2024年全国成考（专升本）之英语（专升本）考试快速提分卷（附答案）

姓名:_________________编号:_________________地区:_________________省市:_________________ 密封线 姓名:_________________编号:_________________地区:_________________省市:_________________ 密封线 密封线 全国成考（专升本）考试重点试题精编注意事项:1.全卷采用机器阅卷，请考生注意书写规范；考试时间为120分钟。2.在作答前，考生请将自己的学校、姓名、班级、准考证号涂写在试卷和答题卡规定位置。

3.部分必须使用2B铅笔填涂;非选择题部分必须使用黑色签字笔书写，字体工整，笔迹清楚。

4.请按照题号在答题卡上与题目对应的答题区域内规范作答，超出答题区域书写的答案无效:在草稿纸、试卷上答题无效。一、选择题

1、Animalshavedifferentwaysofprotectingthemselvesagainstwintertimeweather.Someanimalsgrowheavycoatsoffurorfeathers,whileothersdigintothegroundtofindawarmwintertimehome.Someanimalsspendthewinterinadeepsleepbecausebygoingtosleeptheyavoidthetimeoftheyearwhenfoodisscarceandthetemperaturesarelow.TheirsleepisknownasThereismuchabouthibernationthatpuzzlesscientists.Forexample,theyarewonderinghowhibernationcameintobeing.Somescientistshaveexploredthepossibilitythatanimalsreleaseachemicalthatstartsthemhibernating.Onethingthatscientistsarecertainaboutisthatanimalshibernateonlywhenitiscold.Hibernationisaseasonalpractice．Someanimalsthatfallintoawintertimesleeparenottruehibernatorsbecausetheyspendonlyapartofthecoldseasonasleep.Bears,forexample,caneasilybeawakenedfromtheirwinternap.Theyarenottruehibernators.Sometimesitisdifficulttodeterminewhetheraparticularanimalisatruehibernator.Forexample,somemicehibernate,butothersdonot.Thesameistrueofbats.Someofthemhibernate.Othersdonot.Thethemeofthepassageisthat____.（）A.manyanimalsdieduringhibernationB.hibernationprotectsanimalsduringthewintertimeC.scientistsfeelpuzzledabouthibernationD.somebatshibernateandothersdonot

2、Whenafire____attheNationalExhibitioninLondon,atleasttenpricelesspaintingswerecompletelydestroyed.（）A.brokeoffB.brokeoutC.brokedownD.brokeup

3、根据以下材料，回答40-43题Tomwasagedfourbuthewastalkinglikeatwo-year-oldbaby.Hewassayingsuchthingsas"kickball"and"wantcar",andusinglotsofone-wordsentences.Heshouldhavebeensayingsomereallylongsentencesandtellingstorieswiththem.Hewasn't.Somethinghadgoneterriblywrong.Quiteafewchildrenhavewhatiscalleda"languagedelay".Forsomereasontheydon'tlearntospeakasquicklyastheyshould.Theirfriendsshootaheadandthey'releftbehind.Asaresult,theygetverylonely.Nobodywantstotalktoyouifyoucan'ttalkback.CananythingbedonetohelpthesechildrenYes.Theycangotoseeaspeechtherapist--apersonwho'sspeciallytrainedtoworkoutwhat'swrongandwhoknowshowtoteachlanguagetochildren.ThisiswhathappenedtoTom.Thespeechtherapistplayedsomegameswithhimandheardhowhetalked.Shemadearecordingofhisspeech,andchattedtohismornanddadabouthisbackground.They'dtakenTomtoseeadoctor,butthedoctorhadn'tfoundanythingwrongwithhim.Heseemedperfectlynormalineveryway--excepthejustwasn'ttalking.AfterTomandhisparentshadgonehome,thetherapistlistenedcarefullytotherecordingshe'dmade.Thenshelookedatachartwhichshowedhowlanguagedevelopedinchildrenagedtwo,three,andfour.ShecouldseeTomwasalongwaybehind.Thenextstep,shedecided,wastoteachTomhowtosaysomenewsentenceslike"kickaredball,"and"theclowniskickingaball."Tomdidn'tgetthenewsentencesrightstraightaway.Butthetherapistwasverypatient,andafterafewmorevisitshestartedtomakesomeprogress.Whatcanbeinferredfromthepassageabout"languagedelay"A.ItcanbepreventedbydoctorsB.ItisseldomfoundamongchildrenC.ItcanbeimprovedwithcertainhelpD.Itmayresultfromhearingproblems

