthatifwewanttokeephealthyweshould______.A.onlyeatanappleadayB.eatproperlyC.takeasmanyvitaminpillsaspossibleD.throwsomethingintoourstomachsslowlyandcarefully

TheAtlanticOceanisoneoftheoceansthatseparatetheOldWorldfromtheNew.ForcenturiesitkepttheAmericasfrombeingdiscoveredbytheEuropeans.ManywrongideasabouttheAtlanticmadeearlysailorsunwillingtosailfaroutintoit.Onewasthatitreachedouttotheedgeoftheworld.Sailorsfearedthattheymightsailofftheearth.Anotherideawasthatattheequatortheoceanwouldbeboilinghot.ActuallytheAtlanticisonlyhalfasbigasthePacificbutitisstillverylargE.Itismorethan4000miles6000kmwidewhereColumbuscrossedit.Evenatthenarrowestitisabout2000miles3200kmwidE.Twothingsmakeitratherunusual.Forsolargeanoceanithasveryfewislandsanditistheworld’ssaltiestocean.ThereismorewaterintheAtlanticthanyoucaneverimaginE.Butsupposenomorerainfellandnomoreriversflewintoititwouldtaketheoceanabout4000yearstodryup.Ontheaverage平均thewaterisalittlemorethan2miles3.2kmdeepbutinplacesitismuchdeeperwiththedeepestspotnearPuertoRicomeasuring30.246feet----almost6miles9.6km.OneofthelongestmountainrangesoftheworldwhichrunsnorthandsouthdownthemiddleoftheoceanrisesfromtheflooroftheAtlantiC.Thetopsofsomeofthemountainsreachupabovetheseaandmakeislands.SeveralhundredmileseastwardfromFloridathereisapartoftheoceancalledtheSargassoSeA.HerethewaterisquietbecauseoflittlewinD.Inthedaysofsailingvessels船thecrewwereafraidtheywouldbepreventedfromgoingforwardherE.SometimestheywereindeeD.TodaytheAtlanticisagreathighway.HoweveritisnotalwaysasmoothandsafeonE.Stormssweepacrossitandpileupgreatwaves.Icebergs冰山floatdownfromtheFarNorthacrossthepathsofships.Wenowhavesuchfastwaysoftravelingthatthisbigoceanseemstohavegrownsmaller.Columbussailedforovertwomonthstocrossit.A.fastmodernsteamshipcanmakeitinlessthanfourdays.AirplanesflyfromNewYorktoLondoninonlyeighthoursandfromSouthAmericatoAfricainfour!66.WhatdoestheOldWorldinthefirstparagraphreferto?A.AfricA.B.EuropE.C.AsiA.D.AllofthethreeabovE.67.WhatcausedpeopletobeunwillingtoexploretheAtlantic?A.Therewerenoshipsbigenoughtogetacrosstheocean.B.Sailorswereafraidofbeinglostintheocean.C.TheAtlanticwasveryunusualbecauseitwasthesaltiestocean.D.Manyincorrectideasmadepeoplethinktheoceanwasfullofdanger.68.Whatisthetopicofthefifthparagraph?A.Howlongthemountainis?B.Howtomeasurethewater?C.Howmuchwatertheoceanholds?D.Howrainaffectstheoceanwater?69.Wecanlearnfromthetextthat_________.A.theAtlanticisthelargestoceanonearth.B.oneofthelongestmountainrangesliesintheAtlantiC.C.theAtlantichasalotofislandsinit.D.sailingontheAtlanticOceanisalwaysquietsmoothandsafE.70.Whatdoestheunderlinedwordhighwayimply?A.HighroaD.B.Broadway.C.FastroaD.D.Mainwaterway.

Whilethepresenceofratsinhomesmaycauseanxietyandannoyancetheyrarelyresultindrivingouttheresidents.Butthatisexactlywhathappenedtotheinhabitantsofthe10­square­mileHawadaxIslandoffthecoastofAlaskaalmost230yearsago.Nowthankstoafive­yeareffortbyscientiststheterriblysilentRatIslandasithadbeencalledformanyyearshasbeenreturnedtoitsrightfulowners——birds!HawadaxIslandispartofachainofvolcanicislandsintheBeringSeacalledtheAleutianIslands.Theratsthatarrivedtherein1780whenaJapaneseshipcarryingthembrokedownnearbycompletelydestroyedthenativepopulationbecausetheenvironmentoftheislandwasnotbuilttodefenditsanimalsfromthesepredators.Thereisn'tanytreeontheIslandwhichmeantthatthebirdswereaccustomedtobuildingtheirnestslowinthegroundgivingtherodents啮齿动物easyaccesstobotheggsandbabychicks.Asyearspassedthebirdsthathadcalledtheislandhomeforthousandsofyearsbecameendangeredandeventuallydisappearedcompletely.In2007theU..S.FWSFishandWildlifeServicestartedaseriousplantoridtheislandoftheratsandtrybringingbackthebeautifulbirdsthathadoncecalledithomE.Giventhattherewereanestimated10000rodentsinhabitingRatIslandandthefactthattheyre­producerapidlyitwasnotaneasytask.Butby2009theIslandwasofficiallydeclaredratfree!Thenslowlybutsurelythebirdsbegantoreturn.Unfortunatelysomeofthepioneerswereunintentionallykilledfromtheleavingsoftheraticideapoisonthathadbeenusedtowipeouttherodents.ButnowitseemsthingsarebecomingmorestableandtheIslandisstartingtoincreasinglylooklikeitsformerself.BeforethetransformationHawadaxalsoknownasRatIslandwasasilentandghostlyplacewithbirdbonessnailremainsandrockscoveredinratfeces粪便.Todaybirds'singingandflyinginandoutisacommonsight.Tuftedpuffinsandsongsparrowswhichhadlongdisappearedaregraduallymakingtheirwayback.Scientistshavealsobeenobservinganincreaseingroundnestingandshorebirds.ThoughtheIslandisstillnotbacktoitsfullglorythesignsareencouragingandthingscanonlygetbetterastimepasses.32.TheunderlinedwordthatinParA.1probablyrefersto________.A.thepresenceofratsB.birds'beingdrivenoutC.birds'returningtotheislandD.residents'worryingaboutrats33.BirdsonHawadaxIslandbecameaneasytargetbecause________.A.thisislandwastreelessB.theynestedrandomlyC.theyreproducedtoorapidlyD.theirchickswereextremelyweak34.FromthepassagewecanknowtheplanofUSFWS______.A.hashelpedtheislandfullyrecoveredB.costlittlebutbenefitedgreatlyC.involvedpoisoningtheratsonalargescaleD.accomplisheditsgoalafterexactly24months35.Whichwouldbethebesttitleforthepassage?A.FWSHelpGetRareBirdsBacktoAlaskaIslandB.JapaneseChangedaBirdParadiseintoRatIslandC.FWSPlantoDriveRatsOutOfRatIslandD.Alaska'sRatIslandReturnstoaBirdParadise

MicefedjunkfoodforninemonthsshowedsignsofdevelopingtheabnormalbraintanglesstronglyassociatedwithAlzheimer'sdiseaseaSwedishresearchersaidonFriday.OnexaminingthebrainsofthesemicewefoundachemicalchangenotunlikethatfoundintheAlzheimerbrainSusanneAkterinaresearcherattheKarolinskaInstitutet'sAlzheimer'sDiseaseResearchCenterwholedthestudysaidinastatement.Wenowsuspectthatahighintakeoffatandcholesterol胆固醇incombinationwithgeneticfactors...canadverselyaffectseveralbrainsubstanceswhichcanbeacontributoryfactorinthedevelopmentofAlzheimer’s.Alzheimer’sdiseaseisincurableandisthemostcommonformofdementia痴呆amongolderpeoplE.ItaffectstheregionsofthebraininvolvingthoughtmemoryandlanguagE.Whilethemostadvanceddrugshavefocusedonremovingclumpsofβamyloidproteinβ淀粉蛋白thatformsplaquesinthebrainresearchersarealsonowlookingattherapiestoaddressthetoxictanglescausedbyanabnormalbuild-upoftheproteintauT形蛋白.InherresearchAkterinfocusedonagenevariant基因突变calledapoE4foundin15to20percentofpeopleandwhichisaknownriskfactorforAlzheimer’s.Thegeneisinvolvedinthetransportofcholesterol.Shestudiedmicegeneticallyengineeredtoimitatetheeffectofthevariantgeneinhumansandwhichwerefedadietrichinfatsugarandcholesterolforninemonths--mealsrepresentingthenutritionalcontentoffastfooD.Thesemiceshowedchemicalchangesintheirbrainsindicatinganabnormalbuild-upoftheproteintauaswellassignsthatcholesterolinfoodreducedlevelsofanotherproteincalledArcinvolvedinmemorystorageAkterinsaiD.AllinalltheresultsgivesomeindicationofhowAlzheimer'scanbepreventedbutmoreresearchinthisfieldneedstobedonebeforeproperadvicecanbepassedontothegeneralpublicshesaiD.61.WhatdidSusanneAkterinfindinherresearch?A.Signsofdevelopingtheabnormalbraindisorders.B.TheabnormalbraindisordersbecauseofjunkfooD.C.Akterin’sdiseaselinkedwithjunkfooD.D.ThesamechemicalchangeintheAlzheimerbrain.62.WhatisSusanneAkterin’sideaaboutAlzheimer’sdisease?A.Shethinksit’scausedbyfatandcholesterol胆固醇withgeneticfactors.B.Shedoesn’tbelievethatit’scausedbyfatandcholesterol胆固醇withgeneticfactors.C.Shedoubtswhetherit’scausedbyfatandcholesterol胆固醇withgeneticfactors.D.Shebelievesjunkfoodcausesmicetobeabnormal.63.WhichisNOTthesignofdementiaamongolderpeople?A.OftenforgettingthingsB.Oftenrepeatingthesamewords.C.OftenbeingweakD.UnabletounderstandotherpeoplE.64.Whichofthefollowingistrueaccordingtothepassage?A.It’seasytocureAlzheimer’sdiseasE.B.There’snowaytocureAlzheimer’sdiseasE.C.AkterinhasfoundAlzheimer’sdiseasE.D.Akterinremovedβamyloidproteinβ淀粉蛋白.65.WhatdoesAkterin’sexperimenttellus?A.Alzheimer’sdiseasecanbeavoideD.B.Alzheimer’sdiseaseisincurablE.C.Alzheimer’sdiseasecanbecureD.D.Micearethesameashumans.

Forthousandsofyearspeoplehaveseenthingstheydidn’tunderstandinthesky.TheUnitedStatesAirForcefirstusedthewordsUnidentifiedFlyingObjecttodescribethem.TodayeveryoneusesthetermUFO.WhenpeopleseeaUFOitisusuallynomorethanaweatherballoonoranairplanE.ButtheCenterforUFOStudiesgoesontoreceivehundredsofreportseachyear.In1947abusinessmanandpilotKennethArnoldwasflyingnearMountRainierWashingtonwhenhesawnineshinyroundobjectsflyingthroughtheair.Hetoldanewspaperreportertheylookedlikepieplatesskippingoverwater.Thereporterusedthewordsflyingsaucer碟子inhisstoryandtodaythatisthepopularnameforUFOs.TheCenterforUFOStudiesliststhreekindsofcontactswithflyingsaucers.Encounters遭遇ofthefirstkindarereportsofunknownobjectsorlightsinthesky.PeoplehaveEncountersofthesecondkindwhenaUFOleavesburnmarksorothersignsonthegrounD.PeoplereportCloseencountersofthethirdkindwhentheyseealiensinornearaUFO.56.WhousedthetermUFOfirst?A.TheUnitedStatesAirforcE.B.TheCenterforUFOStudies.C.KennethArnolD.D.A.report.57.TheCenterforUFOStudies_____.A.usuallyseesnomorethanaweatherballoonoranairplaneeveryyearB.isabranchoftheUnitedStatesAirForceC.receivehundredsofreportseveryyearD.usedpieplatesskippingoverwatertodescribetheUFOseenbythepeoplefirst58.WhydidthenewspaperreporterusethewordsflyingsaucertodescribetheUFOthatKennethArnoldsaidhesaw?A.BecausetheUFOthatKennethArnoldsawwasflat.B.BecauseKennethArnoldtoldthenewspaperthatwhathehadseenintheskywasrounD.C.BecauseKennethArnolddescribedwhathehasseenlookedlikeaplateflyinginthesky.D.BecausewhatKennethArnoldsawwaspieplatesflyingintheair.

HowtoprotectchildrenWebfansfromunsuitablematerialon-linewhileencouragingthemtousetheInternethaslongbeendiscussedintheU.S.ForsomeparentstheInternetcanseemlikeajunglefilledwithdangerfortheirchildren.Butjunglescontainwondersaswellasdangersandwithgoodguidessomeeducationandafewprecautions预防措施thewildsoftheInternetcanbesafelynavigated航行.Kidshavetobeon-linE.Ifwetellourkidstheycan’thaveaccess机会totheInternetwe’recuttingthemofffromtheirfuturesaidanexpert.Mostkidshavestartedtousesearchengines.ManyofthemaregreatforfindingtonsofinterestingInternetsitesandtheycanalsolocateplaceswhereyoumightnotwantyourkidstogo.Therearesearchenginesdesignedjustforkids.A.certainsoftwarecontainsonlysitesthathavebeenselectedassafE.Themostpopularwaytolimitaccesswouldbetousewhatisknownasacontentscreener过滤器.Butthiscan’tbewhollyreliableandthebestthingparentscandoistotalktotheirkidsandletthemknowwhatisOKornotOKtoseeordoontheInternet.Anotherwayisthatmumordadisnearbywhenthechildissurfing浏览theInternet.Afewothertips●Don’tputthePCinachild’sroombutkeepitinanareawheremumordadcankeepaneyeonthings.ThatalsomakestheInternetmoreofafamilyactivity.●Askyourchildwhatheorshehasbeendoingandaboutanyfriendstheymakeon-linE.●Tellyourchildnottogiveon-linestrangerspersonalinformationespeciallylikeaddressandphonenumber.●Andtellyourchildrennevertotalktoanyonetheymeeton-lineoverthephonesendthemanythingacceptanythingfromthemoragreetomeetwiththemunlessyougoalong.28.Thepassageismainlyaboutthesubjectof_______.A.Americanchildrengoingon-lineB.InternetinAmericaC.appreciatingInternetD.opposingchildren’son-line29.Thebestwaytoprotectchildrenfromimpropermaterialis_______.A.toinstall安装acontentscreeneronthecomputerB.tobuysomesearchenginesforthechildrenC.tobenearbywhentheyaresurfingtheInternetD.totalktothechildrenandpersuadethemtotellrightfromwrong30.Whichofthefollowingisrightaccordingtothepassage?A.SurfingtheInternetisthebestmethodofeducatingchildren.B.Children’snothavingaccesstoInternetmayhaveeffectontheirprogress.C.UsingacontentscreenerismostreliableforkeepingchildrenhavingaccesstoInternet.D.Searchingenginescanhelpchildrentoselectmaterialsfitforthem.31.Accordingtothepassagewecaninferthat_______.A.softwaresfitforchildrenwantprogrammingB.achildwhoison-lineisindangerC.InternetisajunglefullofdangerD.Internetcontainsalotofharmfulsites

FixitonyourownDidyouknowthatabowlofricecouldsaveyouriPodifyoudropitinaswimmingpoolbyaccident?Orthatthecameraonyourphonecouldtellyouwhat’swrongwithyourTVremotecontrol?TheexpertsatGeekSquadgeelsquaD.co.ukhavemadeagadget小机件rescueguidE.Solet’stakealookatsomeoftheirusefuladvicE.♦HowtogetmorejuiceoutofyourphonebatterIfyourbatterygoesdeadbutyouneedtogetanumberorsendonelasttexttrywarmingitup.Thatmaygiveyouatinybitofpower.Takethebatteryfromthephoneandrubitbetweenyourhands.Orwarmitunderyourarmforafewminutes.Thentrytostartthephonebutuseitquickly.♦WhattodoifyourgadgetgetswetFirsttrydryingitoutwithavacuumcleaner真空吸尘器.Ifavacuumcleanerisn’tathandfillapotorbowlwithuncookedriceandputyourwetgadgetinsidE.Thedryuncookedricewillabsorballthewaterandafterafewhoursyoushouldbeabletousethegadget.Don’tforgettoremovethebatteryandSIMcardbeforeyoudryit.♦WhattodoifyourTVremotecontrolstopsworkingIfreplacingthebatteriesdoesn’tworkgetthecamerafunctionuponyourphoneandpointtheremoteatthelens镜头.Whenyoupressabuttonontheremoteifitisworkingtheglassbobble小球atthefrontoftheremotewilllightupwhenyoulookatitonthescreenofyourphonE.Thisisbecausethescreenonaphoneordigitalcamerapicksupinfraredrays红外线eventhoughyoureyesdon’t.Iftheglassbobbledoesn’tlightuptheremoteisbroken.Ifitdoesthereceivingdevice装置isbroken.60.Ifyourcellphonefallsintoasinkyoucan_________.A.warmitupunderyourarmB.removethebatteryafteryoudryitC.putitintotheuncookedriceD.pressitwithbothofyourhands61.WhycanaphonebeusedtoprovetheTVremotecontrolworkswell?Becauseitcan_____.A.improvetheTVremotecontrolB.receiveinfraredrayC.picturetheTVremotecontrolD.reflectinfraredray62.Inwhichsectionofanewspapercanwepossiblyreadthistext?A.LifeB.EntertainmentC.FinanceD.Culture63.Thepurposeofthispassageistogivepeople__________.A.personalopinionsB.professionalguidesC.necessarywarningsD.practicaltips

Insidetheirone-storeymetal-roofedhouseonVancouverIsland’swestcoastJanetSchwartzandherdomesticated驯养的deerBimboarereturningtotheirnormallives.Thelaw—representedbymenandwomendressedinblackuniformsandcarryingguns—isnolongerthreateningtoforciblyseparateSchwartzandBimbofreeingthel0-year-olddeertothefates命运ofthesurroundingrainforestanditshungrywolvesandblackbears.WeloveeachothersaidSchwartzwhoturned70onSaturday.she’llcomeuptomeandshe’llkissmerightonthelips1ikeamankissesawoman’’ForfourdayslastweekSchwartz’lifeturnedasrockyastheroughloggingroadthatconnectedherlifetotheoutsideworlD.Conservationofficershadarrivedwithordersto1ooseBimbo.Schwartzwasto1dshewasn’tallowedtotouchBimboanymoreItseemedsomebodyhadcomplainedsaidEnvironmentMinisterTerryLakeearlierintheweeknotingit’sillegaltokeepwildanimalsaspets.DuringthosetensedayssleeplessnightsweremadeevenmorerestlessbynightmaressaidSchwartz.TherewerenewsstoriesandFacebookpageswhichsupportedSchwartzandbyFridaythegovernmenthadchangeditsminD.Schwartzcouldkeepherpetwiththehelpofaveterinarianandconservationofficers.ItmakesmefeelgoodsaidSchwartzoftheannouncement.Sheismylife.andI’vehadhersincethedayshe’sbeenborn.Therelationshipbeganwhenafriendfoundtheorphanedfawn幼鹿alonganearbyloggingroadmorethanakilometerawayfromhercurrenthomesaidSchwartz.ThefriendbroughtthefawnoverbecausesheknewSchwartzhadraisedadeerbeforE.SchwartznamedthefawnBimbobasedonaGeneAutrysongthatwasplayinginsideherhomeatthetimeandbeganfeedingtheanimalgoat’smilk.DaysturnedintomonthsandyearsandnowBimbo’sapartofthefamily.66.AccordingtoParagraph1JanetSchwartz’slifeisreturningtonormalbecause______.A.noonedisturbsherlifeagainB.shecancontinuetokeepthedeerC.shehasmarriedagainD.Bimbohasreturnedtotheforest67.Whydidn’tSchwartzwanttoloosethedeer?A.ItwastheonlycompanioninherhouseB.Shewantedtostudythelifestyleofthedeer.C.Thedeerhadbecomepartofherlife.D.Shehadaveterinariantohelpher.68.ConservationofficersorderedJanettolooseBimbobecause.A.thedeerwasnotproperlytakencareofB.thedeerbroughtharmtotheneighborhoodC.itwasagainstthelawtokeepthedeerasapetD.thedeermadetoomuchnoise69.Whatmadethegovernmentchangeitsmind?A.Schwartz’sloveforthedeer.B.ThethreattothedeerinthewilD.C.Thechangeofthelaw.D.TheinfluencefromthepressandtheWeB.70.Whatcanweconcludefromthetext?A.BimbowillcontinuetostaywithSchwartz.B.BimbowillbeloosedtothewilD.C.A.professionalworkerwilltakeoverBimbo.D.BimbowillstayinanearbyZoo.

