A small piece of fish each day may keep the heart doctor away. That’s the finding of a study of Dutch men in which deaths from heart disease were more than 50 percent lower among those who consumed at least an ounce of salt-water fish per day compared to those who never ate fish. The Dutch research is one of three human studies that give strong scientific support to the long held belief that eating fish can provide health benefits, particularly to the heart. Heart disease is the number-one killer in the United States, with more than 550,000 deaths occurring from heart attacks each year. But previous research has shown that the level of heart disease is lower in cultures that consume more fish than Americans do. There are fewer heart disease deaths, for example, among the Eskimos of Greenland, who consume about 14 ounces of fish a day, and among the Japanese, whose daily fish consumption averages more than 3 ounces. For 20 years, the Dutch study followed 852 middle-aged men, 20 percent of whom ate no fish. At the start of the study, average fish consumption was about two-thirds of an ounce each day, with more men eating lean fish than fatty fish. During the next two decades, 78 of the men died from heart diseasE. The fewest deaths were among the group who regularly ate fish, even at levels far lower than those of the Japanese or Eskimos. This relationship was true regardless of other factors such as age, high blood pressure, or blood cholesterol（胆固醇）levels. 25. In which section of a newspaper can we read this passage? A. Ads B. Movies C. Briefs D. Health and Diet 26. The passage is mainly about _________. A. the high incidence of heart disease in some countries B. the changes in people’s diet C. the effect of fish eating on people’s health D. the daily fish consumption of people in different cultures 27. The phrase “this relationship” in paragraph 6 refers to the connection between ____ and the level of heart diseasE. A. the amount of fish eaten B. regular fish-eating C. the kind of fish eaten D. people of different areas 28. From the passage we know the author is most probably ___________. A. a heart doctor B. a science researcher C. a supporter of healthy eating D. a university student

AvictimofclimatechangeA.polarbear'sdeadbodyfoundontheArcticislandofSvalbardthenorthernmostpartofNorwayhasshockedexpertswhosayclimatechangemaybetoblamefortheThestarvedpolarbearinNorwaywassaidtobeingoodhealthinAprilwhentheNorwegianPolarInstituteexaminedandlabeledit.HowevertheanimalwasreducedtoskinandbonesbythetimeagroupofexplorerscameacrossitsbodyinJuly.Thebearisthoughttohavebeenheadingnorthinadesperatesearchforseaicethatwouldallowittohuntforseals.FromhislyingpositionindeaththebearappearstosimplyhavestarvedanddiedwherehedroppedpolarbearexpertDr.IanStirlingaprofessorattheUniversityofAlbertasaidHehadexternalsuggestionofanyremainingfathavingbeenreducedtolittlemorethanskinandbone.Stirlingbelievesthebearstarvedtodeathasaresultofalackofseaicewhichtheanimalsuseasaplatformforhuntingseals.Thatmayalsoexplainwhythe16-year-oldmalebearwasfoundabout155milesnorthofwhereitwasseeninApril.Arcticseaicereachedarecordlowin2012accordingtoareportreleasedthisweekbytheNationalOceanicandAtmosphericAdministrationthatpointedtocontinuedsignsofclimatechange.TheInternationalUnionforConservationofNaturecurrentlyclassifiespolarbearsasvulnerableonitsRedListofThreatenedSpecies.56.HowdidStirlingknowthereasonforthedeathofthepolarbear?A.Bythefoodheate.B.Bydoingfurtherexperiments.C.Byobservingotherpolarbears.D.Byhislyingpositionindeath.57.Theunderlinedwordvulnerableprobablymeans_____.A.easilyhurtB.difficulttohuntC.dangerousD.amazing58.Whatistheauthor'sattitudetotheincident?A.Favorable.B.Uncaring.C.Doubtful.D.Concerned.59.Wheredoesthistextprobablycomefrom?A.A.novel.B.A.guidebook.C.A.newsreport.D.Anadvertisement.

MRSFlowerswasoneofthefewgentlewomenIhaveeverknown.OnesummerafternoonshestoppedatourstoretobuyfooD.Momsaid:SisterFlowersI’llsendBaileyuptoyourhousewiththesethings.ThankyouMrsHenderson.I’dpreferMargueritethough.Mynamesoundedsobeautifulwhenshesaidit.I'vebeenmeaningtotalktoheranyway.TherewasapathbesidetherockyroadandMrsFlowerswalkedaheadofmE.Withoutturningherheadshespoketome:Ihearyou’reworkingverywellinschoolMargueritebutonlyinwrittenassignments.Theteachersreportthattheyhavetroublegettingyoutotalkinclass.Languageismankind’swayofcommunicatingwithourfellowmenanditislanguagealonewhichseparatesusfromtheloweranimals.ThatwasatotallynewideatomeandIwouldneedtimetothinkaboutit.Yourgrandmothersaysyoureadalot---everychanceyouget.That’sgoodbutnotgoodenough.Wordsmeanmorethanwhatissetdownonpaper...ShesaidshewasgoingtogivemesomebooksandthatImustnotonlyreadthembutreadthemalouD.ShesuggestedthatIshouldmakeasentencesoundinasmanydifferentwaysaspossiblE.ShebroughtathicksmallbookfromthebookcasE.ItwasA.TaleofTwoCities.SheopenedthebookstartedreadingandIheardpoetryforthefirsttimeinmylifE.ItwasthebestoftimesandtheworstoftimE.Hervoicecurvedthroughandaroundthewords.Shewasalmostsinging.61.MrsFlowerspreferredtheauthortosendwhatsheboughthomemainlybecause__________.A.sheknewtheauthorbetterthanBaileyB.shewantedtohaveachatwiththeauthorC.shewantedtoinvitetheauthoroverforsomesnacksD.shewantedtohelptheauthorwithherwrittentasks62.Accordingtothearticletheauthor______.A.didn’tworkhardinschoolB.wasnotactiveenoughinclassC.likedtotalkwithherclassmatesinclassD.gotalongwellwithherteachersandclassmates63.OnthewaybackhomeMrsFlowers______.A.triedtopersuadetheauthortotalkwithherB.recommendedsomepopularbookstotheauthorC.encouragedtheauthortointeractmorewithothersD.convincedtheauthoroftheimportanceofreading64.WecaninferfromthearticlethatMrsFlowers______.A.isakind-heartedandhumorousteacherB.attachesmoreimportancetowrittenEnglishthanoralEnglishC.believesreadingliteraryworksaloudhelpspeoplebetterunderstandthemD.thinksreadingclassicliteraryworkshelpspeoplecommunicatebetter

Usingtoomuchwaterorthrowingrubbishintoourriversareclearwaysthathumanscanputourwatersupplyindangerbutwealsoaffectourwatersupplyinlessobviousways.Youmaywonderhowpaving铺砌aroadcanleadtolessuseablefreshwater.A.majorpartofthewaterweuseeverydayisgroundwater.Groundwaterdoesnotcomefromlakesorrivers.Itcomefromunderground.Themoreroadsandparkinglotswepavethelesswatercanflowintothegroundtobecomegroundwater.Humanactivityisnotresponsibleforallwatershortages短缺.Driverclimatesareofcoursemorelikelytohavedroughts干旱thanareaswithmorerainfallbutinanycasegoodmanagementcanhelptomakesurethereisenoughwatertomeetourbasicneeds.Thinkingaboutthewayweusewatereverydaycanmakeabigdifferencetoo.IntheUnitedStatesafamilyoffourcanuse1.5tonsofwateraday!Thisshowshowmuchwedependonwatertolivebutthere’salotwecandotolowerthenumber.Youcantakestepstosavewaterinyourhome.Tostartwithusethesameglassforyourdrinkingwaterallday.Washitonlyonceaday.Runyourdishwasher洗碗机onlywhenitisfull.Helpyourparentsfixanyleaksinyourhome.Youcanevenhelptokeepourwatersupplycleanbyrecyclingbatteriesinsteadofthrowingthemaway.49.Whichofthefollowingismostlikelytoleadtolessgroundwater?A.Usingriverwater.B.Throwingbatteriesaway.C.pavingparkinglots.D.Throwingrubbishintolakes.50.Whatcanbeinferredfromthetext?A.Allwatershortagesareduetohumanbehavior.B.Ittakesalotofefforttomeetourwaterneeds.C.Thereismuchwecandotoreducefamilysize.D.TheaveragefamilyinAmericamakesproperuseofwater.51.Thelastparagraphisintendedto.A.showushowtofixleaksathomeB.tellushowtorunadishwasherC.provewhatdrinkingglassisbestforusD.suggestwhatwedotosavewaterathome52.Thetextismainlyabout.A.WhypavingroadsreducesourwaterB.howmuchwedependonwatertoliveC.whydroughtsoccurmoreindryclimatesD.howhumanactivityaffectsourwatersupply

AsweenjoythesummeroceanwavesalongthebeacheswemaythinknervouslyaboutStevenSpielberg'sJawsandthegreatfearthatsharksinspireinus.Yetwearehappytoseeglobaleffortstoprotectthedecliningnumberofsharks.Theworldhasrealizedthatweneedthespecieslikesharkstokeepabalancedecosystem.Sharksinparticularareinthesedays.ThankstogoodpublicpolicyandfamousstarssuchasJackieChanandAngLeekillingsharksforfinsoupisnolongercool.Thedemandforsharkfinshasbeenrisingfordecadesthreateningsharkswithextinction灭绝—upto100millionsharksarekilledeachyearjustfortheirfins.ButwehavestartedtoreversethetrendparticularlyinmanyareasoftheUnitedStatesandoverseaswhererestaurantsonceproudlyprovideddelicioussharkfinsonthemenu.InCaliforniaabanonthesaleandpossessionofsharkfinsouphasgoneintoeffectthisyearthroughtheeffortsofWildAidandotherorganizations.OverseasmarketingandpubliceffortsfeaturingpostersonpublictransportationsystemsandTVadshavebeenunderwayforthepastfewyears.Theseeffortsallshowsignsofsuccessonboththesupplysideandthedemandsideoftradeinsharkfins.Actuallystoppingthekillingofsharksispartofabroadermovementtostopthekillingofwildanimalsandthebuyingandsellingofwildlifeproducts.TheseproductscomefromhuntingelephantstigersandrhinosbesideskillingmarinelifE.Whetheritissharkfinsouporivorypianokeyskillinganimalsisbigbusiness.Thehuntingofelephantsinsearchofivorytusksforluxury奢侈的goodshasbecomeafull­scalewar.ThedecreaseofAfricanelephantpopulationsisalarming.TogetherwithinternationalpartnerstheUnitedStatesisleadingtheworldwideefforttoreducedemandforhigh­endproductsthatrelyonkillinganimals.21.TheunderlinedwordreverseinParagraph3probablymeans________.A.showB.keepC.followD.change22.Fromthepassageweknow________.A.JackieChanandAngLeemakefinsouppopularB.alotofwildanimalshavebeenkilledforproductsC.StevenSpielberg'sJawsinspiresustoprotectsharksD.thenumberofAfricanelephantshasbeenincreased23.Whatcanweinferfromthepassage?A.Moreanimalsforhigh­endproductswillbesaveD.B.Peoplehavekickedthehabitofhavingsharkfinsoup.C.Sharkfinswillnotbeavailableanymoreinrestaurants.D.Globaleffortshavesucceededinstoppingkillingwildanimals.

