上海市闵行七校2024年高三最后一卷英语试卷含解析

上海市闵行七校2024年高三最后一卷英语试卷注意事项：1．答题前，考生先将自己的姓名、准考证号填写清楚，将条形码准确粘贴在考生信息条形码粘贴区。2．选择题必须使用2B铅笔填涂；非选择题必须使用0．5毫米黑色字迹的签字笔书写，字体工整、笔迹清楚。3．请按照题号顺序在各题目的答题区域内作答，超出答题区域书写的答案无效；在草稿纸、试题卷上答题无效。4．保持卡面清洁，不要折叠，不要弄破、弄皱，不准使用涂改液、修正带、刮纸刀。第一部分（共20小题，每小题1.5分，满分30分）1．Thiscarisimportanttoourfamily.Wewouldrepairitatourexpense_______itbreakdownwithinthefirstyear.A．could B．wouldC．might D．should2．MarkhaslivedinChinaformanyyears,yethestillcan't________himselftotheChinesecustoms.A．observe B．adaptC．lead D．devote3．—IheardMr.Morganwouldbehereat4:00pm.nextThursday.—No,he_____atthattime.A．wasboardingB．wouldbeboardingC．willbeboardingD．isboarding4．Generallyspeaking,________accordingtothedirections,themedicinehasnosideeffect.A．whentakenB．whentakingC．whentotake D．whentobetaken5．Nomatterhowcarefullyyouplanyourfinances,noonecan_______whentheunexpectedwillhappen.A．prove B．implyC．demand D．predict6．---Hello,Tom.ThisisMaryspeaking.---Whatacoincidence!I_________aboutyou.A．justthought B．wasjustthinkingC．havejustthought D．wouldjustthink7．－Youknow,peoplehavedifferentopinionsabouttheconstructionoftheproject.－Wewelcomeanycommentsfromthem,favorableor_______.A．so B．otherwiseC．else D．rather8．—ThemovieLalalandisawesome.It’sreallyapitythatyoudidn’tmakeit.—Sorry,I________.Iwastoobusythen.A．didn’tB．didC．wouldn’tD．would9．---Hi,Betty,areyoufreeatpresent?Ihavetoaskyouforafavor．----_____．Withpleasure．A．Sorry,Iambusy B．GoaheadC．Helpyourself D．Ask,please10．Teachersinprimaryschools______influencethekidsfallundershouldberolemodels.A．whose B．whoC．where D．which11．Youhavetorewritethemonthlyreportbecauseyou_____manyimportantdetails.A．turnedoff B．leftoutC．droppedby D．putup12．—Whatdoyouwanttodonext?Wehavehalfanhouruntilthebasketballgame.—_____.Whateveryouwanttodoisfinewithme.A.It’suptoyou B．GladtohearthatC．Youcan’tmissit D．Itjustdepends13．Thisisaveryinterestingbook.I’llbuyit，________.A．howmuchmayitcost B．nomatterhowitmaycostC．howevermuchitmaycost D．whatevermayitcost14．Johnonceworkedinaremotemountainvillageschool,whichis______onlyonfoot.A．accessible B．acceptable C．available D．appropriate15．Agathadidn’ttellme______shewouldpickuphersonfromschool.A．whichB．whenC．whereD．what16．Themoviecouldn’tbemoreboring.IwishI________toit.A．hadnotbeen B．havenotbeenC．didnotgo D．havenotgone17．Thesolutiontoaproblem，wearetold，oftencomestothinkersina"flashof________"．A．inspiration B．insightC．invitation D．innovation18．Wheneveryou________apresent,youshouldthinkaboutitfromthereceiver’spointofview.A．bought B．havebought C．willbuy D．buy19．Whenallissaidanddone,theredoesn’tseemtobe________amysterytoexplain.A．kindof B．closetoC．farfrom D．muchof20．---Icannot_____whatIhavedonetoannoyJessica.---Noworries.Sheiskindofsensitive.A．turnout B．makeout C．putout D．leaveout第二部分阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。21．