AnexperimentwascarriedoutatBritishschoolintotheperformanceofnewpupils.Atthestartoftheyearthepupilswereeachgivenaratingrangingfromexcellentprospecttounlikelytodowell.TheseweretotallyuntrueratingsanddidnotreflecthowwellthepupilshadpreviouslyperformeD.Howevertheseratingsweregiventotheteachers.Attheendoftheyeartheexperimenterscomparedthepupils’performancewiththeratings.Despitetheirrealabilitiestherewasanastonishinglyhighconnectionbetweenperformanceandratings.Itseemsthatpeopleperformaswellasweexpectthemto.TheSelf-fulfillingEffectisalsoknownasthePygmalionEffect.ThiscomesfromanoldGreekstory.ThestorywasalsothebasisofGeorgeBernardShaw’splayPygmalionlaterturnedintothemusicalMyFairLady.InShaw’splayProfessorHenryHigginsclaimshecanturnaCockneyflowergirlElizaDoolittleintoaduchess.ButasElizaherselfpointsouttoHiggins’friendPickeringitisn’twhatshelearnsordoesthatdetermineswhethershewillbecomeaduchessbuthowshe’streateD.Theimplication含义ofthePygmalionEffectforleadersandmanagersismassivE.Itmeansthattheperformanceofyourteamdependslessonthemthanitdoesonyou.Theperformanceyougetfrompeopleisnomoreorlessthanwhatyouexpectwhichmeansyoumustalwaysexpectthebest.AsGoethesaidTreatamanasheisandhewillremainasheis.TreatamanashecanandshouldbeandhewillbecomeashecanandshouldbE.26.TheunderlinedwordratinginParagraph1canbereplacedby_________.A.programB.regulationC.correctionD.classification27.What’sthepassagemainlyabout?A.A.newscientificexperiment.B.TheSelf-fulfillingEffect.C.Shaw’splayPygmalion.D.AnimprovedteachingmethoD.28.Theexperimentwasmadeinorderto_________.A.tryoutanewteachingmethodB.pickoutthemostexcellentpupilsC.learnifexpectationsaffectperformanceD.giveeachpupilaproperrating29.WhatmadeElizachangeintoaduchessaccordingtoElizaherself?A.StricttrainingfromHiggins.B.Herownstrongwillandhardwork.C.TheproperwayshewasregardedD.WarmencouragementfromPickering.30.AccordingtothePygmalionEffectifyouwantamantofinishahardtaskinashorttimeyoushouldsay_________.A.I’msureyoucanmakeitB.IwillhelpyouanytimeC.ItisaseasyaspieD.Itdoesn’tmatterifyoufail

Therearerobotsallaroundus.Somedoverycomplicatedjobslikeflyingairplanesanddrivingsubwaytrains.andsomedoonesimplejoB.Whenanautomaticwashingmachineisswitchedonwaterpoursin.Themachinewaitsuntilthewateriswarmenoughforwashingclothes.Itdoesthisbyfeedback反馈.Informationaboutwhatishappeningisfeedbackintotherobottotellwhattodonext.Oureyesearsandothersensesareourfeedback.Theytelluswhatisgoingonaroundus.Sorobotsarelikehumanbeingsintwoways.Theyworkandtheyhavefeedback.Insomewaysrobotsarebetterthanhumanbeings.Theyworkquicklyanddonotmakemistakes.Theydonotgetboreddoingthesamejoboverandoveragain.AndtheynevergettireD.Sorobotsareveryusefulinfactories.Theycanbetaughttodomanydifferentjobs.FirsttheirelectronicbrainmustbeshownhowthejobisdonE.A.personmovestherobot’sarmsandhandsthrougheachpartofthejoB.ThemostintelligentrobotscanmoveandseE.Theireyesarecameras.Theirfingerscanfeelshapesandsizesoftheobjects.Theserobotshavecomputerbrainslinkedtotheireyesandfingerswhichcontroltheiractions.Theexpensiverobotsareusedinscientificresearch.Theydosuchjobashandlingradioactivematerials.36.Inthispassagetheauthortellsusthat________.A.robotsareverypopularB.therearevariouskindsofrobotsC.weseerobotsonlyatcertaintimesD.robotscanbeeasilycontrolled37.Whatdoestheauthorseemtoinformyouaboutrobots?A.TheyshouldbegreatlyimproveD.B.TheywillprobablytakeoverinthefuturE.C.Theyareveryhelpfulandusefultohumans.D.Theyaremachinesthatbreakdownalot.38.Theauthorsaysthatinindustry________.A.robotsbreakdownalotB.robotscandomanyjobsC.robotsonlygetinthewayD.robotssometimescausetroubles

TheTibetanPlateau青藏高原istheworld'shighestplacE.It'sfourtimesthesizeofFranceandhometomostoftheworld'shighestmountains.Asyoumightexpectit'scoldtherE.AnditmaybethatthedeepchilloftheTibetanPlateauplayedaroleintheevolutionofsomeoftheworld'smostcharismatic魅力十足的animals.That'sthebeliefofascientistwhodiscoveredtheskullofawoollyrhino长毛犀ontheTibetanPlateau.Thewoollyrhino—twotonstwotuskslotsofhairandlotsofattitude—wasanIceAgegiant.ItlivedwithotherIceAgebeastsinEuropeandAsiastartingabout2.5millionyearsago.ButXiaomingWangfromtheNaturalHistoryMuseumofLosAngelesCountywasshockedwhenhefounda3.5-million-year-oldrhinoskull头骨化石ontheTibetanPlateau.ItcaughtusbycompletesurprisethattheyareactuallyupinthehighplateauwellbeforetheIceAgehasstartedWangsays.That'saboutamillionyearsbeforetheIceAgestartedinfact.WangthinkshisdiscoveryshowsthatatleastsomeanimalswerepreparedfortheIceAgE.AtleastinthecaseofthewoollyrhinoitactuallyadapteditselfinthecoldenvironmentintheTibetanPlateaubeforetheIceAgehasevenstartedWangsays.TheanimalactuallyuseditsheadtosweepsnowWangexplainssotheycangetatthevegetationbelowthesnowcover.SoWangthinksthePlateauwasasortofevolutionarycradle摇篮forcold-weatheranimals.WhentherestoftheworldeventuallyiceduptheymovedoutofTibetandtookover.AnthonyBarnoskyapaleontologistattheUniversityofCaliforniaBerkeleysaysevennowtheseisolatedcradlesareimportantforevolution进化.TheinterestingthingBarnoskysaysisonEarthtodaywehavebiodiversity生物多样性isolatedincertainspotsandwejustneverknowwhichofthoseisolatedplaceswillbethecradleofevolutionforthenextbigenvironmentalchangecomingdownthepike出现.TheonlyproblemisthattobereadyyouhavetoknowwhatthenextenvironmentwillbelikE.Orjustbeverylucky.16.TheunderlinedwordchillinParA.2couldbereplacedas___________.A.holeB.coldC.shapeD.lake17.WhichisNOTtrueaboutthewoollyrhinos长毛犀ontheTibetanPlateau?A.TheywereIceAgegiantswithtwotuskslotsofhairandlotsofattitudE.B.TheyhadlivedontheTibetanPlateaubeforetheIceAgehasstarteD.C.Theywereabletosweepsnowwiththeirheads.D.Theyhardlyadaptedthemselvesinthecoldenvironment.18.WhatdidAnthonyBarnoskythinkoftheisolatedcradles?A.Theyadaptedthecoldweather.B.Theyplayedanimportantroleinevolution.C.ItwashardtoknowwhethertheywouldchangE.D.Itwaslucktochangethenextbigenvironmental.19.Theresearchmightappearinthe.A.journalscienceB.newspaperC.EnglishtextbookD.blog20.Fromthepassagewecaninferthat_________.A.FacingthecoldtheanimalscontinuouslyevolvedB.XiaomingWangworksintheUSAC.BothWangandBarnoskyarepaleontologistsD.A.Chinesescientistdiscoveredtheskullofawoollyrhino

Nuclearenergyisacontroversialtopic.Therehasbeenwidespreadpublicdebateoverit.Itseemsthatthenuclearenergyiseitheragiganticdisasterwaitingtohappenortheall-powerfulwayofthefuturE.Itisoftenbelievedthatnuclearenergyissomethingwecannotdowithout.Weliveinaconsumersocietywithahugedemandforcommercialproductsofallkinds.Besidesanincreaseinindustrialproductionisconsideredtobeonesolutiontotheproblemofmassunemployment.Suchanincreaseassumesanabundantandcheapenergysupply.Manypeoplebelievenuclearenergyprovidesanendlessandeconomicalsourceofpowerandthatitisthereforefundamentalforanindustriallydevelopingsociety.Amongotheradvantagesisthatnuclearpowerexceptforaccidentsisclean.A.furtheradvantageisthatanuclearpowerstationcanberunandmaintainedbyrelativelyfewtechnicalandadministrativestaff.Thenuclearreactorrepresentsagreatstepinourscientificevolutionandwhatevertheanti-nucleargroupsaysitiswrongtoexpectareturntomoreprimitivesourcesoffuel.Howeveropponentspeoplewhoopposesomethingofnuclearenergypointoutthatnuclearpowerstationsbringadirectdangernotonlytotheenvironmentbutalsotocivilliberties.EnvironmentalistsargueinthelongrunnuclearenergywastesvaluableresourcesanddisturbstheecologytoanextentwhichcouldbringaboutthedestructionofthehumanracE.FurthermoreitisquestionablewhethernuclearpowerisacheapsourceofenergywheneverythingisconsidereD.TherehaveforexamplebeenverycostlyaccidentsinAmericainBritainandofcourseinRussiA.Thepossibilityofincreasesinthecostofuranium铀inadditiontothecostofgreatersafetyprovisions设施couldpricenuclearpoweroutofthemarket.Inspiteofthecaseagainstnuclearenergyabovenuclearenergyprogrammesareexpandingwhichassumesacontinualgrowthinindustrialproductionandconsumerdemands.HoweveritisdoubtfulwhetherthisgrowthwillorcancontinuE.Havingweigheduptheargumentsinbothsidesitseemsthattherearegoodeconomicandecologicalreasonsforsourcesofenergyotherthannuclearpower.56.What’sthewriter’sattitudetowardnuclearenergy?A.ObjectiveB.NegativeC.TolerantD.Appreciative57.Accordingtotheopponentswhichofthefollowingistrueofnuclearenergy?A.PrimitivE.B.EndlessC.Cheap.D.UnsafE.58.Somepeoplebelievethatnuclearenergyisthemostimportantbecause.A.unclearpowerstationscanberunandmaintainedbyrelativelyfewstaff.B.itcanmeetthegrowingdemandofanindustriallydevelopingsociety.C.itrepresentsahugestepforwardinourscientificevolution..D.itprovidesaperfectwayouttoincreaseemployment59.Whichofthefollowingshowsthestructureofthepassage?

Wildelephantsliveinherdsof10toabout50.TheleaderisusuallyafemalE.A.herdcangothroughaforestquietly.IttravelsinasinglelinE.Itgoesabout6milesanhour.Whenfrighteneditmayrunatabout25milesanhour.Whentheyreachwaterelephantsswimacross.Theyaregreatswimmers.Elephantseatgrassleavessmallbranchesandbark.Theyparticularlylikethetenderleavesonthetopoftrees.Howdotheygettheseleaves?Theyusetheirheadstoknocktreesdown.Theycaneasilyknockdowna30-foottreE.ElephantsalsoeatberriesmangoescoconutscornandsugarcanE.Theylovesalt.A.wildmaleadulteats500to600poundsoffoodaday.Manypeoplewanttofindthegraveyards墓地ofelephants.Thereisastrongbeliefthatsuchgraveyardsexist.Hereiswhy.BonesandtusksofdeadelephantshavealmostneverbeenfounD.Searcheshavebeenmadeinforests.Grassyplainshavebeensearchedtoo.ButneitherbonesnortusksarefounD.Elephantsdon’tliveforever.Wherearetheirbones?Theydon’tjustburythemselves.Hereisonebelief.Whenanelephantgetssickorolditinstinctivelyknowsdeathisnear.ItleavestheherD.ItgoesofftoasecretgraveyarD.Theplaceisknownonlytoelephantsandperhapsotheranimalsbutnottohumans.Obviouslysuchagraveyardwouldbefilledwithtusks.ThesewereonceveryvaluablE.TheobjectiveofexplorerswastofindthisgoldminE.Thisgraveyardbeliefmaybeatruthoramyth.ButitisromantiC.ItwouldbeniceifitweretruE.21.Anelephantusuallytravelsataspeedof________perhour.A.around6milesB.around25milesC.nomorethan6milesD.morethan25miles22.Accordingtothepassageelephants’favoritefoodsare_________.A.grassleavessmallbranchesandbarkB.tenderleavesonthetopoftreesC.berriesmangoescoconutscornandsugarcaneD.noneoftheabove23.Fromthepassagewecanlearnthat_________.A.otheranimalsknowwhereelephants’graveyardsareB.elephantsburythemselveswhentheirdeathsarenearC.peoplehavefoundbonesandtusksofdeadelephantsD.whethertherearegraveyardsofelephantsisstillnotknown

Noonecanchangetheweather.Nobodycancontroltheweather.ButifwereadcorrectlythesignsarounduswecantellwhatthemoreimportantchangesintheweatherwillbE.Thiswayoftellingwhattheweatherwillbelikeonthefollowingdayortwoiscalledweatherforecasting.Formanycenturiesandinallcountriespeoplehavestudiedtheweatherandtriedtomakeweatherforecasting.Ringsaroundthesunareasignofcomingrain.Thatmanypeoplefeeltheirjoints关节hurtisasignofwetweather.Somebirdsflyhighiftheweatherisfinebuttheyflynearthegroundifrainyorstormyweatherisontheway.IfyouseearainbowduringrainyweatherthisisasignthattheweatherwillbecomeclearandfinE.Suchrainbowscomeintheevening.IfthestarstwinkleclearlyatnightthenfineweatherwillcontinuE.Ifafogappearsinthemorningjustaboveariverthenthedaywillbewarm.IfthesunsetismostlyredincolourthenthefollowingdaywillbefinE.IfarainbowappearsinthemorningrainyweatherwillprobablycomE.Mostoftheabovesayingshavebeenmadebythepeoplewhohaveusedtheireyesandbrainstomakeweatherforecasting.40.Whichistrueaboutweatherforecasting?A.WeatherforecastingisawayoftellingwhattheweatherwillbelikE.B.Weatherforecastingisareportabouttheweather.C.Weatherforecastingisasignofcomingrain.D.Peoplecanchangetheweatherforecasting.41.Whichofthefollowingcanbeusedheretoreplacetheunderlinedphraseontheway?A.continuingB.reducing.C.coming.D.disappearing.42.Whichofthefollowingsignscantelltheweatherwillprobablyberainy?A.Somebirdsflyhigh.B.A.rainbowappearsinthemorning.C.Thesunsetismostlyredincolour.D.Fogsappearinthemorningjustaboveariver.43.Thebesttitleofthepassageis_______.A.WeatherforecastingplaysanimportantroleinourlifeB.WeatherforecastingcanbringpeoplesomesignsofweatherC.Weatherisforecastedonlybyeyesandbrains.D.Peoplecanpredictweatherbyexperienceindailylife

Sevenspeciesofcarp鲤鱼nativetoAsiahavebeenintroducedintoUnitedStateswatersinrecentdecadesbutit'sfourinparticular－bigheadblackgrassandsilver－thatworryecologistsbiologistsfishersandpolicymakersalikE.Introducedinthesoutheasttohelpcontrolweedsandparasitesinaquaculture水产养殖operationsthesefishsoonspreaduptheMississippiRiversystemwheretheyhavebeencrowdingoutnativefishpopulationsnotusedtocompetingwithsuchaggressiveinvaders.Thecarps'presenceinsuchnumbersisalsoharmingwaterqualityandkillingoffsensitivespecies.Asiancarparestrongtojumpoverbarrierssuchaslowdams.Theylayhundredsofthousandsofeggsatatimeandspreadintonewhabitatquicklyandeasily.Alsofloodinghashelpedthefishexpandintopreviouslyunattainablewaterbodies.Andfishersusingyoungcarpaslivebaithavealsohelpedthefish'sspreadastheyhaveboatsgoingthroughlocksupanddowntheMississippi.ThefederalgovernmentconsiderstheAsiancarpstobeannoyingspeciesandencouragesandsupportsactivecontrolbynaturalresourcesmanagementagencies.FederalandstategovernmentshavespentmillionsintaxdollarstopreventthecarpfrommakingtheirwayintotheGreatLakesbutanunderwaterelectricfenceconstructedtokeepthemouthasnotworkedaswellashopedandpolicymakersarereviewingotheroptionsnow.InthemeantimestateandfederalagenciesaremonitoringtheMississippianditsbranchesforAsiancarpandtestingvariousbarriertechnologiestopreventtheirfurtherspreaD.ForinstancetheNationalParkServiceiscooperatingwiththestateofMinnesota'sDepartmentofNaturalResourcestoconstructnewdamsthatarehighenoughtopreventAsiancarpfromjumpingover.TheAsianCarpRegionalCoordinatingCommitteehasfundedDNAmonitoringinpotentiallyaffectedwaterbodieswherebyresearcherscandeterminewhetherthetroublesomefisharepresentjustbythebiologicalfootprintstheyleavebehinD.Individualscandotheirpartbynottransportingfishbaitorevenwaterfromonewaterbodytoanotherandbyemptyingandwashingboatsbeforemovingthembetweendifferentwaterbodies.25.AsiancarphavebeenintroducedtotheUSAinorderto________.A.improvewaterqualityB.helpsensitivespeciesC.controlthenumberofnativefishesD.controltheecosysteminaquaculture26.ThemeasuretokeepAsiancarpoutoftheGreatLakebutprovednotgoodis________.A.testingvariousbarriertechnologiesB.constructionofanunderwaterelectricfenceC.Emptyingandwashingboatsbeforeusingthem.D.monitoringtheMississippianditsbranchesforAsiancarp27.Itissuggestedfromthepassagethat________.A.aquacultureoperationsaredangeroustothewaterbodiesB.scientifictechnologyisuselessinpreventingAsiancarpspreadingC.boththestateandtheindividualscanmakeeffortstokeepoutAsiancarpD.AsiancarphavesuccessfullyinvadedtheMississippiandtheGreatLakes

