2024年全国成考（专升本）之英语（专升本）考试重点试卷(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。

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1、HaveyoueverhadtodecidewhethertogoshoppingorstayhomeandwatchTVonaweekend?Nowyou21dobothatthesametime.Homeshoppingtelevisionnetworks（网络）havebecomea22formanypeopletoshopwithout23havingtoleavetheirhome.Someshoppersare24ofdepartmentstoresandsupermarkets-fightingthecrowds,waitinginlonglines,andsometimeshavingslight25offindinganythingtheywanttobuy.They'drathersitquietlyathomeinfrontoftheTVsetandwatchafriendlyannouncerdescribeaproduct26amodelshowsit.Andtheycanshoparoundtheclock,buyingsomething27bymakingaphonecall.Departmentstoresandevenmail-ordercompaniesare28tojoininthesuccessofhomeshopping.Largedepartmentstoresarebusy29theirownTVchannels（频道）toencourageTVshoppinginthefuture.Customerscanaskquestionsaboutproductsandplace30,allthroughtheirTVsets.Willshoppingbytelevision31taketheplaceofshoppinginstores?Someindustrymanagersthinkso.32manypeoplefindshoppingatarealstoreagreatenjoyment.Andformanyshoppers,itisstillimportantto33ortryondressestheywanttobuy.That's34specialistssaythatinthefuture,homeshoppingwill35togetherwithstoreshoppingbutwillneverentirelyreplaceit.A.whereB.whyC.whatD.which

2、HaveyoueverhadtodecidewhethertogoshoppingorstayhomeandwatchTVonaweekend?Nowyou21dobothatthesametime.Homeshoppingtelevisionnetworks（网络）havebecomea22formanypeopletoshopwithout23havingtoleavetheirhome.Someshoppersare24ofdepartmentstoresandsupermarkets-fightingthecrowds,waitinginlonglines,andsometimeshavingslight25offindinganythingtheywanttobuy.They'drathersitquietlyathomeinfrontoftheTVsetandwatchafriendlyannouncerdescribeaproduct26amodelshowsit.Andtheycanshoparoundtheclock,buyingsomething27bymakingaphonecall.Departmentstoresandevenmail-ordercompaniesare28tojoininthesuccessofhomeshopping.Largedepartmentstoresarebusy29theirownTVchannels（频道）toencourageTVshoppinginthefuture.Customerscanaskquestionsaboutproductsandplace30,allthroughtheirTVsets.Willshoppingbytelevision31taketheplaceofshoppinginstores?Someindustrymanagersthinkso.32manypeoplefindshoppingatarealstoreagreatenjoyment.Andformanyshoppers,itisstillimportantto33ortryondressestheywanttobuy.That's34specialistssaythatinthefuture,homeshoppingwill35togetherwithstoreshoppingbutwillneverentirelyreplaceit.A.comfortablyB.cheaplyC.simplyD.quickly

3、Iaswellasallyourfriends____busytoprepareforyourbirthdayparty.（）A.amB.areC.isD.who

4、选出发音与其他不同的一项A.gainB.gangC.giantD.grain

5、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.