4、Theplanhadbeen__________,whichmadehimveryangry.A.calledoffB.calledupC.calledinD.calledon

5、ResearchershavefoundthatREM(rapideyemovement)sleepisimportanttohumanbeings.Thistypeofsleepgenerallyoccursfourorfivetimesduringonenightofsleeplastingfiveminutestofortyminutesforeachoccurrence.Thedeeperaperson'ssleepbecomes,thelongertheperiodsofrapideyemovement.TherearephysicalchargesinthebodytoshowthatapersonhaschangedfromNREM(non-rapideyemovement)toREMsleep.Breathingbecomesfaster,theheartrateincreases,and,asthenameimplies,theeyesbegintomovequickly.AccompanyingthesephysicalchangesinthebodyisaveryimportantcharacteristicofREMsleep.ItisduringREMsleepthatapersondreams.WhichofthefollowingshowsthatapersonisNOTdreaminginhissleep?（）A.HiseyesbegintomoveB.HisbreathingbecomesfasterC.HisheartrateincreasesD.Hiseyesstopmoving

6、Enoughsleepisimportanttohealth.Theamountofsleep21dependsontheageofthepersonandtheconditionsinwhichsleep22.Theyoungmayneedmoresleepthantheold,but23eighthoursisenoughforthehealthofgrown-ups.Somecandowithlessthanthisamountbut24mayneedmore.Everypersonknowshisownneed.Itisthenamatterofhowto25it.Sleepshouldbealwaysenoughtomakeonerelaxed(松弛)andreadyfor26work.Freshairis27tosoundsleep(酣睡).Itisnot28reasonforsomepeopletoinsistthatitispracticaltosleepintheopenair.29apersoncankeephimselfwarm,outof-doorsleepingprobablygivesthebody30completerelaxtion.Abilitytosleepislargelyahabit.Theconditionsreferredtoonlyleadtosleep.Out-of-door31,agoodhabitofregulardrinkingandtheavoidanceoflateeatingand32areallhelpfultosoundsleep.Suchfactorsarelargelywithinthe33ofanyperson.Abathat34,neitherhotnorcoldbutofbodytemperature,maybehelpfultosleep.Sleepingpillsshouldneverbetakenexceptwhensuggestedby35.A.fallsdownB.breaksoutC.wakesupD.takesplace

7、Thesmallnumberofnewbornbabies,which.hasbeencausedbyhighpriceandthechangingsocialsituationofwomen,isoneofthemostseriousproblemsinAsia.Whenpeopletalkaboutit,youcanhearawordinventedinJapan,"DINKS",whichmeansDoubleIncomeNoKids.InmanymajorAsiancitieslikeSeoul,Singapore,andTokyo,thecostofahouseisextremelyhigh.Ayoungcouplewhowanttobuytheirownhousemayhavetopayabout$300,000(thoughpriceshavefallen).Foraflatwithonebedroom,onedining-room,akitchen,andabathroom,thecouplewillpayabout$900amonth.What'smore,iftheywanttohaveachild,thechild'seducationisveryexpensive.Forexample,mostkindergartenchargesareatleast$5,000ayear.Insuchasituation,it'sdifficulttoaffordchildren.Thenumberofmarriedwomenwhowanttocontinueworkingincreasesrapidlybecausetheyenjoytheirjobs.However,iftheywanttohavechildren,theyimmediatelyhaveseriousproblems.Thoughmostcompaniesallowwomentoleavetheirjobforashorttimetohaveababy,theyexpectwomenwithbabiestogaveuptheirjobs.Inshort,iftheywanttobringupchildrenproperly,bothparentshavetowork,butitishardformotherstowork.Indeed,womenwhowanttocontinueworkinghavetochoosebetweenhavingchildrenorkeepingtheirjobs.Inaword,Asiangovernmentsmusttakestepstoimprovethepresentsituationassoonaspossible.Tobuyaflatandsendachildtokindergarten,howmuchwillacouplepayeachyear?（）A.$5,000B.$5,900C.$10,800D.$15,800