（6分）You’llprobablynevergotoMarsorsingonthestagewiththeRollingStones.Butifvirtualreality(VR)everlivesuptoitspromise,youmightbeabletodoallthesethings—andmanymore—withoutevenleavingyourhome.Unlikerealreality,virtualrealitymeanssimulating(模仿)bitsofourworld.Apartfromgamesandentertainment,it’slongbeenusedfortrainingairlinepilotsandsurgeonsandforhelpingscientiststofigureoutcomplexproblemssuchasthestructureofproteinmolecules(分子).Thenhowdoesitwork?Closeyoureyesandthinkofvirtualrealityandyouprobablypicturesomethinglikethis:amanwearingawrap-aroundheadsetanddatagloveswiredintoapowerfulworkstationorsupercomputer.WhatdistinguishesVRfromanordinarycomputerexperienceisthenatureoftheinputandoutput.Whereanordinarycomputerusesthingslikeakeyboard,mouse,orspeechrecognitionforinput,VRusessensorsthatdetecthowyourbodyismoving.AndwhereaPCdisplaysoutputonascreen,VRusestwoscreens(oneforeacheye),surround-soundspeakers,andmaybesomeformsoftouchandbodyfeedbackaswell.VRhasbeenroutinelyusedbyscientists,doctors,dentists,engineers,architects,archaeologists,andthemilitaryforaboutthelast30years.Difficultanddangerousjobsarehardtotrainfor.Howcanyousafelypracticetakingatriptospace,makingaparachutejump,orcarryingoutbrainsurgery?Allthesethingsareobviouscandidatesforvirtualrealityapplications.Likeanytechnology,virtualrealityhasbothgoodandbadpoints.Criticsalwaysraisetheriskthatpeoplemaybeaddictedtoalternativerealitiestothepointofignoringtheirreal-worldlives—butthatcriticismhasbeenleveledateverythingfromradioandTVtocomputergamesandtheInternet.Likemanytechnologies,VRtakeslittleornothingawayfromtherealworld:youdon’thavetouseitifyoudon’twantto.1、Whatequipmentdoweprobablyneedforvirtualreality?A．Akeyboard,aheadsetandasupercomputer.B．Aheadset,dataglovesandaspeechrecognition.C．Aheadset,dataglovesandasupercomputer.D．Akeyboard,amouseandaspeechrecognition.2、Paragraph3ismainlyabout.A．theprinciplesofvirtualrealityB．theapplicationsofvirtualrealityC．thehistoryofvirtualrealityD．theinfluencesofvirtualreality3、Accordingtothepassage,virtualrealitymeans.A．imaginingbeautifulthingsinourmindB．creatingsomethingthatdoesn’texistC．experiencingthingsthatdon’treallyexistD．cloningsomethingthathasdiedout4、Whatisthewriter’sattitudetowardsVR?A．Appreciative.B．Cautious.C．Skeptical.D．Indifferent.22．（8分）Weighingtoomuchcandamageyourhealth,andobesityisagrowingproblemforbothkidsandadultsaroundtheworld.Sleepmightbeoneanswertotheproblem.Anewstudyhasfoundthatelementaryschoolstudentswhoslepttoolittleweremorelikelytogainpounds.Paststudieshaveshownalinkbetweensleepinglessandweighingmore,butscientistshavehadatoughtimedetermining"whichcamefirst,thechickenortheegg,"saysJulieC．LumengoftheuniversityofMichiganinAnnArbor.Inotherwords,ithasn'tbeenclearwhetherkidswhoweightoomuchhavetroublesleeping,orwhethersleepinglessleadstoweightgain.Bothscenarios(可能出现的情况)seemedequallypossible.Togetabetterideaofwhichcauseswhich,Lumengandhercolleaguesinterviewedtheparentsof785thirdgradersfromaroundtheUnitedStates.Theparentsansweredquestionsabouthowwelltheirkidssleptthatyear.Threeyearslater,theparentsansweredthesamequestions.Bysixthgrade,18percentofkidsinvolvedinthestudywereobese.Thescientistsfoundnorelationshipbetweenweightandthestudents'raceorgender.Italsodidn'tmatterhowstricttheirparentswere,orwhethertheywereboysorgirls.Obesitystruckallofthesegroupsequally.Instead,sleepseemedtobethekeyfactor.Overthethreeyearsofstudy,thechildrenaveragedahealthy9.5hoursofsleepanight.Somekids,however,sleptalotmoreorlessthanothers.Forthesixthgraders,everyhourofsleepabovethe9.5houraveragewaslinkedtoa20percentlowerriskofbeingobese.Sleepappeareddoublyimportantforthethirdgraders.Everyextrahourofsleeptheygotwaslinkedtoa40percentdropinobesity.1、Whatdoestheunderlinedsentenceonparagraph2imply?A．