一个由相同的小正方体摆成的几何体，从正面和左面看到的形状都是，从上面看到的形状是．摆这个几何体用了　 　个小正方体．

在一幅比例尺是1400000的地图上量得甲乙两地的距离是15厘米．甲乙两地的实际距离是千米．

根据线段图编一个数学问题并用方程解答．

用简便方法计算． 1+++ 2++ 3﹣﹣ 4+++ 5+﹣ 6+﹣+

春节小刚给弟弟买了一个如图所示的电动小汽车里面主要的部件是电动机．电动机的工作原理是该电动机的电压由4节干电池提供通过的额定电流为1A电动机线圈电阻为0.5Ω则小汽车正常工作2分钟消耗的电能为J输出的机械能是J．

有一种新的取暖方式﹣电热膜供暖它以纯电阻为发热体用R表示每个房间的电热膜各有一个温控器用S表示控制达到了分户控制和节能的目的以两个房间为例在图中完成电路连接．

2分阅读小题根据汉语提示完成句子;每空一词. 请帮我开一下电脑好吗?我要发一封邮件. Wouldyoupleasethecomputer?Ineedtosendanemail.

下列关于细胞分化衰老凋亡癌变在分子层面的解释正确的是

把圆柱的侧面展开可以得到一个等腰梯形．．

用小正方体搭建一个几何体从上面看到的图形是从左面看到的图形是搭建这个几何体最少要个小正方体最多要小正方体．

某二倍体植物的体细胞内的同一条染色体上有M基因和R基因它们编码各自蛋白质的前3个氨基酸的DNA序列如图起始密码子均为AUG．下列叙述正确的是

10分读下面有关一个学生的问题的文章在每个题目下做简短的笔记 DearMr.Hunt MyproblemisthatIcan'tgetonwithmyfamily.Relationsbetweenmyparentshavebecomedifficult.TheyfightalotandIreallydon'tlikeit.It'stheonlycommunicationtheyhave.IdontknowifIshouldsayanythingtothemaboutthis.Whentheyargueit'slikeabigblackcloudhangingoverourhome.Alsomyelderbrotherisnotverynicetome.HealwaysrefusestoletmewatchmyfavoriteTVshow.Insteadhewatcheswhateverhewantsuntillateatnight.Idon'tthinkthisisfairAthomeIalwaysfeellonelyandnervous.Isthatnormal?WhatcanIdo? SadandThirteen DearSadandThirteen It'snoteasybeingyourageandit'snorthesefeelings.Whydon'tyoutalkaboutthesefeelingswithyourfamily?Ifyourparentsarehavingproblemsyoushouldoffertohelp.Maybeyoucoulddomorejobsaroundthehousesothattheyhavemoretimeforpropercommunication.Secondlywhydon'tyousitdownandcommunicatewithyourbrother?Youshouldexplainthatyoudon'tmindhimwatchingTVallthetime.HoweverheshouldletyouwatchyourfavoriteshowIhopethingswillbebetterforyousoon. Mr.Hunt 1①Thewriter'smainproblem: ②Thewriter'sproblemabouthis/herparents: 2①Thewriter'sproblemabouthis/herbrother: ②Thewriter'sproblemabouthimself/herself: 3TheadvicethatMr.Huntgivesabouthis/herproblemwithhis/herbrother: 4PleasefindthesentenceinthepassagethathasthesamemeaningasHedoesn'talwaysallowmetowatchtheTVprogramIlikebest.请在本文中找与划线句子意思相同的句子 5Thelanguagegoals语言目标ofthispassage:

呼吸作用过程中线粒体内膜上的质子泵能将NADH即[H]分解产生的H+转运到膜间隙使膜间隙中H+浓度增加大部分H+通过结构①回流至线粒体基质同时驱动ATP的合成主要过程如图所示．下列有关叙述不正确的是

25分Onceuponatimesometinyfrogsheldacompetition.Thefirsttoreachthetopofaveryhightowerwouldbethewinner. Abigcrowdgatheredaroundthetowertoseetheraceandcheerthemon. Theracebegan.Nooneinthecrowdreallybelievedthatanyofthetinyfrogswouldreachthetopoftower.Theywillnevergettothetop!Theywillneversucceed!someonesaid. Onebyonethetinyfrogsbegantocollapse退下. ThecrowdkeptshoutingItistoodifficult!Nofrogwillmakeit! Moretinyfrogsgottiredandgaveupbutonecontinuedclimbinghigherandhigher.Thisonewouldn'tgiveup. Intheendhewastheonlyoneleft﹣theonlyonetogettothetop.Theotherfrogsnaturallywantedtoknow:Howdidthefrogmakeit Onefrogsteppedforwardtoaskthewinner.Itturnedoutthatthewinnerwasdeaf. Hehadwonbecausehewasabletokeephisownmind.Hewasabletokeeptrying.Hecouldn'thearcriticism;neithercouldhehearpraise. Welearnalessonfromthisstory:don'tletothers'praiseorcriticismtoholdyoubackonyourwaytosucceed. [写作内容] 1以约30个词概括寓言故事的大意. 2然后以120个词就如何对待别人的批评和表扬这个主题发表你的看法并包括如下要点: 1叙述这个寓言给你的启示以及你对他人的批评和表扬的态度; 2以事例说明他人的批评或表扬给你的感受和对你的影响; 3谈谈中学生应该如何对待老师的批评和表扬. [写作要求] 可以使用自己或他人的故事也可以参照阅读材料的内容但不得直接引用原文中的句子; [评分标准] 概括准确语言规范内容合适篇章连贯.