AsweallknowtheDragonBoatFestivalisourcountry’straditionalfestivalbutdoyouknowthereisalsoaDragonBoatFestivalinSouthKoreawhichalsofallsonMay5ofthelunarcalendar阴历IthasbeenreportedthatSouthKoreawillapplytoUnitedNationsEducationalScientificandCulturalOrganizationUNESCO联合国教科文组织tomakethecelebrationoftheDragonBoatFestivalitsownintangibleculturalheritage非物质的文化遗产.IfsuccessfulpeoplefromothercountriesmayseetheDragonFestivalasaKoreancreation.Asthebirthplaceoftheyearlyeventmorethan2000yearsagoChinaisnothappywiththesituation.ItwouldbeashameifanothercountrysuccessfullymadeatraditionalChinesefestivalpartofitsownculturalheritageaheadofChinasaidZhouHepingdeputy副cultureminister.TheChineseMinistryofCultureiseventhinkingofmakingitsownapplication申请toUNESCOcoveringalltraditionalChinesefestivalsincludingtheDragonBoatevent.ItisthoughtthatthefestivalisheldinmemoryofthegreatpoetQuYuan340－278BCwholivedintheStateofChuduringtheWarringStatesPerioD.Quwasknowntobeapatriot爱国者andadmiredbyordinarypeoplE.HeissaidtohavejumpedintoMiluoRiverbecausehehadlosthopeinhiscountry’sfuturE.WhenpeopleheardaboutQu’sdeaththeysailedupanddowntheriversearchingforhisbody.TheyalsobeatthedrumstofrightenawaythefishandthrewZongziintothewatertostopthefishtouchingQu.Dragonboatracingissaidtocomefromthissearchforthepoet’sbody.OvertheyearstheDragonBoatFestivalhasspreadthroughouttheworlD.InJapanandVietnamaswellasSouthKoreathefestivalhasmixedwithandbecomepartofthelocalculturE.49.TheDragonBoatFestival.A.isalsokeptbySouthKoreaB.comesfromSouthKoreaC.wascreatedbySouthKoreaD.isSouthKorea’sculturalheritage50.Whatisthereaction反应oftheChineseMinistryofCulturetoSouthKorea’splanningtomaketheDragonBoatFestivalitsownculturalheritageA.FightingagainstSouthKoreA.B.TellingSouthKoreait’snotrighttodoso.C.Consideringtodothesimilarthing.D.AskingSouthKoreanottodoso.51.WhatisthepurposeofholdingtheDragonBoatFestivalA.InmemoryofQuYuan.B.InmemoryofallthepatriotsofChinA.C.Tofrightenawaythefish.D.InhonorofQuYuan’sbirthday.52.AfterQuYuan’sdeathZongziwasthrownintothewaterto.A.feedhimB.protecthisbodyfromgoingbadC.preventthefishbitinghisbodyD.attracthissoul53.NowtheDragonBoatFestivalhasbecomeactivity.A.anationwideB.aworldwideC.anAsianD.aforeign

TherehavealwaysbeenalotofcommonlybelievedbutexercisE.Somepeoplebelievethattheycan’thelpputtingonholdthatiftheystopexercisingtheirmuscleswillturnintofat.HerearesomemoremythsfalseideasaboutbeingfatanddoingweightastheygetolderwhileothersI‘llneverloseweight一IcomefromafatfamilyWrong!Whilewecan’tchangethebodytypewearebomwithwecan’tblameourgenesformakingusfat.There’splentyofevidencethatfatnessrunsinfamiliesandthemainreasonisthattheysharethesamehabitsofeatingtoomuchandexercisingtoolittlE.IamfatbecauseIburncaloriesslowlyWrong!Fatnessisnotcausedbyaslowmetabolism新陈代谢.Infactalthoughfatpeopleconsumemoreenergythanslimpeopletheyalsofailtorealizehowmuchtheyeat!Keepingadiarycanhelpyouworkoutyourdailyfoodintakemoreaccurately.ExerciseisboringWrong!Anythingwillbecomeboringifyoudoitrepetitively.ThekeyistodevelopabalancedandvariedprogramthafsfunaswellasprogressivE.IfyouenjoyaSundaywalktakeadifferentroutE.Ifyoudoyogatryataichiclass.IfyoulikeswimmingsetyourselfadistanceortimechallengE.NopainnogainWrong!Exerciseisnotmeanttohurt.Indeedpainisyourbodytellingyousomething’swrongandcontinuingtoexercisecouldleadtoseriousinjury.Youmayexperiencemilddiscomfortasyoubegintoexerciseregularlybutthisisyourbodyadaptingtothepositivechangesinyourlifestyleandtheachesshoulddisappearrelativelyquickly.Iftheydon’trestandseekmedicaladvicE.40.Whatdoestheauthorthinkaboutbeingfat?A.Itisthefamilygenesthatmakepeoplefat.B.Peoplearefatbecausetheyconsumetoolittleenergy.C.Adiaryofexercisecanpreventpeoplefrombecomingfat.D.Itistheconsequenceofpeople’sunbalancedlifestylE.41.Accordingtotheauthorhowcanwemakeexercisemoreinteresting?A.BytakingvariedexercisE.B.BychoosingsimpleexercisE.C.BydoingregularexercisE.D.BystickingtooutdoorexercisE.42.Whatistheauthor’sopinionaboutNopainnogaininexercising?A.KeepingfitisessentiallyapainfulexperiencE.B.Exerciseshouldbestoppedifcontinuouspainisfelt.C.Paininexerciseisapreconditionforreachingyourgoal.D.Gettingusedtopainleadstopositivechangesinyourbody.43.Whatisthepurposeofthepassage?A.Todeclaretheimportanceofkeepingfit.B.ToclarifysomemisconceptionsaboutfatnessandexercisE.C.Toconfirmwhathaslongbeenbelievedaboutkeepingfit.D.ToexplainsomemedicalfactsaboutbeingfatanddoingexercisE.

Ifyouareafraidofthedarkit'snotabigdeal.It'sperfectlynormaltofeelafraiD.Afterallanimalsdotoo.FearmatterssaysKarenWarkentinanecologist.It'sagoodthingsheaddsbecausefearmakesyoudothingsthatkeepyoualivE.Likekidsmanyanimalsexperiencefearandtheyrespondtothefeelinginvarietyofways.Afrightenedturtlepullsitsheadandlegsinsideitsshell.A.smallfishwillswimawaywhenabighungryfishapproaches.Someanimalsrespondtofearinwaysyoumightnotexpect.Thefirstexampleisthatthefearofbeingeatencanscaresomefrogsrightoutoftheireggs.Warkentinmadethesurprisingdiscoverywhilestudyingred­eyedtreefrogsinCostaRicA.Inthisspeciesfemalefrogsattachjellylikeclumps果冻一样的块状物oftheireggstotheundersidesofleaves.Theleaveshangonbranchesthatdangle悬挂overponds.Aftertheyhatchfromtheeggsthetadpoles蝌蚪thenfallintothewaterwheretheyeventuallygrowintoadultfrogs.Treefrogeggsusuallygrowfor6daysbeforehatching孵出Iftheysensethatahungrysnakeisabouttoattackhowevertheycanhatchupto2daysaheadoftheschedulE.AsthesnakesareunabletoswimbyfallingintothewaterearlythetadpolescanescapE.Ifhatchingearlyhelpsprotectred­eyedtreefrogsfromsnakesyoumightwonderwhytheireggsdon'talwayshatchsooner.Itturnsoutthathatchingearlybringsitsowndanger.Oncetadpoleslandinthewaterhungryfishandotheranimalsliketoeatthemtoo.Stayingintheireggsfor6daysthenallowsfrogembryos胚胎togrowbigandstrong.Thisextragrowthimprovestheirchancesofsurvivinginthewater.59.Itcanbeinferredfromthepassagethatfears________.A.helpanimalsgrowbiggerandstrongerB.arelesscommonamongyounganimalsC.helpanimalsmovealottofittheenvironmentD.aremoreorlessimportantforanimalstosurvive60.Wearetoldinthepassagethattreefrogs________.A.facedangerbothinsidetheireggsandinthewaterB.willgrowfastiftheyfallintothewaterlaterC.aresurprisinglycleverwheninsidetheireggsD.stayintheireggslongeriftheyarefrightened61.Whatisthebesttitleofthepassage?A.Whatisfear?B.Whydowefeelafraid?C.YoufeelafraidanimalsdotooD.Fearisagoodthing62.Whatwouldbediscussedinthefollowingparagraph?A.FurtherexplanationsastowhytreefrogshatchaheadoftheschedulE.B.Howtheunbornfrogsknowwhenasnakeisabouttoattackthem.C.Anotherexampleofanimalsthatrespondtofearinanunexpectedway.D.Howtreefrogsimprovetheirchancesofsurvivalbeforefallingintothewater.

Whatexactlyisalie?Isitanythingwesaywhichweknowisuntrue?Orisitsomethingmorethanthat?Forexamplesupposeafriendwantstoborrowsomemoneyfromyou.YousayIwishIcouldhelpyoubutI’mshortofmoneymyself.Infactyouarenotshortofmoneybutyourfriendisinthehabitofnotpayinghisdebtsandyoudon’twanttohurthisfeelingsbyremindinghimofthis.Isthisreallyalie?ProfessorJeraldJellisonoftheUniversityofSouthernCaliforniahasmadeascientificstudyoflying.AccordingtohimwomenarebetterliarsthanmenparticularlywhentellingawhiteliesuchaswhenawomanatapartytellsanotherwomanthatshelikesherdresswhenshereallythinksitlooksterriblE.Howeverthisisonlyonesideofthestory.Otherresearcherssaythatmenaremorelikelytotellmoreseriousliessuchasmakingapromisewhichtheyhavenointentionofcarryingout.Thisisthekindofliepoliticiansandbusinessmenaresupposedtobeparticularlyskilledat:theliefromwhichtheliarhopestoprofitorgaininsomeway.Researchhasalsobeendoneintothewaypeople’sbehaviourchangesinanumberofsmallapparentlyunimportantwayswhentheyliE.Ithasbeenfoundthatiftheyaresittingdownatthetimetheytendtomoveaboutintheirchairsmorethanusual.TothetrainedobservertheyaresayingIwishIweresomewhereelsenow.TheyalsotendtotouchcertainpartsofthefacemoreofteninparticularthenosE.OneexplanationofthismaybethatlyingcausesaslightincreaseinbloodpressurE.Thetipofthenoseisverysensitivetosuchchangesandtheincreasedpressuremakesititch痒.AnothergesturewhichgivesliarsawayiswhatthewriterDesmondMorrisinhisbookManwatchingcallsthemouthcover.Hesaysthereareseveraltypicalformsofthissuchascoveringpartofthemouthwiththefingerstouchingtheupper-liporputtingafingerofthehandatonesideofthemouth.Suchagesturecanbeunderstoodasanunconscious无意识的attemptonthepartoftheliartostophimselforherselffromlying.Ofcoursesuchgesturesasrubbingthenoseorcoveringthemouthormovingaboutinachaircannotbetakenasproofthatthespeakerislying.Theysimplytendtooccurmorefrequentlyinthissituation.Itisnotonegesturealonethatgivestheliarawaybutawholenumberofthingsandinparticularthecontext情境inwhichthelieistolD.68.AccordingtoProfessorJellisonawhitelieappearstobealie________.A.thataretoldtomeantheoppositeB.thataliartellsunconsciouslyC.whichisharmlessandtoldsoasnottohurtsomeoneelseD.thatthetellertellstoprofitorgainsomeadvantagefromit69.Researchonlyingsuggeststhatwomen__________.A.tellmoreliesthanmendoB.aremoreskilledattellinglessseriousliesthanmendoC.liketoflatter奉承peoplemoreoftenthanmendoD.arebetterattellingliesatpartiesthanmendo70.Onereasonwhypeoplesometimescovertheirmouthswhilelyingisthat_______.A.theywishthosewordshadnotcomeoutoftheirmouthsB.mouthisverysensitivetophysicalchangescausedbylyingC.theyregretthattheirliesmighthurtotherpeople’sfeelingsD.theyaretryingunconsciouslytostopthemselvesfromtellinglies71.Wecanrealizefromthepassagethat_________.A.thereisnosimplewaytojudgeifpeopletellliesornotB.politiciansandbusinessmenliemoreoftenthanordinarypeopleC.somegesturesareproofsoflyingonlyiftheyoccurtoooftenD.certaingesturescanbeusedasprooftojudgewhetheraspeakerislyingornot

Squirrelsoftencommunicatewithwhistleschirpsandchuckswhichsoundlikethewordchuck.WhistlesandchirpsarelikethesoundsthatmanybirdsmakE.Nowscientistshavetranslatedsomeoftheirsquirrel-speak.HareaprofessorofzoologyattheUniversityofManilohainWinnipegandhisteammanagedtorecordsquirrels’alarmcalls.Theresearchersstudiedthesoundsandthenplayedthembackto60wildsquirrelswhichthescientistsapproachedindividuallywithavideorecordertocapture抓拍theirresponses.Somesquirrelsliftedtheirheadsupandbecamealert警惕的.Creaturesthatweremorefrightenedsimplyranfortheirlivesanddivedintocaves.Ineffectthenwhistlesthatmixwithchuckssay‘there’sanenemyofaveragethreatthat’shere’andwhistleswithoutchuckssay‘there’sanenemyofseeminglyaveragethreataroundheresomewhere’whilepurechirpssay‘I’mhidingherebecausethere’sanimmediatedanger.’HaretoldDiscoveryNews.Hareandsomeotherresearchersbelievesuchsoundsarepartofanadvancedlanguagethatdevelopsjustasallothercommunicationsystems.Althoughsquirrelsrisktheirliveswhentheycallouttowarnothersofthreatsothersquirrelsmightadmirethisbehaviourthusincreasinglythecaller’ssocialstatuslikehumanswholookuptoheroes.Hareaddedthatotheranimalssuchasbirdsprobablyunderstandatleastsomesquirrellanguagesincetheyalsomaybenefitfromthealarmcalls.InfactanotherCanadianstudyfoundthatdeep-voicedblack-cappedchickadeeshavetheirownlanguagetoo.Accordingtocertainresearchtherearealotoftidingsinchickadees’callssuchasdirectingfellows’activitieskeepingincontactbetweenmatesandraisingalarms.Whilechickadeesandotherbirdsareoftenwelcomedintogardensbyhomeownerssquirrelsarefrequentlyviewedaspests害兽.Harewishesagreaterunderstandingofthecomplexsociallivesandcommunicationsystemsofsquirrelswillprovidehopethathumanswillgainagreaterappreciationandstopdoingharmtotheseanimals.60.Thetextmainlytalksabout.A.thestudyonthelanguageofsquirrelsB.thecomparisonbetweensquirrelsandchickadeesC.thecallingfortheprotectionofsquirrelsD.thewaysforsquirrelstoescapefromtheirenemies61.Ifasquirrelisinaverydangeroussituationitwouldprobablymake.A.whistleswithchucksB.purechirpsC.whistleswithoutchucksD.repeatedchucks62.TheunderlinedwordtidingsinParagraph6probablymeans.A.difficultiesB.poiseC.messagesD.languages63.Whatcanbelearnedfromthistext?A.Squirrelscommunicatewitheachotherashumansdo.B.Somesquirrelsunderstandtherecordedalarmcalls.C.Otheranimalsalsowellunderstandthelanguageofsquirrels.D.Birdssuchaschickadeesdon’thavetheirownlanguagE.

Runninglikethewindroaring咆哮likethundertigershavelongbeenfearedandrespectedasakingoftheanimalworlD.Butlastweekareportsaidthattherearenomorethan30wildtigersleftinsouthChinA.ThiswastheconclusionofateamofscientistsfromChina'sStateForestryAdministrationandtheWorldNatureFunD.TheSouthChinatigeralsoknownastheChinesetigerisnativetosouthernChinA.Inthe1950'stherewereover4000tigersfoundinmountainforestsinthecountry.Butduetothedestructionoftheirnaturalhabitatanduncontrolledhuntingithasbeenpushedontothelistoftheworld'stoptenmostendangeredspecies.Sixty­sixofthebigcatscanbefoundinthecagesofadozenzoosaroundChinA.Buttheyarenothingliketheirwildcousins.Theyhavelosttheirnaturalskillssuchashuntingandkilling.Iftheyweresetfreetheycouldnotlookafterthemselves.BreedinghasdamagedthequalityofthespeciessaidPeiEnledeputydirectoroftheShanghaiZoo.ToreintroducethespeciesintothewildthecountrystartedaprogrammetosendfivetotenyoungtigerstoSouthAfricA.FourofthemhavealreadyarriveD.Progresshasbeenmadeastwoeldertigershaverecoveredsomeoftheirinstincts本能andcanhuntwildanimalsbythemselvesattheAfricanbasE.SouthAfricansareveryexperiencedinreintroducingbiganimalstothewilD.ThecountryhasverygoodnaturalconditionsforthetigerstolearninsaidLuJunofficedirectoroftheNationalWildlifeResearchandDevelopmentCenter.WetriedinFujianProvincebutitwasnotsuccessfulastherewasnotacompleteeco­chain生物链andtherewasalackofspacE.ThetigersshouldreturntoChinain2007whenthereservationsinFujianareready.56.WhatisthemainreasonfortheSouthChinatigerbecomingoneoftheworld'stoptenmostendangeredspecies?A.Becauseithaslostitsnaturalinstincts.B.Becausethereisnotacompleteeco­chain.C.Becausethereisnospaceforit.D.Becauseuncontrolledhuntinghasdestroyeditsnaturallivingconditions.57.HowistheprogrammeofsendingseveraltigerstoSouthAfricagettingon?A.Itseffectstillremainstobeseen.B.Twotigerscanalreadycompetewiththeirwildcousins.C.Someofthetigersarealreadyontheroadtorecoveringtheirnaturalskills.D.Thetigersshouldbeabletorecovertheirinstinctscompletelyby2007.58.Bysayingbuttheyarenothingliketheirwildcousinsthewritermeansthat________.A.theyarenolongerfearedbyotherwildanimalsB.theydon'tknowhowtohuntorkillC.acompletechangehasresultedinthespeciesbecauseofbreedingD.toreintroducethemintothewildhasbecomeanurgenttask59.WhatisthepurposeofsendingyoungtigerstoSouthAfrica?A.TohelpthetigersrecovertheirabilitytoliveinthewilD.B.Toprovidethemwithabetterenvironment.C.Togetthetigerstogoonatour.D.Tofindacompleteeco­chainforthem.