8、Scientistswhostudythebrainhavefoundoutagreatdealabouthowwelearn.Theyhave21thatbabieslearnmuchmorefromthesightsandsoundsaroundthemthanwe22before.Youcanhelpyourbabybytakingadvantageofherhungertolearn.Fromthe23beginning,babiestrytoimitatethe24theyhearusmake.They“read”the25onourfacesandourmovements.Thatis26itissoimportanttotalk,singandsmiletoyourchild.Hearingyoutalkisyourbaby'sfirst27towardbecomingareader,becauseit28hertolovelanguageandtolearnwords.Asyourchildgrowsolder,29talkingwithher.Askheraboutthethingsshedoes.Askherabouttheeventsandpeopleinthestoryyou30together.Letherknowyouarecarefully31whatshesays.Bykeepingherin32andlistening,youare33encouragingyourchildtothinkasshespeaks.34,youareshowingthatyourespectherknowledgeandherabilityto35learning.A.movesB.thingsC.soundsD.music

9、A:Whatdoyouplantodothisweekend?B:_____56_____A:Ihearthere′sgoingtobeabasketballmatchthisSunday.TomandIaregoingtowatchit._____57_____?B:Ofcourse.Basketballismyfavourite.ButIhavenoticketforthematch.Whatapity!A:You′relucky.Ihavesomefreetickets.____58______.B:Great!_____59_____?A:Let′smeetatthebusstopathalfpastfive.B:Ithinktheremustbeabigcrowdofpeoplethere._____60_____?A:OK.Seeyouatfiveo′clock.B:Seeyou.第（58）题选A.WhataboutmakingitalittleearlierB.IhavenoideaC.Let′sgotogetherD.ThankyouallthesameE.DoyoulikebasketballF.WhenandwhereshallwemeetG.WhatareyougoingtodoH.Itdoesn′tmatter

10、Thefamilyistoopoorto____thethreechildren____school.（）A.send,forB.take,toC.send,toD.bring,to

11、HaveyoueverhadtodecidewhethertogoshoppingorstayhomeandwatchTVonaweekend?Nowyou_____21_____dobothatthesametime.Homeshoppingtelevisionnetworks(网络)havebecome?a_____22_____formanypeopletoshopwithout_____23_____havingtoleavetheirhome.Someshoppersare_____24_____ofdepartmentstoresandsupermarkets——fightingthecrowds,waiting?inlonglines,andsometimeshavingslight_____25_____offindinganythingtheywanttobuy.They′d?rathersitquietlyathomeinfrontoftheTVsetandwatchafriendlyannouncerdescribeaproduct_____26_____amodelshowsit.Andtheycanshoparoundtheclock,buyingsomething_____27_____bymakingaphonecall.Departmentstoresandevenmail-ordercompaniesare_____28_____tojoininthesuccessofhome?shopping.Largedepartmentstoresarebusy_____29_____theirownTVchannels(频道)toencourageTVshoppinginthefuture.Customerscanaskquestionsaboutproductsandplace_____30_____,allthroughtheirTVsets.Willshoppingbytelevision_____31_____taketheplaceofshoppinginstores?Someindustrymangersthinkso._____32_____manypeoplefindshoppingatarealstoreagreatenjoyment.Andformanyshoppers,itisstillimportantto_____33_____ortryondressestheywanttobuy.That′s_____34_____specialismsaythatinthefuture,homeshoppingwill_____35_____togetherwithstoreshoppingbutwillneverentirelyreplaceit.