推拉窗户是旋转现象．判断对错

左起第22个图形是前83个图形中共有个．

一个圆锥的体积是24cm3与它等底等高的圆柱的体积比这个圆锥的体积大cm3．

在学习盐的性质时某组同学将碳酸钠溶液和一瓶标签破损的溶液M如图进行反应有白色沉淀产生过滤后得到澄清滤液．同学们对该实验进行了一系列的研究． 探究一M溶液中的溶质是什么 1【提出猜想】该组同学认为M溶液的溶质有两种可能①是②是CaCl2． 2【设计实验】同学们设计了如下方案并进行实验 探究二过滤后澄清滤液中会有哪些溶质 1【提出猜想】猜想一NaOH和Na2CO3猜想二猜想三NaOH． 2【实验验证】同学们针对猜想一进行了如下实验 他们的实验结论是否正确理由是． 3【继续探究】设计实验方案确定滤液中溶质的组成．

艾滋病是由人类免疫缺陷病毒HIV侵入T细胞引起的疾病死亡率极高．下列关于艾滋病的分析错误的是

两个正方体摆成一排从正面和上面看到的都是长方形．．判断对错

1分Iwillhaveameetingthisafternoon.Please唤醒meupat2:00pm.

20分为了让学生吃到更加营养安全的食品政府出台了陪餐制要求从4月1日起学校领导陪同学生用餐.请你根据以下要点给校报英语专栏写一篇短文谈谈自己的看法. 1学生吃得健康安全; 2及时发现就餐问题; 3食堂提供食品多样; 4父母更加放心. 注意:1词数80词左右;开头已给出不计入总词数; 2可适当增加细节以使行文连贯; 3参考词汇:规定regulationn.;食堂cafeterian.;营养的nutritiousadj. AnewfoodsafetyregulationwasputintouseonApril1toimprovenutritionandfoodsafetyinschools.Itaskstheschoolmanagerstoeatwithstudentsintheircafeterias.﹣﹣﹣﹣ ﹣﹣﹣﹣ ﹣﹣﹣﹣ ﹣﹣﹣﹣

如图所示为小明在科学实践课上制作的折纸青蛙用手按住青蛙的后部此时青蛙相对于桌面静止松手后青蛙就可以向前跳动则下列说法正确的是

下列有关现代生物进化理论的叙述错误的是

8分Aswegrowoldwerealizethatwehavesolittletimetoreadandtherearesomanygreatbooksthatwe'veyettogetaroundto.Yetre﹣readersareeverywherearoundus.Forcertainfansre﹣readingTheLordoftheRingsisaconventionalpracticeannually.OnefriendtoldmethatJaneAusten'sEmmacanstillsurprisehimdespitehishavingreaditover50times. Newsuddenclearunderstandingscanbegainedfromtheprocessofre﹣reading.JournalistRebaccaMeadalong﹣timeEnglishwomaninNewYorkfirstcameacrossGeorgeEliot'sMiddlemarchat17.Sincethenshehasreaditagaineveryfiveyears.Witheachre﹣readingithasopenedupfurther;ineachchapterofherlifeithasresonated引起共鸣differently.Meadevidencedthelargenumberofwaysinwhichreallygoodbooksnotonlystandthetestofrepeatreadsbutalsoofferfreshgiftseachtimewecracktheirspines.Thesekindsofbooksgrowwithus. Scientistshavealsorecognizedthementalhealthbenefitsofre﹣reading.ResearchconductedwithreadersintheUSfoundthatonourfirstreadingweareconcernedwiththewhatandthewhy.Secondtimeroundwe'reabletobetterappreciatetheemotionsthattheplotcontinuestoexpress.AsresearcherCristelRusselloftheAmericanUniversityexplainedreturningtoabookbringsneworrenewedappreciationofboththegreatbookanditsreaders. It'struethatweoftenfindformerselvesonthepagesofoldbooksifwe'refondofmakingnotesonthepages.Thesetextscancarryusbacktoatimeandplaceandremindusofthekindofpersonthatwewerethen.We'rechangednotonlybylivedexperiencebutalsobyreadexperience﹣bythebooksthatwe'vediscoveredsincelastreadingtheoneinourhand. Moresothanthemoviedirectororthemusicianthewritercallsuponourimaginationsusingwordstoleadustopicturethisdeclarationofloveorthatunfaithfulnessinlife.Abookisajointprojectbetweenwritersandreadersandwemustpoursomuchofourselvesintoreadingthatourownlifestorycanbecomeconnectedwiththestoryinthebook. Perhapswhat'sreallystrangeisthatwedon'tre﹣readmoreoften.Afterallwewatchourfavouritefilmsagainandwewouldn'tthinkoflisteningtoanalbumonlyonce.Wetreasuremessyoldpaintingsasobjectsyetofallartformsliteraturealoneisalargelyone﹣timedelight.AbookofcoursetakesupmoretimebutasMeadconfirmstherewardsmakeitadequatelyworthwhile. 1ThetwobooksarementionedinParagraph1mainlyto. A.attracttheattentionofreaders B.introducethetopicofthepassage C.providesomebackgroundinformation D.showthesimilaritybetweenre﹣readers 2TheunderlinedexpressioncracktheirspinesinParagraph2refersto. A.recitethem B.re﹣readthem C.recallthem D.retellthem 3Itcanbelearnedfromthepassagethat. A.readingbenefitspeoplebothmentallyandphysically B.readersmainlyfocusonfeelingsontheirfirstreading C.weknowourselvesbetterthroughre﹣readingexperience D.writersinspirethesameimaginationsasfilmdirectorsdo 4Thepurposeofthepassageisto. A.callondifferentunderstandingsofoldbooks B.focusonthementalhealthbenefitsofreading C.bringawarenesstothesignificanceofre﹣reading D.introducetheeffectivewaysofre﹣readingoldbooks

小红家的新房装修在厕所里安装了带有排风扇的照明灯灯和排风扇都可以单独工作且排风扇有两个档位可以调整排风的强度下列电路符合要求的是

1分根据下列句子的句意汉语提示或英语解释写出空白处所缺单词的正确形式;每空一词. Theworld'slongestcross﹣seabridge﹣theHongKong﹣Zhuhai﹣MacaoBridgeisconsideredasoneoftheseven奇迹ofthemodernworldbysomepeople.