Itisatalltalethatterrifiesmostyoungchildren.SwallowapieceofchewinggumanditwillremaininyourbodyforsevenyearsbeforeitisdigesteD.Anevenworsetaleisthatswallowedgumcanwrapitselfaroundyourheart.Butwhatwouldhappenifyoushouldaccidentallyeatastickofgum?Chewinggumismadeoutofgumbasesweetenerscoloringandflavoring.Thegumbaseisprettyindigestible—itisamixtureofdifferentingredients成分thatourbodycan’tabsorB.Mostofthetimeyourstomachreallycannotbreakdownthegumthewayitwouldbreakdownotherfoods.Howeveryourdigestivesystemhasanotherwaytodealwiththingsyouswallow.Afterallweeatlotsofthingsthatweareunabletofullydigest.Theykeepmovingalonguntiltheymakeitallthewaythroughthegut肠道andcomeoutattheotherendoneortwodayslater.Thesaliva唾液inourmouthwillmakeanattemptatdigestingchewinggumassoonasweputitinourmouth.Itmightgetthroughtheshellbutmanyofgum’sbaseingredientsareindigestiblE.It’sthendowntoourstomachmuscles—whichcontractandstretchmuchlikethewayanearthwormmoves—toslowlyforcethethingsthatweswallowthroughoursystems.Swallowingahugepieceofgumorswallowingmanysmallpiecesofguminashorttimecancauseablockage堵塞withinthedigestivesystemmostofteninchildrenwhohaveathinnerdigestivetractthanadults—butthisisextremelyrarE.58.Childrenmightfeelterrifiedafterswallowingchewinggummainlybecause.A.theybelievethetalltaleaboutchewinggumB.chewinggumwillstayintheirbodyforyearsC.theirheartwillbewrappedbychewinggumD.chewinggumisindigestibleforchildren59.Whathappenstothefoodthatcan’tbefullybrokendown?A.Itremainsinourdigestivesystemforever.B.Itwillbeeventuallymovedoutofourbody.C.Itwillfightagainstthepowerofthegut.D.Itwillsticktothegutforoneortwodays.60.Whatwouldbethebesttitleforthetext?A.Howdoesourdigestivesystemwork?B.Canchewinggumbeswallowedbykids?C.Doesswallowingchewinggummatter?D.Whyswallowingchewinggumfrightenskids?

SeaLifeMelbourneAquarium水族馆Theall-newSeaLifeMelbourneAquariumlocatedintheheartofMelbourne’sCBDisoneofVictoria’sleadingvisitorattractionsandanunforgettableoutingforthewholefamily.Having12amazingzonesofdiscoverySeaLifeMelbourneAquariumistheveryplacethatyoucannotmisswhenyouvisitthecity.*OpeningTimesSeaLifeMelbourneAquariumisopenfrom9:30amuntil6:00pmeverydayoftheyearincludingpublicholidays.Lastadmissionisat5:00pmonehourbeforeclosing.*Location.SeaLifeMelbourneAquariumislocatedonthecornerofFlindersStreetandKingStreetMelbournE.ItislocatedontheYarraRiveroppositeCrownEntertainmentComplex.*GettingtoSeaLifeMelbourneAquariumTrainTheSeaLifeMelbourneAquariumtrainstopislocatedonthefreeCityCircleTramroute公交线路andalsoroutes70and75.CityCircletramsrunevery10minutesinbothdirections.ShuttleBusTheSeaLifeMelbourneAquariumisafreebusservicestoppingatkeytouristattractionsinandaroundtheCity.Runningdailyevery15minutesfrom10:00amto4:00pm.CarParkingWhilethereisnopubliccarparkingatSeaLifeMelbourneAquariumthereareseveralpubliccarparkinglotsavailableonlyashortwalkaway.*WheelchairAccessSeaLifeMelbourneAquariumprovidespeopleinwheelchairswithfullaccesstoall12zones.Eachflooralsohaswheelchairaccessibletoilets.*TermsTicketswillbeemailedtoyouimmediatelyafterbuyingoryoucandownloadandprintyourticketoncepaymenthasbeenaccepteD.PleaseprintoutallticketsboughtandpresentatthefrontentranceofSeaLifeMelbourneAquarium.Noticketnoentry!56.SeaLifeMelbourneAquarium_________.A.islocatedatthecenteroftheCBDinthecityB.has12mostattractiveplacesinMelbourneC.admitsvisitorsfrom9:30amuntil6:00pmD.isbesideCrownEntertainmentComplex57.GettingtoSeaLifeMelbourneAquariumvisitorscantake________.A.trainsfromsouthernCrosstrainstationB.shuttlebusesaroundthetrainstationC.boatsacrosstheYarraRiverD.eithertramroute70or7558.SeaLifeMelbourneAquariumoffersvisitors________.A.freecarparkingB.wheelchairaccessC.InternetconnectionD.transportationservice59.TicketstoSeaLifeMelbourneAquarium________.A.arefreetoallvisitorsB.canbeboughtbyemailC.arecheckedattheentranceD.canbeprintedattheticketoffice

HumanremainsofancientsettlementswillbereburiedandlosttoscienceunderalawthatthreatensresearchintothehistoryofhumansinBritainagroupofleadingarchaeologists考古学家says.InaletteraddressedtothejusticesecretaryKenClarke40archaeologistswriteoftheirdeepandwidespreadconcernabouttheissuE.ItcentresonthelawintroducedbytheMinistryofJusticein2008whichrequiresallhumanremainsunearthedinEnglandandWalestobereburiedwithintwoyearsregardlessoftheiragE.ThedecisionmeansscientistshavetoolittletimetostudybonesandotherhumanremainsofnationalandculturalsignificancE.YourcurrentrequirementthatallarchaeologicallyunearthedhumanremainsshouldbereburiedwhetherafterastandardperiodoftwoyearsoffurtherspecialextensioniscontrarytobasicprinciplesofarchaeologicalandscientificresearchandofmuseumpracticetheywritE.Thelawappliestoanypiecesofboneuncoveredataround400digsitesincludingtheremainsof60orsobodiesfoundatStonehengein2008thatdatebackto3000BC.ArchaeologistshavebeengrantedatemporaryextensiontogivethemmoretimebuteventuallytheboneswillhavetobereturnedtothegrounD.ThearrangementsmayresultinthewasteoffuturediscoveriesatsitessuchasHappisburghinNorfolkwherediggingiscontinuingafterthediscoveryofstonetoolsmadebyearlyhumans950000yearsago.IfhumanremainswerefoundatHappisburghtheywouldbetheoldestinnorthernEuropeandthefirstindicationofwhatthisspecieswas.UnderthecurrentpracticeofthelawthoseremainswouldhavetobereburiedandeffectivelydestroyeD.Before2008guidelinesallowedfortheproperpreservationandstudyofbonesofsufficientageandhistoricalinterestwhiletheBurialAct1857appliedtomorerecentremains.TheMinistryofJusticeassuredarchaeologisttwoyearsagothatthelawwastemporarybuthassofarfailedtoreviseit.MikeParkerPearsonanarchaeologistatSheffieldUniversitysaid:Archaeologistshavebeenextremelypatientbecausewewereledtobelievetheministrywassortingoutthisproblembutwefeelthatwecannotwaitanylonger.Theministryhasnoguidelinesonwhereorhowremainsshouldbereburiedoronwhatrecordsshouldbekept.1.Accordingtothepassagescientistsareunhappywiththelawmainlybecause.A.itisonlyatemporarymeasureonthehumanremainsB.itisunreasonableandthusdestructivetoscientificresearchC.itwasintroducedbythegovernmentwithouttheirknowledgeD.itisvagueaboutwhereandhowtoreburyhumanremains2.Whichofthefollowingstatementsistrueaccordingtothepassage?A.TemporaryextensionoftwoyearswillguaranteescientistsenoughtimE.B.HumanremainsoftheoldestspeciesweredugoutatHappisburgh.C.HumanremainswillhavetobereburieddespitetheextensionoftimE.D.ScientistshavebeenwarnedthatthelawcanhardlybechangeD.3.WhatcanbeinferredabouttheBritishlawgoverninghumanremains?A.TheMinistryofJusticedidnotintendittoprotecthumanremains.B.TheBurialAct1857onlyappliedtoremainsuncoveredbefore1857.C.Thelawonhumanremainshasn’tchangedinrecentdecades.D.TheMinistryofJusticehasnotdoneenoughaboutthelaw.4.Whichofthefollowingmightbethebesttitleofthepassage?A.NewdiscoveriesshouldbereburiedthegovernmentdemandsB.ResearchtimeshouldbeextendedscientistsrequireC.LawonhumanremainsneedsthoroughdiscussionauthoritiessayD.Lawcouldburyancientsecretsforeverarchaeologistswarn

InthelongdiscussionofwaterontheMoonanewstudycontradicts与相矛盾somerecentreportsthatsaytheMoonhadwateratthetimeofitsformation.A.groupofresearchersreportsinthejournalSciencethatwhentheMoonwascreatedsome4.5billionyearsagotherewasnotmuchhydrogen氢气onitandthereforenowater.TheresearcherssurveyedandevaluatedthisbyanalyzingchlorineisotopesfoundinlunarrocksamplesfromApollomissions.Therangeofchlorine氯isotopesinlunarsampleswas25timesthatfoundinsamplesfromEarth.IftheMoonhadsignificantlevelsofhydrogenasEarthdidthisrangewouldhavebeenfarlesssaidZacharyD.SharpascientistintheDepartmentofEarthandPlanetarySciencesandthestudy’sleadauthor.ThechlorinewouldhavestucktogetherwithhydrogenformingcompoundslikehydrogenchlorideandescapedfromtheMoon’ssurfacehesaiD.Theabundanceofchlorineindicatesalackofhydrogenandwater.TheamountofwaterontheMoonwaswaytoolowforlifetohaveeverhavepossiblyhaveexistedtherehesaiD.MostscientistsbelievetheMoonwasformedwhenalargeobjectstruckEarthbreakingoffachunkavastpiecethathassinceorbitedEarth.OnEarthgoesonetheorywaterwasreleasedassteamfrommoltenbasalts玄武岩overtimeeventuallyformingbodiesofwater.AnunderstandingofwhethertheMoonwasdryorwetwillhelpusunderstandhowwaterappearedonEarthDr.SharpsaiD.1.A.newstudyindicatesthatonthemoon.A.thereisplentyofwaterB.waterisunlikelytoexistC.waterexistedinthepastD.thereisalittlewaternow2.Theauthorwouldliketotellusthroughthesixthparagraph.A.whythereisnowaterontheMoonB.howtheMoonwasformedC.whentheEarthstrucktheMoonD.wheretheMoonorbited3.Whatdoestheunderlinedwordthisstandforinthesecondparagraph?A.NeitherhydrogennorwaterontheMoon.B.ToomuchchlorineisotopesontheMoon.C.NotbeingmuchhydrogennowaterontheMoon.D.MorechlorineexistsontheMoonthanEarth.4.WhichofthefollowingisNOTTRUEaccordingtothepassage?A.ZacharyD.SharpascientistofNewMexicowasinchargeofthenewstudy.B.Chlorineisotopesare25timesinlunarlargerthanEarth.C.Themoreabundantchloridetheshorterhydrogenandwater.D.ThenewstudyisbeneficialtounderstandhowwaterappearedonEarth.5.Whatcanwelearnfromthepassage?A.ThereareenoughwaterontheEarth.B.HydrogenchlorideeasilyescapedfromtheMoon’ssurfacE.C.TheEarthhadsignificantlevelsofhydrogen.D.WaterontheEarthisdirectlyfrommoltenbasalts.

WhatissodifferentaboutMoistureSurge?Thesehydratingformulas保湿配方rapidlymakethirstyskinsmoothandsoft.Oil-freeandfitforallskintypestheyhelp:Quicklyincreaseskin’smoisturelevelwithhydratingreliefinahigh-speeddeliverysystem;Restoreskin’smoisturebalance;Makeupdrylines.MoistureSurgeExtendedThirstReliefRapidlong-lastinghydrationinarefreshingoil-freegel胶.Fast-absorbingformulalocksinmoisturealldayandhelpsskinbetterresistdrydespitegreatshiftsinhumidity.Usewheneverwhereverneededunderorovermakeuporasa5-minutemoisturemask面膜.MoistureSurgeFaceWaterThirstySkinReliefRefreshingfacialwater.Greatforuseanytimeanywhereunderorovermakeup.MoistureSurgeExtraRefreshingEyeGEL﹡Coolandcomfortableeyegel.Doctor-testeD.Usewheneverneededunderorovermakeup.MoistureSurgeFacialSheetMask﹡Refreshingpre-moistenedfull-facesheetmask.Apply1-2timesaweekforaquickmoisturizing.Touse:unfoldandapplytocleanskin.Restfor10minutesandthenremovethemask.MoistureSurgeRefreshingEyeMask﹡Refreshingpre-moistenedeyepads垫.Apply1-2timesaweektoreduceunder-eyepuffiness肿andskinwithquickhydration.Touse:removepadsfrompacketsandseparatE.Applytocleanunder-eyeskin.Restfor10minutesandthenremovepads.MoistureSheerTint15﹡RefreshingwashofcolorthathydratesandmakesskinbrightwithspecialmaterialsandSPF15sunscreen.Threeskin-friendlyshadeswearbeautifullyaloneorundermakeup.WARNING:keepoutofeyes.Stopuseifanypainoccurs.Keepoutofreachofchildren.Pleasepayattentionto:﹡standsforNotavailableinallcountries.65.AccordingtothepassageMoistureSurgeisthenameof_______.A.aproductofeyesB.anoil-freeformulaC.asun-blockingcreamD.aseriesofskincareproducts66.WhatdoweknowaboutMoistureSurgeExtraRefreshingEyeGelandMoistureSurgeRefreshingEyeMask?A.TheycanbeusedatanytimE.B.Theymaybegoodforeyes.C.Theyareakindofgel.D.Theyhavebeentestedondoctors.67.WhichofthefollowingproductscanNOTbeusedovermakeup?A.MoistureSurgeFaceWaterThirstySkinRelief.B.MoistureSurgeExtraRefreshingEyeGel.C.MoistureSurgeExtendedThirtyRelief.D.MoistureSheerTintSPF15.68.Howmanyproductsmentionedinthepassagecanbeboughtallovertheworld?A.TwoB.FourC.SixD.Eight69.Thistextismostprobablytakenfroma______.A.textbookB.Doctor’snotebookC.magazineD.bottleofmedicine

Cancer-killingX-raysnuclearthreatdetectionandanewtypeofplasticoutoffishscales鱼鳞werebehindtheprojectsthattooktopawardsatthe2011IntelInternationalScienceandEngineeringFair.Inadditiontothosetopwinnershundredsofstudentstookover$4millioninawardsandprizeshomefromtheawardsceremony.TheweeklongsciencecompetitionaprogramofSocietyforScience&thePublicdrewover1500studentsfromallovertheworlD.Yourinnovationwillhelpourglobalcommunitytransition过渡tosustainable可持续的energysourcesdecreasetheimpactofnationaldisastersandleadtonewwaysofpreventingandtreatingdiseaseSocietyforScience&thePublicpresidentandScienceNewspublisherElizabethMarincolatoldthewinnersattheawardsceremony.Congratulationstoeachoneofyou.Thetopprizeof$75000theGordonE.MooreAwardwenttotwoCaliforniahighschoolseniorswhoinventedawaytofrycancercells---cancer-killingX-rays.MattewFeddersen17andBlakeMarggraff18saidWhenhitwithX-raysthetinproducedsecondaryradiationthatcouldkillmorecellsthanX-raysalonewoulD.SeventeenstudentstookhomeIntelBestofCategoryawardsinclassesrangingfromAnimalSciencetoEnergyandTransportation.BestofCategoryawardscomewith$5000tothestudent$1.000tohisorherschooland$1.000tothesciencefairwheretheworkwasfirstpresenteD.29.WhatdoestheunderlinedwordinnovationinParagraph2mean?A.introduction.B.invitation.C.Invention.D.information.30.TheGordonE.MooreAwardwasgivenfor_____.A.cancer-killingX-raysB.nuclearthreatdetectionC.anewtypeofplasticoutoffishscalesD.transitiontosustainableenergysources31.WhowonIntel’sYoungScientistsAward?A.ElizabethMarincolA.B.MattewFeddersen.C.BlakeMarggraff.D.TaylorWilson.32.What’sthemainideaofthetext?A.Thestudents’inventionsgotgreathonor.B.Theyouths’inventionsreallysurprisedpeoplE.C.Manynewmaterialswereusedinthestudents’inventions.D.Theyouthsgotmuchfundingtodeveloptheirinventions.

LeWhifaninhaler吸入剂thatallowschocolateloverstomeettheirneedswhenevertheypleasewithoutputtingonweightistobereleasedinBritishstores.Theinventioncalledtheworld’sfirstbreathablefoodbyitscreatorsletconsumerssuckinthetasteofchocolateandcoffeewhiletakingonlessthanonecaloriE.ItsmakersclaimitwillenabledieterstoenjoytheirfavoritesnackswithoutworryingabouttheirwaistlinE.Thelip-stick-styletubecontainshundredsofmilligramsoftinyfoodparticleswhicharesmallenoughtobecomeconveyedbyairbuttoolargetoenterthelungs.EachLeWhifcontainsenoughflavorabouteighttotenwhiffs气味andcosts$1.99onitsownor$4.99forapackofthreE.Theinhalerisavailableinchocolateraspberrychocolateandmintchocolatemodelsaswellascoffeeflavorwhichgivesadoseofcaffeineequivalent相等的toasmallshortofstrongblackcoffeE.ItwasinventedbyProf.DavidEdwards.HesaidLeWhifwasnotdesignedtoreplacefoodbutcouldbeusedtoincreasediningexperiencesuchasallowingpeopletosampleavarietyofdishesfromrestaurantmenusbeforeorderingtheirmealsHesaidIntermsoflivingoffwhiffingwearen’tevenclosetobeingtherE.Butthereclearlyhasbeenarevolutionoverthelastfewyearswhereweareeatingsmalleramountsoffoodmorefrequentlyandchoosingfoodoritsaesthetic审美的pleasurE.Wewillbelaunchingnewwhiffingexperiencesprobablyeverysixmonths.Itisreasonabletoassumethatthenextlineofwhiffingproductswillbeevenmorehealth-centereD.TheproductthatwasreleasedinParisin2009andtheinitialproductionof25000inhalersweresoldoutwithinamonth.IthassincebeenmadeavailableacrossFranceandintheUS.InBritainLeWhifistobesoldfirstlyinHouseofFraserforamonthafterwhichitcouldbecomemorewidelydistributeD.1.AccordingtoParagraph1LeWhif______.A.containsfewnutrientsinfactB.isanewkindofhealthyfoodC.ispopularwithBritishchocolateloversD.isabletohelpdietersloseweight2.WhatisthemainpurposeofinventingLeWhif?A.ToproduceallkindsofchocolatE.B.ToreplacethetraditionalchocolatE.C.Toincreasepeople’sdiningexperiencE.D.Tochangethecoffeeflavor.3.WhichofthefollowingstatementsdoesDavidEdwardsagreewith?A.Hisnewproductswillcomeoutonceayear.B.LeWhifisarevolutionthatwillchangepeople’slifecompletely.C.LeWhifcanmakepeopleeatlessfooD.D.ThewhiffingproductsinthefuturewillbeimproveD.4.Fromthepassageweknowthat______.A.LeWhifhasn’tbeenmadeavailableinBritishstoresB.customerscanbuyLeWhifallovertheworldC.LeWhifcanhelptoloseweightbutisharmfultohealthD.LeWhifcontainshundredsoftinyfoodparticleswhicharesmallenoughtoenterthelungs

IfthereisonethingI’msureaboutitisthatinahundredyearsfromnowwewillstillbereadingnewspapers.Itisnotthatnewspapersareanecessity.Evennowsomepeoplegetmostoftheirnewsfromtelevisionorradio.ManybuyapaperonlyonSaturdayorSunday.Butformostpeoplereadinganewspaperhasbecomeahabitpasseddownfromgenerationtogeneration.ThenatureofwhatisnewschangE.Whatbasicallymakesnewsiswhataffectsourlives—thebigpoliticalstoriesthecoverage报道ofthewarsearthquakesandotherdisasters.TheywillcontinuemuchthesamE.Ithinktherewillbemorecoverageofscientificresearches.Theyarealreadyhappeninginareaswhichdirectlyaffectourliveslikegenetic基因engineering.InthefutureIthinktherewillbemorecoverageofscientificexplanationsofwhywefeelaswedo—aswedevelopabetterunderstandingofhowthebrainoperateandwhatourfeelingsreallyarE.It’squitepossiblethatinthenextcenturynewspaperswillbetransmitted传递electronicallyfromFleetStreetandprintedoutinourownhomE.InfactI’mprettysurethathowitwillhappeninthefuturE.YouwillprobablybeabletochoosefromamenumakingupyourownnewspaperbypickingoutthethingsyouwanttoreaD.—sportsandinternationalnewsetC.IthinkpeoplehavegotitwrongwhentheytalkaboutcompetitionbetweenthedifferentmediA.Theyactuallyfeedoffeachother.Somepeopleonceforesawthattelevisionwouldkilloffnewspaperbutthathasn’thappeneD.Whatisreadontheprintedpagelastslongerthanpicturesonascreensorsoundlostintheair.AndasfortheInternetit’sneverreallypleasanttoreadsomethingjustonascreen.46.Whatisthebesttitleforthepassage?A.TheBestWaytoGetNewsB.TheChangesofMediaC.MakeYourOwnNewspaperD.TheFutureofNewspapers47.Inthewriter’sopinioninthefuture______.A.morebigpoliticalaffairswarsanddisasterswillmakenewsB.newspaperwillnotbeprintedinpublishinghousesanylongerC.newspaperswillcovermorescientificresearchD.moreandmorepeoplewillwatchTV48.Fromthepassagewecaninfer______.A.newspaperswillwinthecompetitionamongthedifferentmediaB.newspaperswillstaywithustogetherwithothermediaC.televisionwilltaketheplaceofnewspapersD.thewriterbelievesomemediawilldieout49.Thephrasefeedoffinthelastparagraphmeans______.A.competewithB.dependonC.fightwithD.killoff50.Whichstatementbelowisnottrueaccordingtotheauthor?A.Somepeoplemaynotliketoreadonascreen.B.ActuallynewspaperismorepleasantthanothermediA.C.Somepeoplegetmostoftheirnewsfromtelevisionorradio.D.Somescientificresearcheshavealreadyaffectedourlivesnow.