6、Therearevariouswaysinwhichindividualeconomicunitscaninteractwithoneanother.Threebasicwaysmaybedescribedasthemarketsystem,theadministeredsystem,andthetraditionalsystem.Inamarketsystemindividualeconomicunitsarefreetointeractamongeachotherinthemarketplace.Itispossibletobuycommoditiesfromothereconomicunitsorsellcommoditiestothem.Inamarket,transactionmaytakeplaceviabarterormoneyexchange.Inabartereconomy,goodssuchasautomobiles,shoesandpizzasaretradedagainsteachother.Obviously,findingsomebodywhowantstotrademyoldcarinexchangeforasailboatmaynotalwaysbeaneasytask.Hence,theintroductionofmoneyasamediumofexchangeeasestransactionsconsiderably.Inthemodernmarketeconomy,goodsand-servicesareboughtorsoldformoney.Analternativeforthemarketsystemisadministrativecontrolbysomeagencyoveralltransactions.Thisagencywillissueedicts(orders)orcommandsastohowmuchofeachgoodandserviceshouldbeproduced,exchanged,andconsumedbyeacheconomicunit.Centralplanningmaybeonewayofadministeringsuchaneconomy.Thecentralplan,drawnupbythegovernment,showstheamountsofeachcommodityproducedbythevariousfirmsandallocatedtodifferenthouseholdsforconsumption.Thisisanexampleofcompleteplanningofproduction,consumption,andexchangeforthewholeeconomy.Inatraditionalsociety,productionandconsumptionpatternsaregovernedbytradition;everyperson'splacewithintheeconomicsystemisfixedbyparentage(origin),religion,andcustom.Transactionstakeplaceonthebasisoftradition,too.Peoplebelongingtoacertaingrouporcaste(socialclass)mayhaveanobligationtocareforotherpersons,providethemwithfoodandshelter,carefortheirhealth,andprovidefortheireducation.Clearly,inasystemwhereeverydecisionismadeonthebasisoftraditionalone,progressmaybedifficulttoachieve.Astagnant(unchanging)societymayresult.Accordingtothepassage,whohasthegreatestdegreeofcontrolinanadministeredsystem?（）A.IndividualhouseholdsB.SmallbusinessC.MajorcorporationsD.Thegovernment

7、We′11visitEuropenextyear__________wehaveenoughmoney.A.lestB.untilC.unless"D.provided

8、--Howdidyoufindyourvisittothemuseum?--Ithoroughlyenjoyedit.Itwas____thanIexpected.（）A.farmoreinterestingB.evenmuchinterestingC.somoreinterestingD.alotmuchinteresting

9、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.

10、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.

11、Neitherofyourproposals____.（）A.makesenseB.arepracticalC.makessenseD.makesenses

12、Ilearnedhowtoacceptlifeasitisfrommyfather.21,hedidnotteachmeacceptancewhenhewasstrongandhealthy.Myfatherwas22astrongmanwholovedbeingactive,butaterribleillnesstookallthat23.Nowhecannolongerwalk.Eventalkingisdifficult.Onenight,Iwenttovisithimwithmysisters,westarted24aboutlife,andItoldthemaboutoneofmy25.Isaidthatwemustalwaysgivethingsup26wegrowouryouth,butitalways27thatafterwegivesomethingup,wegainsomethingnewinits28.Thensuddenlymyfather29up.Hesaid,“But,Peter,Igaveup30!WhatdidIgain?”Ithoughtandthought,butIcouldnotthinkofanythingtosay.31,heansweredhisownquestion:“Igaintheloveofmyfamily.”Ilookedatmysisters,andsawtearsintheireyes,alongwithhopeandthankfulness.Iwasalso32byhiswords.Afterthat,whenIbegantofeelirritated（愤怒的）atsomeone,I33rememberhiswordsandbecome34.Ifhecouldreplacehisgreat35withafeelingofloveforothers,thenIshouldbeabletogiveupmysmallirritations.A.backB.placeC.directionD.way