Whoevernamedthebirdturkey—awordthatEnglishspeakersbeganmentioningaslongagoas1541—madeabigmistakE.AlthoughthatbirdcamefromGuinea几内亚inAfricatheEnglishapparentlyfirstimporteditfromTurkishmerchants.Sonaturallytheycalleditaturkey.WhenEnglishspeakersestablishedtheirfirstcolonyinJamestownVirginiain1607theythoughttheysawturkeystheretoo.WefoundanislandonwhichthereweremanyturkeyswroteonE.ThesebirdswerenotfromTurkeyandwerenotrelatedtotheGuineanfowl家禽ofAfricA.Butturkeystheywerecalledandturkeystheyremain.MuchofwhatweknowabouttheJamestowncolonywaswrittenbyCaptainJohnSmithwhoseeffortspreservedthecolonyfromcollapse垮掉andwhointurnwaspreservedbytheIndianprincessPocahontas.Smith’saccountsofthecolonyfrequentlymentionturkeysasfoodgiftsandobjectsoftradE.In1607SmithwrotetocelebratethefirstpeaceafterthefirstarmedfighttheIndiansbroughtturkeysbreadandwhattheyhadsinginganddancingincelebrationoffriendshiptilltheydeparteD.ElsewhereSmithnotedthattheIndiansmadewarmandbeautifulcloaks披风fromturkeyfeathers.FurthernorthasthePlymouthcolonynearedtheendofitsfirstyearin1621GovernorWilliamBradfordalsoobservedagreatflockofwildturkeysofwhichtheytookmany.UndoubtedlyturkeyswereamongthefowlsservedatthefirstThanksgivingdinner.DespitethosesignificantbeginningsandBenjaminFranklin’slobbying游说theturkeylosttothebaldeagleinthecontestforAmericanbirD.AnditisaloserinmodernEnglishslangtoo.Sincethe1920sturkeyhasbeenatermforaplayormoviethatisafailureandsincethe1950sforapersonwhoisnotfitforhisjoB.ButthoughtheturkeyneversucceededinbecomingtheAmericansymbolitdidbecometheAmericanfeast.ThanksgivingisTurkeyDayandtheturkeyhascomeintoourlanguagemorethanotherbirds.Wenevertalkeaglewetalkturkeywhenwespeakfrankly.63.Whonamedthebirdturkey?A.Englishspeakers.B.Turkishmerchants.C.CaptainJohnSmith.D.Guineans.64.Itcanbeinferredfromthesecondparagraphthat________.A.turkeyswerebroughttoJamestownbySmithB.theIndiansfoughtwithCaptainSmithforturkeysC.turkeyswereservedatthefirstThanksgivingdinnerD.CaptainJohnSmithwroteabooknamedJamestownColony65.Whenwesaysomebodyisaturkeyitmeans________.A.heisveryangryB.hehasnoabilitytodohisjobC.helikeseatingturkeysD.hespeaksfrankly66.Whichofthefollowingstatementsistrueaccordingtothepassage?A.TheturkeywasbeateninafightbythebaldeaglE.B.TurkeyswereintroducedtoAmericafromGuineA.C.TheturkeyhasbecomeAmericanfoodbecauseitwasbeaten.D.TurkeyhasbecomeatermoffailureinmodernEnglishslang.

iPhone5thetallestthingtohappentoiPhonesinceiPhoneWedon’twanttochangeyourphonewewanttomakeyousayWowthatisabiggerchangethanIexpected.iPhone5isaresultofthatdesiretosurprisE.It’sbeencompletelyredesigneD.Forthefirsttimeeverwe’veincreasedthesizeofdisplay显示bymakingthescreentallerbutnotwider.Youcanseemoreofyourcontentwithouttheneedtoscroll.Wearemakingscrollingthethingofthepast.Itismorecomfortabletouseandreducestirednessfromscrollingwhenyoureadlongdocuments.EvenwiththelargerdisplayitisthethinnestiPhoneweeverbuilt.ToachievethedesignthistallwehavetolookatitandcompletelyredesignthearchitectureinsidE.It’s18%thinnerand79.5%tallerthanthepreviousiPhonE.ItmakeseverythingyoudooniPhone5easier.Nomorehiddenmenusnoconfusinggestures.Everythingisrightatyourfingertips.Thepanoramafeature全景拍照issimplyawesomE.TheultraHD超高清widescreendisplayletsyougetyourentireshotinasinglesnap快门.Youcanalsouseitscreativedesignforpicturestabilization.WithaniPhonethistallreceptionofsignalshasneverbeenbetter.AndofcourseallyourfavoriteapplicationsarestillavailablE.InfactyouwillfindyouroldfavoritesalsobenefitfromthenewexperiencinghandsomeultraHDwidescreen.WefoundwhilemanypreviousiPhoneownerswereusingFacetimetheyonlyuseditforthefaces.That’swhyweareintroducingBodytimE.WithitsultraHDwidescreendisplayBodytimeletsyouseeaperson’sentirebody.Ittookallofourlearningandallofourthinkingtorealizesomethingsosimplesoclearandyetsotall.AndIwishyourpocketweretallenoughtoholdsuchaperfectinvention!68.HowisthescreenofiPhone5differentfromthepreviousones?A.Wider.B.Taller.C.Easier.D.Thinner.69.Whatdoestheunderlinedwordscrollprobablymean?A.UpdatethewebpagE.B.Downloadnewdocuments.C.Refreshthecontent.D.MovethecontentupwarD.70.WhatcanweinferaboutiPhone5fromthepassage?A.Itisreallynecessaryforyoutohidemenus.B.Thereceptionofsignalsisbadduetoitslength.C.BodytimeispopularwithpreviousiPhoneowners.D.NewapplicationsofiPhone5areunbelievablE.71.iPhone5isintroducedinan________wayinthispassagE.A.humorousB.objectiveC.scientificD.serious

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

Fishesareexpectedtobereducedinsizebyupto24%becauseofglobalwarmingsayscientists.Scientistsbelievethatglobalwarminghasagreatereffectonmarineecosystems海洋生态系统thanpreviouslythought.Previousresearcheshavesuggestedthatincreasingoceantemperatureswouldaffectboththedistributionandthereproductiveabilitiesoffishes.NowscientistsbelievethatfishsizewouldalsobeheavilyaffecteD.Researchersbuiltamodeltoseehowfisheswouldreacttothelowerlevelofoxygeninwater.Oceantemperaturesincreaseandsodothebodytemperaturesoffishes.ButaccordingtotheleadingscientistDrWilliamCheungthelowerlevelofoxygeninwateristhekey.Warmerwaterscouldreducetheoceanoxygenlevelandgreatlyreducefishes’bodyweight.Ontheotherhandrisingtemperaturedirectlyincreasethemetabolic新陈代谢的rateoffishes’bodyfunction.Thisleadstoanincreaseinoxygendemandfornormalbodyactivities.SofisheswillrunoutofoxygenforgrowthatasmallerbodysizE.Theresearchgroupalsouseditsmodeltopredictfishes’movementsasaresultofwarmingwaters.Thegroupbelievesthatmostfishes’populationswillmovetowardstheEarth’spolesatarateofupto3.3kmperyear.Takingthesefactorsintoconsiderationtheresearchteamconcludesthatfishes’bodysizewillbereducedbybetween14%and24%withthelargestreductionintheIndianandAtlanticOceans.Whencomparedwiththeactualstudyoffishsizethemodelseemstomakealowerjudgmentofwhat’sactuallyhappeningintheseas.TheresearchersmadeactualstudiesonsomekindsoffisheslivingintheAtlanticOcean.TheyfoundthattherecordeddataonthesefishesshowedgreaterreductioninbodysizethanthemodelshadpredicteD.Scientistsbelievesmaller-sizedfishescouldseriouslyaffecttheabilityoffishestoreproduce繁殖.DrAlanBaudronfromtheUniversityofAberdeentheUKthinksthatsmallerfishesproducefewerandsmallereggsanditcouldaffectthereproductivepotentialoffishes.68.FromParagraph2wecanknowthat________.A.scientistshavemadetworesearchesontheinfluenceofglobalwarmingbynow.B.researcherssuggestthattheoceantemperatureisincreasingatahighratE.C.researchessuggestthatglobalwarmingwouldchangefishes’innerstructureD.scientistshaveknownthreeaspectsoftheinfluencethatglobalwarminghasonfishes69.Whichisthemostimportantfactorthatmakesfishessmaller?A.Higherbodytemperaturesoffishes.B.Loweroxygenlevelinwater.C.Slowerheartbeatsoffishes.D.Higherpressureinwater.70.Accordingtothegroupin30yearsmostfishpopulationswillmoveabout________.A.30kilometersB.60kilometersC.100kilometersD.200kilometers71.Whichofthefollowinginthebesttitleforthepassage?A.Climatechangemaymakefishessmaller.B.Globalwarminghasabadeffectonfishes.C.Globalwarmingaffectsthedistributionoffishes.D.ClimatechangemayaffecttheabilityoffishestoreproducE.

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

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

Scientistsknowofmorethan1000volcanoesonthesurfaceofVenusEarth’ssisterplanet.A.bigquestionhasbeen:Aretheystillactive?Thescientistssayyes.TheirevidenceforrecentvolcanicactivityonVenuscomesfromalava熔岩flowintheplanet’snorthernhemispherE.Theflowishotterthantherocksaroundwhichmeansthelavamightstillbecoolingoff.Theflowwestudiedseemstobeveryyoung---itisstillwarminsideNataliyaBondarenkosaiD.VenusisadifficultplanettostudyfromEarthbecauseitissurroundedbythickclouds.TelescopesonEarthcan’tseethroughthesecloudssothebestinformationaboutVenuscomesfromspacecraftorbitingit.BondarenkoandhercolleaguesstudiedthelavaflowusingdatafromNASA’sMagellanmission.ThatspacecraftspentfouryearsinorbitaroundVenusandusedradartomakeamapof98percentoftheplanet’ssurfacE.OnOctober11th1994themissionendedandthespacecraftplunged跌落throughVenus’heavycloudcoverandcrashedontotheplanetbelow.WhileinorbittheMagellancraftsentmicrowaveswhichcangothroughVenus’cloudstothesurfacE.Microwavesareinvisibleandcanbeaslongasthreefeet.Thesewavesareakindofenergylikelight.Andlikelighttheybounceoffsurfaces.ThewaythewavesbouncedofftheVenus’surfaceandbacktothecraftsuppliedinformationthatthescientistsusedtoestimatethetemperatureofvariouspartsoftheplanet’ssurfacE.Bondarenko’steamfoundthatthelavaflowwashotterthanitssurroundings---whichmaymeanthelavaflowisintheprocessofcooling.Thescientistssaythelavaflowcan’tbeveryoldbecauseifitwereitwouldhavecooledoffenoughthatMagellanwouldn’thavenoticedthedifferenceinmicrowaves.Sheaddsthattheflowappearsina1978viewofthesurfacethatacraftcalledthePioneerVenusOrbitercaptureD.54.WhathappenedtoMagellanintheend?A.Itwasfloatinginspaceforever.B.Itflewintoheavyclouds.C.ItreturnedtotheEarth.D.ItfellontoVenus.55.HowcouldBondarenkojudgethetemperatureoftheVenus?A.BylookingatitwithapowerfultelescopE.B.BymeasuringthethicknessofcloudsoverVenus.C.BycalculatingthemicrowavebouncingoffVenus’ssurfacE.D.ByorbitingVenusfor4yearsinaspacecraft.56.Thebesttitleforthepassagemaybe______.A.WarmlavaonVenusB.MorevolcaniceruptionsonVenusC.VenusisjustlikeabigactivevolcanoD.LavaflowsarefirstfoundonVenus

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

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.