10分第一节语法填空 阅读下面材料并填空有的答案要填入适当的内容有的答案要用括号内单词的正确形式但每个答案不多于3个单词. Oneoftheworld'smostdangeroussportsismountainclimbingandoneofthe1popularplacesforthisistheHimalayas.TheHimalayas2runalongthesouthwesternpartofChina. OfallthemountainsQomolangmarisesthehighestandisthemostfamous.3is8844.43metershighandsoisvery4dangertoclimb.Itisveryhardtotakeinairasyougetnearthetop. ThefirstChineseteam5reachthetopin1960while6firstwomantosucceedwasJunkoTaibeifromJapanin1975. Whydosomanyclimbersrisktheirlives?Oneofthemain7reasonisthatpeoplewanttochallengethemselves8ofdifficultiesThespiritoftheseclimbersshowsusthatweshouldnevergiveup9trytoachieveourdreams.Italsoshowsthathumans10bestrongerthantheforcesofnatureinsomesituations

2分阅读小题根据汉语提示完成句子;每空一词. Readthebookcarefullyandyouwillnotmakemistakes.改为同义句 readthebookcarefullyyouwillnotmakemistakes.

找规律．下列图中有大小不同的平行四边形第1幅图中有1个第2幅图中有3个第3幅图中有5个则第5幅图中有个第n幅图中有个．

0既不是正数也不是负数．．判断对错

1分InSouth﹣EastAsiamanyfarmerscannotaffordfarmequipmentsuchastractorssomostoftheworkisdonewithhumanlabor. A.clumsy B.compulsory  C.concrete D.conventional

如图是abc三种物质的溶解度曲线下列分析不正确的是

风车转动是平移现象．判断对错

8分Thehousewasquietat5amandTim'smotherwasasleep.Onlythesoundofthebigfreezerbrokethequiet.He'ddreamtofthecavelastnight.Thepurring轻微颤动声ofthefreezerhadbeenthesea.Timpulledonasweaterandputsomeapplesintohisschoolbag.Itwastooearlyforbreakfast.He'deatafterhe'dbeenthroughthecavesittingontherocksandstaringatthesea.Hewishedhehadaproperpack.Hisschoolbagwouldhavetodo.WhatelseSandwiches﹣buthismothermightwakeupifhestartedpullingoutbreadforsandwichesshe'dwanttoknowwhyhehadtoleavesoearly.Hesettledforsomebiscuitsandleftanotestucktothetable:GonetoMichael's.BacktonightTim.Theskywashighandsoftandlightoutsidethoughthesunstillwasn'tup.Eventhehighwayupthehillwasquietashemadehiswaydownthestreet.Thewindfromtheseawasfreshandsweet.Thesandhillsstillbreathedheatfromyesterday'ssunthoughthetopofthesandwascool.Herandowntothebeachimpatientlybuttherewasnoonejustdrysanddancingintheearlywindandseabirdsmarchingupanddownwatchingthewaves.Thelightchangedsuddenly.Thefirstraysofsunlightstretchedacrossthesea.Thesunwaspushingitswayovertheedgeoftheworld.OverthefirstrocksalongtothepointTimglancedback.Thebeachwasstillempty.Thesunsailedhigherinthesky.Hecouldseethecavenowevendarkerinthemorninglight.Thesandturnedsilverthendarkgoldasthewaterflowedawayfromit.Hehadtoforcehimselftogocloser.WhywasitsomuchmoremysteriousnowButitwouldbesillytogobacknowaftersomuchtrouble.Heneedn'tgoinalltheway1WhatdidTimdoatthebeginningofthestoryA.Heputasweaterinhisschoolbag.B.Hehadbreakfastathome.C.Heleftanoteonthefreezer.D.Heleftthehousequietly.2WhatmadeitpossibleforTimtoseetheentrytothecaveA.Theheightofthefirstrocks.B.Thechangeinthepositionofthesun.C.Theupsanddownsofthewaves.D.Thevaststretchofthesunlitbeach.3WhichofthefollowingstatementsisTRUEaccordingtothestoryA.Timwastheonlypersononthebeach.B.SeabirdsflewawaywhenTimarrived.C.Thesealookedlikeapieceofgold.D.TheskygotdarkasTimreachedthecave.4InthestoryTim'smoodchangedfrom.A.lonelinesstocrazinessB.anxiousnesstoexcitementC.eagernesstonervousnessD.helplessnesstohappiness