13、PassageTwoEveryyearjustafterChristmastheJanuarySalesstart.Alltheshopsreducetheirpricesandfortwoweeks,theyarefullofpeoplelookingforbargains.MyhusbandandIdonotnormallygotothesalesaswedon′tlikecrowdsandinanycaseareshortofmoneyaswehavetobuylotsofChristmaspresents.Lastyear,however,ItookmyhusbandwithmetothesalesatthelargeshopinthecenterofLondon.Webothneededsomenewclothesandwerehopingtofindatelevisionset.WhenwegottoOxfordStreet,itwassocrowdedthatwedecidedtosplitupandmeetagainattheundergroundstation.SoIleftmyhusbandandstartedlookingaroundtheshops.Unfortunatelyalltheclotheswereinverylargesizesandsowerenotsuitableforme.ButIdidbuyatelevisionataverycheapprice,soIfeltquitepleasedwithmyself.WhenIarrivedatthestation,myhusbandwasnotthere.SoIsatdowninanearbycar6tohaveacupoftea.IquicklyfinishedmyteawhenIsawmyhusbandandwentouttomeethim.Helookedveryhappy.ThenIsawhewascarryingalargeandheavycardboardbox."Oh,dear!"Ithought.Yes,wehadnonewclothesbuttwotelevisions.Weshallnotbegoingtothesalesagain.Inthispassage,theword"bargain"couldbestbereplacedby"something__"A.giventopeopleB.offeredatareducedpriceC.offered,soldorboughtwhichisexpensiveD.soldforthepurposeofreachinganagreement

14、Scientistswhostudythebrainhavefoundoutagreatdealabouthowwelearn.Theyhave21thatbabieslearnmuchmorefromthesightsandsoundsaroundthemthanwe22before.Youcanhelpyourbabybytakingadvantageofherhungertolearn.Fromthe23beginning,babiestrytoimitatethe24theyhearusmake.They“read”the25onourfacesandourmovements.Thatis26itissoimportanttotalk,singandsmiletoyourchild.Hearingyoutalkisyourbaby'sfirst27towardbecomingareader,becauseit28hertolovelanguageandtolearnwords.Asyourchildgrowsolder,29talkingwithher.Askheraboutthethingsshedoes.Askherabouttheeventsandpeopleinthestoryyou30together.Letherknowyouarecarefully31whatshesays.Bykeepingherin32andlistening,youare33encouragingyourchildtothinkasshespeaks.34,youareshowingthatyourespectherknowledgeandherabilityto35learning.A.didB.wishedC.watchedD.thought

15、根据以下材料，回答44-44题OnadryandcoldFridayafternoonlastOctober,SharonSelineexchangedtextmessageswithherdaughterwhowasincollege.They"chatted"backandforth,withthemomaskinghowthingsweregoingandthedaughteransweringpositivelyfollowedbyemoticons(表情符)showingsmiles,b-i-gsmilesandhearts.Laterthatnight,herdaughterattemptedsuicide.Inthedaysthatfollowed,itcametolightthatshe'dhiddenherselfinherdorm,cryingandshowingsignsofdepression--acompletelydifferentrealityfromtheonethatsheconveyedintextsandFacebookposts.Ashumanbeings,ouronlyrealmethodofconnectionisthroughrealcommunication.Studiesshowthatonly7%ofcommunicationisbasedonwritingandspeaking.Themajorityof93%isbasedonbodylanguage.Indeed,it'sonlywhenwecanhearatoneofvoiceorlookintosomeone'seyesthatwe'reabletoknowwhen"I'mfine"doesn'tmeanthey'refineatall.Thisiswheresocialmediagetsrisky.Withmoderntechnology,anyonecanhidebehindthetext,thee-mail,ortheFacebookpost,projectinganyimagetheywantandcreatingafalseimageoftheirchoosing.Theycanbewhoevertheywanttobe.Andwithouttheabilitytoreceivebodylanguage,theiraudiencesarenonethewiser.Thispresentsaparadoxwhichdoesn'texistbefore.Withallthepowerfulsocialtechnologiesatourfingertips,wearemoreconnected--andpotentiallymoredisconnected--thaneverbefore.Everyrelevantmetric(衡量标准)showsthatweareinteractingatagreatspeedandfrequencythroughsocialmedia.ButarewereallycommunicatingWith93%ofourcommunicationcontext(语境)lost,wearenowattemptingtoestablishrelationshipsandmakedecisionsbasedonphrasesoremoticons,whichmayormaynotaccuratelyrepresentthetruth.WhatisthebesttitleforthepassageA.SocialMediaandItsFunctionB.SocialMediaandItsAbusesC.SocialMediaandItsFutureD.SocialMediaandItsRisks