12、ThefirstEuropeanstockexchangewasestablishedinAntwerp,Belgium(比利时),in1531.TherewerenostockexchangesinEnglanduntilthe1700′s.Amanwishingtobuyorsellsharesof?stockhadtofindabroker(agents)totransacthisbusinessforhim.InLondon,heusuallywenttoa?coffeehouse,becausebrokersoftengatheredthere.In1773,thebrokersofLondonformedastock?exchange.InNewYorkCity,brokersmetunderanoldbutton-woodtreeonWallStreet.Theyorganized?theNewYorkStockExchangein17.92.TheAmericanStockExchange,thesecondlargestinthe?UnitedStates,wasformerlycalledtheCurbExchangebecauseofitsoriginonthestreetsofNew?YorkCity.Astockexchangeisamarketplacewherememberbrokersbuyandsellstocksandbonds(债券)ofAmericanandforeignbusinessesonbehalf,ofthepublic.Astockexchangeprovidesamarket?placeforstocksandbondsinthesamewayaboardoftradedoesforcommodities.Thestockbrokers?receiveasmallcommissiononeachtransactiontheymake.Thestockholdermaysellhisstockwhereverhewantstounlessthecorporationhassomespecial?ruletopreventit.Pricesofstockchangeaccordingtogeneralbusinessconditionsandtheearnings?andfutureprospects(前景)ofthecompany~Ifthebusinessisdoingwell,thestockholdermaybe?abletosellhisstockforaprofit.Ifitisnot,hemayhavetotakealoss.Whichofthestatementsistrue?A.ThestockholdercansellhisstocktoanywhereatanytimeB.TherewerenostockexchangeinEnglandinthe1700'sC.ThepriceofstockisnotstableD.Thestockbrokersdothetransactionwithoutchargingforthestockholders

13、ThenorthernpartsoftheUnitedStatesgetverycoldinthewinter.Itsnowsagreatdealandthe?temperatureoftengoes_____21_____zerodegreeinJanuary,_____22_____andMarch.Butthenortheasternand?northcentralregionsof____23______havebeenfinancialandindustrialcenters,andtheyareheavilypolluted.Inrecentyears,peopleintheseregionshavebeguntotakevacations_____24_____thesecoldwinter?months.Theygotosouthernpartsofthecountry____25______itiswarmer.ManygotoFloridawherethe?weatheris_____26_____.OthersgotothesouthwesternstatesofArizona,NewMexicoandTexaswherethey._____27_____drydesertclimates.Ithasbecome_____28_____nowadays.foroldpeopletomovesouthtotheseplaces_____29_____they?retire.Typicallythesepeopleselltheirhousesintheirhomecommunitiesandmovesouthtobegina?newlife_____30_____seniorcitizens.Theirchildrenlikelyhavehomes_____31_____andmanyofthemaremovingsouth_____32_____communities?wheretheywere_____33_____.Thesouthernandsouthwesternpartsofthecountryarenowgrowing_____34_____any?otherpart.Businessandindustry_____35_____manyofficesandfactoriesinthesouth.Californiaisalready?themostpopularstateinthecountry.

14、Youreallyhavetogetveryoldbeforeyourealizeyou'reold.I'minmymiddlefiftiesandIdon'tfeel21yet.However,sometimesIlookbackatmychildhoodand_22thingstothewaylifeisfor23kids,somethingshavecertainlychanged.Oneareaofchangeis24.Somechangeshavebeenimprovements.Somechanges,ontheotherhand,havebeen25.WhenIstartedschool,mostpeopledidn'thaveatelevision;TVwasjustbeginningtoget26.Myfatherdecidedtogoalloutandbuya16-inchblackandwhiteMotorola27.IstillrememberwatchingtheLoneRangersavepeople,fromthe28guysonthatawesomeelectronicmachine.Thatwasexciting!Now,29havelargerpicturesinfullcolor.Thepicturesareclearerandthesoundismuchmore30.Thenewhighdefinitionsetsaremadetorival31screens.Thevarietyandquantityofprogramhas32greatly.Therearehundredsofchannelsandmoreshowsthanonepersoncouldeverwatch.Therearemanyfineentertainmentandeducational33.There'salsoalotofgarbage,stuffthatmost34don'twanttheirkidsexposedto.Overall,wehavemorechoices,andthatisgood.Iwonderwhat35willbelikewhentoday'skidsaremyage．A.loudB.realisticC.clearD.fake