Animalsareconsideredtobeendangeredifthespeciesisclosetoextinctionthroughoutallormostofitsenvironment.Animalsbecomeendangeredforavarietyofreasons.Someanimalsbecomeendangeredwhentheirhabitatscontainresourcesforhumans.ForexamplecommercialforestcuttingintheAmazonRainforesthasseriouslyreducedthepopulationofmanyanimalspeciesandleadtotheextinctionofothergroups.Landitselfisanimportantresourcetohumanssinceitprovidesuswithlivingspaceandwhenpeoplereplaceanimalhabitatswithhumanhabitatsitcanleadtolargerlossofnaturalspecies.Commercialandindustrialoperationsmayreducelandorwaterforanimalsandpollutetheirenvironment.DuetowaterpollutionthebaijiafreshwaterdolphinnativetoChinawasdeclaredextinctmeaningit’sunlikelythepopulationcanrecover.Evennoisepollutionfromhumanactivitiescanleadtothedisorderofanimalbehavior.Anothercausethatmakesanimalsbecomeendangeredisover-fishingorover-hunting.Over-huntingwhalesledtonearextinctionofmanyspeciesofwhales.Theintroductionofanon-nativespeciestoahabitatmaymakeanimalsbecomeendangereD.Thenativespeciesmaynotdefendagainstanewoneandtheeffectscanbedangerous.InAustraliatheintroductionofthecommonhousecatledtotheextinctionofthered-frontedparakeetandhasseriouslydamagedthepopulationsofseveralsmallanimals.Introducedspeciescanalsobringnewdiseaseswiththem.AsaresultanimalsbecomeendangereD.Nativeanimalsmaynothavethepowertofightagainstnon-nativediseasesandpopulationlevelscansuffer.Anothercauseofdiseaseishuman-introducedchemicals.TheuseofDDTisbelievedtobeoneoftheleadingcausesindrivingtheCaliforniaCondortonearextinction.WhenanimalsbecomeendangeredtheentirefoodchaincanbeaffecteD.Forexamplein2008diseaseseriouslyharmedthehoneybeewhichislargelyresponsibleforpollinating授花粉plantsincludingmanyfruitsandvegetables.WithouttheirpollinationaverylargepartofthehumandietcouldbereduceD.Infactifthehoneybeeshouldbecomeextinctourlifewouldbeaffectedandbillionsofdollarswouldbelost.Thereforemanypeoplearguethatwhenanimalsbecomeendangereditisinman’sownself-interesttoprotectthem.61.Thepassageismainlyabout______.A.waysofprotectinganimals’habitatsB.effectscausedbyspeciesendangermentC.dangersofbringinginnon-nativespeciesD.reasonswhyanimalsbecomeendangered62.Whichofthefollowingexamplesshowsthatenvironmentalpollutionmaycausespeciesendangerment?A.Theextinctionofthewhales.B.Theextinctionofthered-frontedparakeet.C.Thedecreasingpopulationofthedolphin.D.Theeffectofthehoneybeeonthehumandiet.63.Whyisitdangeroustointroduceanon-nativespeciestoahabitat?A.Nativespeciesarelikelytodiefromthenewdiseases.B.It’shardfornon-nativespeciestosurvivE.C.Non-nativespecieswilltakeupmorespacE.D.Nativespeciesaresopowerfulfornon-nativespecies.64.TheCaliforniaCondorisindangerofdyingoutbecauseof______.A.lossofhabitatB.harmfulchemicalsC.forestcuttingD.unfamiliardiseases65.Wecaninferfromthelastparagraphthat______.A.humansaretoblameforspeciesextinctionB.smallanimalsmeanlittletothewholefoodchainC.protectionofthehoneybeehascostbillionsofdollarsD.humansprotectanimalsforthebenefitofthemselves

DeathValleyisalandofbeautifulyetdangerousextremes.DeathValleycanbedangerouslycoldduringthewintermonths.StormsinthemountainscanproducesuddenfloodingontheflooroftheValley.Theairtemperatureduringthesummerhasbeenashighasfifty-sevendegreesCelsius.Thesuncanheatthegroundsothatthetemperatureoftherocksandsoilcanbeashighasseventy-fourdegreesCelsius.DeathValleycontainsevidenceofseveralancientvolcanoesthatcausedhugeexplosions.EvidenceofoneoftheseexplosionsiscalledUbehebeCrater.Theexplosionleftahugeholeinthegroundalmostakilometerandahalfwide.InmanyareasofDeathValleyitiseasytoseewherethegroundhasbeenpushedupviolentlybymovementdeepintheEarth.Thismovementhascreatedunusualandbeautifulrockformations.Somearered.Othersaredarkbrowngrayyelloworblack.Theareawasnamedbyawomanin1849.ThousandsofpeoplefromotherpartsofthecountrytraveledLothegoldminingareasinCalifornia.TheyWereinahurrytogettherebeforeotherpeopledid.OnegrouptryingtoreachCaliforniadecidedtotakeapathcalledtheOldSpanishTrail.ByDecembertheyhadreachedDeathValley.Theydidnothavetosurvivetheterribleheatofsummerhuttherewasstillanextremelackofwater.Therewerefewplantsfortheirworkanimalstoeat.ThepeoplecouldnotfindapassthroughthecallmountainstothewestoftheValleySlowlytheybegancosufferfromalackoffood.TosurvivetheykilledtheirworkanimalsforfoodandbegantowalkoutoftheValley.AstheyleftoneWomanlookedbackandsaidGood-byedeathvalley.Thenamehasneverbeenchanged.AlmosteveryonewhovisitsDeathValleyvisitsahugehousecalledScotty'sCastle.ThebuildingdesignisSpanishwithhighthickwallstoprovideprotectionfromthefierceheat.ThecastleisnamedforWalterScottcalledScotty.byhisfriends.Hewasagoldminer.HetoldeveryonethathebuiltthehousewithmoneyhemadefromhisgoldmineManypeoplebelievedhim.Butitwasnotreallythetruth.13.ThefirsttwoparagraphsdiscussDeathValley's.A.geographyB.climateC.locationD.Size14.ThewomanwhonamedDeathValleyintendedto.A.explorethemysteryofthevalleyB.findanareawithplantsforanimalsC.experiencetheterribleheatofsummerD.lookforgoldinCalifornia15.Ifthepassagecontinuesitwillbeabout.A.thetruthaboutScotty'sCastleB.whySpanishbuiltthecastleC.whenthecastlewasbuiltD.wherethecastleliesin

Usingtoomuchwaterorthrowingrubbishintoourriversareclearwaysthathumanscanputourwatersupplyindangerbutwealsoaffectourwatersupplyinlessobviousways.Youmaywonderhowpaving铺砌aroadcanleadtolessuseablefreshwater.A.majorpartofthewaterweuseeverydayisgroundwater.Groundwaterdoesnotcomefromlakesorrivers.ItcomesfromundergrounD.Themoreroadsandparkinglotswepavethelesswatercanflowintothegroundtobecomegroundwater.Humanactivityisnotresponsibleforallwatershortages短缺.Drierclimatesareofcoursemorelikelytohavedroughts干旱thanareaswithmorerainfallbutinanycasegoodmanagementcanhelptomakesurethereisenoughwatertomeetourbasicneeds.Thinkingaboutthewayweusewatereverydaycanmakeabigdifferencetoo.IntheUnitedStatesafamilyoffourcanuse1.5tonsofwateraday!Thisshowshowmuchwedependonwatertolivebutthere’salotwecandotolowerthenumber.YoucantakestepstosavewaterinyourhomE.Tostartwithusethesameglassforyourdrinkingwaterallday.Washitonlyonceaday.Runyourdishwasher洗碗机onlywhenitisfull.Helpyourparentsfixanyleaks裂缝inyourhomE.Youcanevenhelptokeepourwatersupplycleanbyrecyclingbatteriesinsteadofthrowingthemaway.72.Whichofthefollowingismostlikelytoleadtolessgroundwater?A.Usingriverwater.B.Throwingbatteriesaway.C.Pavingparkinglots.D.Throwingrubbishintolakes.73.Whatcanbeinferredfromthetext?A.Allwatershortagesareduetohumanbehavior.B.Ittakesalotofefforttomeetourwaterneeds.C.ThereismuchwecandotoreducefamilysizE.D.TheaveragefamilyinAmericamakesproperuseofwater.74.Thelastparagraphisintendedto______.A.showushowtofixleaksathomeB.tellushowtorunadishwasherC.provewhatdrinkingglassisbestforusD.suggestwhatwedotosavewaterathome75.Thetextismainlyabout______.A.whypavingroadsreducesourwaterB.howmuchwedependonwatertoliveC.whydroughtsoccurmoreindryclimatesD.howhumanactivityaffectsourwatersupply

MostanimalshavelittleconnectionwithanimalsofadifferentkindunlesstheyhuntthemforfooD.Sometimeshowevertwokindsofanimalscometogetherinapartnership伙伴关系whichisgoodforbothofthem.Youmayhavenoticedsomebirdssittingonthebacksofsheep.Thisisnotbecausetheywantaridebutbecausetheyfindeasyfoodintheparasites寄生虫onsheep.Thesheepallowthebirdstodosobecausetheyremovethecauseofdiscomfort.Soalthoughtheycanmanagewithouteachothertheydobettertogether.Sometimesanimalhasaplantpartner.Therelationshipdevelopsuntilthetwopartnerscannotmanagewithouteachother.Thisissointhecorals珊瑚oftheseA.IntheirskinstheyhavetinyplantswhichactasdustmentakingsomeofthewasteproductsfromthecoralandgivinginreturnoxygenwhichtheanimalneedstobreathE.IftheplantsarekilledorareevenpreventedfromreceivinglightsothattheycannotlivenormallythecoralswilldiE.63.Somebirdsliketositonasheepbecause_______.A.theyenjoytravellingwiththesheepB.theycaneatitsparasitesC.theydependonthesheepforexistenceD.theyfindthepositionmostcomfortable64.Theunderlinedwordtheyinthelastsentenceofthefirstparagraphrefersto______.A.birdsandparasitesB.parasitesandsheepC.birdsandsheepD.sheepbirdsandparasites65.Welearnfromthetextthatcoralsdependonplantsfor______.A.comfortB.lightC.oxygenD.food66.Whatdoesthesecondparagraphmainlydiscuss?A.Someanimalsandplantsdeveloptheirrelationshipeasily.B.SomeanimalsandplantsdependoneachotherforexistencE.C.SomeplantsdependoneachotherforfooD.D.Someanimalslivebettertogether.

Aresomepeopleborncleverandothersbornstupid?Orisintelligencedevelopedbyourenvironmentandourexperience?Strangelyenoughtheanswertothesequestionsisyes.TosomeextentourintelligenceisgiventousatbirthandnoamountofeducationcanmakeageniusoutofachildbornwithlowintelligencE.Ontheotherhandachildwholivesinaboringenvironmentwilldevelophisintelligencelessthanonewholivesinrichandvariedsurroundings.Thusthelimitsofperson’sintelligencearefixedatbirthwhetherornothereachesthoselimitswilldependonhisenvironment.Thisviewnowheldbymostexpertscanbesupportedinanumberofways.Itiseasytoshowthatintelligenceistosomeextentsomethingwearebornwith.ThecloserthebloodrelationshipbetweentwopeopletheclosertheyarelikelytobeintelligencE.Thusifwetaketwounrelatedpeopleatrandomfrompopulationitislikelythattheirdegreeofintelligencewillbecompletelydifferent.Ifontheotherhandwetaketwoidenticaltwinstheywillveryprobablybeasintelligentaseachother.Relationslikebrothersandsistersparentsandchildrenusuallyhavesimilarintelligenceandthisclearlysuggeststhatintelligencedependsonbirth.Imaginenowthatwetaketwoidenticaltwinsandputthemindifferentenvironments.Wemightsendoneforexampletoauniversityandtheothertoafactorywheretheworkisboring.Wewouldsoonfinddifferencesinintelligencedevelopingandthisindicatesthatenvironmentaswellasbirthplaysapart.ThisconclusionisalsosuggestedbythefactthatpeoplewholiveinclosecontactwitheachotherbutwhoarenotrelatedatallarelikelytohavesimilardegreeofintelligencE.33.Thewriterisinfavoroftheviewthatman’sintelligenceisgiventohim____________.A.atbirthB.througheducationC.neitheratbirthnorthrougheducationD.bothatbirthandthrougheducation34.Ifachildisbornwithlowintelligencehecan_____________________.A.becomeageniusB.stillbecomeageniusifheshouldbegivenspecialeducationC.reachhisintelligencelimitsinrichsurroundingsD.notreachhisintelligenceinhislifE.35.Theexampleofthetwinsgoingtoauniversityandtoafactoryseparatelyshows_________.A.theimportanceoftheirintelligenceB.theimportanceoftheirpositionsC.theroleofenvironmentonintelligenceD.thepartthatbirthplays

Fromnowonneverspendyourprecioustimethinkingofreasonsforyourfailuresandshortcomings.Insteadrealizethattheseedsofsuccesswereplantedwithinyouwhenyouwereborn.Onlyyouhavethepowertomakethoseseedsgrow.TheseedsandthepowertogrowthemarecontainedinthemostawesomemachineevercreatedthehumanminD.SuccessisachoiceandnotachancE.Youwerebornawinner.Youwerebornrich.YoucanbeasuccessifonlyyoumaketherightchoicE.Youcannotbesuccessfulwithoutfirstdevelopingyourself-esteem.Yourlevelofself-esteemisalwaysbasedonthedegreeofcontrolthatyouareabletoexerciseoveryourselfandthusoveryourlifE.Peoplewithlowself-esteemarepeoplewhodonotbelievethattheyhaveanypowerorresponsibilityfortheirlives.Theyaretheperennial长期的victimsandmartyrs殉道者.Theyareleavestossed摇摆bythewindsofchanceblownaboutwithanysuddenchangeintheweather.YoucanexercisecontroloveryourlifeonlytothedegreethatyoubelievethatyouareresponsibleforeverythingthathappensinyourlifE.FailuresthinkthateverythinghappensbyaccidentandchancE.SuccessfulpeoplerealizethattheyareresponsiblE.Everythinghappensasaresultofsomething.Ifwecanidentifythecausewecancontroltheeffect.WeareresponsibleforwhatwechoosetothinkandbelievE.Onegenerallyrisestothelevelthatoneexpects.Weareresponsibleforsettingourexpectations.OursuccessisdependentuponourlevelofconfidencE.Ifyouassociatewithpositive-thinkingpeopleyouaredefinitelygoingtoachievesuccess.Onthecontrarytheoppositehappens.Weareresponsibleforfindingplantingandnurturingtheseedsthatcontainfuturevictorybornfromsetbacks.InshortinallareasofyourlifewhethertheybefinancialphysicalemotionalorspiritualyouareresponsiblE.Onceyourecognizethisacceptitandfirmlybelieveityouareontheroadtosuccess.66.Peoplewithlowself-esteemarecomparedtoleavesbecausethey______.A.can’texercisecontroloverthemselvesB.arereadytochangetheirmindsC.don’thavethepowertofacetheirfateD.areeasilyaffectedbywindyweather67.Loserswouldthinkthat______.A.successistheresultofhardworkB.theirfailureisonlybecauseofbadluckC.workinghardwillleadtosuccessD.theydon’tmakeeffortstosucceed68.Itcanbeinferredfromparagraph5that______.A.settingourexpectationsisessentialbeforetakingactionB.developingconfidenceisthekeytofuturesuccessC.thoughtsandbeliefsaretheresultofcreativemindD.whetherwewillsucceeddependsonourattitudes69.Thelastparagraphservesas______.A.theproofoftheauthor’spointsB.anintroductiontoanothertopicC.theconclusionoftheargumentD.acomparisonbetweentwoviews70.Whichisthebesttitleforthetext?A.DevelopourconfidencE.B.Thesecretsofsuccess.C.Howtoachievesuccess.D.SuccessisachoicE.

Plantcloninghasbeenanagriculturaltechniqueusedbyfarmersandgardenersforcenturies.Grafting嫁接isacommonformofplantcloning.Manyplantsinnatureactuallyclonethemselvesandreproduceasexually.Clonedplantsaremuchmorepredictablethannormalplantssotheiryield产量ismorereliablE.Clonedplantsalsoreproducefasterlimitingtheamountoftimebetweenplantingandharvesting.Itisalsooftencheapertoproduceseedsthroughcloningthanthroughtraditionalmethods.PlantscanessentiallybeoptimizedsothatfarmersorindividualgrowersalwayshavethebestseedsavailablE.Withmoreyieldatafasterratefarmscanproducemorefoodformorepeoplewhiledecreasingoverallcosts.Cloningcanbeusedtowipeoutdiseasesthatpreviouslykilledoffentirefieldsofcrops.Thiswouldmakeplantsimmune免疫的tothekindsofdiseasesthatfarmersandgardenersaroundtheworldfeareachyear.Cropfailuresduetodiseaseandviruscouldbecomeathingofthepast.Alsoplantsthatarenearextinctioncanbebroughtbacktolifethroughcloning.Throughcloningscientistscandevelopsuperfruitsandvegetablesofsuperiornutritionalquality.Thiscouldmakeforahealthierpopulationoverall.Thisisalreadybeingdonethroughselectivepollination授粉andgeneticcloningcouldtakeittothenextlevel.ByplantcloningwehaveapopulationofidenticalplantsandalltheseplantsequallysufferfromthesamediseasesbutinnaturetheweakwoulddieandthestrongwouldsurvivE.Whiletherearesomedangerstoconsiderwithplantcloningthereareplentyofbenefitsthatcouldprovevitaltothepropagation繁衍ofthehumanspecies.67.TheunderlinedwordoptimizedinParagraph2canbereplacedby____.A.enlargedB.producedC.perfectedD.examined68.Accordingtothetextclonedplants.A.haveloweryieldthannormalplantsB.needlittlecarefrompeopleC.resistallkindsofdiseasesD.haveashortgrowthcycle69.Whatcanweinferfromthetext?A.Thefruitsproducedbyclonedplantstastemuchbetter.B.Therearemoreclonedplantsthannormalplants.C.PlantcloningcandisturbthelawsofnaturE.D.Peopleshouldavoideatingclonedfruits.70.Whatisthemainpurposeofthetext?A.Towarnthenegativeeffectsofplantcloning.B.Topresentdifferentkindsofplantcloning.C.Topredictthefutureofplantcloning.D.Toinformusabouttheadvantagesofplantcloning.