20分YoumayhaveheardofOsceolaMcCartyan88﹣year﹣oldwomaninMississippiwhohadworkedforover75yearsasa1woman. Onedayaftersheretiredshewenttothebankanddiscoveredthathersmallmonthly2hadgrowntoover＄150000.Thentoeveryone'ssurprisesheturnedaroundand3almostallofthemoneytotheUniversityofSouthernMississippiUSMfora4fundforstudentswithfinancialneeds.Immediatelyshemadenational5. WhatyouhavenotheardishowOsceola'sgifthad6mylife.Iam19yearsoldandthefirst7ofanOsceolaMcCartyScholarship. Iwasa8studentandIwasdeterminedtogotoUSM.ButI9beingqualifiedforaregularscholarshipbyonepointontheentranceexamsandascholarshipwasthe10wayIcouldattend. OneSundayIcameacrossthestoryinthepaperaboutOsceolaMcCartyandhergenerous11.ThenextdayIwenttothefinancialaidofficeandtheytoldmetherewasstillnomoney12formebutifanythingcameupthey'dcall. AfewdayslaterIwasgoingoutwithmymother13thephonerang.IwastoldIhadbeenchosentobegiventhefirstOsceolaMcCartyScholarship.Iwas14! McCartyworkedhardherwholelifewashingclothesbyhand.Nowthatsheis15shesitsmostofthedayandreadstheBiblethatiswhensheisnotgettingrewards.EverytimeIgotovisithershehasanew16.She'sevengonetotheWhiteHouse.Sheissohappyandproud.WehavetriedtotalkherintogettingaVCR录像机soshecantapetheprogramsandsee17onTV﹣shejustsmiles. McCartygavememuchmorethanascholarship.Shetaughtmeaboutthegiftof18.NowIknowtherearegoodpeopleintheworldwhodogoodthings.Sheworkedhardandhelpedothersandinturnshehasinspiredmeto19whenIcansomeday.So20Iplantoaddtoherscholarshipfund. 1A.café B.buffet C.laboratory D.laundry 2A.expenses B.profits C.savings D.wages 3A.returned B.donated C.delivered D.removed 4A.welfare B.project C.scholarship D.research 5A.headlines B.customs C.sympathies D.doubts 6A.affected B.formed C.disturbed D.ruined 7A.designer B.receiver C.contributor D.reporter 8A.considerate B.dedicated C.casual D.sensitive 9A.advocated B.regretted C.missed D.avoided 10A.normal B.wrong C.legal D.only 11A.gift B.idea C.decision D.plan 12A.left B.raised C.available D.enough 13A.since B.before C.though D.when 14A.shocked B.excited C.puzzled D.encouraged 15A.retired B.dismissed C.promoted D.transferred 16A.job B.hobby C.life D.award 17A.everybody B.everything C.herself D.us 18A.giving B.understanding C.receiving D.loving 19A.giveup B.giveback C.giveoff D.givein 20A.suddenly B.originally C.gradually D.eventually

8分Conventionalwisdomisamajorbarriertoinnovation创新thatthreatensthesurvivalofcompanieseverywhere.It'sbasedontheassumptionthatoldideaswillalwaysworksotheyshouldn'tbechallenged.Whilethismaybeavalidassumptioninsituationsthatdon'tchangeit'sunlikelytoholdtrueinachangingsituation.Intoday'srapidchangingglobalenvironmentoldmethodsoftendon'tworkandstubbornlyusingthemcanleadtomajorproblems. Mostpeopleseemtoagreewithconventionalwisdombecauseitgivesoneafalsesenseofsecurity.Ifeveryoneelsebelievesitthenitmustbetree.Individualswhouseconventionalwisdomarecertainthattheyarerightandbeingfightisgood.Theywanttocontinueusingoldideasratherthantakeriskswithchangesthatmightnotwork.In1977KenOlsenco﹣founderandCEOofDigitalEquipmentCorporationDECstatedThereisnoreasonforanyindividualtohaveacomputerinhishome.DespitebeingadominantleaderinthecomputerindustryDECnolongerexists. Peopleseemtoforgetthatsinceinnovationisachangetherecanbenoinnovationwithoutchange.Unfortunatelyconventionalwisdompreventsleadersfollowersandcompaniesfromchangingandthereforeinnovating.Ifcompaniesdon'tinnovatebuttheircompetitorsdothefutureislikelytobeproblematic.Breakingfromconventionalwisdomhasledtomanyofthemostinnovativecompaniesandproductsinhistoryacrossmanyindustriessoithasapowerfuleffectonbusinesssuccess. TedTurnerfounderofCNNknewlittleifanythingaboutthenewsbusinessbutheknewitwasinconvenienttowatchnewsonlyatthedinnerhouraswascommonbeforeCNN.Turner'ssolutionwastocreateacable有线的channeldevotedtonews24hoursaday.Thenewsestablishmentreflectedconventionalwisdomatthetimeandpredictedhisideawouldfailbecausenoonewantedtowatchthenewsallday.Howeveritdoesn'ttakearocketscientisttounderstandthatviewersdon'thavetowatchthenewsalldayfortheCNNtowork.Viewersjusthavetowatchwhentheywanttogetinformation.DuetoconventionalthinkingthecriticsfailedtorecognizetheopportunitythatwascleartoTed.Theyassumedthatonlywhatwasfamiliartothemcouldworkinthefuture. Conventionalwisdompreventscreativityflexibilityandrisk﹣takingsounconventionalleadersenthusiasticallybreakfromit.Tosurviveboomandmaintaincompetitiveadvantagecompaniesmustbeflexiblewhenreactingtochange. 1DEChasdisappearedprobablybecause. A.theCEOstucktotheconventionalideas B.theconsumersdidn'tlikeitsproducts C.theleaderslackedthesenseofsecurity D.theemployeestookmanyriskswithchanges 2ThefoundingofCNNisusedasanexampletoprove. A.missingopportunitiescouldleadtofailure B.watchingnewsatthedinnerhourisconvenient C.changingcouldcontributetobusinesssuccess D.conventionalwisdominfluencesbusinesssuccess 3Whatdoestheunderlinedpartprobablymean. A.RocketscientistscanensuretheCNNworksproperly. B.It'seasytoknowpeopleneedn'twatchthenewsallthetime. C.It'snecessarytounderstandwhenpeoplewatchthenews. D.Mostoftheviewersdon'tliketowatchthenewsatwork. 4Thepassageismainlywrittentotellusthat. A.oldmethodsarechangingwithtime B.opportunitiesleadtobusinesssuccess C.successfulcompaniesneedwiseleaders D.conventionalwisdomlimitsinnovation

北京到武汉飞机票917元乘飞机大约元．

下列实验操作中正确的是

铬Cr及其化合物如三氧化二铬Cr2O3铬酸钠Na2CrO4重铬酸钠Na2Cr2O7等是工业中有重要作用的物质．有如下反应 ①Cr2O3+3Ca2Cr+3CaO ②2Cr2O3+3O2+8NaOH4Na2CrO4+4H2O ③2Na2CrO4+H2SO4═Na2Cr2O7+X+H2O 回答下列问题 1反应③中X的化学式为．在上述反应中属于置换反应的是反应后铬元素化合价升高的是． 2Ca﹣CaCrO4电池是战术导弹的常用电源．向Na2CrO4溶液中加入CaCl2溶液可得CaCrO4沉淀反应的化学方程式是．