InJuly1994Jupiterthelargestplanetinoursolarsystemwasstruckby21piecesofacomet彗星.Whenthefragment碎片landedinthesouthernpartofthegiantplanettheexplosionswerewatchedbyscientistshereonearth.Butwhatifourownplanetwashitbyacomet?Theyearis2094.IthasbeenannouncedthatacometisheadingtowardstheEarth.MostofitwillmissourplantbuttwofragmentswillprobablyhitthesouthernpartoftheEarth.ThenewshascausedpaniC.On17JulyafragmentfourkilometerswideenterstheEarth’satmospherewithahugeexplosion.AbouthalfofthefragmentisdestroyeD.ButthemajorpartsurvivesandhitstheSouthAtlanticat200timesthespeedofsounD.Theseaboilsandanenormouswaveiscreatedandspreads.ThewallofwaterrushestowardssouthernAfricaat800kilometersanhour.CitiesontheAfricancoastaretotallydestroyedandmillionsofpeoplearedrowneD.ThewavemovesintotheIndianOceanandheadstowardsAsiA.MillionsofpeoplearealreadydeadinthesouthernpartoftheEarthbutthenorthwon’tescapeforlong.Tonsofbrokenpiecesarethrownintotheatmospherebytheexplosions.Asthesunishiddenbycloudsofdusttemperaturesaroundtheworldfalltoalmostzero.CropsareruineD.WarsbreakoutascountriesfightforfooD.A.yearlatercivilizationhascollapseD.Nomorethan10millionpeoplehavesurviveD.Coulditreallyhappen?InfactithasalreadyhappenedmorethanonceinthehistoryoftheEarth.Thedinosaurs恐龙wereontheEarthforover160millionyears.Then65millionyearsagotheysuddenlydisappeareD.ManyscientistsbelievethattheEarthwashitbyaspacefragment.Thedinosaurscouldn’tsurviveinthecoldclimatethatfollowedandtheybecameextinct.Willwemeetthesameend?67.WhichofthefollowingisNOTTRUEaccordingtotheauthor’sdescriptionofthedisasterin2094?A.ThewholeworldbecomesextremelycolD.B.AllthecoastalcitiesinAfricanaredestroyeD.C.Thewholemankindbecomesextinct.D.Thevisitofthecometresultsinwars.68.Whydoestheauthormentiondinosaursattheendofthepassage?A.BecausetheycouldonlyliveinthewarmclimatE.B.BecausetheyonceruledtheEarth.C.Becausetheirextinctionshowsfuturedisasters.D.BecausedinosaursandhumansneverliveinthesameagE.

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

ThirteenvehicleslineduplastMarchtoraceacrosstheMojaveDesertseekingamillioninprizemoney.Towintheyhadtofinishthe142-mileraceinlessthan10hours.Teamsandwatchersknewtheremightbenowinneratallbecausethesevehiclesweremissingakeypart—drivers.DARPAtheDefenseAdvancedResearchProjectsAgencyorganizedtheraceaspartofapushtodeveloproboticvehiclesforfuturebattlefields.ButtheGrandChallengeasitwascalledjustprovedhowdifficultitistogetacartospeedacrossanunfamiliardesertwithouthumanguidancE.OnehaditsbrakelockupinthestartingareaAnotherbeganbythrowingitselfontoawall.Anothergottiedupbybushesneartheroadafter1.9miles.Oneturnedupsidedown.Onetookoffinentirelythewrongdirectionandhadtobedisabledbyremote远距离的consol.Onewentalittlemorethanamileandrushedintoafence;anothermanagedtogoforsixmilesbutstuckonarock.Thewinneriftherewasanyreached7.8milesbeforeitranintoalongnarrowholeandthefrontwheelscaughtonfirE.YougetalotofrespectfornaturalabilitiesofthelivingthingssaysReinholdBehringerwhohelpeddesigntwooftheear-sizevehiclesforacompanycalledSci-AutonicsEvenants蚂蚁candoallthesetaskseffortlessly.It’sveryhardforustoputtheseabilitiesintoourmachines.TheroboticvehiclesthoughwithnecessarymodernequipmentsuchasadvancedcomputersandGPSguidancehadtroublefiguringoutfastenoughtheblocksaheadthatatwo-year-oldhumanrecognizesimmediately.Surethatveryyoungchildwhohasjustonlylearnedtowalkmaynotthinktowipeapplejuiceoffherfacebutshealreadyknowsthatwhenthere’sacookieinthekitchenshehastoclimbupthetableandthatwhenshegetstothecookieitwilltastegooD.SheismoreadvancedevenmonthsoldthananymachinehumanshavedesigneD.68.DARPAorganizedtheraceinorderto______.A.raisemoneyforproducingmoreroboticvehiclesB.pushthedevelopmentofvehicleindustryC.trainmorepeopletodriveinthedesertD.improvethevehiclesforfuturewars69.Fromthepassageweknowroboticvehiclesareakindofmachinesthat______.A.candoeffortlesslywhatevertaskslivingthingscanB.cantakepartinaraceacross142mileswithatimelimitC.canshowofftheirabilitytoturnthemselvesupsidedownD.canmovefromplacetop1acewithoutbeingdrivenbyhumanbeings70.Intheracethegreatestdistanceoneroboticvehiclecoveredwas_____.A.abouteightmilesB.sixmilesC.almosttwomilesD.aboutonemile71.Inthelastparagraphthewriterimpliesthatthereisalongwaytogo____.A.foraroboticvehicletofinisha142-mileracewithoutanydifficultiesB.foralittlechildwhohasjustlearnedtowalktoreachthecookieonthetableC.foraroboticvehicletodealwithasimpleproblemthatalittlechildcansolveD.foralittlechildtounderstandtheimportanceofwipingapplejuiceoffitsface

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.

OnanumberofdrivesthroughoutmychildhoodmymotherwouldsuddenlypulloverthecartoexamineaflowerbythesideoftheroadorrescueabeetlefromtragedywhileIinmylateteensandearlytwentiessatimpatientlyinthecar.ThoughMother’sDayfollowsEarthDayformetheyhavealwaysbeenrelatedtoeachother.Mymomhasbeengreensinceshebecameconcernedabouttheenvironment.Partofthishabitwasbornofthrift节俭.Likehermotherandhergrandmotherbeforehermomsavesglassjarsemptycheesecontainersandreusesherplasticbags.MomcreatesakindofharmoniousrelationshipwithwildlifeinheryarD.Sheknowstopicktheapplesonhertreesalittleearlytoavoidthebearsandthatifsheleavesthebirdfeeders给食器outatnightitislikelythattheywillbeknockeddownbyafamilyofraccoons浣熊.Spidersthatmaketheirwayintothehouseandarecaughtinjuiceglasseswillbesetlooseinthegarden.Itrytoteachmychildrenthatlookingoutfortheenvironmentstartswithbeingawareoftheenvironment.Onbusystreetswelookfordandelions蒲公英toflyinthewind;wesayhellotoneighborhoodcatsandpickupplasticcupsandpaperbags.ThisteachingcomeseasilyIrealizebecauseIwastaughtsowellbyexamplE.Momdidn’tneedtolecture;shedidn’tneedtobeatadrumtochangetheworlD.Shesimplysloweddownenoughtoenjoylivinginitandwiththatjoycamemercyandaninstinctforprotection.Iamslowingdownanditisn’tbecauseoftheweightofmynearlyfortyyearsontheplanetitisoutofmyconcernfortheplanetitself.I’vebeguntosaveglassjarsandreusepackingenvelopes.IpauseinmydailytaskstowatchthesquirrelsraceeachotherinthetreesabovemyhousE.LastsummerinthecompanyofmysonanddaughterIplantedtomatoesinmyyarD.WiththeheatofAugustaroundmeIatethefirstwhilesittingonmylowwallwithdirtonmyhands.WarmfromthesunitburstonmytonguewithasweetnessIimmediatelywantedtosharewithmymom.51.WhydoestheauthorsayEarthDayisconnectedwithMother’sDay?A.BecauseMother’sDayalwaysfallsshortlyafterEarthDay.B.Tostressthatallthewomeninherfamilyareenvironmentalists.C.Tostresshowmuchhermothercaresabouttheenvironment.D.BecausehermothershowsherconcerntonatureonMother’sDay.52.WhichofthefollowingisNOTrelatedtoMom’sgreenlife?A.Rescuingabeetlefromacertaintragedy.B.Savingglassjarsemptycheesecontainers.C.SettingacaughtspiderfreeinthegardenD.Pickingdandelionsonbusystreets.53.Wecaninferfromthearticlethat______.A.theauthorrealizesthatsheshouldteachherchildrenbyexampleaswellB.theauthor’smotherknowshowtogetridofthewildlifeinheryardC.theauthorbelievesthatonlybylearningtoslowdowncanweenjoylifeD.theauthor’smotherusedtolecturehertoprotecttheenvironment.54.Whatcanbelearnedfromthelastparagraph?A.Tomatoesmaketheauthorthinkofhermother.B.Theauthorlikeseatingtomatoesplantedbyherself.C.Plantingtomatoesisawayofprotectingenvironment.D.Theauthorreallyappreciateshermother’steaching.

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

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

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

High-techmachineshavemadelifeeasierformillionsaroundtheworlD.Howeversomepeoplestillpreferlow-techwaysofdoingthings.Here’sanexampleofwhythisishappening.Youcanmicrowaveafrozenhamburgerin60seconds.Howeveritwon’ttasteasgoodasoneyoucookonthestovE.Andifyou’reinthatmuchofahurryyouprobablywon’ttaketimetotoastthebun.High-techcookingsavestimebutitdoesn’tmakeforbetter-tastingmeals.Mostpeoplegettheirnewsfromhigh-techsourcesliketelevisionortheInternet.Thishasmanyadvantages.Forexampleelectronicnewsismoreuptodatethannewspapersormagazines.It’salsomoreexcitingtoseeliveandvideotapednewseventsthanphotographs.Howevernewspapersandmagazineshavesomeimportantadvantages.Theygivemorebackgroundanddetails.Theyalsoletyoureadthepartsthatareimportanttoyouandskiptherest.Otherhigh-techtimesavershavesimilardisadvantages.Forexamplesmostpeopleusethephoneore-mailtostayintouchwithfriendsandfamilymemberswholiveinotherplaces.ButwhenyouusetheInternetorthephoneyoudon’talwaysthinkcarefullyaboutwhatyouaresayingandsometimesyouforgettheimportantthingsyouwanttocommunicatE.Similarlywhenyouword-processahomeworkassignmentinsteadofhandwritingityoucancheckyourspellingelectronicallyandputinfancyheadings.Howeversomestudentsaresobusywiththecomputerthattheydon’tpayenoughattentiontotheactualwordstheyarewriting.68.WhichofthefollowingstatementsisTRUEaccordingtothepassage?A.Thewriterlikeshigh-techcooking.B.Low-techcookingproducesbetter-tastingmeals.C.High-technewsprogramsalwayskeepyoureadingwhatisimportanttoyou.D.Handwrittenhomeworkisbetterthanword-processedhomework.69.Howdoesthewriterfeelabouthigh-techtool?A.Betterlatethannever.B.Easycomeeasygo.C.Everycoinhastwosides.D.Learntowalkbeforeyourun.70.Whatisthemainsubjectdiscussedinthetext?A.High-techvs.low-tech.B.Advantagesvs.disadvantages.C.Newspapersandmagazinesvs.televisionandtheInternet.D.Word-processingvs.handwriting.