Scientistshavefoundtheexactcausesofchildren'sobesity.B．ThereisalwayssomethingdifficulttounderstandthroughtheoryC．Thecause–effectrelationshipbetweenweightandsleepisn'tclear.D．Aperson'sweighthassomethingtodowiththeamountofhissleep.2、Whatdidtheinterviewfindout?A．9.5hoursofsleepanightisenoughforchildren.B．Themoreachildsleeps,thehealthierhewillbe.C．Sixthgradersneedmuchmoresleepthanthirdgraders.D．One’sraceorgenderhasnothingtodowithhisweight.3、Howdoestheauthordevelopthepassage?A．BylistingfiguresB．BycomparingdifferentopinionsC．ByprovidingexamplesD．Byconductingasurvey4、Whatisthesuitabletitleforthepassage?A．ThebenefitsofenoughsleepforchildrenB．SleepinglessincreasestheriskofobesityC．Whichcomesfirst,littlesleeporobesityD．Howmanyhoursofsleepdochildrenneed?23．（8分）Adozeninternationalcoffeeexpertsshuffle（把脚挪来挪去）aroundalongwoodentable,pausingateachsteamingcup,headsdippingandsniffingdeeply.Thenthe

slurping（吃喝或吸吮的声音）begins.Inthewings,coffeefarmerYangFanwatchesintentlyasthejudgescircle,awaitingaverdict（裁定）onherlatestcropofbeans.Chinamaybethespiritualhomeoftea,butitisfastdevelopingareputationasatopcoffeeproducer.ThistastingwasasideeventtothefirsteverPu'erInternationalSpecialtyCoffeeExpoinChina'ssouthwesternYunnanprovince,whichranthiswinteranddrewmorethanathousandattendees,includingindustryaficionados(酷爱者)fromacrosstheglobe."CoffeehashugepotentialinChina,"saysLiuYing,whoswappedherlifeworkinginprivate-equity（私人股权）investmentinBeijingtogrowcoffeeinPu'erfiveyearsago."Theyoungergenerationpreferstodrinkcoffeeintheirofficesmuchmorethantea."Still,Pu'erremainssynonymouswithtea.Thisbustling（喧闹的）townneartheLaosborderissurroundedbythegreenhillsscoredwithteaplantations;itproducesavarietyofteawhichisalsocalledPu’er,consideredoneofChina'smostrefined.Buttheregion'smildclimateisalsoperfectforgrowingArabicacoffee.AndasChina'sfast-livingmillennialsmoveawayfromtraditionalteainfavoroftheinvigoratingcoffee,Pu'er'sfarmersarecateringtothedemand.Yunnanaccountsfor98%ofChina'scoffeeharvest,withhalfcomingfromthemistylandscapearoundPu'er.Today,Chinaisthe13thbiggestcoffeeproducerintheworld—risingfromzerooutputthreedecadesagoto136,000tonsannuallytoday.InApril,Seattle'sannualSpecialtyCoffeeExpodecidedtoshowcaseChinaasitsportraitcountryoforigin.ItfollowsontheheelsofStarbucks'launchingitsfirstsingle-originYunnancoffeelastyearaftereightyearsofpartnershipwithYunnanfarmers.Withglobalcoffeepricesatrecordlows,Yunnanfarmersareprocessingbeansinbespokewaystocreatedistinctflavors—allowingthemtoenterthemarketofspecialtycoffee."Atcurrentcoffeeprices,Ican'tevenfeedmyfamily,"saysthefarmerYang."Myonlywayoutistoproducespecialtycoffee,tomakethebestcoffeebeans."Thatmeanslettingbeansdryintheircherries,thusproducingawild,fruityflavorviaenvironmentalfermentation（发酵）,orallowingthemto"honey"intheirsugaryinnerlayer,whichaddsasubtlesweetness.Backinthetastingroom,Yangawaitstheexperts'verdictonwhetherallthatextraeffortwasworthwhile."IfItoldyouthiswasColombianorPanamacoffee,nobodywouldarguewithme,"saysSamuelGurel,CEOofPu'er'sTorchCoffeeRoasters,asYangbreaksintoahugegrin."It'sagreatexampleofhowChinesecoffeeisevolving."1、WhatcausedLiuYingtoquitherformerjobtogrowcoffeeinPu’er?A．