糖糖买了8本绘本数学付100元找回m元．每本绘本数学的价格是元．

2.5分如图是某同学探究燃烧条件的改装装置往烧杯中加入下列哪种物质能引起白磷燃烧的是

2.5分有XYZ三种金属X在常温下就能与氧气反应YZ在常温下几乎不与氧气反应如果把Y和Z分别放入硝酸银溶液中过一会儿在Z表面有银析出而Y没有变化．根据以上实验事实推断XYZ三种金属的活动性由强到弱的顺序正确的是

一种商品随季节出售如果按现价降低10%每件仍可盈利200元如果按现价降低20%则每件亏损220元．这种商品每件的进价是多少元

一件商品现价30元比原价降低了10元降低了%．

保温杯的价格是100元打八折销售买两个这样的保温杯比原来便宜元．

1分﹣﹣﹣WhatshouldIdodoctor? ﹣﹣﹣healthyyoushouldtakemoreexercise. A.Keep B.Keeping C.Tokeep

8分IwasverydisappointednottobeabletogotothejazzconcertlastFriday.TheadvertisementinthepapersaidthatyoucouldbuyticketsatthetheatreboxinRichlandHillsanydaybetween10:00and4:00.SinceIworkfrom9:00to5:30theonlytimeIcouldgotothetheatrewasduringmy45﹣minutelunchbreak. UnfortunatelythetheatreisontheothersideofthetownandthebusservicebetweenmyofficeandRichlandHillsisnotverygood.Butifyouareluckyyoucanmaketheroundtripin45minutes.LastMonday.Istoodatthebusstopfor15minuteswaitingforthebusBythetimeIsawonecomearoundthecornertherewasnotenoughtimelefttomakethetrip. SoIgaveupandwentbacktotheoffice.ThesamethinghappenedonTuesdayandagainnextday.OnThursdaymyluckchanged.Igotonabusrightawayandarrivedatthetheatreinexactly20minutes.WhenIgottherehoweverIfoundalonglineofpeopleattheboxofficeIheardonemansayhehadbeenwaitinginlineforoveranhour.RealizingIwouldnothaveenoughtimetowaitinline.Icaughtthenextbusandheadedbackacrossthetown. ByFridayIrealizedmyonlyhopewastomakethetripbytaxiitwasexpensivebutIfeltitwouldbeworthittoheartheconcert.Thetripbytaxionlytook10minutesbutfeltlikeanhourtome.WhenIgottothetheatreIwasrelievedtoseethatnobodywaswaitinginline.ThereasonhoweverIquicklydiscoveredwasthattheyhadalreadysoldallthetickets. 1ThemanlearnedthattherewouldbeaconcertlastFriday. A.fromthenewspaper B.fromhisfriends C.fromoneofhiswork﹣mates D.overtheradio 2Hetriedtogotothetheatreeverydaybutmanagedtogetthereonly. A.once B.threetimes C.twice D.fourtimes 3Onedaythemantooktogettothetheatrebybus. A.forty﹣fiveminutes B.fifteenminutes C.overanhour D.justtwentyminutes 4Theunderlinedwordrelievedmaybestbereplacedby. A.surprised B.puzzled C.pleased D.sorry

如图所示练功房一侧的墙壁是用平面镜MN装饰的若光源A发出一束光经过平面镜反射后正好射到房顶的B点请画出这束光线的光路图．

教室门的打开和关上门的运动是既平移又旋转．判断对错

1分Whatdoyouthinkaboutthatnewlibrarian Sheisofagoodclerkforsheevendoesn'tknowhowtoclassifythebooks. A.somebody B.nothing C.something D.nobody

把一个圆柱体的木块截成两个圆柱体这两个圆柱体木块的表面积的和比原来圆柱体的表面积增加了一个底面积．判断对错

观察身边的物理下列估测最不符合实际的是

计算下面各题能简算的要简算． 1 2 398+99×98

1分Ihaven't收到来信fromSallybefore.

25分假定你校正在开展根除陋习创建文明校园活动.请你以此为主题用英语写一篇发言稿向全校学生倡议: 1.根除:乱扔垃圾浪费食物吸烟2.提倡:讲礼貌互助 Dearfriends Asisknowntoallourschoolhaslaunchedacampaignagainstbadhabitsinordertobuildacivilizedcampus. That'sall.Thankyou.

一个钝角三角形的其中一个锐角是40°另一个锐角一定小于

拧瓶盖属于平移现象．判断对错

10分当前许多学生在课外沉溺于智能手机smartphones.针对这一现象学校将组织开展一次拒绝手机__健康学习生活的演讲活动.请你根据下面的提示用英语写一篇演讲稿. 要求:1.字迹工整书写规范包含全部要点适当发挥; 2.文中不得出现真实的学校班级名称; 3.80词左右开头和结尾已给出不计入总词数; 4.请将书面表达内容写在答题卡上相应的位置. 参考词汇:eyesight视力disadvantage不利条件keepawayfrom远离 takeanactivepartin积极参加 Girlsandboys WiththedevelopoftheInternetmanystudentshavesmartphones. __________ That'sallThankyou!