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

Decision-makingunderStressAnewreviewbasedonaresearchshowsthatacutestressaffectsthewaythebrainconsiderstheadvantagesanddisadvantagescausingittofocusonpleasureandignorethepossiblenegative负面的consequencesofadecision.Theresearchsuggeststhatstressmaychangethewaypeoplemakechoicesinpredictableways.StressaffectshowpeoplelearnsaysProfessorMaraMather.Peoplelearnbetteraboutpositivethannegativeoutcomesunderstress.Forexampletworecentstudieslookedathowpeoplelearnedtoconnectimages影像witheitherrewardsorpunishments.Inoneexperimentsomeoftheparticipantswerefirststressedbyhavingtogiveaspeechanddodifficultmathproblemsinfrontofanaudience;intheothersomewerestressedbyhavingtokeeptheirhandsinicewater.Inbothcasesthestressedparticipantsrememberedtherewardedmaterialmoreaccuratelyandthepunishedmateriallessaccuratelythanthosewhohadn’tgonethroughthestress.Thisphenomenonislikelynotsurprisingtoanyonewhohastriedtoresisteatingcookiesorsmokingacigarettewhileunderstress–atthosemomentsonlythepleasureassociatedwithsuchactivitiescomestominD.Butthefindingsfurthersuggestthatstressmaybringaboutadoubleeffect.NotonlyarerewardingexperiencesrememberedbetterbutnegativeconsequencesarealsoeasilyrecalleD.Theresearchalsofoundthatstressappearstoaffectdecision-makingdifferentlyinmenandwomen.Whilebothmenandwomentendtofocusonrewardsandlessonconsequencesunderstresstheirresponsestoriskturnouttobedifferent.Menwhohadbeenstressedbythecold-watertasktendedtotakemorerisksintheexperimentwhilewomenrespondedintheoppositeway.Instressfulsituationsinwhichrisk-takingcanpayoffbigmenmaytendtodobetterwhencautionweighsmorehoweverwomenwillwin.Thistendencytoslowdownandbecomemorecautiouswhendecisionsareriskymightalsohelpexplainwhywomenarelesslikelytobecomeaddictedthanmen:theymaymoreoftenavoidmakingtheriskychoicesthateventuallyhardenintoaddiction.69.Wecanlearnfromthepassagethatpeopleunderpressuretendto______.A.keeprewardsbetterintheirmemoryB.recallconsequencesmoreeffortlesslyC.makeriskydecisionsmorefrequentlyD.learnasubjectmoreeffectively70.Accordingtotheresearchstressaffectspeoplemostprobablyintheir______.A.waysofmakingchoicesB.preferenceforpleasureC.toleranceofpunishmentsD.responsestosuggestions71.Theresearchhasprovedthatinastressfulsituation______.A.womenfinditeasiertofallintocertainhabitsB.menhaveagreatertendencytoslowdownC.womenfocusmoreonoutcomesD.menaremorelikelytotakerisks

Themostwidespreadfallacy谬论ofallisthatcoldsarecausedbycolD.Theyarenot.Theyarecausedbyvirusespassingonfrompersontoperson.YoucatchacoldbycomingintocontactdirectlyorindirectlywithsomeonewhoalreadyhasonE.IfcoldcausescoldsitwouldbereasonabletoexpecttheEskimostosufferfromthemforever.Buttheydonot.Andinisolatedarcticregionsexplorershavereportedpeoplearefreefromcoldsuntiltheycomeintocontactagainwithinfectedpeoplefromtheoutsideworldbywayofpackagesandmailsdroppedfromairplanes.DuringtheFirstWorldWarsoldierswhospentlongperiodsinthetrenches战壕coldandwetshowednoincreasedtendencytocatchcolds.IntheSecondWorldWarprisonersattheAuschwitzconcentrationcampnakedandstarvingwereastonishedtofindthattheyseldomhadcolds.AttheCommonColdResearchUnitinEnglandvolunteerstookpartinexperimentsinwhichtheygavethemselvestothediscomfortsofbeingcoldandwetforlongstretchesoftimE.Aftertakinghotbathstheyputonbathingsuitsallowedthemselvestobewithcoldwaterandthenstoodaboutdrippingwetinadrafty通风良好的room.Someworewetsocksalldaywhileothersexercisedintherainuntilclosetoexhaustion.NotoneofthevolunteerscamedownwithacoldunlessacoldviruswasactuallydroppedinhisnosE.IfthencoldandwethavenothingtodowithcatchingcoldswhyaretheymorefrequentinthewinterDespitethemostpains-takingresearchnoonehasyetfoundtheanswer.Oneexplanationofferedbyscientistsisthatpeopletendtostaytogetherindoorsmoreincoldweatherthanatothertimesandthismakesiteasierforcoldvirusestobepassedon.31.Thewriteroffered_______examplestosupporthisargument.A.4B.5C.6D.732.WhichofthefollowingisTRUEaccordingtothepassage?A.TheEskimossufferfromcoldsfromtimetotimE.B.ColdsarenotalwayscausedbycolD.C.Peoplesufferfromcoldsjustbecausetheyliketostayindoors.D.A.personmaycatchacoldbytouchingsomeonewhoalreadyhasonE.33.Arcticexplorersmaycatchcoldswhentheyare_______.A.workingintheisolatedarcticregionsB.writingreportsinterriblycoldweatherC.freefromworkintheisolatedarcticregionsD.comingintotouchagainwiththeoutsideworld34.VolunteerstakingpartintheexperimentsintheCommonColdResearchUnit_______.A.sufferedalotB.nevercaughtcoldsC.oftencaughtcoldsD.becameverystrong35.Thepassagemainlydiscusses_______.A.theexperimentsonthecommoncoldB.thefallacyaboutthecommoncoldC.thereasonandthewaypeoplecatchcoldsD.thecontinuedspreadofcommoncolds

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.

Somescientistssaythatanimalsintheoceanareincreasinglythreatenedbynoisepollutioncausedbyhumanbeings.Thenoisethataffectsseacreaturescomesfromanumberofhumanactivities.Itiscausedmainlybyindustrialunderwaterexplosionsoceandrillingandshipengines.Suchnoisesareaddedtonaturalsounds.Thesesoundsincludethebreakingoficefieldsunderwaterearthquakesandsoundsmadebyanimalsthemselves.Decibels分贝measuredinwateraredifferentfromthosemeasuredonlanD.A.noiseofonehundredandtwentydecibelsonlandcausespaintohumanears.Inwateradecibellevelofonehundredandninety­fivewouldhavethesameeffect.Somescientistshaveproposedsettinganoiselimitofonehundredandtwentydecibelsinoceans.Theyhaveobservedthatnoisesatthatlevelcanfrightenandconfusewhales.AteamofAmericanandCanadianscientistsdiscoveredthatloudnoisescanseriouslyinjuresomeanimals.Theresearchteamfoundthatpowerfulunderwaterexplosionswerecausingwhalesintheareatolosetheirhearing.Thisseriouslyaffectedthewhales'abilitytoexchangeinformationandfindtheirway.SomeofthewhalesevendieD.Theexplosionshadcausedtheirearstobleedandbecomeinfected感染.Manyresearcherswhoseworkdependsonoceansoundsobjecttoalimitofonehundredandtwentydecibels.Theysaysuchalimitwouldmeananendtoimportantindustrialandscientificresearch.Scientistsdonotknowhowmuchandwhatkindsofnoisesareharmfultooceananimals.HowevermanyscientistssuspectthatnoiseisagreaterdangerthantheybelieveD.Theywanttopreventnoisesfromharmingcreaturesintheocean.45.Accordingtopassagewhichofthefollowingisincreasinglydangeroustoseacreatures?A.Theman­madenoises.B.Thenoisesmadebythemselves.C.Thesoundofearthquakes.D.Thesoundoftheice­breaking.46.Whichofthefollowingisdiscussedinthesecondparagraph?A.Differentplaceswithdifferenttypesofnoises.B.Theveryhumanearssensitivetoalltypesofnoises.C.Thedecibelsmeasureddifferentlyonlandandintheocean.D.Theoceananimals'reactiontonoises.47.Wecanknowfromthepassagethatmanyscientiststhinkthatthenoiselimitofonehundredtwentydecibelswould________.A.preventthemfromdoingtheirresearchworkB.benefitthemalotintheirresearchworkC.dogoodtotheirhealthD.increasetheindustrialoutput48.Accordingtothepassagewhatwillscientistsmostprobablydointhefuture?A.TheywilltrytheirbesttodecreasenoisE.B.Theywillworkhardtocutdownnoisepollution.C.Theywillstudytheeffectofdifferentnoises.D.Theywillprotectanimalsfromharmfulnoises.

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

DNPisadangerouschemicalthat’sbeenlinkedto63deathsyetitisavailableonlineasaslimmingpill.It’susedintheproductionofpesticides杀虫剂chemicaldyesandwoodpreservatives.ButonmanywebsitesinAustraliait’ssoldasafat-burnerandasaneasywaytoloseweightwithoutdieting.Thechemicalisbeingusedindietpillsthatpromisetospeedupthebody’smetabolism新陈代谢andremovefat.Buttherapidweightlosscancomeatahighcost.MostrecentlyDNPslimmingpillswerelinkedtodeathof23-year-oldBritishmedicalstudentSarahHoustonwhodiedaftertakingpillscontainingDNPthatshehadorderedontheinternet.ThenightbeforeshediedHoustontoldherroommatesthatshefelthothereyesyellowedandherbreathingbecamedifficult.Thefollowingdayshewasfounddeadinherroom.HerparentsGeoffandGinaHoustonsaytheyhopetheirdaughter’sdeathwillbeawarningtoanyonewhowantstobuyDNPortoseeitasaquickwayforweightloss.AtthesuggestionofoneofthepoliceofficersIwentonGoogleandlookedupDNPGinasays.WhatIcameupwithwasalistofhorriblesymptomsandsideeffectsandit’sthesideeffectsthatkilledSarah.AstudyonDNPpublishedlastyearlinkedthechemicalto62deathsaroundtheworlD.TheFoodStandardsAgencyintheUKhasgivenawarningabouttherisksofDNPdescribingthedrugasextremelydangeroustohumanhealth.DNPworksbyincreasingthebody’sratetoburnenergyandfatbutthiscanleadtosymptomsincludingsicknessvomitingdizzinessrapidorheavybreathingheadachesandanirregularheartbeat.IntheworstcasesDNPcanleadtodeath.Peoplemaybelievethatbecausetheycanorderweight-lossproductsontheinternetandhavethemsenttoBritainthenthoseproductsmustbesafeandapproveD.ThisisclearlynottrueinthecaseofDNP.67.SomepeoplenowbuyDNPontheinternetto________.A.killothersB.preservefoodC.loseweightD.buildupbodies68.AccordingtothepassagethechemicalDNPis________.A.agoodwaytoloseweightwithoutdietingB.reallyveryharmfultoourbodiesC.onlyallowedtosellontheinternetD.afat-burnerwithoutsideeffects69.Fromthepassagewecaninfer________.A.DNPworkswellinlosingweightbutithasterriblesideeffectsB.Sarah’sparentsthinkSarah’sdeathhasnothingtodowithDNPC.thepoliceofficershasarrestedmanypeoplesellingDNPD.it’sillegaltobuyweight-lossproductsontheinternet70.Whatisthebesttitleofthepassage?A.DNPHasLedtoManyDeaths.B.DNPIsaDangerousChemical.C.DNPShouldn’tBeBoughtontheInternet.D.DNPHasTerribleSideEffect.