Yunnanaccountsfor98%ofChina’scoffeeharvest.B．ThereisahugepotentialofcoffeemarketinChina.C．Shewantstointroducetheyoungergenerationtocoffee.D．Sheistiredofherworkinprivate-equityinvestment.2、Accordingtothepassage,weknowthatArabicacoffee__________.A．ismainlygrowninYunnanB．appealstoChinese,especiallytheyoungC．isamoreinvigoratingdrinkcomparedwithteaD．needsmildclimatetogrow3、The“extraeffort”inthelastparagraphrefersto__________.A．processingcoffeebeansinbespokewaystocreatedistinctflavorsB．formingabusinesspartnershipwithStarbucksC．loweringthepriceofYunnancoffeebeansD．replacingYunnancoffeewithColombianorPanamacoffee4、WhatdoesSamuelGurelthinkofYang’scoffeebeans?A．praiseworthy B．arguableC．inferior D．unsatisfactory24．（8分）WalkthroughtheAmazonrainforesttodayandyouwillfinditissteamy,warm,dampandthick.Butifyouhadbeenaround15,000yearsago,duringthelasticeage,wouldithavebeenthesame?Formorethan30years,scientistshavebeenarguingabouthowrainforestsliketheAmazonmighthavereactedtothecold,dryclimatesoftheiceages,butuntilnow,noonehasreachedasatisfyinganswer.RainforestsliketheAmazonareimportantformoppingupCO2fromtheatmosphereandhelpingtoslowglobalwarming.CurrentlythetreesintheAmazontakeinaround500milliontonsofCO2eachyear:equaltothetotalamountofCO2givingoffintheUKeachyear.ButhowwilltheAmazonreacttofutureclimatechange?Ifitgetsdrier,willitstillsurviveandcontinuetodrawdownCO2?Scientistshopethattheywillbeabletolearninadvancehowtherainforestwillmanageinthefuturebyunderstandinghowrainforestsreactedtoclimatechangeinthepast.Unfortunately,gettingintotheAmazonrainforestandcollectinginformationareverydifficult.Tostudypastclimate,scientistsneedtolookatfossilizedpollen,keptinlakemud.Goingbacktothelasticeagemeansdrillingdeepdownintolakesediments（沉淀物）whichrequiresspecializedequipmentandheavymachinery.Thereareveryfewroadsandpaths,orplacestolandhelicoptersandaeroplanes.Riverstendtobetheeasiestwaytoentertheforest,butthisstillleavesvastareasbetweentheriverscompletelyunsampled（未取样）.Sofar,onlyahandfulofcoreshavebeendrilledthatgobacktothelasticeageandnoneofthemprovideenoughinformationtoprovehowtheAmazonrainforestreactstoclimatechange.1、Whatdoestheunderlinedphrase“moppingup”inthesecondparagraphmean?A．Givingup B．TakinginC．Wipingout D．Givingout2、HowwilltheAmazonrainforestreacttofutureclimatechange?A．It'llgetdrierandcontinuetoremoveCO2.B．It'llremainsteamy,warm,dampandthick.C．It'llgetwarmerandthencolderanddrier.D．Thereisnoexactansweruptopresent.3、What'sthemainideaofthelastparagraph?A．It'shardtocollectinformationforstudiesofthepastclimateintheAmazonrainforest.B．It'simpossibletoprovehowclimatechangesintheAmazonrainforest.C．It'simportanttodrilldeepdownintolakesedimentstocollectinformation.D．