16、IoncewenttoatowninthenorthofEnglandonbusiness.Itwasabout7:30intheeveningwhenIreachedthehotel.Themanageress,astrictoldladyof?about60,showedmetomyroom.WhenIaskedherwhattimedinnerwas,shesaidtherewasonly?onesittingat6:30,andIhad_____21_____it."Nevermind,"Isaid."I′mnotveryhungry.I′11justhaveadrinkinthebar(酒吧)anda?sandwich.""Bar!"she____22______hervoice."Thisisarespectablehotel,youngman.Ifyouwantbeer,you?mustgosomewhereelse."Shespoke____23______aglassofbeerwasadangerousdrug.Iwenttoabarandhadsomebeerandsandwichesandthenwenttothecinema.Atabout11:30I_____24_____.Everythingwasindarkness.Iknockedatthedoor,butnothinghappened.The_____25_____sound?wasthe′churchclockopposite,whichsuddenlystruckthehalf-hourwithsuchforcethatitmademe?jump._____26_____awindowopenedupstairs.Theoldlady_____27_____andaskedmewhatwasgoingon.I?explainedwhoIwasandsheletme_____28_____aftertenminutes′wait.Shewasinhernightdress.She?toldmeseriouslythatguestswere_____29_____tobebackinthehotelby11o′clock.Iwenttobedbutcouldnotsleep.Everyquarterofanhourthechurchclockstruckandatmidnightthewholehotelshookwiththenoise.Justbeforedawn,Ifinally_____30_____WhenIarrivedatbreakfast,everyoneelsehadnearly_____31_____andtherewasnotenoughcoffee?togoround."Didyou_____32_____well,youngman?"theoldladyasked."_____33_____,Idon′tthinkIcouldgothroughanothernightinthatroom,"Ireplied."Ihardly?sleptatall.""That"sbecauseyouwere_____34_____allnightdrinking!"shesaidangrily,putting____35______tothe?conversation.

17、AninterestingprojectcalledBlueZonesisrecordingthelifestylesecretsofthecommunitieswiththehighestconcentrationsofintheworld.ThepeopleinthefiveregionsinEurope,LatinAmerica,AsiaandtheUSthatlivetobe100havealotgoingforthem.Genesprobablyplayasmallrole,butthesefolksalsohavestrongsocialties,tightly-knitfamiliesandlotsofopportunitiestoexercise.AswewereexaminingthedietarysecretsoftheBlueZones,asdescribedinauthorDanBuettner'slatestbook,TheBlueZonesSolution,wewerestruckbyhowessentialteadrinkingisintheseregions.Infact,Buettner'sBlueZonesBeverageRule—akindofguidelinesummarizedfromhis15orsoyearsofstudyingtheseplaces—is:"Drinkcoffeeforbreakfast,teaintheafternoon,wineat5p.m."Sciencehasplentytosayaboutthehealthfulvirtuesofgreentea.Researchersaremostenthusiasticaboutthecomponentsingreentea,aswellasfoodslikecocoa.WhymighttheyhelpsomanyOkinawansinJapanbreak100?Somecomponentsingreenteacanlowertheriskofstroke,heartdiseaseandseveralcancers.Onereviewstudyalsofoundthatdrinkinggreenteacanslightlyimprovemetabolism（新陈代谢）.IfyoufindyourselfontheislandofIkaria,theGreekBlueZoneinthemiddleoftheAegean,youwon'tbeofferedanyteamadewithtealeaves.Instead,Ikarianstypicallymaketheirdailycupofteawithjustonefreshherbthattheyhavepickedthemselvesthatday—eitherrosemary,wildsage,oregano,marjoram,mintordandelion,allplantsthatmayhaveanti-inflammatory（消炎的）properties,whichmayhelplowerbloodpressure.ThiscouldexplainIkaria'sverylowdementia（痴呆）rate,sincehighbloodpressureisariskfactorforthedisease.WhatmaytheteaIkariansdrinkdailyhelp?（）A.ToimprovemetabolismB.TolowerbloodpressureC.TolowerlifestressD.Toimprovesocialrelationships