1分﹣﹣﹣You'dbettertakeanumbrella.Theweatherreportsaysitintheafternoon. ﹣﹣﹣Thankyou.Iwillputoneinmybag. A.willrain B.rains C.israining

求下面图形的周长．

1分﹣﹣﹣WhereisMonica?Ican'tfindheranywhere. ﹣﹣﹣Shebeinthelibrary.Shelovesreadingbookswhensheisfree. A.must B.need C.can't

小天鹅洗衣机开展促销活动现在A商场按满100元减30元的方式销售在B商场按折上折就是先打九折在此基础上再打八折．如果同样一台洗衣机在AB两个商场的标价都是1680元．在哪个商场买更省钱AB两商场相差多少钱

10分Myteachersaidtoastudent:Givemeyourphone. Wealllookedinsurprise.KyleastudentwhoIneversawtextinclassgavetheteacherhisphone. WhentheteacherlefttwostudentswhoIoftensawtextinclassstartedboastingabouthowtheysenttextmessagesandnevergotcaught. Kyleyoustupid!IputmyphoneundermydesksoitlookslikeI'mlookingatmytextbooksoneofthemsaid. Isn'titfunnythatwealwaystextandnevergetcaught?theotheronelaughed. TheymusthavethoughttheyweresmartbecausetheynevergotcaughtandKyledid.Butwhichsituationisworse:gettingcaughtorgettingawaywithit?Rulesarethereforareason. Thesetwostudentsmightnotgetcaughtbutneitherofthemhadgoodgrades.Theydidn'tpayanyattentiontotheclassandIthinktheywillkeepdoingthis. Peopledon'tjustbreakbigrulesandgetthrownintojail监狱overnight.Theytakeitonestepatatime.Kylemighthavegottencaughtbutatleasthelearnedagoodlesson.Hewillnotbreaktherulesinthefuturesohewilllearnmoreinclassandstayoutoftrouble.It'ssmarternottobreaksmallrules. 1WhydidtheteacheraskKyletogiveuphisphone? A.BecauseshewantedtofindoutwhatKylejusttexted. B.BecauseKylewasplayingwithhisphoneinclass. C.BecausethestudentswantedtoseeKyle'snewphone. 2WhatdoestheunderlinedwordboastinginParagraph3probablymean? A.吹嘘 B.讨论 C.报告 3Thetwostudentsinthewriter'sclassfeltquitebecausetheywerenevercaughtbytheteacher. A.surprised B.calm C.proud 4Inthefuturethetwostudentsmight. A.paymoreattentioninclass B.keeptextingduringclass C.notbreakanyrulesagain 5Fromthestoryweknowthatthewriter. A.doesn'tthinkKyleisagoodstudent B.thinksgettingcaughtinclassisworse C.thinksthetwostudentsmightbreakbiggerrules

一个三角形经过它的一个顶点画一条线段把它分成两个三角形其中一个三角形的内角和是

一个等腰三角形顶角的度数是底角的2倍底角是

一种童装原价每套120元现价为96元打了

用盐矿提取得到的粗盐样品中常含有杂质氯化镁氯化钙．小林设计了以下提纯方案 若方案中先除去的是氯化镁接着除去氯化钙请回答 1试剂b的化学式是． 2操作过程中加适量稀盐酸时发生的属于中和反应的化学方程式． 3实验中操作c的名称是若所取粗盐样品中含氯化钠的质量为mg经过操作c后得到精盐的质量为ng试分析n＞m的原因是．

已知a比b多25%那么ab的最简比是．

圆柱的底面直径可以和高相等．判断对错

在学校组织的爱阅读活动中小明看一本书看了a天平均每天看20页还剩5页没看这本书的总页数用含字母的式子表示是页．如图当a＝13时小明看的这本书是．

一种常见的电动自行车使用前要先对车上的蓄电池充电．骑行时蓄电池对车上的电动机供电电动机为车提供动力．如表是这种品牌电动自行车的一些主要技术参数．请回答 1若质量是60kg的人骑电动自行车在水平路面上以6m/s的速度匀速行驶时受到的阻力是人与车总重的0.02倍．求行驶10min电动机对自行车做的功． 2若摩托车每行驶10km耗油0.5L油价约6元/升照明用电的电费约0.6元/千瓦时请通过计算说明使用电动自行车与摩托车哪种更经济． 3该电动自行车的一个轮胎与地面的接触面积为0.005m2则一个60kg的人骑该电动自行车在公路上行驶时对路面的压强是多少

油菜花是两性花其雄性不育性状不能产生可育的花粉受两对独立遗传的等位基因控制其中m基因控制雄性不育性状r基因会抑制m基因的表达．下列叙述正确的是

1分Thefirstthingyoumustrememberisthatinordertosucceeditisalmostcompulsorythatyouoptimistic. A.be B.are C.mustbe D.havebeen