It'snecessarytohavespecializedequipmentandmachinerytostudythepastclimate.4、Whatisthebesttitleforthispassage?A．StudiesoftheRainforests.B．ClimatesoftheAmazon.C．SecretsoftheIceAge.D．ChangesoftheRainforests.25．（10分）ItwasaFridaymorning,7:30a.m.IfelttoolazytodrivemycarsoIaskedmysontobookataxi.Infiveminutes,thetaxireachedtheentrancegate,waitingformyarrival.Ijustsawthecarnumberandenteredinsidethecar.IwassobusythatIdidn’tpayanyattentiontothedriver.Iwassearchingforanimportantpaperfrommybag,soIsaid,“Please,goquick!I’minahurry!”Thevoicecame,“Yes,Ma’am!”IwassurprisedwhenIheardafemalevoice!Istoppedmyworkforasecondandlookedatthedrive.Thedriverwasayounglady.Maybe,aroundthirtyorthirty-two!Forthefirsttime,Isawaladydrivingataxi!Hundredtimes,Ihadtraveledinataxi,butIneversawanyladydrivingataxi,Ididn’tknowwhyIbecamesoenthusiasticaboutknowingwhyshehadchosenthisprofession.SoIstartedtheconversation,“Ifyoudon’tmind,canIaskyousomequestions?”“Yes,ma’am!Noproblem.”“Iguess,youarewellqualified!”“Yes,ma’am.Ihavecompletedmyeducation.IhavedonemyMBAcourse.”“Oh,myGod!Whydidyouthenchoosethisprofession,insteadofgoingforanacademiccareer?”Shesmiledandthewaysheexpressedherviewsmademeamazed!Verypolitely,shesaid“Drivingwasmypassion(热情)frommychildhood,ma’am!OfcourseIdorespecteachandeveryjob.Inthiscase,atleastIfulfillmydesire!Ilovedriving!Idon’tmindforabigorsmalljob.IwantajobwhereIcangetsatisfaction.IgetoffersfromM.N.CbutIpreferthisonebecauseIlikeit!Iknow,Ican’tgetenoughmoneyoutofit,yetasItellyou‘Ilovedriving!’That’sit.”1、WhydidtheauthortakeataxitoworkthatFridaymorning?A．Becausehersondidn’twanthertodrive.B．Becauseshewastoolazytodrivehercar.C．Becauseshehadtotravelalongdistance.D．Becauseshehadtogotoworkinahurry.2、Forwhatpurposedidtheauthorstarttotalktothedriver?A．Togivesomeadviceonhowtodrivesafely.B．TolearnsomedrivingskillsfromthetaxidriverC．Toknowwhyshechoseadriverasherprofession.D．ToaskthedriversomethingabouttheMBAcourse.3、Whatcanweknowaboutthefemaledriver?A．Shewaswell-educated.B．Herservicewannotgood.C．Shedidn’tfinishherMBAcourse.D．Shewassurprisedtoseetheauthor.4、Whatattitudedotheauthorprobablykeeptothefemaledriver?A．objectiveB．favorableC．neutralD．notmentioned第三部分语言知识运用（共两节）第一节（每小题1.5分，满分30分）阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项．26．（30分）AgentlewindblewthroughJennifer'shair．Thegoldenredsunwas1．Shewasonthebeach，lookingupattheball．Shewasamazedbyits2，deepredinthemiddle，3fadingintoyellow.Shecouldhearnothingbutthe4andtheseagullsflyingupaboveinthesky．Theatmosphere5her．Afterallshehadbeenthrough，thisiswhatshe6．“It’sgettinglate，”shethought，“Imustgohome，myparentswillbe7whereIam．”Shewonderedhowherparentswouldreact，whenshegothomeafterthethreedaysshewas8Thesunhadsetbynowanditwasgetting9．Shetriedtoimaginehavingherfavorite10onuntilshesawherfrontdoorItseemeddifferent.11hadtakencareoftheoutsidegardenfordays．Shewas12:herfatherwasusuallysostrictaboutkeepingeverythingcleanandtidy,andnow…Itallseemed13．Shecouldn'tunderstandwhatwasgoingon．Sheenteredthe14．First，shewentintothekitchenwhereshesawa(n)15writtenbyherfather．Itsaid：“DearEllen，thereissomecoffeeready,Iwent16．”