SeaLifeMelbourneAquarium水族馆Theall-newSeaLifeMelbourneAquariumsituatedintheheartofMelbourne’sCBDisoneofVictoria’sleadingvisitorattractionsandanunforgettableoutingforthewholefamily.Having12amazingzonesofdiscoverySeaLifeMelbourneAquariumistheveryplacethatyoucannotmisswhenyouvisitthecity.*OpeningTimesSeaLifeMelbourneAquariumisopenfrom9:30amuntil6:00pmeverydayoftheyearincludingpublicholidays.Lastadmissionisat5:00pmonehourbeforeclosing.*Location位置SeaLifeMelbourneAquariumislocatedonthecornerofFlindersStreetandKingStreetMelbournE.ItissituatedontheYarraRiveroppositeCrownEntertainmentComplex.*GettingtoSeaLifeMelbourneAquariumTrainTheSeaLifeMelbourneAquariumtrainstopislocatedonthefreeCityCircleTramroute公交线路andalsoroutes70and75.CityCircletramsrunevery10minutesinbothdirections.ShuttleBusTheSeaLifeMelbourneAquariumisafreebusservicestoppingatkeytouristattractionsinandaroundtheCity.Runningdailyevery15minutesfrom10:00amto4:00pm.CarParkingWhilethereisnopubliccarparkingatSeaLifeMelbourneAquariumthereareseveralpubliccarparkinglotsavailableonlyashortwalkaway.*WheelchairAccessSeaLifeMelbourneAquariumprovidespeopleinwheelchairswithfullaccesstoall12zones.Eachflooralsohaswheelchairaccessibletoilets.*TermsTicketswillbeemailedtoyouimmediatelyafterpurchaseoryoucandownloadandprintyourticketoncepaymenthasbeenaccepteD.PleaseprintoutallticketspurchasedandpresentatthefrontentranceofSeaLifeMelbourneAquarium.Noticketnoentry!21.SeaLifeMelbourneAquarium_________.A.has12mostattractiveplacesinMelbourneB.admitsvisitorsfrom9:30amuntil6:00pmC.islocatedatthecenteroftheCBDinthecityD.isbesideCrownEntertainmentComplex22.GettingtoSeaLifeMelbourneAquariumvisitorscantake________.A.eithertramroute70or75B.trainsfromsouthernCrosstrainstationC.shuttlebusesaroundthetrainstationD.boatsacrosstheyarraRiver23.SeaLifeMelbourneAquariumoffersvisitors________.A.freecarparkingB.InternetconnectionC.transportationserviceD.wheelchairaccess24.TicketstoSeaLifeMelbourneAquarium________.A.arecheckedattheentranceB.arefreetoallvisitorsC.canbepurchasedbyemailD.canbeprintedattheticketoffice

AstherailroadsandthehighwaysshapedtheAmericanWestinthepastcenturiesanewelectricalgenerating发电andtransmission输送systemforthe21stcenturywillleavealastingmarkontheWestforbetterorworsE.Muchoftherealsignificanceofrailroadsandhighwaysisnotintheirdirectphysicaleffectonthescenerybutinthewaysthattheyaffectthesurroundingcommunity.ThesameistrueofbigsolarpantsandthepowerlinesthatwillbelaiddowntomoveelectricityarounD.The19thcenturysawlandgrants政府拨地offeredtorailroadcompaniestobuildthetranscontinentalrailroadsleavingpubliclandinbetweenprivatelyownedland.Inmuchofthewestsomeoftherailroadsectionsweredevelopedwhileothersremainedundevelopedandinbothcasesthelandownershiphaspresenteduniquechallengestolandmanagementwiththecompletionortheinterstatehighwaysystemmanyofthesmalltownswhichsprangupasrailwaystopsanddevelopedwellhavelosttheirlifebloodanddied.Bigsolarplantsandtheirpowerlineswillalsohaveeffectsfarbeyondtheirdirectfootprintinthewest.thisisnotanargumentagainstbuildingthenweneedalternativeenergybadly.andtoreallytakeadvantageofitweneedtobeabletomoveelectricityaroundfarmorereadilythanwecannow.Sotrade-offswillhavetobemade.somescenicsportwillbesacrificed.somespecies物种willbeforcedtomoveorwillbecarefullymovedtospecialaccommodationsdealswillbestrucktoreducetheimmediateeffects.Thelastingeffectsofthesetrade-offsareanothermatter.the21stcenturydevelopmentoftheAmericanwestasanidealplaceforalternativeenergyisgoingtothrowoffalotofpowerandmoneytodoalotofgood.butitisjustaslikelythattheywillbespentwastefullyandwillleavenewproblemsbehindjustliketherailroadandthehighway.Themoneysetasideinnegotiatedtrade–offsandtheinstitutionthatcontrolwillshapethewestfarbeyondtheimmediatefootprintofpowerplantsandtransmissionlines.solet’sremembertheeffectsoftherailroadandthehighwaysasweconstructthesenewpowerplantsinthewest.1.Whatwastheproblemcausedbytheconstructionoftherailways?A.smalltownsalongtherailwaysbecameabandoneD.B.somerailroadstopsremaineD.C.landinthewestwashardtomanagE.D.landgrantswentintoprivatehands.2.Whatisthemajorconcerninthedevelopmentofalternativeenergyaccordingtothelasttwoparagraphs?A.thetransmissionofpowerB.theuseofmoneyandpowerC.theconservationofsolarenergyD.theselectionofanidealplace3.Whatistheauthor’sattitudetowardsbuildingsolarplants?A.cautiousB.approvingC.doubtfulD.disapproving4.Whichisthebesttitleforthepassage?A.howtherailwayshaveaffectedthewestB.howsolarenergycouldreshapethewestC.howtheeffectsofpowerplantscanbereduced

Pierreisa25-year-oldpenguinattheCaliforniaAcademyofSciences.Duetohisoldagehewasgoingbald.whichmadehimfeeltoocoldtoswiminthepool.Thereforebiologistsattheacademyhadawetsuitcreatedforthispenguintohelphimgetbackintheswimmingpool.Unlikemarine海生的mammalswhichhavealayerofblubber鲸脂tokeepthemwarmpenguinsdependontheirwaterprooffeathers.WithoutthemPierrewasunwillingtojumpintotheswimmingpoolandendeduptremblingonthesideofthepoolwhilehis19peersplayedinthewater.HewascoldhewouldshakesaidPamSchalleraseniorbiologist.SchallerfirsttriedaheatlamptokeepPierrewarm.ThenshegotanotherideaifwetsuitskeephumanswarminthecoldPacificwhynotmakeoneforPierre?SchallerdesignedthesuitwhichcoveredPierre’Sbodyandhadsmallopeningsforhisflippers.Iwouldwalkbehindhimandlookatwheretherewereanygaps.andcuthndrefitandcutandrefituntilitlookedlikeitwasextremelysuitable.shesaid.OneconcernwasthattheotherpenguinswouldrejectPierreinhisnewsuitbutinfacttheyacceptedhisnewlook.Heswamfreelyandgotalongwithotherswellalthoughhewastheonlypenguinwithablackstomach.Schallercouldn’tsayforsurewhetherthewetsuitallowedPierretorecoverhisfinefeathersbutcertainlywewereabletokeephimcomfortableduringaperiodoftimethatwouldhavebeenverydifficultforhimtostaycomfortable.Pierrewilltakeoffhissuitafterhisnewfeathersgrowback.41.Pierrefelttoocoldtoswiminthepoolbecauseof____.A.nothavingalayerofblubberB.havingfewfeathersduetooldageC.havingnowetsuitD.otherspenguinsrejectinghim42.TheideaofmakingawetsuitforPierrecamefrom__________.A.totalinventionB.theuseofwetsuitonhumansC.theuseofheatlampD.waterprooffeathers.43.SchallerfollowedPierreinordertosee____________________.A.whetherotherpenguinswouldrejecthimB.ifanywhereofwetsuitneededtobecutandrefitC.ifthewetsuitkeptwarmD.whetherthewetsuitwouldkeepthefeathersfromrecovering44.Whatdoestheunderlinedwordinthesecondparagraphmean?A.feelingscaredB.stayingaloneC.shakingwithcoldD.feelingembarrassed45.Thebesttitleofthepassageis____.A.WetsuitforAnoldPenguinB.OldPenguinGettingBaldC.UnwillingtoSwimD.StrangeLookofPierre

Eatlikeakinginthemorningaprinceatnoonandapeasantatnight.Thissayingisallabouttheimportanceofbreakfast.Andnowscientistscantellusjustwhyit’ssoimportant.AccordingtoastudycarriedoutatImperialCollegeLondonUKskippingthefirstmealofthedaynotonlymeansyoueatmoreatlunchbutalsothatyourbrainwantstofindmoreunhealthyfoods.Thestudysuggeststhatthereisaspecialpartofourbraincalledtheorbitofrontalcortex眶额皮层whichplaysanimportantpartinmakingchoicesaboutwhatweeat.Itisusedforidentifyingthetasteoffoodespeciallywhenskippingbreakfast.Itismorelikelytotargethigh-caloriefoodswhenyou’reonanemptystomach.Scientistsdidanexperimentonthis.DrTonyGoldstonefromImperialCollegeLondonscanned扫描thebrainsof21menandwomenaroundtheageof25.Onthefirstdaythesepeopleskippedbreakfastbeforethescans.Ontheseconddaytheyhadcereal谷物breadandjamasbreakfast.Afterthescanonbothdaystheyhadtheirlunch.Whenthevolunteershadskippedbreakfasttheyatearound20percentmoreatlunchcomparedwithdayswhentheyhadeatenbreakfast.Theirbrainscansalsoshowedtheorbitofrontalcortexwasespeciallyresponsivetohigh-caloriefoods.Webelievethatbitidentifiesthevalueoffoods–howpleasanthowdelicioussomethingisGoldstonetoldTheGuardian.36.FromParagraph1welearnthat_____.A.scientistsfoundoutwhyeatingbreakfastisimportantB.it’seasytoloseweightwithoutbreakfastC.there’snoneedtohavegoodfoodforsupperD.eatingbreakfastmakesyourbrainsmarter37.WhichofthefollowingisNOTtrueabouttheorbitofrontalcortex?A.Itispartofourbrain.B.Ittellspeopletoeatbreakfast.C.ItdecideswhichfoodwelikE.D.Itisactivetowardhigh-caloriefooD.38.Whichisthecorrectorderfortheexperimentonthefirstday?①Thevolunteersskippedbreakfast.②Thevolunteershadlunch.③Thevolunteershadabrainscan.A.①②③B.③②①C.①③②D.③①②39.Intheexperimentthevolunteerswithoutbreakfastateabout20%_____atlunch.A.oftheusualbreakfastB.morethantheusualbreakfastC.oftheusuallunchD.morethantheusuallunch40.Whichofthefollowingcanbethetitleforthispassage?A.BreakfaststillmostimportantB.ThreemealsadayC.ExperimentsonbreakfastD.Experimentsonlunch

Weeachhaveauniquegenetic基因的遗传的make-up.Everycellofyourbodyhasthesamesetofabout100000separategenesmadeofDNA.Thesearetheinstructionsforproducingaperson.Genesdecideeverythingfromthecolourofyourskintothewayyourbrainworks.YouhaveoneofseveralbillioncombinationsofDNAwhichcomefromtherandom随机的任意的mixingofyourparents’genes.Exceptforidenticaltwins同卵双胞胎noonehasthesamecombinationasanotherperson.Youareunique!Youareuniqueinanotherwaytoo:inthewayyouareraisedandalltheexperiencesyouhavefrombeforebirthtoadultlifE.TheseexperiencesinfluenceyouyourbehaviourandattitudesandthechoicesyoumakE.Butaregenesorlifeexperiencesmoreimportantinshapingyourappearanceandpersonality?Scientistsarestudyingtwinstofindout.Onesetoftwinsoccursevery70births---someareidenticalandothersarenon-identicaltwins.Identicaltwinsarespecialbecausetheyshareexactlythesamegenesandoftenthesameenvironment.Non-identicaltwinsaremorelikeordinarybrothersandsisters.Someidenticaltwinshavebeenadoptedandbroughtupindifferenthomes.Withidenticalgenesbutadifferenthomeenvironmentscientistscanstudytwinstoseehowmuchaparticularfeaturedependsonthegenesweinherit.Forexampleweknowthateyeproblemslikeshort-sightednessaremostlygenetiC.Butresistancetopainislargelydependentonexperiences.Genesalsoinfluenceoureatinghabits.Identicaltwinsbroughtupapartoftenliketoeatatthesametimeofdayandfeelfullaftereatingthesameamount.Non-identicaltwinsinsimilarcircumstanceshavemorevariedeatinghabits.Identicaltwinsarealsomorelikelytofollowthesamepatternsformarriageanddivorcethannon-identicaltwins.Scientistsaretryingtoidentifythedifferentgenesthatinfluenceourbehaviour.Somepeoplearethrill-seekersandgetintorisk-takingandadventurousactivities.Theytakeupextremesportslikebungeejumpingandpossiblytakedrugs.Scientistshavediscoveredagenewhichaffectsthis.WecouldaskAreourlivesdeterminedbyourgenesorourupbringing?ScientistsarelearningmoreallthetimebutitiscertainlytruethatbothareimportantinmakinguswhowearE.76.Whatisthemainideaofthefirstparagraph?A.WecannoteasilychangeourphysicalappearancE.B.Howweturnoutdependsonourparents’genes.C.EveryonehasaphysicaldoublesomewhereintheworlD.D.BothourgenesandourexperiencesmakeuswhowearE.77.Whyarescientistsstudyingtwins?A.Tofindouthowmanytwinsareborneveryyear.B.Todiscoverwhatshapesusasindividuals.C.Tocomparedifferencesbetweentwins.D.Tostudybrother-and-sisterrelationships.78.Accordingtothepassage__________.A.onein70twinsaregeneticallyidenticalB.non-identicaltwinsareusuallynotofthesamesexC.twinsseparatedatbirthbehaveexactlythesameD.identicaltwinsaregeneticallythesame79.Whichofthefollowingismostaffectedbyexperienceaccordingthepassage?A.Eatinghabits.B.Eye-sight.C.PainresistancE.D.Marriagepatterns.80.WhatdoestheunderlinedthisinParagraph4referto?A.Ourloveofsport.B.Ourattitudetorisk-taking.C.Ourskillatbungeejumping.D.Ourabilitytotakedrugs.

InaworldwithlimitedlandwaterandothernaturalresourcestheharmfromthetraditionalbusinessmodelisontherisE.Actuallythepastdecadehasseenmoreandmoreforestsdisappearingandtheglobebecomingincreasinglywarm.Peoplenowrealizethatthisunhealthysituationmustbechangedandthatwemustbeabletodevelopinsustainableways.Thatmeansgrowthwithlowcarbonordevelopmentofsustainableproducts.Inotherwordsweshouldkeepthehealthywhileusingitssupplyofnaturalresources.Todaysustainabledevelopmentisapopulartrendinmanycountries.Accordingtoarecentstudytheglobalmarketforlow-carbonenergywillbecomethreetimesbiggeroverthenextdecadE.Chinaforexamplehassetitsmindonleadingthatmarkethopingtoseizechancesinthenewroundoftheglobalenergyresolution.Itisnowtryinghardtomadefulluseofwindandsolarenergyandisspendingahugeamountofmoneymakingelectriccarsandhigh-speedtrains.Inadditionwearealsoseeinggreatgrowthintheglobalmarketsforsustainableproductssuchaspalmoil棕榈油whichisproducedwithoutcuttingdownvaluablerainforest.Inrecentyearsthemarketsforsustainableproductshavegrownmorethan50%.Governmentscanfullydevelopthepotentialofthesenewmarkets.Firsttheycansethightargetsforreducingcarbonemissions排放andtargetsforsavingandreusingenergy.Besidesstrongerarrangementofpublicresourceslikeforestscanalsohelptospeedupthedevelopment.FinallygovernmentscanavoidthehugepublicexpensesthataretakingusinthewrongdirectionandredirectingsomeofthoseexpensescanacceleratethechangefromthetraditionalmodeltoasustainableonE.Themajorchallengeofthiscenturyistofindwaystomeettheneedsofagrowingpopulationwithinthelimitsofthissingleplanet.Thatisnosmalltaskbutitoffersabundantnewchancesforsustainableproductindustries.16.ThetraditionalbusinessmodelisharmfulbecauseofallthefollowingEXCEPTthat____.A.itmakestheworldwarmerB.itconsumesnaturalresourcesC.itbringsseveredamagetofutureD.itmakesgrowthhardtocontinue17.WhatcanweinferfromParagraph2?A.Chinalackswindandsolarenergy.B.Chinaistheleaderofthelow-carbonmarket.C.High-speedtrainsarealow-carbondevelopment.D.Palmoilismadeatthecostofvaluableforests.18.Tofullydevelopthelow-carbonmarketsgovernmentscan______.A.cutpublicexpensesB.forbidcarbonemissionsC.developpublicresourcesD.encourageenergyconservation19.Wecanlearnfromthelastparagraphthatbusinesseshavemanychancesto_______.A.developsustainableproductsB.explorenewnaturalresourcesC.makefulluseofnaturalresourcesD.dealwiththemajorchallenge20.Whatisthemainpurposeofthepassage?A.TointroduceanewbusinessmodelB.TocomparetwobusinessmodelsC.TopredictachangeoftheglobalmarketsD.Toadvocatesustainabledevelopment

Manypeoplefailtounderstandthesilentlanguageofcats.Inparticulardogpeoplewhoareusedtothesignsofdoglanguageseemslowtounderstandwhatacatistellingtheminitsbodylanguagewhichcreatesafalseimpressionamongdogpeoplethatcatsarecold-heartedunemotionalordumB.Tounderstandcatsonemustobservethemcloselyandlearnwhattheirbodysignalstellyou.Theflattenedearsteethshowingbaringbellyforsubmission服从areeasilyreadbyhumans.SomecharacteristicsignalshoweverareoftenmisunderstooD.ForinstanceacatrubbingitsbodyalonganarmoralegofitsownerisnotonlyawaytoattractattentionandperhapsaskforabitoffooD.Itisalsoawayofmarkingitsownerasitsveryown.64.A.catwithitstailheldhighandtwitchingisusuallymistakenfor_________.A.angerB.confidenceC.excitementD.comfort65.Dogpeoplethinkthatcatsarecold-heartedunemotionalordumbbecausethey_____.A.aremoreusedtothelanguagethatdogsspeakB.can’tunderstandthelanguagethatcatsuseC.areslowtounderstandacat’sbodylanguageD.prefertoraisedogsratherthanhavecats66.WhichofthefollowingisNOTthereasonwhyacatrubsitsbodyalongthearmorlegofitsowner?A.Toattractattentionfromitsowner.B.Toshowthecareaboutitsowner.C.ToaskitsownerforalittleoffooD.D.Tomarkitsownerasitsown.67.Whichofthefollowingwouldbethebesttitleforthepassage?A.StudyCatLanguageB.AnimalBodyLanguageC.CompareCatswithDogsD.A.Cat’sBodyLanguage