2.5分下列物质属于纯净物的是

8分Sleepdeprivation缺失isanimportanthiddenfactorinloweringtheachievementofschoolpupilsaccordingtoresearcherscarryingoutinternationaleducationtests. Itisaparticularprobleminrichercountrieswithsleepexpertslinkingittotheuseofmobilephonesandcomputersinbedroomlateatnight.Sleepdeprivationissuchaseriousproblemthatlessonshavetobedraggeddowntoalowerleveltosuitsleep﹣deprivedlearnersthestudyfound.TheinternationalcomparisoncarriedoutbyBostonCollegefoundtheUnitedStatestohavethehighestnumberofsleep﹣deprivedstudentswith73%of9﹣and10﹣year﹣oldsand80%of13﹣and14﹣year﹣oldsidentifiedbytheirteachersasbeingnegativelyaffected. Inliteracy读写能力teststherewere76%of9﹣and10﹣year﹣oldslackingsleep.Thiswasmuchhigherthantheinternationalaverageof47%ofprimarypupilsneedingmoresleepand57%amongthesecondaryagegroup. Othercountrieswiththemostsleep﹣deprivedyoungsterswereNewZealandSaudiArabiaAustraliaEnglandIrelandandFrance.High﹣performingFinlandisalsoamongthemostlackinginsleep.CountrieswiththebestrecordsforgettingenoughsleepincludeAzerbaijanKazakhstanPortugaltheCzechRepublicJapanandMalta. Theanalysiswaspartofthehugedate﹣gatheringprocessforglobaleducationrankingstheTrendsinInternationalMathematicsandScienceStudyTIMSSandProgressinInternationalReadingLiteracyStudyPIRLS Ithinkweunderestimatetheimpactofsleep.Ourdatashowthatacrosscountriesinternationallyonaveragechildrenwhohavemoresleepachievehigherinmathsscienceandreading.ThatisexactlywhatourdatashowsaysChadMinnichoftheTIMSSandPIRLSInternationalStudyCenter. It'sthesamelinkforchildrenwhoarelackingbasicnutritionsaysMrMinnichbasedattheLynchSchoolofEducationBostonCollege.Ifyouareunabletoconcentratetoattendmentallyyouareunabletoachieveatyourbestlevelbecauseyourmindandbodyareinneedofsomethingmorebasic.Sleepisafundamentalneedforallchildren.Ifteachersreportsuchlargeproportionsofchildrensufferingfromlackofsleepit'shavingasignificantimpact.Butworsethanthatteachersarehavingtoadjusttheirinstructionbasedonthosechildrenwhoaresufferingfromalackofsleep.Thechildrenwhoaresufferingfromalackofsleeparedrivingdowninstruction. Thatmeansthateventhechildrenwhoaregettingenoughsleeparestillsufferingfromthissleep﹣relatedlowering. 1WhatdidtheresearchersofBostonCollegetrytofind A.Whychildrendon'tgetenoughsleep B.Howmanyhourschildrensleepeverynight C.Therelationshipbetweensleepandtestresults D.Therelationshipbetweensleepandhealth 2Manychildrensufferfromsleepdeprivationbecause. A.theysitinfrontoftheTVfortoolong B.theycanhardlysleepsoundlyanddeeply C.theirhomeworkoccupiestoomuchoftheirtime D.moderntechnologicaldevicesconsumealotoftheirtime 3Whichofthefollowingcountrieshasthemostsleep﹣deprivedstudents A.Japan B.Malta C.Finland D.Portugal 4Whyarechildrenwhogetenoughsleepalsovictims A.Becausetheyaredisturbedbysleep﹣deprivedstudents B.Becauseteachingisdrivendownbysleep﹣deprivedstudents C.Becausetheyhavetospendtimehelpingsleep﹣deprivedstudents D.Becausetheteacherswastetimediscipliningsleep﹣deprivedstudents

某村今年水稻产量是去年的120%今年比去年增产%．已知增产了84吨这个村去年水稻产量是吨．

1分isquiteeasyforpeopletofindanyplaceintheworldwiththehelpofonlinemaps. A.That B.It C.One

一个等腰三角形底角与顶角度数的比是41则这个三角形的顶角是

当呼吸道黏膜受到机械刺激或化学刺激后产生的兴奋传到延髓的相关中枢进而引起呼吸肌快速收缩或舒张产生咳嗽反射．下列有关该过程的叙述正确的是

怎样算简便就怎样算 +﹣×24 +×24 24×× 36×++

8分TheRoyalMinthaschosenBeatrixPotter'sthievingPeterRabbitasthefirstcharacterfromchildren'sliteratureevertoappearonaUKcoin.PeterpicturedinthebluejacketthatheisforcedtoabandoninthegardenofMrMcGregorwhenheiscaughtstealingvegetablesiscapturedonaspecialcolourededitionofa50pcoinavailablefromnow.TheRoyalMintwhichdescribedPeterasthemostrecognizableofPotter'screationsandoneofthemostcherishedfromchildren'sliteraturewillreleaseuncolouredversionsofthecoininchangelaterthisyear.ThreemoreofPotter'scharacterswillalsobecommittedtocurrencylaterthisyearaspartofcelebrationsmarking150yearssincethechildren'sauthor'sbirth.TheimageshavebeencreatedbycoindesignerEmmaNoblewhosaiditwasamazingtobegiventheopportunitytoworkwithsuchfamousandtreasuredliterarycharacters.Potter'sTheTaleofPeterRabbitfeaturingPeterandhisbetter﹣behavedsiblings兄弟姐妹FlopsyMopsyandCottontailwasthefirstofherstoriestobepublishedreleasedin1902byFrederickWarne&Co.Potterwouldgoontofollowitwithaseriesofmuch﹣lovedstorieswhichremainpopulartodayfromTheTaleofSquirrelNutkintoTheTaleofJemimaPuddle﹣Duck.1Whichcharacterfromchildren'sliteraturecanbefoundontheUKcoinA.JemimaPuddle﹣DuckB.SquirrelNutkinC.FlopsyMopsyandCottontailD.PeterRabbit2AccordingtothepassagethecoinswillbereleasedbytheRoyalMintto.A.celebratethe150thanniversaryofthebirthofBeatrixPotterB.celebratethe150thanniversaryofthebirthofPeterRabbitC.celebratethefirstpublicationofTheTaleofPeterRabbitD.promotethesalesofBeatrixPotter'sworks3WhichofthefollowingstatementistrueA.PeterRabbitisoneofthemostrecognizedliterarycharactersinUK.B.TheTaleofPeterRabbitmainlyfeatureshisbetter﹣behavedsiblings.C.ItwasEmmaNoblewhocreatedPeterRabbitthefamousliterarycharacter.D.UncolouredversionsofthePeterRabbitcoinareavailablenow.4WhereisthispassageprobablytakenfromA.AnautobiographyB.Achildren'sbookC.AtravelguideD.Anewsreport

小红用斜面小车装置来探究力对物体运动的影响她让同一小车从同一斜面的同一高度滑下在表面材料不同的水平面上运动分别停在如图甲所示的不同地方． 1小车从斜面下滑时速度越来越快这是因为小车的重力势能转化为缘故．由实验现象我们可以推断假如表面绝对光滑水平面上运动的物体在水平方向上不受力它将． 2小红又用斜面和铁球研究物体动能的大小与哪些因素有关．小红先让铁球A从斜面上高h的位置由静止释放撞击木块B如图乙所示记录下推动木块运动的距离S． 若要研究动能大小与速度的关系小红接下来的操作要领是选择选填相同的小球或不同的小球让小球从选填同一高度或不同高度滑下． 3在图乙中物体动能的大小是通过来反映的下面的实验中也用到了这种方法的是． A．用吸引大头针的数量来描述磁性强弱 B．用水流对比电流 C．研究压强与压力关系时探究受力面积不变 D．牛顿第一定律的得出