15、Youreallyhavetogetveryoldbeforeyourealizeyou'reold.I'minmymiddlefiftiesandIdon'tfeel21yet.However,sometimesIlookbackatmychildhoodand_22thingstothewaylifeisfor23kids,somethingshavecertainlychanged.Oneareaofchangeis24.Somechangeshavebeenimprovements.Somechanges,ontheotherhand,havebeen25.WhenIstartedschool,mostpeopledidn'thaveatelevision;TVwasjustbeginningtoget26.Myfatherdecidedtogoalloutandbuya16-inchblackandwhiteMotorola27.IstillrememberwatchingtheLoneRangersavepeople,fromthe28guysonthatawesomeelectronicmachine.Thatwasexciting!Now,29havelargerpicturesinfullcolor.Thepicturesareclearerandthesoundismuchmore30.Thenewhighdefinitionsetsaremadetorival31screens.Thevarietyandquantityofprogramhas32greatly.Therearehundredsofchannelsandmoreshowsthanonepersoncouldeverwatch.Therearemanyfineentertainmentandeducational33.There'salsoalotofgarbage,stuffthatmost34don'twanttheirkidsexposedto.Overall,wehavemorechoices,andthatisgood.Iwonderwhat35willbelikewhentoday'skidsaremyage．A.peopleB.writersC.societyD.parents

16、Johnson________hismealwhenhisfriendTimcalledhimtoeatouttogether.A.hadfinishedB.hasfinishedC.finishedD.finishes

17、Scientistswhostudythebrainhavefoundoutagreatdealabouthowwelearn.Theyhave_____21_____thatbabieslearnmuchmorefromthesightsandsoundsaroundthemthanwe_____22_____before.Youcan?helpyourbabybytakingadvantageofherhungertolearn.Fromthe_____23_____beginning,babiestrytoimitatethe____24______theyhearusmake.They""read"the_____25_____onourfacesandourmovements.Thatis_____26_____itissoimportanttotalk,singandsmileto?yourchild.Hearingyoutalkisyourbaby′sfirst_____27_____towardbecomingareader,becauseit_____28_____her?tolovelanguageandtolearnwords.Asyourchildgrowsolder,_____29_____talkingwithher.Askheraboutthethingsshedoes.Askher?abouttheeventsandpeopleinthestoryyou_____30_____together.Letherknowyouarecarefully_____31_____whatshesays.Bykeepingherin_____32_____andlistening,youare_____33_____encouragingyourchildtothinkas?shespeaks._____34_____,youareshowingthatyourespectherknowledgeandherabilityto____35______learning.

18、ThenumberofspeakersofEnglishinShakespeare'stimeisestimatedtohavebeenaboutfivemillion.Todayitisestimatedthatsome260millionpeoplespeakitasa(an)21language,mainlyintheUnitedStates,Canada,GreatBritain,Ireland,SouthAfrica,AustraliaandNewZealand.InadditiontothestandardvarietiesofEnglishfoundintheseareas,22areagreatmanyregionalandsocialvarietiesofthelanguageaswellas23levelsofusagethatareemployedbothinitsspokenandwrittenforms.Infact,itis24toestimatethenumberofpeopleintheworldwhohaveacquiredanadequateworkingknowledgeofEnglishinadditiontotheirownlanguages.The25forEnglishlearningandthesituationsinwhichsuchlearningtakesplacearesovariedthatitis26toexplainandstillmoredifficulttojudge27formsanadequateworkingknowledgeforeachsituation.Themainreasonforthewidespread28forEnglishisitspresentdayimportanceasaworldlanguage.Besides29theindefiniteneedsofitsnativespeakers,Englishisalanguageinwhichsomeofimportantworksinscience,technology,andother30arebeingproduced,andnotalwaysbynativespeakers.Itiswidelyusedfor31purposesasmeteorological(气象的)andairportcommunications,internationalconferences,andthe32ofinformationovertheradioandtelevisionnetworksofmany33.Itisalanguageofwidercommunicationforanumberofdevelopingcountries,speciallyformerBritishcolonies.Manyofthesecountrieshavemulti-lingual34andneedalanguageforinternalcommunicationinsuchmattersasgovernment,commerce,industry,lawand35aswellasforinternationalcommunicationandforentrancetothescientificandtechnologicaldevelopmentsintheWest.A.requireB.requestC.supplyD.demand