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

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

Whenhungerpainsstrikeasharkdoesitsimplyswimaroundaimlesslyuntilitcomesacrossameal?Scientistswhohavestudiedthedivingbehaviorofsharksturtlesfishandothermarinepredators食肉动物nowsuggestthattheseanimalsareabitmorestrategic策略的.TheyappeartofollowaspecialtypeofrandommotionknownasaLevywalk.Ecologistshavelongstudiedhowanimalsfindfoodwithsomeexploringwhethersimplerulescouldexplaintheirhuntingbehavior.In1996oneteamclaimedthatwanderingalbatrossesperformLevywalkswhicharecharacterizedbyaparticulardistributionofmovementlengthsthatincludemanyshort-distancejumpsandrarelongjumps.Othersthenfoundthatmanyanimalsusedthissearchstrategytoo.Butlastfallscientists—includingauthorsoftheoriginal1996report—reportedthattheoriginalalbatrossdatawereflawed.TheyalsocastdoubtonmostclaimsofLevywalksbyanimalscondemningthesmalldatasetsanalyzedandakeystatisticalmethodmanygroupsuseD.Thetableshaveturnedagainhowever.BehavioralecologistDavidSimsandhiscolleagueshavefoundevidenceofLevywalksfromdepth-sensingrecorderstheyhadfixedto31largemarinepredators.AspartoftheEuropeanCensusofMarineLifetheyanalyzedtheverticalmotioninmorethanamilliondivesastheanimalsobviouslyhuntedforfooD.Usingvariousstatisticalmethodstheyshowedthatduringthefood-huntingmostanimalsexaminedseemedtoperformverticalLevywalkswithmanyshortdiveswithanoccasionallongerdivesomehundredsofmetersdeep.Simsarguesthathisteam'svastdatasetsandtheuseofdiversestatisticalanalysesmaketheirstudythemostbelievableevidenceforLevy-likemovement.ThestudyisconvincingsaysecologistFredericBartumeusofPrincetonUniversity.Hesaysthathe'simpressedwiththeamountofdataSims'teamanalyzedandpredictsthatthestudywillshiftthedebatefromwhetheranimalsperformLevywalkstowhentheyusethisstrategyandwhy:It'sgoingtomakebiologistslesssuspiciousabouttheexistenceofthesepatterns.71.Whichofthefollowinganimalsmaynotbestudiedbytheecologists?A.Turtles.B.Tigers.C.Albatrosses.D.Whales.72.Theunderlinedwordflawedprobablymeans.A.stolenB.provedC.faultyD.missed73.WhydidsomescientistscastdoubtonLevywalksbyanimals?A.Becausetheydidn'tbelievewhatDavidSimssaiD.B.Becausetheauthorsofthe1996reportmadeaseriousmistakE.C.Becausethedatasetsotherscientistsanalyzedwerenotconvincing.D.BecausetheydoubtedaboutthestatisticalmethodotherscientistsuseD.74.Fromthepassagewecanlearnthat.A.DavidSimsisquiteconfidentoftheirresearchresultB.DavidSimsandhiscolleaguesdidn'tmakeenoughresearchC.FredericBartumeusisamemberofSims'researchgroupD.theexistenceofLevywalkisstilldoubtful75.Thepassagemainlywantstotellusthat.A.howmarineanimalsfindstheirmealsB.ecologistsmakemistakesfrequentlyduringtheirresearchC.LevywalkisakindofadvancedhuntingmethodD.weshouldbeseriousaboutscientificresearch

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

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

AnimalsseemtohavethesensetoeatwhentheyarehungryandtheydonoteatmorethantheirbodiesneeD.Ithasbeenshownthatratswillwhengivenachoiceoveraperiodoftimepreferwaterwithvitamins维生素towaterwithoutvitaminseventhoughthereisnodifferenceintasteorsmellbetweenthetwowaterbottles.Whenasweetsmellwasaddedtothevitamins-enrichedwatertheratsdidseemtodevelopatasteforitandkeptdrinkingitevenafterthevitaminswerechangedtotheclearwater.Intime最后howevertheybrokethehabitandwentbacktowherethenecessaryvitaminswerE.Inexperimentsbabiesof6to12monthsoldwereplacedinaroomwithawidechoiceofbabyfoodbeforethem.Theyweregivenwhateverfoodtheypointedtoorappearedinterestedin.Wearetoldthatatfirsttheyshowedsomeunusualeatinghabitsbutthatoveraperiodoftimetheymanagedtochooseawell-balanceddiet.Soinchoosingfoodratsandbabiesdoseemtoknowandactonwhat'sbestforthem.ClearlythereisakindofbodywisdomwhichhumanssoonlosE.MostofusdonoteataswiselyaswecoulD.Manyofourfoodpreferencesareculturallydeterminedandinfluencedbyoldhabits.Somepeopleeatfoxesdogsandblackbirdswhileweeatcowsandpigs.Sowhatpeopleeatandhowmanytheyeatseemtobegreatlyinfluencedbywhatisgoingaroundthem.53.Intheexperimentonratsasweetsmellwasaddedtotherats’drinkingwaterto.A.encourageratstodrinkvitamins-enrichedwaterB.findoutrats’preferenceinflavor口味C.testwhetherratsknowwhichdrinkisgoodforthemD.showthevitaminsaretasteless54.Talkingabouteatinghabitsbabiesandratsarejustlikeeachotherbecause.A.bothhavethewisdomtochooseabalanceddietB.bothpreferflavoredfoodanddrinkC.bothhavethesameeatinghabitsD.bothdevelopatasteforthesamekindsofflavors55Intheexperimentmentionedinthesecondparagraphbabieswere.A.givenmanychoicesofdrinksB.givenallkindsofbabyfoodC.placedandfedinahospitalD.trainedtoselectabalanceddiet56.Accordingtothepassagegrown-uppeople’seatinghabitsdifferfromthoseofbabiesinthat_______.A.theyknowbetterthanbabieswhatkindsoffoodaregoodfortheirhealthB.theyusuallycannotsaynotoallkindsofdeliciousfoodsC.theireatinghabitshavemuchtodowiththesocialandculturalcustoms文化习俗D.theyhavemorechoicesoffoodthanbabiesineatingpatterns

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.

Owningpetbirdsisnotjustfeedingthemwhennecessary.Youhavetobeveryresponsibleifyouhavedecidedtokeepbirdsaspets.Ifyoureallywanttoacquireacompanionthinkinadvancewhetheryouareabletohandleit.Dependingonwhatpetbirdyouaregoingtohaveandhowbigitisthecostisdifferent.Forexamplethecostofacomfortablecagethecostfornutritionalfoodandthemoneyforsomeadditionalthingsshouldbetakenintoconsideration.Therearealsosomeunexpectedcost.Forexamplewhenyourpetbirdgetssickyouhavetosendforavet兽医.Youmaythinkthatyoudonothavefreetimetohaveadogsoyou’dbetterhaveapetbirdbecauseitdoesn’trequirealotofattention.Youarewrong!Somepeopleevendonothavetimeforashortsleep.Theywillnothaveenoughtimeforpetseither.Forgoodbirdhealthitisveryimportanttohandlethemandplaywiththemasmuchasyoucan.Alsotherearealotofpeoplewhothinkthatbirdsdonotrequirealotofspaceandtheyarewrongagain.Theyalsoneedtoflysoifyoudonothavespaceforityou’dbetterreconsiderthethings.ButdonotforgetthegreatadvantageofhavingapetbirD.Intheanimalkingdombirdsranknearthetopwhenitcomestosmarts.Youcanhaveafriendforlifeifyoutakegoodcareofit.It’sarealcharacterandcanbringjoyandcolourinyourhomE.61.Whatisthetextmainlyabout?A.TheadvantagesofkeepingapetbirD.B.ThereasonsforkeepingapetbirD.C.ThingstoconsiderifyouwanttokeepapetbirD.D.DifferenttypesofpetsfordifferentpeoplE.62.Wecanlearnfromthesecondparagraphthat.A.youhavetobeveryrichtokeepapetbirdB.somecostofkeepingapetbirdisunnecessaryC.itisveryeasytocalculatethecostofhavingapetbirdD.thecostofhavingapetbirdisunpredictablesometimes63.Ifyouwanttohaveapetbirdyouneedn’tconsider.A.theknowledgeaboutapetbirdB.thecostofhavingapetbirdC.thetimetakentocareforapetbirdD.thespaceapetbirdneedstofly

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.

InGreekmythology神话fireisagiftformGodstolenfromZeus宙斯byPrometheusandhandedovertohumanssufferingfromcolD.WhatcouldbemorenaturalthansittingaroundabeautifulfireonawinternightatacampsiteintheBerkshires?Hardasitmaybetobelievethefireplace—longconsideredatrophy奖杯particularlyinacitylikeNewYork—isacquiringasocialshamE.Amongthosewhodesiretobeenvironmentallyresponsibleitisjoiningtheranksofbottledwaterandbighouses.SallyTreadwella51-year-oldpublicrelationsexecutiveinBooneN.C.saidnothingmakesherhappierthanbuildingafireonacoldwinternight.Butmostofthetimeshedoesn’tbecauseshefeelstooguiltyaboutthedamageitmaydototheenvironment.EverytimeshebuildsafireitcausesinnerconflictshesaiD.It’saguiltypleasure.ThesmokefromafiresmellsverynicesaidDianeBaileyaseniorscientistwiththeNaturalResourcesDefenseCouncilinSanFrancisco.Butitcancausealotofharm.Thetinyparticles颗粒cancauseillnessandcancrossintothebloodstreamcausingheartattacksaswellasworseningotherconditions.Growingconcernsabouttheairpollutionandhealthproblemscausedbysmokefromwoodfiresareurginganumberofareasacrossthecountrytopasslawsregulatingthem.Idahooffersataxcuttopeoplewhoreplaceuncertified不合格的woodstoveswithgreenerones;SanJoaquinCountyinCaliforniaforbidssellingahomeunlessitswoodstoveisreplacedwithanE.P.A.certifiedoneandPaloAltoandothergovernmentsinCaliforniaforbidwood-burningfireplacesinnewconstruction.CertainlymanythinkotherwisE.InanycasemostfireplacesareusedfartooinfrequentlytocauseanyrealdamagetotheenvironmentsaidStephenSearsthevicepresidentoftheBrickIndustryAssociationvoicinganopinionsharedbysomE.Perhapsnotcoincidentallysalesofwood-burningequipmentdroppedto235000in2009from800000in1999accordingtotheBrickIndustryAssociation.Italsoreportsthatapproximately35000fireplaceswereinstalledintheUnitedStatesin2009comparedto80000in2005.Certainlythosenumbersreflecttheeconomicslowdownbutthemayalsobeaffectedbygrowingmixedfeelingstowoodfries.67.Wecaninferfromthe2ndparagraphthat________.A.bighousesarenotconsideredenvironmentallyfriendlyB.bottlewaterisagoodcompanionforafireplaceC.afireplaceisviewedasasignofsuccessD.peopleinNewYorkarelaughedatfortheirtradition68.Sally’sinnerconflictinthe3rdparagraphresultedfrom________.A.herloveforthefireplaceB.thedamagetotheenvironmentC.theconcernaboutherhealthD.hermixedemotionfrothefireplace69.Intermsoftheregulationsaboutwoodfireswecanlearnfromthepassagethat_______.A.uncertifiedfireplacesareforbiddeninIdahoB.somepeopleareagainstthewoodfirecontrollingregulationsC.onlyenergy-efficientwoodstovescanbeusedintheUSD.allthepeoplesupportmeasurestakentocontroltheuseoffireplaces70.Whatistheauthor’spurposeinwritingthepassage?A.TourgepeopletoburnlesswoodB.Todiscusswood-burning’simpactC.Tothrowlightonthecausesofthefireplace’sdeclineD.Toindicatethecoolingloveforthefireplace