Bambooisoneofnature’smostsurprisingplants.Manypeoplecallthisplantatreebutitisakindofgrass.Likeotherkindsofgrassabambooplantmaybecutverylowtothegroundbutitwillgrowbackveryquickly.A.Japanesescientistreportedonebambooplantwhichgrew1.5metres4feetin24hours!BamboogrowsalmosteverywhereintheworldexceptEuropE.Therearemorethan1000kindsofbamboo.NotallbamboolooksthesamE.Somebambooplantsareverythin.Theymayonlygrowtobeafewcentimeterswidewhileothersmaygrowtomorethan30centimetres1footacross.Thisplantalsocomesindifferentcolorsfromyellowtoblacktogreen.Bamboohasbeenusedtomakemanythingssuchashatsandkitchentools.Becauseitisstrongbambooisalsousedtobuildbuildings.ManyAsiancountrieshaveusedbambooforhundredsofyears.Theyoftenusebambooforbuildingsandsupportingnewbuildingsandbridgeswhiletheyarebeingbuilt.InAfricapoorfarmersaretaughthowtofindwaterusingbamboo.TheseAfricancountriesneedcheapwaytofindwaterbecausetheyhavenomoneyandtheirfieldsoftendiefromnorainandnowater.Bamboopipeshelppoorfarmersbringwatertotheirthirstyfieldswithoutspendingalotofmoney.61.Howisbamboolikegrass?A.Itgrowsquickly.B.It’swooD.C.itiseasytocut.D.Itisverythin.62.Thoughyoucanseebambooeverywhereitdoesn’tgrow.A.inChinaB.inEuropeC.onmountainsD.inAfrica63.WhyisbamboousedbyAfricanpoorfarmers?Because.A.itisstrongB.ithasdifferentcoloursC.itischeapD.ithasbeenusedbyAsians

Satellitesareanimportantpartofourordinarylives.Forexampletheinformationforweatherforecastsissentbysatellite.SomesatelliteshavecameraswhichtakephotographsoftheEarthtoshowhowcloudsaremoving.Satellitesarealsousedtoconnectourinternationalphonecalls.ComputerconnectionsoftheWorldWideWebandInternetalsousesatellites.ManyofourTVprogramscometousthroughsatellites.Airplanepilotsalsosometimesuseasatellitetohelpthemfindtheirexactlocation.Weusesatellitestosendtelevisionpicturesfromonepartoftheworldtoanother.Theyareusually35880kilometersabovetheequator.Sometimeswecanseeasatelliteintheskyanditseemstostayinthesameplace.Thisisbecauseitismovingaroundtheworldat11000kilometersanhour—exactlythesamespeedthattheearthrotates.AsatellitemustorbittheEarthwithitsantennae天线facingtheearth.SometimesitmovesawayfromitsorbitSotherearelittlerocketsonitwhichareusedtoputthesatellitebackintherightposition.Thisusuallyhappensabouteveryfiveorsixdays.Spaceisnotempty!EveryweekmoreandmoresatellitesaresentintospacetoorbittheEarth.Asatelliteusuallyworksforabout10-12years.SatelliteswhicharebrokenaresometimesrepairedbyastronautsorsometimesbroughtbacktoEarthtoberepaired.OftenveryoldorbrokensatellitesareleftinspacetoorbittheEarthforaverylongtime.Thisisveryseriousbecausesomesatellitesusenuclearpowerandtheycancrashintoeachother.72.WhichofthefollowingisNOTdonebysatellitesaccordingtothepassage?A.Sendinginformationforweatherforecast.B.TakingphotographsoftheEarth.C.SendingTVpictures.D.Providingfoodforairplanepilots.73.What’sthespeedtheearthrotatesat?A.35880kilometersperhour.B.335880kilometersperhour.C.11000kilometersperhour.D.110000kilometersperhour74.WhatdoestheunderlinedwordThisinthe3rdparagraphreferto?A.Asatellite.B.Alittlerocket.C.Asatelliteseemstostayinthesameplaceinthesky.D.Thesatelliteputstherocketsintherightposition.75.Whichistrueofsatellites?A.Asatelliteusuallyworksforabout10-12years.B.EverytimeasatellitegetsbrokenitisbroughtbacktotheEarthtoberepaired.C.Abrokensatelliteisneverleftinspace.D.Theyoftencrashintoeachother.

InthesecondhalfofeachyearmanypowerfulstormsareborninthetropicalAtlanticandCaribbeanseas.Oftheseonlyaboutahalfadozengeneratethestrongcirclingwindsof75milesperhourormorethatgivethemhurricanestatusandseveralusuallymaketheirwaytothecoast.TheretheycausemillionsofdollarsofdamageandbringdeathtolargenumbersofpeoplE.Thegreatstormsthathitthecoaststartasinnocentcirclingdisturbances气旋hundreds—eventhousands—ofmilesouttoseA.Astheytravelaimlesslyoverwaterwarmedbythesummersuntheyarecarriedwestwardbythetradewinds.Whenconditionsarejustrightwarmmoist潮湿的airflowsinatthebottomofsuchadisturbancemovesupwardthroughitandcomesoutatthetop.Intheprocessthemoistureinthiswarmairproducesrainandwithittheheatthatisswitchedtoenergyintheformofstrongwinds.Astheheatincreasestheyounghurricanebeginstoturnaroundinacounter-clockwisemotion反时针方向.TheaveragelifeofahurricaneisonlyaboutninedaysbutitcontainsalmostmorepowerthanwecanimaginE.Theenergyintheheatreleased释放byahurricane’srainfallinasingledaywouldsatisfytheentireelectricalneedsoftheUnitedStatesformorethansixmonths.WaterratherthanwindisthemainsourceofdeathanddestroyinginahurricanE.A.typicalhurricanebrings6-to-12-inchdownpoursresultinginsuddenfloods.Worstofallisthepowerfulmovementofthesea—themountainsofwatermovingtowardthelow-pressurehurricanecenter.Thewaterlevelrisesasmuchas15feetabovenormalasitmovestowardshorE.43.Anordinarytropicalstormiscalledahurricanewhen______.A.itoccursintheCaribbeanseasB.itswindsreach75milesperhourC.itmakesitswaytothecoastlineD.itswindsbegintocircleonthesea44.Whatistheworstthingabouthurricane?A.Theroughwater.B.Theviolentwinds.C.Theheatitgivesout.D.ThelengthofitslifE.45.Whatdoesthethirdparagraphmainlytalkabout?A.Thehurricaneisextraordinarilypowerful.B.Thehurricaneisusedtogenerateelectricity.C.Thehurricanecanotherwiseofferanunusualsight.D.ThehurricanecangivepeopleanunforgettableexperiencE.46.Thecounter-clockwisemovementofthehurricaneiscausedby______.A.thelow-pressureareainthecenterofthestormB.theforceofwavesofwaterC.theincreasingheatD.thetradewinds

MostanimalshavelittleconnectionwithanimalsofadifferentkindunlesstheyhuntthemforfooD.Sometimeshowevertwokindsofanimalscometogetherinapartnership伙伴关系whichisgoodforbothofthem.Youmayhavenoticedsomebirdssittingonthebacksofsheep.Thisisnotbecausetheywantaridebutbecausetheyfindeasyfoodintheparasites寄生虫onsheep.Thesheepallowthebirdstodosobecausetheyremovethecauseofdiscomfort.Soalthoughtheycanmanagewithouteachothertheydobettertogether.Sometimesanimalhasaplantpartner.Therelationshipdevelopsuntilthetwopartnerscannotmanagewithouteachother.Thisissointhecorals珊瑚oftheseA.IntheirskinstheyhavetinyplantswhichactasdustmentakingsomeofthewasteproductsfromthecoralandgivinginreturnoxygenwhichtheanimalneedstobreathE.IftheplantsarekilledorareevenpreventedfromreceivinglightsothattheycannotlivenormallythecoralswilldiE.63.Somebirdsliketositonasheepbecause_______.A.theyenjoytravellingwiththesheepB.theycaneatitsparasitesC.theydependonthesheepforexistenceD.theyfindthepositionmostcomfortable64.Theunderlinedwordtheyinthelastsentenceofthefirstparagraphrefersto______.A.birdsandparasitesB.parasitesandsheepC.birdsandsheepD.sheepbirdsandparasites65.Welearnfromthetextthatcoralsdependonplantsfor______.A.comfortB.lightC.oxygenD.food66.Whatdoesthesecondparagraphmainlydiscuss?A.Someanimalsandplantsdeveloptheirrelationshipeasily.B.SomeanimalsandplantsdependoneachotherforexistencE.C.SomeplantsdependoneachotherforfooD.D.Someanimalslivebettertogether.

Witharound100studentsscheduledtobeinthat9amMondaymorninglectureitisnosurprisethatalmost20peopleactuallymakeittotheclassandonly10ofthemarestillawakeafterthefirst15minutes;itisnotevenasurprisethatmostofthemarestillintheirpyjamas睡衣.ObviouslystudentsareterribleatadjustingtheirsleepcyclestotheirdailyschedulE.Allhumanbeingspossessabodyclock.Alongwithotheralerting警报systemsthisgovernsthesleep/wakecycleandisthereforeoneofthemainprocesseswhichgovernsleepbehaviour.Typicallythepreferredsleep/wakecycleisdelayedinadolescentswhichleadstomanystudentsnotfeelingsleepyuntilmuchlaterintheevenings.Thistypicalsleeppatternisusuallyreferredtoasthenightowlscheduleofsleep.Thisisopposedtotheearlybirdscheduleandisakindofdisorderwheretheindividualtendstostayupmuchpastmidnight.Suchapersonhasgreatdifficultyinwakingupinthemornings.Researchsuggeststhatnightowlsfeelmostalertandfunctionbestintheeveningsandatnight.Researchfindingshaveshownthatabout20percentofpeoplecanbeclassifiedasnightowlsandonly10percentcanbeclassifiedasearlybirds-theother70percentareinthemiddlE.Althoughthisisclearlynottrueforallstudentsfortheoneswhoaretruenightowlsthisgivesthemanexcellentexcuseformissingtheirlectureswhichunfortunatelyfallbeforemidday.43.WhatdoestheauthorstressinParagraph1?A.Manystudentsareabsentfromclass.B.StudentsareverytiredonMondaymornings.C.Studentsdonotadjusttheirsleeppatternswell.D.StudentsarenotwellpreparedforclassonMondays.44.WhichofthefollowingistrueaccordingtoParagraph2?A.Moststudentsprefertogetuplateinthemorning.B.Studentsdon’tsleepwellbecauseofalertingsystems.C.One’sbodyclockgovernsthesleep/wakecycleindependently.D.Adolescents’delayedsleep/wakecycleisn’tthepreferredpattern.45.Whichofthefollowingisclosestinmeaningtotheunderlinedwordclassified?A.CriticiseD.B.GroupeD.C.OrganiseD.D.NameD.46.Whatdoesthetextmainlytalkabout?A.Functionsofthebodyclock.B.Thenightowlphenomenon.C.Humanbeings’sleepbehaviour.D.Theschoolscheduleofearlybirds.

Duringadolescence青春期peers同龄人playalargepartinayoungperson'slifeandtypicallyreplacefamilyasthecenterofateen'ssocialactivities.Somekidsgiveintopeerpressurebecausetheywanttobelikedorbecausetheyworrythatotherkidsmaymakefunofthemiftheydon'tgoalongwiththegroup.Othersmaygoalongbecausetheyarecurioustotrysomethingnewthatothersaredoing.Theideathateveryone'sdoingitmayinfluencesomekidstoleavetheirbetterjudgmentortheircommonsensebehinD.Aschildrengrowdevelopandmoveintoearlyadolescencecontactswithone'speersandtheattractionofpeeridentification认同increases.Aspre-adolescentsbeginrapidphysicalemotionalandsocialchangestheybegintoquestionadultstandardsandtheneedforparentalguidancE.Theyfinditgoodtoturnforadvicetofriendswhounderstand—friendswhoareinthesamepositionthemselves.Bytryingnewthingsandtestingtheirideaswiththeirpeersthereislessfearofbeinglaughedat.TherearetwolevelsofpeerpressurE.Thefirstisinthelargegroup:formostteensaschoolorayouthgroupareexamples.Thisisthesituationthatgetsthemostattention.Thesecondisinthecloserelationshipwithoneorseveralbestfriends.Thisisthesituationthatissometimesdisregarded.Thelargegroupputsageneralpressureonitsmembers.Itsetsthestandardforclothingmusicentertainmentandpoliticalcorrectness.Thepressurecanbeavoidedbykeepingquietorbyputtingontheappearanceofagreement.77.Whycan’tsomechildrenfollowtheircommonsense?A.Becausetheywanttobelikedbyeverybody.B.Becausetheydon’twanttomakefunofothers.C.Becausetheyarecuriousabouttheirnewfriends.D.BecausetheythinkallthechildrenwilldothesamE.78.Wheninpre-adolescencewhomaychildrenaskforsuggestions?A.ParentsB.TeachersC.FriendsD.Classmates79.Whichwordcanreplacetheunderlinedworddisregardedinthelastparagraph?A.unnoticedB.mentionedC.disagreedD.avoided80.Whatmightbediscussedinthefollowingparagraph?A.ThereasonsofpeerpressurE.B.TheadvantagesofpeerpressurE.C.Peerpressurefromclosefriends.D.Peerpressurefromayouthgroup.

Runninglikethewindroaring咆哮likethundertigershavelongbeenfearedandrespectedasakingoftheanimalworlD.Butlastweekareportsaidthattherearenomorethan30wildtigersleftinsouthChinA.ThiswastheconclusionofateamofscientistsfromChina'sStateForestryAdministrationandtheWorldNatureFunD.TheSouthChinatigeralsoknownastheChinesetigerisnativetosouthernChinA.Inthe1950'stherewereover4000tigersfoundinmountainforestsinthecountry.Butduetothedestructionoftheirnaturalhabitatanduncontrolledhuntingithasbeenpushedontothelistoftheworld'stoptenmostendangeredspecies.Sixty­sixofthebigcatscanbefoundinthecagesofadozenzoosaroundChinA.Buttheyarenothingliketheirwildcousins.Theyhavelosttheirnaturalskillssuchashuntingandkilling.Iftheyweresetfreetheycouldnotlookafterthemselves.BreedinghasdamagedthequalityofthespeciessaidPeiEnledeputydirectoroftheShanghaiZoo.ToreintroducethespeciesintothewildthecountrystartedaprogrammetosendfivetotenyoungtigerstoSouthAfricA.FourofthemhavealreadyarriveD.Progresshasbeenmadeastwoeldertigershaverecoveredsomeoftheirinstincts本能andcanhuntwildanimalsbythemselvesattheAfricanbasE.SouthAfricansareveryexperiencedinreintroducingbiganimalstothewilD.ThecountryhasverygoodnaturalconditionsforthetigerstolearninsaidLuJunofficedirectoroftheNationalWildlifeResearchandDevelopmentCenter.WetriedinFujianProvincebutitwasnotsuccessfulastherewasnotacompleteeco­chain生物链andtherewasalackofspacE.ThetigersshouldreturntoChinain2007whenthereservationsinFujianareready.61.WhatisthemainreasonfortheSouthChinatigerbecomingoneoftheworld'stoptenmostendangeredspecies?A.Becauseithaslostitsnaturalinstincts.B.Becausethereisnotacompleteeco­chain.C.Becausethereisnospaceforit.D.Becauseuncontrolledhuntinghasdestroyeditsnaturallivingconditions.62.HowistheprogrammeofsendingseveraltigerstoSouthAfricagettingon?A.Itseffectstillremainstobeseen.B.Twotigerscanalreadycompetewiththeirwildcousins.C.Someofthetigersarealreadyontheroadtorecoveringtheirnaturalskills.D.Thetigersshouldbeabletorecovertheirinstinctscompletelyby2007.63.Bysayingbuttheyarenothingliketheirwildcousinsthewritermeansthat________.A.theyarenolongerfearedbyotherwildanimalsB.theydon'tknowhowtohuntorkillC.acompletechangehasresultedinthespeciesbecauseofbreedingD.toreintroducethemintothewildhasbecomeanurgenttask64.WhatisthepurposeofsendingyoungtigerstoSouthAfrica?A.TohelpthetigersrecovertheirabilitytoliveinthewilD.B.Toprovidethemwithabetterenvironment.C.Togetthetigerstogoonatour.D.Tofindacompleteeco­chainforthem.65.WhichoneisNOTthereasonforSouthAfricabeingchosenasthetrainingplace?A.BecausethetigerscanhuntwildanimalsbythemselvesattheAfricanbasE.B.BecauseSouthAfricansareskilledatdealingwiththetigers.C.Becausethereisacompleteeco­chainandenoughspacetherE.D.Becausethecountryhasgoodnaturalconditionsforthetigerstolearnin.