19、Woodfurnituredoesnotdepreciateinvalue____.（）A.iftheyarehandleproperlyandprotectedproperlyB.unlesshandlingandprotectingproperlyC.ifproperlyhandledandprotectedD.unlessforallitshandlingandprotection

20、A:Whatdoyouplantodothisweekend?B:_____56_____A:Ihearthere′sgoingtobeabasketballmatchthisSunday.TomandIaregoingtowatchit._____57_____?B:Ofcourse.Basketballismyfavourite.ButIhavenoticketforthematch.Whatapity!A:You′relucky.Ihavesomefreetickets.____58______.B:Great!_____59_____?A:Let′smeetatthebusstopathalfpastfive.B:Ithinktheremustbeabigcrowdofpeoplethere._____60_____?A:OK.Seeyouatfiveo′clock.B:Seeyou.第（57）题选A.WhataboutmakingitalittleearlierB.IhavenoideaC.Let′sgotogetherD.ThankyouallthesameE.DoyoulikebasketballF.WhenandwhereshallwemeetG.WhatareyougoingtodoH.Itdoesn′tmatter

21、HaveyoueverhadtodecidewhethertogoshoppingorstayhomeandwatchTVonaweekend?Nowyou_____21_____dobothatthesametime.Homeshoppingtelevisionnetworks(网络)havebecome?a_____22_____formanypeopletoshopwithout_____23_____havingtoleavetheirhome.Someshoppersare_____24_____ofdepartmentstoresandsupermarkets——fightingthecrowds,waiting?inlonglines,andsometimeshavingslight_____25_____offindinganythingtheywanttobuy.They′d?rathersitquietlyathomeinfrontoftheTVsetandwatchafriendlyannouncerdescribeaproduct_____26_____amodelshowsit.Andtheycanshoparoundtheclock,buyingsomething_____27_____bymakingaphonecall.Departmentstoresandevenmail-ordercompaniesare_____28_____tojoininthesuccessofhome?shopping.Largedepartmentstoresarebusy_____29_____theirownTVchannels(频道)toencourageTVshoppinginthefuture.Customerscanaskquestionsaboutproductsandplace_____30_____,allthroughtheirTVsets.Willshoppingbytelevision_____31_____taketheplaceofshoppinginstores?Someindustrymangersthinkso._____32_____manypeoplefindshoppingatarealstoreagreatenjoyment.Andformanyshoppers,itisstillimportantto_____33_____ortryondressestheywanttobuy.That′s_____34_____specialismsaythatinthefuture,homeshoppingwill_____35_____togetherwithstoreshoppingbutwillneverentirelyreplaceit.

22、ResearchershavefoundthatREM(rapideyemovement)sleepisimportanttohumanbeings.Thistypeofsleepgenerallyoccursfourorfivetimesduringonenightofsleeplastingfiveminutestofortyminutesforeachoccurrence.Thedeeperaperson'ssleepbecomes,thelongertheperiodsofrapideyemovement.TherearephysicalchargesinthebodytoshowthatapersonhaschangedfromNREM(non-rapideyemovement)toREMsleep.Breathingbecomesfaster,theheartrateincreases,and,asthenameimplies,theeyesbegintomovequickly.AccompanyingthesephysicalchangesinthebodyisaveryimportantcharacteristicofREMsleep.ItisduringREMsleepthatapersondreams.Accordingtothepassage,howoftendoesREMsleepoccurinonenight?（）A.OnceB.ThirdC.FourorfivetimesD.Uncountable

23、根据以下材料，回答问题。Inouronlinelife,weneedtousepasswordsfrequently.Weusepasswords21e-mail,gamingsites,socialnetworkingsites,andothershoppingsites.22,thepasswordsmostpeopleusearenotvery23andcaneasilybe"broken"byothers.Infact,themostcommonlyusedpasswordsaresosimplethatitrequiresvery24efforttofigurethemout.Canyouguess25themostcommonlyusedpasswordsareTheyare:Namesofbaseballteams,birthdatesofafamily26,theyearofaspecialsportsevent,therandomnumberslike156468,27thenameofafriend,pet,favoriteTVstar,orband.Thereareprograms28tobreakintopeople'sonlineaccounts.Theseprogramsare29oftryingeverywordintheEnglishdictionaryandthedictionaries30manyforeignlanguages,intheirefforttobreakintoanaccount.31canevensearchwordsbackward.Somewilltry32wordsorwordsthatarefollowedbynumbers,33school222.Theseprogramscantestmillionsofpasswordsinafewminutes.So,youareadvisedtobecarefulabout34passwordssothattheywillbehardtobreak.Youarealsoadvisednottomakethem35hardtoremember.Meanwhile,youneedtochangethemonceinawhile.