18、MaryAnning(1799-1874)wasaBritishfossilhunterwhobeganfinding21child,andsoonsupportedherselfandhervery22familybyfindingandsellingfossils.Very23isknownaboutherlife,butherfatherwasacabinetmakerandhealso24localfossils.Mary25onthesoutherncoastofEngland,inatowncalledLymeRegis.Itsfamous26bytheseacontain27fossillayersthat28fromtheTriassic,JurassicandCretaceousperiods(the29ofthedinosaurs,otherbizarrereptiles,largeinsects,seacreatures,30mammals,and31lifeforms).MaryAnning32andpreparedthefirstfossilizedplesiosaur(anocean-dwellingreptile)andthefirstIchthyosaurus(anocean-dwellingreptilethat33likeadolphin).Shefoundmanyotherimportantfossils,includingPterodactylus(aflyingreptile),sharks(andotherfish),andsoon.34withherbrotherJoseph,Marysuppliedpreparedfossilspecimens35museums,scientists,andprivatecollections.A.littleB.manyC.afewD.alittle

19、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.classesB.showsC.lessonsD.prize

20、Wecouldn′teatinarestaurantbecause__ofushad__moneyonus.A.all;noB.any;noC.none;anyD.noone;any

21、HaveyoueverhadtodecidewhethertogoshoppingorstayhomeandwatchTVonaweekend?Nowyou21dobothatthesametime.Homeshoppingtelevisionnetworks（网络）havebecomea22formanypeopletoshopwithout23havingtoleavetheirhome.Someshoppersare24ofdepartmentstoresandsupermarkets-fightingthecrowds,waitinginlonglines,andsometimeshavingslight25offindinganythingtheywanttobuy.They'drathersitquietlyathomeinfrontoftheTVsetandwatchafriendlyannouncerdescribeaproduct26amodelshowsit.Andtheycanshoparoundtheclock,buyingsomething27bymakingaphonecall.Departmentstoresandevenmail-ordercompaniesare28tojoininthesuccessofhomeshopping.Largedepartmentstoresarebusy29theirownTVchannels（频道）toencourageTVshoppinginthefuture.Customerscanaskquestionsaboutproductsandplace30,allthroughtheirTVsets.Willshoppingbytelevision31taketheplaceofshoppinginstores?Someindustrymanagersthinkso.32manypeoplefindshoppingatarealstoreagreatenjoyment.Andformanyshoppers,itisstillimportantto33ortryondressestheywanttobuy.That's34specialistssaythatinthefuture,homeshoppingwill35togetherwithstoreshoppingbutwillneverentirelyreplaceit.A.WhenB.YetC.HoweverD.So

22、Thereisapopularbeliefamongparentsthatschoolsarenolongerinterestedinspelling.No?schoolIhavetaughtinhaseverignoredspellingorconsidereditunimportantasabasicskill.There?are,however,vastlydifferentideasabouthowtoteachit,orhowmuchpriorityitmustbegiven?overgenerallanguagedevelopmentandwritingability.Theproblemis,howtoencourageachildto?expresshimselffreelyandconfidentlyinwritingwithoutholdinghimbackwiththecomplexitiesof?spelling.Ifspellingbecomestheonlyfocalpointofhisteacher′sinterest,clearlyabrightchildwillbelikely?to"playsafe".Hewilltendtowriteonlywordswithinhisspellingrange,choosingtoavoidadventurous?language.That′swhyteachersoftenencouragetheearlyuseofdictionariesandpayattentiontocontent?ratherthantechnicalability.Iwasonceshockedtoreadonthebottomofasensitivepieceofwritingaboutapersonalexperience:"Thisworkisterrible!Therearefartoomanyspellingerrorsandyourwritingisillegible(难以辨认的)."Itmayhavebeenasharpcriticismofthepupil′stechnicalabilitiesinwriting,butit?wasalsoasadreflectionontheteacherwhohadomittedtoreadtheessay,whichcontainedsome?beautifulexpressionsofthechild′sdeepfeelings.Theteacherwasnotwrongtodrawattentiontotheerrors,butifhisprioritieshadcentredonthechild′sidea,anexpressionofhisdisappointmentwiththepresentationwouldhavegiventhepupilmoremotivationtoseekimprovement.Theexpression"playsafe"probablymeans__________.A.towritecarefullyB.todoasteacherssayC.tousedictionariesfrequentlyD.toavoidusingwordsoneisnotsureof