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

TheOceanInstitutewelcomespeopletotheCityofDanaPoint’sFestivalofWhalescelebrationonbothweekends.Theeventcelebratesthemigration迁徙ofthewhalesoffourcoast.RespectedoceanscientistsoftheoceanInstituteintroducevisitorstotheworldofwhales.Thespeakersarearrangedasthefollowing.SaturdayMarch51230pmDrGwenGoodmanlowefromCalifomiaStateUniversityisafull-timelecturerintheDepartmentofBiologyandadvisesstudentsworkingondegreesinmarine海洋的biology.ShereceivedherdoctorateinzoologyfromtheUniversityofHawaii-Honolulu.SundayMarch61230pmMattLesliefromScrippsInstituteofOceanographyhasstudiedwhalesoffthecoastofAustralia.Someofhiscurrentresearchprojectsincludepopulationstructureanalysisofwhalesusingperformancetesting.Hewilllectureonguidesfortreatmentofmarineanimals.SaturdayMarch121230pmDrMerkensfromScrippsInstituteofOceanographywillpresentherlatestresearchonhowsoundormusiccanbeusedasameanstoidentifycharacteristicsofwhalesandtofindouthowwhalescommunicatewithoneanotherintheenvironment.SundayMarch132pmRobertL.PitmanisamarineecologistworkingfortheNationalMarineFishingService.Hebeganhiscareer35yearsagostudyingseabirdsandwhalesandspendsmuchofhistimeatseaonvesselsatlocationsallovertheworld.HismaininterestistheecologyoftheAntarctickillerwhale.TheFestivalwillallowvisitorstoknowaboutnewdiscoveriesinmarineanimalresearchandtoexploreavarietyofinformationonwhales.Visitorswillhavetheopportunitytolistentounderwaterwhalesoundsandenjoyhands-onactivities.GuestswilltourthetallshipPilgrim.Cost$6.50adults$4.50childrenages4-12.Formoreinformationpleasevisitwww.ocean-institutE.orgorcall949496-2274.66.Whatdoweknowfromthepassage?A.AlargenumberofscientistswillattendtheFestivalofWhalescelebration.B.TheFestivalofWhalescelebrationwillbeheldfromMarch5toMarch13.C.TheOceanInstitutewillholdtheCityofDanaPoint’sFestivalofWhales.D.Fouroceanscientistswilltellvisitorssomeinformationaboutwhales.67.Whattimeshouldyouattendthefestivalifyouwanttoleamhowtotreatmarineanimals?A.At1230pmonSaturdayMarch5.B.At1230pmonSundayMarch6.C.At1230pmonSaturdayMarch12.D.At2pmonSundayMarch13.68.Ifyouonlyhavetimeafterlpmonweekendsyoucanlistentoalecturedeliveredby_________.A.GwenGoodmanloweB.MartLeslieC.MerkensD.RobertL.Pitman69.WhichofthefollowingthingscanNOTvisitorsdoaccordingtothepassage?A.Haveclosecontactwithunderwaterwhales.B.Leamaboutnewdiscoveriesinmarineanimalresearch.C.Exploresomeinformationonwhales.D.TourthetallshipPilgrim.70.Ifacoupleandtheir13-year-oldchildattendtheeventtheywouldneedtopay_________.A.13dollarsB.17.50dollarsC.19.50dollarsD.11dollars

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

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.

Whatwillpeopledieof100yearsfromnowIfyouthinkthatisnotasimplequestionyouhavenotbeenpayingattentiontotherevolutionthatistakingplaceinbio­technology生物技术.WiththehelpofnewmedicinethehumanbodywilllastaverylongtimE.Deathwillcomemainlyfromaccidentsmurderandwar.Today'sleadingkillerssuchasheartdiseasecancerandagingitselfwillbecomedistantmemories.IndiscussionoftechnologicalchangestheInternetgetsmostoftheattentionthesedays.Butthechangeinmedicinecanbetherealtechnologicaleventofourtimes.HowlongcanhumansliveHumanbrainswereknowntodecidethefinaldeath.Cellsarethebasicunitsofalllivingthingsanduntilrecentlyscientistsweresurethatthelifeofcellscouldnotgomuchbeyond120yearsbecausethebasicmaterialsofcellssuchasthoseofbraincellswouldnotlastforever.ButtheupperlimitswillbebrokenbynewmedicinE.Sometimebetween2050and2100medicinewillhaveadvancedtothepointatwhichevery10yearsorsopeoplewillbeabletotakemedicinetorepairtheirorgans.Themedicinemadeupofthebasicbuildingmaterialsoflifewillbuildnewbraincellsheartcellsandsoon－inmuchthesamewayourbodiesmakenewskincellstotaketheplaceofoldones.ItisexcitingtoimagingthattheadvanceintechnologymaybechangingthemostbasicconditionofhumanexistencebutmanytechnicalproblemsstillmustbecleareduponthewaytothiswonderfulfuturE.68.Accordingtothepassagehumandeathisnowmainlycausedby.A.diseasesandagingB.accidentsandwarC.accidentsandagingD.heartdiseaseandwar69.Humansmaylivelongerinthefuturebecause.A.heartdiseasewillbefarawayfromusB.humanbrainscandecidethefinaldeathC.thebasicmaterialsofcellswilllastforeverD.humanorganscanberepairedbynewmedicine70Wecanlearnfromthepassagethat.A.humanlifewillnotlastmorethan120yearsinthefutureB.humanshavetotakemedicinetobuildnewskincellsnowC.muchneedstobedonebeforehumanscanhavealongerlifeD.wehavealreadysolvedthetechnicalproblemsinbuildingnewcells

Atnightbatsflythroughtheaircatchinghundredsofinsectsandothersmallanimals.Butduringthedaytheyhardlymoveatall.Insteadbatspassthetimehangingupsidedownfromasecretspot.Thereareacoupleofreasonswhybatsrestthisway.Firstofallitputstheminapositionfortakeoff.Unlikebirdsbatscan’tflyintotheairfromthegrounD.Theirwingsdon’tproduceenoughlifttotakeofffromadeadstopandtheirhindlegsaresosmallandunderdevelopedthattheycan’truntobuildupthenecessarytakeoffspeeD.Insteadtheyusetheirfrontclawstoclimbtoahighspotandthenfallintoflight.Duringthehourswhenmostenemiesareactivebatsgatherwherefewanimalswouldthinktolookandmostcan’treach.Thisallowsthemtodisappearfromtheworlduntilnightcomesagain.There’salsolittlecompetitionfortheserestingspotsasotherflyinganimalsdon’thavetheabilitytohangupsidedown.Batshaveauniquephysiologicaladaptationthatletsthemhangaroundthiswaywithoutusinganyenergy.Foryoutoholdyourfistaroundanobjecttightyoucontract紧缩severalmusclesinyourarmwhichareconnectedtoyourfingersbytendons腱asonemusclecontractsitpullsatendonwhichpullsoneofyourfingerscloseD.A.bat’stalons爪closeinthesamewayexceptthattheirtendonsareconnectedonlytotheupperbodynottoamusclE.Tohangupsidedownabatpullsitsclawsopenwithothermuscles.Togetthetalonstotakeholdofthesurfacethebatsimplyletsitsbodyrelax.Theweightoftheupperbodypullsdownonthetendonsconnectedtothetalonscausingthemtoholdtight.Thereforethebatdoesn’thavetodoanythingtohangupsidedown.59.Batshangupsidedownbecause________.A.theyhaven’tdevelopedapairofstrongclawsB.theycan’tstarttoflyfromthegrounddirectlyC.theyhavenohindlegstosupporttheirbodyD.theycan’tfindquietplacestostayduringtheday60.Thethirdparagraphtellsusthatbats’hangingupsidedown_______.A.istosavetheirenergyfornightmovementB.isawaytofightagainstflyinganimalsC.isagreatwaytohidefromdangerD.isaskilltocompetefortheflyingplaces61.Whycanbatshangupsidedowneasily?A.Becausetheirupperbodyislight.B.Becausetheyhavestrongmuscles.C.Becausetheirtalonsarelinkedtomusclestightly.D.Becausetheirtendonsarelinkedtotheirupperbody.62.Whatisthepassagemainlyabout?A.Thelivinghabitsofbats.B.Howandwhybatshangupsidedown.C.Theimportanceofbats’hangingupsidedown.D.Howbatsusetheirenergyatnight.

Theweatherisgettinghotterandyou’llbegettingthirstierplayingbasketballorridinghomefromschool.A.colddrinkmaybejustthething.Butbecarefulwhatyoupourdownyourthroat.Somethingthatlookscoolmaynotbegoodforyourhealth.Thereareplentyofso-calledenergydrinksonthemarket.MostofthemhaveanattractivecolourandcoolnamE.Theirnutritionlistalsocontainsvariousthingsfromvitaminstoginseng.Soundsgreat!ButafteracarefulcheckyoumayfindthatmostenergydrinkscontainhighlevelsofcaffeinE.Thesedrinksaretypicallyaimedatyoungpeoplestudentsbusypeopleandsportsplayers.MakerssometimessaytheirdrinksmakeyoubetteratsportsandcankeepyouawakE.Butbecarefulnottodrinktoomuch.Caffeineraisesyourheartbeat.BecauseofthistheInternationalOlympicCommitteehaslimitedtheirusE.TheamountofcaffeineinmostenergydrinksisatleastashighasinastrongcupofcoffeeorstrongteA.ResearchbyAustralianscientistshasfoundthatmanyteenagersareaffectedbycaffeinE.Theresultsoftheirsurveyshowthat27percentofboysaged8-12takeinmorecaffeinethantheirparents.Therearepotentialhealthriskslinkedtoenergydrinks.Justonecanofenergydrinkcanmakeyounervoushavedifficultysleepingandcanevencauseheartattacks.58.Generallypeoplewouldliketo.A.takevitaminsB.eatginsengC.haveacolddrinkD.haveameal59.TheInternationalOlympicCommitteelimittheuseofcaffeinebecause.A.itmakesyoubetteratsportsB.itcankeepyouawakeC.itcanmakeyounervousD.itmakeyourheartbeatfast60.Thewritermentionsthefactthat27percentofboysaged8-12takeinmorecaffeinethantheirparentstoshowthat.A.caffeinehasaneffectonmanyteenagersB.parentsshouldtakeinmorecaffeineC.thecaffeineproblemisnotseriousD.thegrown-upstakelesscaffeinethanchildren

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

Batteriescanpoweranythingfromsmallsensorstolargesystems.Whilescientistsarefindingwaystomakethemsmallerbutevenmorepowerfulproblemscanarisewhenthesebatteriesaremuchlargerandheavierthanthedevicesthemselves.UniversityofMissouriMUresearchersaredevelopinganuclearenergysourcethatissmallerlighterandmoreefficient.Toprovideenoughpowerweneedcertainmethodswithhighenergydensity密度saidJaeKwonassistantprofessorofelectricalandcomputerengineeringatMU.Theradioisotope放射性同位素batterycanprovidepowerdensitythatismuchhigherthanchemicalbatteries.Kwonandhisresearchteamhavebeenworkingonbuildingasmallnuclearbatterypresentlythesizeandthicknessofapennyintendedtopowervariousmicro/nanoelectromechanicalsystemsM/NEMS.AlthoughnuclearbatteriescancauseconcernsKwonsaidtheyaresafe.Peopleheartheword‘nuclear’andthinkofsomethingverydangeroushesaidHowevernuclearpowersourceshavealreadybeensafelypoweringavarietyofdevicessuchaspace-makersspacesatellitesandunderwatersystems.Hisnewideaisnotonlyinthebattery’ssizebutalsoinitssemiconductor半导体.Kwon’sbatteryusesaliquidsemiconductorratherthanasolidsemiconductor.Thekeypartofusingaradioactivebatteryisthatwhenyouharvesttheenergypartoftheradiationenergycandamagethelatticestructure晶体结构ofthesolidsemiconductorKwonsaidByusingaliquidsemiconductorwebelievewecanminimizethatproblem.TogetherwithJ..DavidRobertsonchemistryprofessorandassociatedirectoroftheMUResearchReactorKwonisworkingtobuildandtestthebattery.Inthefuturetheyhopetoincreasethebattery’spowershrinkitssizeandtrywithvariousothermaterials.Kwonsaidthatbatterycouldbethinnerthanthethicknessofhumanhair.67.Thetextismostprobablya________.A.sciencenewsreportB.bookreviewC.newspaperadD.sciencefiction68.Liquidsemiconductorisusedto_________.A.getridoftheradioactivewasteB.testthepowerofnuclearbatteries.C.decreasethesizeofnuclearbatteriesD.reducethedamagetolatticestructure.69.AccordingtoJaeKwonhisnuclearbattery_______.A.usesasolidsemiconductorB.willsoonreplacethepresentones.C.couldbeextremelythinD.haspassedthefinaltest.70.JaeKwongaveexamplesinParagraph4_________.A.toshowchemicalbatteriesarewidelyapplied.B.tointroducenuclearbatteriescanbesafelyused.C.todescribeanuclear-poweredsystem.D.tointroducevariousenergysources.