24、Spaceisadangerousplace,notonlybecauseofmeteorsbutalsobecauseofraysfromthesunandotherstars.Theatmosphereagainactsasourprotectiveblanketonearth.Lightgetsthroughandthisisessentialforplantstomakethefoodwhichweeat.Heat,too,makesourenvironmentendurable.Variouskindsofrayscomethroughtheairfromouterspace,butenormousquantitiesofradiationfromthesunarescreenedoff.Assoonasmenleavetheatmospheretheyareexposedtothisradiation.Buttheirspacesuitsorthewallsoftheirspacecraft,iftheyareinside,dopreventalotofradiationdamage.Radiationisthegreatestknowndangertoexplorersinspace.Theunitofradiationiscalled“rem”.Scientistshavereasontothinkthatamancanputupwithfarmoreradiationthan0.1remwithoutbeingdamaged;thefigureof60remshasbeenagreedon.Thetroubleisthatitisextremelydifficulttobesureaboutradiationdamage－apersonmayfeelperfectlywell,butthecellsofhisorhersexorgansmaybedamaged,andthiswillnotbediscovereduntilthebirthofdeformed（畸形的）childrenorevengrandchildren.MissionsoftheApolloflightshavehadtocrossbeltsofhighradiationand,duringtheoutwardandreturnjourneys,theApollocrewaccumulatedlargeamountofrems.Sofar,nodangerousamountsofradiationhavebeenreported,buttheApollomissionshavebeenquiteshort.Wesimplydonotknowyethowmenaregoingtogetonwhentheyspendweeksandmonthsoutsidetheprotectionoftheatmosphere,workinginaspacelaboratory.Drugsmighthelptodecreasethedamagedonebyradiation,butnoreallyeffectiveoneshavebeenfoundsofar.Wecaninferfromthispassage____.（）A.exposuretoeventinyamountsofradiationisfatalB.theeffectofexposuretoradiationisslowincomingC.radiationisavoidableinspaceexplorationD.astronautsinspacesuitsneedn'tworryaboutradiationdamage

25、Teachersaresomeofthemostimportantprofessionalsintheworld.Theyareresponsible（21）preparingfuturegenerationstobecomeproductiveandhonestcitizens，whowill（22）tosocietyforthewholeoftheiradultlife.Obviously，themostcommonreason（23）teachersdecidetoteachistheabilitytomakeadifference.Therearemanyprofessionsthatgivepeopletheabilitytohavea（n）（24）impactontheworldandchangepeople'slives，（25）fewprofessionshaveadirectimpacton（26）abettersocietyasteachersdo.Peopletendto（27）theirteachersforyearsaftertheyfinishschool，forgoodteacherscan（28）theirstudentstobecomesomethingthatthey（29）thoughttheycouldbe，ortowork（30）afieldthattheythoughttheydidnot（31）.Teachersarealsoimportantbecausetheyprovide（32）fortheirstudents.Incertainiow-incomeareas（33）somestudentsmaynothavebothoftheirparents（34），teacherscanprovideanimportantinfluencethathelpstheirstudentsmaketheright（35），evenwhentheyarenotintheclassroom.Generally，teachers'impactonstudentscanlastallthroughtheirlife.第（28）题选查看材料A.inspireB.forceC.orderD.demand

26、Enoughsleepisimportanttohealth.Theamountofsleep21dependsontheageofthepersonandtheconditionsinwhichsleep22.Theyoungmayneedmoresleepthantheold,but23eighthoursisenoughforthehealthofgrown-ups.Somecandowithlessthanthisamountbut24mayneedmore.Everypersonknowshisownneed.Itisthenamatterofhowto25it.Sleepshouldbealwaysenoughtomakeonerelaxed(松弛)andreadyfor26work.Fres