Americanresearchersfoundfemalesarethemoretalkativesexbecauseofaspeciallanguageprotein蛋白质inthebrain.Thestudyconductedbyneuroscientists神经学家andpsychologistfromtheUniversityofMarylandconcludedthatwomentalkedmorebecausetheyhadmoreoftheFoxp2protein.TheresearchpublishedintheJournalofNeurosciencefoundthathigherlevelswerefoundamonghumansthatwerewomenbutinratsthatweremales.Theirfindingscameafteritwaspreviouslyclaimedthatladiesspeakabout20000wordsaday–over13000morethanmen.Thisstudyisoneofthefirsttoreportasexdifferenceintheexpressionofalanguage-associatedproteininhumansoranimalssaidProfMargaretMcCarthywholedthestudy.Intheirstudytheresearchersattemptedtodeterminewhatmightmakemaleratsmorevocalthantheirfemalefriends.Theyseparatedfour-day-oldratsfromtheirmothersandthencountedthenumberoftimestheycriedoutintheultrasonicrangethefrequencieshigherthanhumanscanhearoverfiveminutes.WhilebothsexescalledouthundredsofcriesthemalescalledouttwiceasoftentheyfounD.Butwhenthepupswerereturnedtotheirmother’scageshefussedoverhersonsfirst.TestsconductedonthepartsofthebrainknowntobeassociatedwithvocalcallsshowedthemalepupshaveuptotwiceasmuchFoxp2proteinasthefemales.Theresearchersthenincreasedtheproductioninthebrainsoffemalepupsandreduceditinmales.Thisledtothefemaleratscryingoutmoreoftenandtheirmothersshowingmoreinteresttothem.Incontrastmalesbecamelesstalkative.Theresearchersthentestedsamplesfromtenchildrenagedbetweenthreeandfivewhichshowedthatfemaleshadupto30percentmoreoftheFoxp2proteinthanmalesinabrainareakeytolanguageinhumans.BasedonourobservationsweassumehigherlevelsofFoxp2ingirlsandhigherlevelsofFoxp2inmaleratsisanindicationthatFoxp2proteinlevelsareassociatedwiththemorecommunicativesexsaidProfMcCarthy.OurresultsimplyFoxp2asacomponentoftheneurobiologicalbasisofsexdifferencesinvocalcommunicationinmammals.41.Fromthesecondparagraphwecanlearnthat________.A.womenalwaysspeakmorewordsthanmenB.menandmaleratshavelowlevelsoflanguageproteinC.womenandmaleratshavesimilarlevelsofFoxp2D.McCarthyisn’tthefirsttofindfemalesmoretalkative42.Theunderlinedphrasefussedoverinthethirdparagraphprobablymeans______.A.paidattentiontoB.relatedtoC.putpressureonD.countedon43.Theresearcherscarriedouttheexperimentsonratsinorderto_______.A.testwhichpartofthebrainiskeytolanguageinratsandhumansB.provethelevelsofFoxp2proteininhumansandratsaredifferentC.determinethereasonwhyfemaleratsaremoretalkativethanmaleratsD.discovertheassociationbetweenFoxp2proteinandvocalcommunication44.Whichofthefollowingcanbethebesttitleforthepassage?A.TestsonhumansandratsB.WhywomenarethetalkativesexC.SexdifferencesinFoxp2proteinD.Foxp2proteindeterminesoralability

Owningasmartphonemaynotbeassmartasyouthink.TheymayletyousurftheInternetlistentomusicandsnapphotoswhereveryouarebuttheyalsoturnyouintoaworkaholicitseems.A.studysuggeststhatbygivingyouaccesstoemailsatalltimestheall-singingall-dancingmobilephoneaddsasmuchastwohourstoyourworkingday.ResearchersfoundthatBritonsworkanadditional460hoursayearonaverageastheyareabletorespondtoemailsontheirmobiles.ThestudybytechnologyretailerPixmaniarevealstheaverageUKworkingdayisbetween9and10hoursbutafurthertwohoursisspentrespondingtoorsendingworkemailsormakingworkcalls.Morethan90percentofofficeworkershaveanemail-enabledphonewithathirdaccessingthemmorethan20timesaday.Almostoneintenadmitsspendinguptothreehoursoutsidetheirnormalworkingdaycheckingworkemails.Someworkersconfesstheyareoncallalmost24hoursadaywithnineoutoftensayingtheytakeworkemailsandcallsoutsidetheirnormalworkinghours.Theaveragetimeforfirstcheckingemailsisbetween6amand7amwithmorethanathirdcheckingtheirfirstemailinthisperiodandaquartercheckingthembetween11pmandmidnight.GhadiHobeikamarketingdirectorofPixmaniasaidTheabilitytoaccessliterallymillionsofappskeepincontactviasocialnetworksandtakephotosandvideoaswellastextandcallhasmadesmartphonesinvaluableformanypeoplE.Howevertherearedrawbacks.Manycompaniesexpecttheiremployeestobeoncall24hoursadaysevendaysaweekandsmartphonesmeanthatpeopleliterallycannotgetawayfromwork.Themoreconstantlyincontactwebecomethemoreisexpectedofusinaworkcapacity.21.Whatcanweconcludefromthetext?A.AllthatglittersisnotgolD.B.Everycoinhastwosides.C.Itneverrainsbutpours.D.It’snogoodcryingoverspiltmilk.22.Theunderlinedwordaccessinginthethirdparagraphcanbereplacedby.A.callingB.reachingC.gettingD.using23.Whichofthefollowingistrueaccordingtothetext?A.TheaverageUKworkingdayisbetweennineandtwelvehours.B.Nine-tenthsspendoverthreehourscheckingworkemails.C.Onefourthchecktheirfirstmailsbetween11pmandmidnight.D.Theaveragetimeforfirstcheckingemailsisbetween6amand8am.24.What’sthemainideaofthetext?A.Workaholicslikesmartphones.B.Smartphonesbringaboutextrawork.C.Smartphonesmakeourliveeasier.D.Employersdon’tlikesmartphones.

TwodolphinsracearoundinabigpoolintheOceanPark.ThesmallerdolphinGraceshownoffafewofhertricksturningaroundandwavinghellotothecrowD.Themostamazingthingaboutherhoweveristhatshe’sevenswimmingatall.Shedoesn’thaveatail.Gracelosthertailasababywhenshegotcaughtupinafishtrap.WhenthedolphinarrivedattheOceanParkinDecember2005shewasfightingforherlifE.Isshegoingtomakeit?HertrainerAbbeyStonefearedtheworst.Gracedidmakeit—buthertaildidn’t.SheendeduplosingherflukesandthelowerpartofherpedunclE.Overthepastsixyearsshehaslearnedtoswimwithouthertail.Dolphinsswimbymovingtheirflukesandpeduncleupanddown.Gracetaughtherselftomoveanotherway—likeafish!ShepushedherselfforwardthroughthewaterbymovingherpedunclesfromsidetosidE.ThemovementputharmfulpressureonGrace’sbackbonE.Soacompanyofferedtocreateaman-madetailforher.ThetailhadtobestrongenoughtostayonGraceassheswambutsoftenoughthatitwouldn’thurther.ThefirsttimeGraceworetheartificialtail.Shesoonshookitoffandletitsinkinthebottomofthepool.Nowsheisstilllearningtousethetail.Somedaysshewearsitforanhouratatimeothersnotatall.Thetailisn’tnecessaryforhertofeelcomfortablesaysStonebutithelpstokeepthatrangeofmotion动作andbuildmuscles肌肉.Nowthedolphinisabouttogetanevenhappierending.ThismonthGracewillstarinDolphinTaleafilmthatfocusesonherrescueandrecovery.HerprogresshasinspiredmorethanjustanewmoviE.Manypeopletravelfromnearandfartomeether.SeeingGraceswimwithherman-madetailgivespeoplesomuchcouragE.46.WhenGracefirstarrivedattheOceanParkhertrainerworriedabouther______.A.chanceofsurvivalB.potentialabilityC.physicalbuildD.adaptationtothesurroundings.47.A.man-madetailiscreatedforGraceto______.A.letherrecoverfasterB.adjustherwayofswimmingC.makehercomfortableD.helpherperformbettertricks48.ThestoryofGraceinspirespeopleto______.A.facedifficultiesbravelyB.treatanimalsfriendlyC.treasurewhattheyhaveD.sticktotheirdreams

Thetermmultitaskingoriginallyreferredtoacomputer’sabilitytocarryoutseveraltasksatonetimE.Formanypeoplemultitaskinghasbecomeawayoflifeandevenakeytosuccess.InfactsomeexcellentmentalaerobicexercisesinvolveengagingthebrainintwoormorechallengingactivitiesatatimE.Althoughcheckinge-mailwhiletalkingonaphoneandreadingthenewspapermaybesecondnatureforsomepeoplemanytimesmultitaskingcanmakeuslessproductiveratherthanmorE.Andstudiesshowthattoomuchmultitaskingcanleadtoincreasedstressanxietyandmemoryloss.Multitaskingiseasiestwhenatleastoneofthetasksishabitualorrequireslittlethought.Mostpeopledon’tfinditdifficulttoeatandreadthenewspaperatthesametimE.Howeverwhentwoormoreattention-requiringtasksareattemptedatonetimepeoplesometimesmakemistakes.Weoftendon’trememberthingsaswellwhenwe’retryingtomanageseveraldetailsatthesametimE.Withoutmentalfocuswemaynotpayenoughattentiontonewinformationcominginsoitnevermakesitintoourmemorystores.Thatisoneofthemainreasonsweforgetpeople’snames—evensometimesrightaftertheyhaveintroducedthemselves.Multitaskingcanalsoaffectourrelationships.Ifsomeonecheckstheire-mailwhileonthephonewithafriendtheymaycomeoffasabsent-mindedordisinteresteD.Itcanalsocausethatpersontomissoroverlookkeyinformationbeingpassedontothem.39.Whyaresomementalaerobicexercisesdesignedtoengagepeopleinmultitasking?A.TomakethemmoreproductivE.B.Toreducetheirstressandanxiety.C.Todeveloptheircommunicationskills.D.Tohelpthemperformdailytasksmoreeasily.40.AccordingtoParagraph2whymayapersonsuddenlyforgetwhohehascalled?A.Heisprobablyinterruptedbyanothertask.B.Hemayneedarestbetweendialingandspeaking.C.HemayleavehisprefrontalcortextemporarilydamageD.D.HeisprobablynotveryfamiliarwiththepersonhehascalleD.41.Peopletendtomakemistakeswhen_______.A.thetasksrequirelittlethoughtB.theirrelationshipswithothersareaffectedC.newmessagesareprocessedoneafteranotherD.theyperformseveralchallengingtasksatatime42.Whatisthemainideaofthepassage?A.MultitaskinghasbecomeawayoflifE.B.MultitaskingexercisesneedtobeimproveD.C.MultitaskingoftenleadstoefficiencydeclinE.D.Multitaskingenablespeopletorememberthingsbetter.

AppleIncco-founderandformerCEOSteveJobscountedamongthegreatestAmericanCEOsofhisgenerationdiedonWednesdayattheageof56afterayears-longandhighlypublicbattlewithcancer.Jobs'deathwasannouncedbyAppleinastatementlateonWednesday.TheApple.comhomepagefeaturedablack-and-whitepictureofhimwiththewordsSteveJobsi955-2011.TheSiliconValleyiconwhogavetheworldtheiPodandtheiPhonehadresignedasCEOoftheworld'slargesttechnologycorporationinAugusthandingthepowertocurrentchiefexecutiveTimCook.Steve'sbrilliancepassionandenergywerethesourceofcountlessinnovationsthatenrichandimproveallofourlives.TheworldisimmeasurablybetterbecauseofSteveApplesaidinastatementannouncingJobs'passing.Job'shealthhadbeenacontroversialtopicforyears.HisbattlewithcancerhadbeenadeepconcerntoApplefansinvestorsandthecompany'sboardalike.Thenewsledtoanimmediateoutpouringofsympathy.AmongothersMicrosoftco-founderBilkGatessaidhewillmissJobsimmensely.AcollegedropoutBuddhistandsonofadoptiveparentsJobsstartedAppleComputerwithfriendSteveWozniakinmelate1970s.ThecompanysoonintroducedtheApple1computer-DespitehissuccessJobsrelationshinwithtopmanagementandtheboardsoureD.Thecompanyremovedmostofhispowersandthenin!985hewasfired.RememberingthatI'llbedeadsoonisthemostimportanttoolI'veeverusedtohelpmemakethebigchoicesinlifeJobssaidduringaStanfordgraduationceremonyin2005.Becausealmosteverything-allexternalexpectationsallprideallfearofembarrassmentorfailure–thesethingsjustfallawayinthefaceofdeathleavingonlywhatistrulyimportant.Rememberingthatyouaregoingtodieisthebestway!knowtoavoidthetrapofthinkingyouhavesomethingtolose.Youarealreadynaked.Thereisnoreasonnottofollowyourheart.60.WhichofthefollowingisTRUEaccordingtothetext?A.Jobsfoughtagainstcancerforyears.B.lobsfoundedtheAppleIncalone.C.JobshadneverlefttheAppleincD.JobshadbeentheCEOoftheAppleIncuntilhisdeath.61.Whatdopeoplefee!aboutJobs'death?A.happyB.sympatheticC.calmD.disappointed62.Whatdoestheunderlinedsentencemean?A.Jobsthetopmanagementandtheboardgotonwell.B.Jobsthetopmanagementandtheboarddidn'thaveagoodrelationship.C.Jobsthetopmanagementandtheboardthinkhighlyofeachother.D.Jobsmadethetopmanagementandtheboardfeelsour63.WhatCAN'TbeinferredfromJobs'words?A.Heknowshe'lldiesoon.B.Everyoneshouldfollowhisheart.C.Heusestheideaofbeingdeadsoontoencouragehimselftomakedifficultchoices.D.Mostpeopleareworriedtolosesomethingwhenmakingbigchoices.

IfthereisonethingI’msureaboutitisthatinahundredyearsfromnowwewillstillbereadingnewspapers.Itisnotthatnewspapersareanecessity.Evennowsomepeoplegetmostoftheirnewsfromtelevisionorradio.ManybuyapaperonlyonSaturdayorSunday.Butformostpeoplereadinganewspaperhasbecomeahabitpasseddownfromgenerationtogeneration.ThenatureofwhatisnewsmaychangE.Whatbasicallymakesnewsiswhataffectsourlives—thebigpoliticalstoriesthecoverageofthewarsearthquakesandotherdisasterswillcontinuemuchthesamE.Ithinktherewillbemorecoverageofscientificresearchthough.It’salreadyhappeninginareasthatmaydirectlyaffectourliveslikegenetic基因engineering.InthefutureIthinktherewillbemorecoverageofscientificexplanationsofwhywefeelaswedo—aswedevelopabetterunderstandingofhowthebrainoperatesandwhatourfeelingsreallyarE.It’squitepossiblethatinthenextcenturynewspaperswillbetransmitted传送electronicallyfromFleetStreetandprintedoutinourownhomE.InfactI’mprettysurethathowitwillhappeninthefuturE.Youwillprobablybeabletochoosefromamenumakingupyourownnewspaperbypickingoutthethingsyouwanttoread—sportsandinternationalnewsetC.IthinkpeoplehavegotitwrongwhentheytalkaboutcompetitionbetweenthedifferentmediA.Theyactuallyfeedoffeachother.Somepeopleonceforesawthattelevisionwouldkilloffnewspapersbutthathasn’thappeneD.Whatisreadontheprintedpagelastslongerthanpicturesonascreenorsoundlostintheair.AndasfortheInternetit’sneverreallypleasanttoreadsomethingjustonascreen.69.Whatisthebesttitleforthepassage?A.TheBestWaytoGetNewsB.TheChangesofMediaC.MakeYourOwnNewspaperD.TheFutureofNewspaper70.Inthewriter’sopinioninthefuture_______.A.morebigpoliticalaffairswarsanddisasterswillmakenewsB.newspaperswillnotbeprintedinpublishinghousesanylongerC.newspaperswillcovermorescientificresearchD.moreandmorepeoplewillwatchTV71.Fromthepassagewecaninfer_______.A.newspaperswillwinthecompetitionamongthedifferentmediaB.newspaperswillstaywithustogetherwithothermediaC.televisionwilltaketheplaceofnewspaperD.thewriterbelievesomemediawilldieout72.Theunderlinedphrasefeedoffinthelastparagraphmeans_______.A.dependonB.competewithC.fightwithD.killoff

Autumnblues?Letthesunshineinfallingleavesflowersandcoldwinds.Formanypeoplelateautumncanbeaseasonofdepression.Thosewhosufferfromtheautumnblueareoftenextremelytiredlackenergyneedmoresleepfeelincreasedappetiteandgainweight.TheexactcauseofthisconditionoftencalledseasonaldepressionorseasonalaffectivedisorderSADisnotknownyetsaysChenJueassociateprofessoratShanghaiMentalHealthCenter.Butrecentstudiesindicatethatweatherchangeisinfluentialandstronglysuggestthatthisconditioniscausedbychangesintheavailability得到ofsunlight.Onetheoryisthatwithdecreasedexposure暴露tosunlightthebiologicalclockthatregulatesmoodsleepandhormonesisdelayedrunningmoreslowlyinwinterExposuretolightmayresetthebiologicalclock.Anothertheoryisthatbrainchemicalsthattransmitinformationbetweennervescalledneurotransmittersforexampleserotoninmaybealtered改变inindividualswithSAD.Itisbelievedthatexposuretolightcancorrecttheseimbalances.Itisasadseasonbutyoucantrytomakeithappy.RememberspringalwayslivesinyourheartChensays.Goingoutdoorstogetsomesunlightmayreducethetensionthatbringsyouthelowspirits.Relaxatwork.Stretchbreathedeeply.Takeateabreak.Thinkofyournextvacation.ColortreatmentalsoworksinhandlinglowmooD.Musicalsoplaysaroleintreatingautumnblues.68.Fromthe3rdparagraphweknowthattherethatcanhelptodealwithautumnblues.A.isnobiologicalclockB.isarealexampleC.isnopossibilityD.aresomeways69.Whichofthefollowingistrueaccordingtothetext?A.Therealcauseforautumnbluesisstillunknown.B.Autumnbluescanbefeelingsofhappiness.C.Peoplefeeltiredinautumn.D.Weatherdoesn’tchangepeoplE.70.TodealwithautumnbluesyoucandothefollowingsEXCEPT.A.Resetthebiologicalclockregulatingmoodsleepandhormones.B.Eatmorefoodverylowincaloriesandsugar.C.Keepthebalanceofnervesthattransmitinformation.D.Takeoutdooractivitiesorsports.

Germany’smysteryEnglish-speakingforestboyissaidtobehavingtroubleadjustingtoconventionallifE.SourceclosetothecaseclaimheishavingdifficultysleepinginaproperbedandwantstoreturntothewilD.Othercreaturecomfortssuchassoaphotshowersandrunningwaterarealsounsettlingtheyoungster.KnownonlyasRayandbelievedtobearound17theboyisthoughttohavespentatleastfiveyearssleepingroughinwoodssouthoftheGermancapital.HehandedhimselfintoofficialsonSeptember5andwascarryingarucksack帆布背包tentandsleepingbag.HetoldpolicehisfatherhadrecentlydiedafterafallandhehadburiedhiminashallowgravE.HethenwalkednorthforafortnightforhelpuntilhegottotheGermancapital.DespitethebizarrenatureofthestorypolicehavesaiditiscrediblE.Thesourcesaiditwasunsurprisingtheteenagerfoundasoftbedsounusualifhehadbeensleepingroughforsolong.HehasindicatedthathewouldbefarmorecomfortableontheforestfloorandwouldprefertoreturntheretosleepthesourceaddeD.TheboyclaimedthathisfatherhadtakenhimintothewoodssouthofBerlinafterhismotherDoreendiedinacarcrash.NowdetectiveshavebegunasearchforthegraveoranyotherplacewhereRyan’sbodymightbelying.Theboyisunabletotellthemexactlywhereheburiedhisfatherbutclaimedhefollowedhiscompassnorthwards.InthemeantimetheyaretryingtomakeRayawardofcourtsothatanofficialcanbeappointedtomakeimportantdecisionsonhisbehalf.DNAfingerprintanddentalrecordscanalsothenbehandedtoInterpol国际刑警sothathisrecordscanbecheckedagainstthoseofmissingchildren.A.policespokesmanconfirmedthatasearchhadstartedforRyan’sgraveaftertheboysaidthathewasburiedunderthestonestwoweekssouthofBerlin.PolicearepuzzledbythecasebutsaythateverythingRayhastoldthemsofaraddsup.OfficialsbelievetheteenagercouldbeBritishbecausehespeaksEnglishbutonlybasicGerman.TheBritishConsulisalsoworkingwithpolicetotrytosolvethemystery.Raywhois5feet11incheswithblondhairisingoodphysicalshapeandhadnosignsofabuseapartfromasmallscarthatwasatleast3yearsolD.61.WhichofthefollowingstatementsaboutforestboyisTRUE?A.HehasnodifficultyadaptingtothecommonlifE.B.Heisabout17yearsoldnow.C.Hesufferedgreathardshipintheforest.D.Hehasspent10yearsinwoods.62.WhatdoesthesentenceHehandedhimselfintoofficialsinthethirdparagraphmean?A.HewantedtogethelpfromthepolicE.B.HewantedtodeliverhimselftothepolicE.C.HewantedtotellthepoliceabouthisbizarreadventurE.D.HewassenttothepolicestationbyotherpeoplE.63.Whatcanwelearnabouttheboyfromthetext?A.Bothofhisparentsdiedinacaraccident.Heisparentlessnow.B.HeisnowbeingtakencareofbytheInterpol.C.Ryan’sbodyhasbeenfoundburiedunderstonessouthofBerlin.D.TheboywalkedallthewaytoBerlinwiththehelpofacompass.64.WhichofthefollowingphrasedoesNOThavethesamemeaningastheunderlinedphraseaddup?A.makesenseB.amounttoC.holdwaterD.soundreasonable65.Whatstillremainsmysteriousaboutthisboy?A.Hisparent’snames.B.Hisstateofhealth.C.Hisnationality.D.Thelanguageshespeaks.