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

Doyouwanttowriteyourpassworddownsothatnoonecanseeitordoyouwanttosendsomeoneasecretmessage?KnowinghowtomakeaninvisibleinkmessagewillhaveyoufeelinglikeasecretagentinnotimE.TheseareinstructionsformakinginvisibleinkusingbakingsodA.Difficulty:EasyTimerequired:A.fewminutesWhatyouneed:BakingsodaPaperWaterLightbulbPaintbrushMeasuringcupPurplegrapejuiceHere'show:Thereareatleasttwomethodsofusingbakingsodaasinvisibleink.MixequalamountsofwaterandbakingsodA.Useapaintbrushtowriteamessageontowhitepaperusingthebakingsodasolution溶液asink.Allowtheinktodry.OnewaytoreadthemessageistoholdthepaperuptoaheatsourcesuchasalightbulB.Thebakingsodawillcausethewritinginthepapertoturnbrown.ThesecondwaytoreadthemessageistopaintoverthepaperwithpurplegrapejuicE.Themessagewillappearinadifferentcolor.Tips:Ifyouareusingtheheatingmethodavoidburningthepaper.Bakingsodaandgrapejuicereactinanacid-base酸碱reactionproducingacolorchangeinthepaper.Grapejuiceconcentrate浓缩物resultsinamorevisiblecolorchangethanregulargrapejuicE.56.isnotneededformakinginvisibleink.A.BakingsodaB.PaperC.WaterD.Ink57.What'sthefunctionofthepaintbrush?A.TodrawapicturE.B.Toallowtheinktoappear.C.Towriteamessageontothewhitepaper.D.Tohelptheinkdry.58.Howcanyoureadthemessageininvisibleinkeasily?A.readitinthedaytimeB.readitnearaheaterC.PutitinhotwaterD.putitinafridge59.Whywillthemessageappearinadifferentcolorinthesecondwaytoreadthemassage?A.BecausethereisenoughgrapejuicE.B.BecausebakingsodareactswithgrapejuicE.C.Becauseoftheuseofwater.D.Becauseofthespecialpaper.60.Fromtheprocesswecanknowthatmakinginvisibleinkis.A.veryhardB.notdifficultC.alittledifficultD.noteasy

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.

WhentwoBangsmeetSHELDONCooperisascientificgeniusonthepopularAmericanTVshowTheBigBangTheory生活大爆炸.Hefinallymethismatchlastyear:StephenHawking.ThisisnotthefirsttimethatthescientisthasappearedonTV.HehasalsobeenonStarTrekin1987andTheSimpsonsin1989.Eachtimeheplayedhimself.Hawking71isperhapstheworld’smostfamousscientistafterAlbertEinstein.HehasspenthiswholelifestudyingthebeginningandtheendoftheuniverseincludingtheBigBang宇宙大爆炸theory.TheBigBangtheoryexplainstheearlydevelopmentoftheuniversE.Accordingtothetheoryabout13.7billionyearsagoeverythingwasallsqueezedtogetherinatinytightlittleballandthentheballexplodeD.TheresultsofthatexplosionarewhatwecalltheuniversE.HawkinghasalwaystriedtomakesciencemorepopularwithpeoplE.Hisbook:A.BriefHistoryofTimewaspublishedin1988.InthebookheshareshisunderstandingoftheuniverseinsimplelanguagE.ThebooktriestoexplainmanysubjectsabouttheuniversetocommonreadersincludingtheBigBangblackholesandlightcones光锥.Hawking’sachievementsareevengreaterifyouthinkabouthisdisability.Whenhewas21Hawkingcaughtabadillnessthatslowlystoppedhimfrommovingortalking.NowhesitsonawheelchairwithacomputerbyhissidE.Tocommunicatehemovestwofingerstocontrolthecomputer’smousE.Hechooseshiswordsfromthescreenwhicharethenspokenbyavoicesynthesizer合成器.HawkingalsobelievesthattheremightbealiensinspacE.Howeverhebelievestheyareprobablyverydangeroussoweshouldnotlookforthem.Iimaginetheymightexistinverybigships...havingusedupalltheresourcesfromtheirhomeplanetHawkingsaidinaBritishdocumentarynamedIntotheUniversewithStephenHawking.40.WhatdoesthetwoBangsinthetitlereferto?A.ThedirectorofTheBigBangTheoryandthefounderofit.B.ThedirectorandtheactorofTheBigBangTheory.C.ThefounderoftheBigBangtheoryanditsspreader.D.ThescientificgeniusonTVshowandtheonealiveinreallifE.41.ActinginTheBigBangTheoryisHawking’s_____timeonTV.A.firstB.secondC.thirdD.fourth42.AccordingtoParagraph5HawkingwrotethebookA.BriefHistoryofTimeespeciallyfor_____.A.scientistswhostudytheuniverseB.peoplewhoknowalotabouttheuniverseC.peoplewhoknowlittleabouttheuniverseD.peoplewhoonlyknowsimplelanguage43.TheBigBangtheorymainlyexplains_____.A.howtheuniversestartedB.whattheuniverseislikeC.howoldtheuniverseisD.howtheuniverseexploded44.AccordingtothepassagewhichofthefollowingaboutHawkingisTRUE?A.Hewasbornwithadisability.B.HeusesacomputertocommunicatE.C.Hebelievesaliensareourfriends.D.Heencouragespeopletolookforaliens.

Ifyoutalktotheplantstheywillgrowfasterandtheeffectisevenbetterifyou’reawoman.ResearchersatRoyalHorticulturalSocietycarriedoutanexperimenttofindthatthevoiceofawomangardenermakesplantsgrowfaster.TheexperimentlastedamonthandbytheendofthestudyscientistsmanagedtodiscoverthattomatoplantsgrewuptwoinchestallerwhenwomengardenerstalkedtotheminsteadofmalE.SarahDarwinwastheonemakingtheplantsregisteredthebestgrowth.HervoicewasthemostinspiringforplantsthanthoseofnineothergardenerswhenreadingapassagefromTheOriginofSpecies.Thegreat-great-granddaughterofthefamousbotanist植物学家CharlesDarwinfoundthatherplantgrewabouttwoinchestallerthantheplantofthebestmalegardener.ColinCrosbieGardenSuperintendentatRHSsaidthatthefindingcannotyetbeexplaineD.Heassumesthatwomenhaveagreaterrangeofpitch音高andtone音调whichmighthaveacertaineffectonthesoundwavesthatreachtheplant.SoundwavesareanenvironmentaleffectjustlikerainorlightsaidMrGrosbiE.ThestudybeganinAprilatRHSGardenWisleyinSurvey.Scientistsstartedwithopenauditions听力forthepeoplewhowereaskedtorecordpassagesfromJohnWyndham'sTheDayoftheTriffidsShakespeare’sA.Midsummer'sNightDreamandDarwin'sTheOriginofSpecies.Afterwardsresearchersselectedanumberofdifferentvoicesandplayedthemto10tomatoplantsduringaperiodofamonth.Eachplanthadheadphones耳机connectedtoit.Throughtheheadphonesthesoundwavescouldhittheplants.Itwasdiscoveredthatplantsthatlistenedtofemalevoicesonaveragegrewtallerbyaninchincomparisontoplantsthatheardmalevoices.MissDarwinsaidIthinkitisanhonortohaveavoicethatcanmaketomatoesgrowandespeciallyfittingbecauseforanumberofyearsIhavebeenstudyingwildtomatoesfromtheGalapagosIslandattheNaturalHistoryMuseuminLondon.55.Whatdoesthepassagetalkabout?A.Plantsenjoymen’svoicesthanwomen’s.B.A.botanicalexperimentinamuseum.C.Voice’sinfluenceonplantgrowing.D.Strangephenomenon现象atRoyalHorticulturalSociety.56.Whatdoestheunderlinedsentenceinparagraph4mean?A.Plantsneedsoundaswellasrainandlight.B.Soundisbasicfortheplanttogrow.C.Soundhasagoodeffectasrainorlightdoes.D.Plantscan’tlivewithoutsoundrainorlight.57.SarahDarwinismostlikelyaan_____.A.botanistB.gardenerC.astronomerD.environmentalist58.Whatcanwelearnfromthepassage?A.TheexperimentendedinMay.B.Scientistcanexplainthefindingsclearly.C.Plantsenjoylisteningtothepassagesfrommasterpieces.D.Thefindingsareofgreatimportancetohumanbeings.

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.

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.

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.

Astronomers天文学家saytheyareonthepointoffindingplanetslikeEarthorbitingotherstarswhichisakeystepindeterminingifwearealoneintheuniversE.AtopNASAofficialandotherleadingscientistssaythatwithinfourorfiveyearstheyshoulddiscoverthefirstEarth-likeplanetwherelifecoulddevelopormayhavealready.A.planetclosetothesizeofEarthcouldevenbefoundsometimethisyear.AttheannualAmericanAstronomicalSocietyconferencethisweekeachdiscoveryinvolvingso-calledexoplanets—thoseoutsideoursolarsystem—pointedtothesameconclusionQuietplanetslikeEarthwherelifecoulddevelopprobablyareplentiful.NASA’sDewKeplertelescopeandalotofnewresearchfromthesuddenlyhotandcompetitiveexoplanetfieldcausednoticeablebuzzatthemeeting.Scientistsaretalkingaboutbeingatanincrediblespecialplaceinhistoryandclosertoansweringthequestion.Arewealone?Forthefirsttimethere’sanoptimismthatsometimeinourlifetimeswe’regoingtogettothebottomofthatsaidSimonWordenanastronomerwhoheadsNASA’sAmesResearchCenter.IfIwereabettingmanwhichIamIwouldbetwe’renotalonE.ThesearebigquestionsthatreflectuponthemeaningofthehumanraceintheuniversethedirectoroftheVaticanObservatorytheRev.JoseFunessaidWednesdayinaninterviewatthisweek’sconferencE.WordentoldTheAssociatedPress:Iwouldcertainlyexpectinthenextfourorfiveyearswe’dhaveanEarth-sizedplanetinthehabitable可居住的zonE.49.Whatisveryimportantindeterminingifwearealoneintheuniverse?A.FindinganEarth-likeplanet.B.Orbitingotherstars.C.Developingnewtelescopes.D.Findingmoreexoplanets.50.What’sanexoplanet?A.It’saplanetlikeEarth.B.It’saplanetoutsideoursolarsystem.C.It’saplanetorbitingthesun.D.It’saplanetwherelifehavedevelopeD.51.Theunderlinedphrasegettothebottomofprobablymeans__________.A.understandfullyB.makefulluseofC.searchforD.domoreresearchon52.Fromthepassagewecanlearnthat__________.A.anEarth-likeplanethasbeenfoundB.it’sbeenprovedwearenotaloneintheuniverseC.JoseFuneshasfoundthemeaningofthehumanraceintheuniverseD.thediscoveryofanEarth-likeplanetcouldhappeninthenearfuture