23、Spaceisadangerousplace,notonlybecauseofmeteorsbutalsobecauseofraysfromthesun?andotherstars.Theatmosphereagainactsasourprotectiveblanketonearth.Lightgetsthrough,and?thisisessentialforplantstomakethefoodwhichweeat.Heat,too,makesourenvironmentendurable.Variouskindsofrayscomethroughtheairfromouterspace,butenormousquantitiesofradiationfromthesunarescreenedoff.Assoonasmenleavetheatmospheretheyareexposedtothisradiation.Buttheirspacesuitsorthewallsoftheirspacecraft,iftheyareinside,dopreventalotofradiationdamage.Radiationisthegreatestknowndangertoexplorersinspace.Theunitofradiationiscalled"rein".Scientistshavereasontothinkthatamancanputupwithfarmoreradiationthan0.1rem?withoutbeingdamaged;thefigureof60remshasbeenagreedon.Thetroubleisthatitisextremely?difficulttobesureaboutradiationdamage—apersonmayfeelperfectlywell,butthecellsofhisor?hersexorgansmaybedamaged,andthiswillnotbediscovereduntilthebirthofdeformed(畸形的)childrenorevengrandchildren.MissionsoftheApolloflightshavehadtocrossbeltsofhighradiation?and,duringtheoutwardandreturnjourneys,theApollocrewaccumulatedalargeamountofrems.So?far,nodangerousamountsofradiationhavebeenreported,buttheApollomissionshavebeenquite?short.Wesimplydonotknowyethowmenaregoingtogetonwhentheyspendweeksandmonths?outsidetheprotectionoftheatmosphere,workinginaspacelaboratory.Drugsmighthelptodecrease?thedamagedonebyradiation,butnoreallyeffectiveoneshavebeenfoundsofar.Itcanbeinferredfromthepassagethat__A.theApollomissionwasverysuccessfulB.protectionfromspaceradiationisnoeasyjobC.astronautswillhavedeformedchildrenorgrandchildrenD.radiationisnotathreattowell-protectedspaceexplorers

24、Asmytrainwasn'tduetoleaveforanotherhour,Ihadplentyoftimetospare.Afterbuyingsomenewspaperstoreadonthejourney,ImademywaytotheluggageofficetocollecttheheavysuitcaseIhadlefttherethreedaysbefore.Therewereonlyafewpeoplewaiting,andItookoutmywallettofindthereceiptformycase.Thereceiptdidn'tseemtobewhereIhadleftit.Iemptiedthecontentsofthewallet,andrailway-tickets,money,scrapsofpaper,andphotographsfelloutofit;butnomatterhowhardIsearched,thereceiptwasnowheretobefound.Whenmyturncame,Iexplainedthesituationsorrowfullytotheassistant.Themanlookedatmesuspiciouslyasiftosaythathehadheardthistypeofstorymanytimesandaskedmetodescribethecase.Itoldhimthatitwasanold,brown-lookingobject,nodifferentfromthemanycasesIcouldseeontheshelves.Theassistantthengavemeaformandtoldmetomakealistofthechiefcontentsofthecase.Iftheywerecorrect,hesaid,Icouldtakethecaseaway.Itriedtoremembera