一个长方形的面积是56.7平方厘米已知长是10厘米宽是多少厘米

公路上都有限制汽车速度的标志以减少交通事故这是因为汽车的速度越大能越大大卡车限制的速度相对于小轿车限制的速度要选填大一些小一些或一样大．

1分﹣I'dlikeJohnsontotakethejob. ﹣Heis.Betternotaddtohisworkload. A.outofplace B.outoforder  C.outofshape D.outofquestion

2019年春晚精彩纷呈如图所示是武术少林魂的画面演员甲站在一个由多位演员乙托起的大鼓上下面说法正确的是

10分Whatsubjectdoyouworryaboutthemostatschool?Manystudentsworryaboutmath.Somestudentscan'tsleepwellthedaybeforeamathexam.Othersmayfeelverynervousduringtheexamitself.Buttheremightbeawaytomakethesubjectlessstressful压力大的. Forpeoplewhoareworriedaboutmathposture姿势makesabigdifferenceErikPeperfromSanFranciscoStateUniversitytoldtheDailyMail.That'sright﹣sittingupstraightcanhelpyoudobetteronmathexams. Scientiststested125collegestudents.Theyaskedthemtodoasimplemathexamwhilesittinginaslumped﹣over趴倒的postureorsittingupstraight.Afterthetest56percentofstudentssaidtheexamwaseasiertodoiftheyweresittingupstraight. Slumpingoverisadefensive戒备的posture.Itcanbringaboutbadmemoriesinthebodyandbrain.ThiscanstopyoufromthinkingclearlyPepersaid. Studentswhowerenotnervousabouttakingthemathexamdidnotnecessarilybenefit受益frombetterposture.ButtheydidfindthatdoingmathwhileslumpedoverwasmoredifficultScienceDailyreported. Goodpostureisn'tjusthelpfulfortakingmathexams.Sportspeoplemusiciansandpublicspeakerscanallbenefitfrombetterposture.Whenyoufeelstressedoutyoucanalsotrytositupstraightorstandtall.Itcanhelpyoufeelmorecertainandfocusbetter. 1Whatposturecanmakepeoplefeellessstressedduringmathexams? A.Sittingupstraight. B.Hangingyourhead. C.Lyingonyourback. D.Raisingonehand. 2Whatdidthescientistsaskthecollegestudentstododuringthetest? A.Todosit﹣ups. B.Tocountnumbers. C.Tothinkcarefully. D.Tositindifferentpostures. 3Howmanystudentsinthetestbenefitedfromthebetterposture? A.Allthe125students. B.Lessthanhalfofthem. C.56percentofthem. D.Noneofthestudents. 4Thefourthparagraphiswrittentoexplain. A.whyslumpingovermakesexamshardertodo B.whyslumpingoverisbadforone'shealth C.whysomepeopleslumpoverduringexams D.whypeoplearenervousduringmathexams 5Whichofthefollowingisthebesttitleforthepassage? A.SlumpovertoTakeExams B.SituptoDoMath C.BetterPostureforNervousStudents D.GoodAdviceforBetterExams

怎样简便就怎样算 35×1×3 25×4 1×5.6+ +×27．

所有的质数都是奇数所有的合数都是偶数．判断对错

求未知数x． 2x﹣4.6＝34.6 x＝4 x+x＝

下面分别是树叶的平面图每个小方格表示1平方厘米．先把整格和不满整格的分别涂上不同颜色数一数各有多少个再算出这片树叶的面积大约各是多少平方厘米．不满整格的都按半格计算 整格个不满整格个面积大约平方厘米．

一个长方体一个圆柱体和一个圆锥体的底面积相等体积也相等那么圆锥的高是圆柱的长方体高是圆锥高的．

东北师大附小的长是120米宽是50米．在平面图上用10厘米的线段表示校园的宽该图的比例尺是平面图上的长应画厘米．

下列短语中从物质变化的角度分析属于化学变化的是

5不是正数因为5前面没有+．判断对错

广东省常住人口为一亿零八百四十九万横线上的数写作其中老年人口有9202800人横线上的数读作少年儿童人口有18846700人少年儿童人口大约有万．

小美的奶奶在冬天遇寒会肩痛于是她就购买如图所示的暖宝宝让奶奶贴用暖宝宝主要是由铁粉活性炭蛭石无机盐和水等合成的聚合物撕开明胶层可立即与空气中的氧气作用从而放出热量．所以它的工作原理是将化学能转化成能再通过的方式让肩膀升温

如图甲所示在研究气泡的运动规律的实验中 1在研究气泡运动的快慢时依据的物理原理是需要的测量工具是和． 2实验中小明设计的操作方案是等气泡运动一段路程到达0点后开始计时并在玻璃管上以0点为起点每隔10cm处做一刻度标记用秒表测出气泡从0点运动到每一个刻线标记处所用的时间如图下表为小明同学在实验中测得的数据请你根据他所测得的数据在图乙中画出s﹣t图象． 3数据分析气泡上升一段路程到达0点后运动速度可以看成是选填不变或变化的．大约是m/s． 4实验中使气泡在管内运动得较慢的目的是．

下列关于科学研究方法和相关实验的叙述中不正确的是

在适宜温度和大气CO2浓度条件下测得某森林中林冠层四种主要乔木的幼苗叶片的生理指标见下表．下列分析正确的是 光补偿点光合速率等于呼吸速率时的光强光饱和点达到最大光合速率所需的最小光强