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

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

HunanSatelliteTVislosingitsleadingposition?There’sreasonforsayingthis.In2012therealitytalentshowthevoiceofChinaontheZhejiangTelevisionbecamethemostpopularprograminChinA.Thereaonforitspopularitywasreallybecauseitsexcellentquality?Orcanweassumethatwithoutanyopponent对手wecan’ttellacontestant参赛者iswinningbecauseheisreallytalentedorbecausethere’snocomparison?TheadministrativedepartmentreallycontributedalotinthepopularityofthevoiceofChina.Inthepasttherewasnootherdraftshows选秀节目rankedashighasSuperGirlandSuperBoy.EventhoughthereweresomedraftshowswhichseemedtosharethepopularityitneverturnedouttruE.AlltheotherdraftshowswereshodowedbytheonesonHunanTV.OneexamplewasthatsincedraftshowsofHunanTVwerebroadcastonFridaynightthedraftshowsofotherstationswereshiftedtoSaturdayorSunday.HoweverHunanTVdidn’tgettheirpermissionforbroadcastingshowsin2012.AndifthiswerenotbadenoughSARFTdidagreatfavorforit.SARFTissuedaregulationsayingthatalldraftshowsshouldbebroadcastafter10:30pmatnight.ZhejiangTVdeclaredlongbeforetheregulationthatsincewasnoaudition海选noPKnoriseinranknovotingnochampionitsprogramwasneveradraftshow.Soin2012alltheopponentsofZhejiangTVhadtobroadcasttheirdraftshowsafter10:30pmwhilethevoiceofChinawaspermittedtobebroadcastinprimetimE.Ifyoureallythinkaboutitthere’snoesentialdifferentbetweenadraftshowandthevoiceofChina.Italsoselectedpeoplefromalloverthecountryhowdidtheysaythisweredifferentfromadraftshow?NoPKreally?PKdoesn’tmeanoneversusone！A.teamversusateamiscalledPKtoo.Andnoriseinrank?isjustaswitchofconceptsbecauseattheendofeverygamesomeleftthestageandsomestayeD.IftherewasreallynochampionhowcometherewasonlyonegoodvoiceofChinaatthefinalround?Allthesewererisinginrankindisguise隐性.UndersuchcimcumstancethevoiceofChinaevengotpraisE.Wearenotsayingthatitisnotagoodshow:wearesayingthatthere’sregretabouttheshowsinceithadnoopponent.58.ThefollowingfactorsareimportantinmakingthevoiceofChinapopularEXCEPT______.A.theuniquequalityofthevoiceofChinaB.thepolicysupportfromSARFTandtheadministrativedepartmentC.thefavorablebroadcastingtimE.D.theshortageofgoodopponents59.Thepassagemainlytellsus______A.thevoiceofChinaisnotarealdraftshowB.theadvantagesofthevoiceofChinaC.thedraftshowsofHunanSatelliteTVstillcauseourattentionD.thereasonsforHunanSatelliteTVislosingitsleadingposition60.What’stheauthor’sattitudetowardsthevoiceofChina?A.supportiveB.hopefulC.doubtfulD.optimistic

BasedonnewanalysiswearerapidlyapproachingmajorclimatechangeandtheeffectsonsocietyandtheenvironmentcouldbequiteseverE.Geographerspredictthatwithinthenexteightyyearscurrentworldclimatezonescouldshiftandsomecouldcompletelydisappear.Polarregionswillgetcolderwhiletropicalregionswillgetevenhotterforcinganimalstomigrate迁徙north.Climatechangeslikethesecouldleadtothespreadofdiseases.TropicalstormsandhurricaneswillnotonlyincreasebutmayalsobecomemoreintensE.Ifthechangescometooquicklyanimalandplantspeciesmaynotbeabletoadaptfastenoughandcoulddisappear.AccordingtoScienceDailyanewstudypredictsthatbytheyear2100manyoftoday’sfamiliarclimateswillbereplacedbyclimatesunknownintoday’sworlD.Itisurgentthatwereducetherisksofthesefar-reachingconsequencesforthewholeworlD.TheplanetitselfhasbeenshowingsignsofchangE.In2004aserioustsunamicreatedbyamajorearthquakekilledthousandsinSumatraandin2008thousandsdiedinChinabecauseofanothersevereearthquakE.Egyptwashitin2009withamajorearthquakeandHaitiwasdevastatedin2010byyetanothermassiveearthquakE.Withinjustthelastfewmonthsnewreportsfromaroundtheworldhavebeencominginandmostagreethatourclimatesituationismuchworsethanpreviouslythought.Atthispointitdoesn’tmatterwhatiscausingitbutratherwhatcanbedoneaboutit.What’smoreourworldisgettingmoreandmoreunstableeveryyear.ThereiswarandthreatofwareverywherE.Naturaldisastersarebecomingmorefrequentandserious.Howeverotherplanetsareexperiencingglobalwarmingaswellasourownandsomescientistsbelievetheremaybesomeconnectionbetweenthis.NooneknowsanythingforsureatthispointbecausethereissimplynotenoughdatA.39.WhichofthefollowingwouldbethebesttitleforthePassage?A.Waystoprotectourplanet.B.SolutionstoclimatechangE.C.BepreparedforclimatechangE.D.Climatechangeanditseffects.40.Whatistheauthor’spurposeinusingtheexamplesofearthquakes?A.ToshowthedamageearthquakescauseD.B.Toremindpeopletopreventfutureearthquakes.C.Toshowmajorchangesaretakingplaceontheplanet.D.TotellusmoreearthquakeswillhappeninthefuturE.41.WhatdoestheunderlinedworddevastatedinParagraph3mean?A.SeparateD.B.DestroyeD.C.RemoveD.D.AffecteD.42.WhatcanbeinferredfromthePassage?A.Animalsandplantswon’tdieoutaslongasclimatechangesslowly.B.There’senoughdataforustopredictthefutureofclimatechangE.C.Theworldisgettingmoreunstablebecauseofanimalmigration.D.TheearthisnottheonlyplanetthatisexperiencingclimatechangE.

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.

Doctorssayangercanbeanextremelydamagingemotionunlessyoulearnhowtodealwithit.Theywarnthatangercanleadtoheartdiseasestomachproblemsheadachesemotionalproblemsandpossiblycancer.AngerisanormalemotionthatweallfeelfromtimetotimE.Somepeopleexpressangeropenlyinacalmreasonableway.Othersburstwithangerandscreamandyell.ButotherpeoplekeeptheirangerinsidE.Theycannotorwillnotexpressit.Thisiscalledrepressinganger.Foryearsmanydoctorsthoughtthatrepressingangerwasmoredangeroustoaperson’shealththanexpressingit.Theysaidthatwhenapersonisangrythebrainreleasesthesamehormones荷尔蒙.Theyspeedtheheartrateraisebloodpressureorsugarintothebloodetc.Ingeneralthepersonfeelsexcitedandreadytoact.Somedoctorssaythatbothrepressingandexpressingangercanbedangerous.TheybelievethatthosewhoexpressangerferociouslymaybemorelikelytodevelopheartdiseaseandtheybelievethatthosewhokeeptheirangerinsidemayfaceagreaterdangerofhighbloodpressurE.Doctorssaythesolutionislearninghowtodealwithanger.Theysaythefirststepistoadmitthatyouareangryandtorecognizetherealcauseoftheangerandthendecideifthecauseisseriousenoughtogetangryabout.IfitistheysayDonotexpressyourangerwhileangry.Waituntilyourangerhascooleddownandyouareabletoexpressyourselfcalmlyandreasonably.Doctorssaythatagoodwaytodealwithangeristofindhumorinthesituationthathasmadeyouangry.Theysaidthatlaughterismuchhealthierthananger.57.TheunderlinedwordferociouslyinParagraph2probablymeans_______.A.mildlyB.fiercelyC.frequentlyD.hardly58.Whichstatementisrightaccordingtothepassage?A.Ifyouwereangryyouwouldgetcancer.B.Onceyouareangryyouwillgetcancer.C.Thoughyouareoftenangryyoucan’tgetcancer.D.Angermaycauseyouacancer.59.Expressingangerferociously_______repressingitaccordingtosomescientists.A.isjustthesameasB.ismoreharmfulthanC.isnobetterthanD.ismuchbetterthan60.Accordingtotheauthoryou’dbetter_______.A.neverbeangryB.coolitdownbeforeyouexpressyourangerC.laughwhenyougetangryD.admityouarewrongwhenyouareangry61.Themainpurposeofthetextisto_______.A.describepeople’sbehavioratanger.B.presentdoctors’differentattitudestowardsanger.C.stresstheharmofanger.D.instructpeoplehowtodealwithanger.

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

Bambooflooring竹地板isagrowingtrendinhomeflooringandisalsoagreatimprovementtotraditionalhardwoodfloors.Itisthemostenvironmentallyfriendlykindofnaturalflooringthatyoucanselectforyourhome.Itisalsoarenewable可再生的resourceisstrongerthansteelanddoesnotsufferfromproblemsasaresultoftemperaturechanges.Bambooisoneofthefastestgrowingplantsonearthandonlytakesfiveyearstogrowtoadultform.Bambooisharvestedeveryfiveyearsandstartstore-growimmediatelyafterbeingharvested.Forthisreasonbambooisakindofgrassnotatree.Bambooishollow空心的butveryhardandcanstandupto50000poundsofpressurepersquareinch.Bambooflooringhasbecomeverypopularwithitsrichandbeautifulgoldenearthcolors.Butitisimportanttoshoparoundforagood-qualitybambooflooringproductthatcontainsnoformaldehydes甲醛whichissaidtobethebestkindofbambooflooring.Manybrandsusecheaperbamboothatmaycontainformaldehydesandthiscancauseindoorairpollutionproblemsascertainchemicalmaterialsinthebambooslowlyreleasetheirpollutantsintotheair.Sowhyshouldweturntobambootosavetheenviroment?Infactbamboocannotsavetheenvironmentdirectlybutitisanexcellentreplacementproductformuchofthehardwoodspeciesoftreesthatarebeingharvestedinrainforests.Onceharvestedifthesehardwoodtreesdogrowbackitcantakeupto200years!Rainforestsarethelungsofourplanetandtheymakeasignificantcontributiontoglobaloxygenproduction.Byselectingbamooflooringyoucanreducethedemandforhardwoodmaterialsandhelpsavetheenvironmentforfuturegenerations.Ofcourseeveryonewantstobuygood-qualitybambooflooring.Thebrands品牌fromourshopareveryhighinqualityandhavereceivedalotofpublicpraise.67.Bambooisakindofgrassbecause_______.A.itgrowsquicklyB.itisn’tashighasatreeC.itdoesn’tgrowinforestsD.itishollow68.Whatkindofbambooflooringisbest?A.Thestrongestkind.B.Themostexpensivekind.C.Thekindthathasabeautifulcolor.D.Thekindthatcontainsnoformaldehydes.69.Howcanbamboomakeacontributiontotheenvironment?A.Itcandirectlyimprovetheenvironment.B.Itdoesnotreleaseformalddehydesatall.C.Itcanreplacehardwoodtreeproducts.D.Itcanproducealotofoxygen.70.Theauthorwrotethispassageinorderto_______.A.explaintheimportanceofbambooflooringB.tellushisorherownbambooflooringbrandsaregoodC.tellpeopletocaremoreabouttheenvironmentD.discussthehistoryofhardwoodflooring

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.