Ellenwashermotherbut—wherewasshe?Ontherightsideofthehallwaywasher17room．Shewentin．Thenshesawhermother,lyingonthebedsleeping．Her18lookedsotired，asifshehadn’t19fordays．Shewasreallypale．Jennyjustfellasleepbesideher．WhenJenniferwokeupshefoundsomething20．Shewasinhercosybedinhernightclothes．Itfeltsogoodbeingbackhome．Suddenlysheheardavoice．“Areyoufeelingbetternow,dear?Youknowyougotusvery,veryscared．”1、A．rising B．setting C．shining D．smiling2、A．shape B．shadow C．size D．color3、A．quickly B．partly C．softly D．probably4、A．waves B．boats C．trees D．sands5、A．relaxed B．puzzled C．disappointed D．interrupted6、A．understood B．considered C．needed D．regretted7、A．discussing B．finding C．asking D．wondering8、A．alive B．asleep C．missing D．hardworking9、A．sunny B．warm C．cold D．cloudy10、A．glasses B．hat C．skirt D．jacket11、A．Somebody B．Nobody C．Mother D．Father12、A．shocked B．scared C．exhausted D．comforted13、A．beautified B．rearranged C．deserted D．destroyed14、A．garden B．bedroom C．yard D．house15、A．book B．note C．article D．poste16、A．1ooking B．working C．fishing D．sightseeing17、A．own B．parents’ C．sister’s D．brother’s18、A．gesture B．body C．face D．eyes19、A．studied B．slept C．exercised D．moved20、A．different B．new C．precious D．dangerous第二节（每小题1.5分，满分15分）阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。27．（15分）Inthe17thcentury,dentistsdidtheirbest1．(make)falseteeth.Theproblem,however,wasnotmakingtheteeth,2．waskeepingtheminplace.Theyhadtotieeachtoothtotheoneoneithersideofit.Onlyrichpeoplecouldaffordfalseteeth,3．wereusuallymadeofgoldorsilver.Asmoreandmorepeoplewantednewteeth,poorpeople4．(sell)theirteethtotherichsothattheycouldbuyfoodandclothing.Duringthenext200years,manychangesweremadetofalseteethalthoughsomeofthesewerenotreallyimprovements.Towardstheendofthe19thcentury,forexample,cheapelasticteethwereintroduced.Buttheycaughtfirevery5．(easy),andanumberofmenwerebadlyburnedwhentheirteethcaughtfirewhiletheyweresmoking6．(cigarette).Nowadays,falseteeth7．(be)sowellmadeandlooksorealthatitisoften8．(possible)totellfromaperson’sappearancewhetherornottheyhavethem.Andin9．nearfuture,veryfewpeoplewillhavethemby10．(add)certainthingstothewaterwedrink,wehavebeenabletokeepourteethsohealthythatmostpeoplewillneverneedfalseteeth.第四部分写作（共两节）第一节短文改错（满分10分）28．（10分）短文改错假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下短文。短文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。删除：把多余的词用斜线（＼）划掉。修改：在错的词下划一横线，并在该词下面写出修改后的词。注意：1每处错误及其修改均仅限一词；2只允许修改10处，多者（从第11处起）不计分。Itwaslatewhenwelefttherestaurant.WehavealreadycrossedalongbridgewhenIdiscoveredIhadleftmypurseattherestaurant.Itwasnothingwecoulddobuttoturnaround.Therewasnochancewecouldreturntotherestaurantbeforetheclosingtime.Thenwerememberedafriendofourswholivedsixblockfromarestaurant.Helistenedtoourstorycarefullybutthenhepromisedhewouldrunovertotherestaurant,thatmypursehadbeenleft.Finally,werecoveredthepurse.Ourfriendsoundeddelightedlytohavebeenapartofthislittleadventure.Besidefindingthelostpurse,Ialsohadasenseofgreathappiness.第二节书面表达（满分25分）29．（25分）假如你是李华，你校的校园网将在2017年11月24日为高三学生开通一个英语复习交流博客。请你写信给你的美国笔友John，介绍这个博客，内容包括：1.开通博客的目的；2.博客的内容；3.欢迎John参加。注意：1.适当增加细节，以使行文连贯。2.字数100左右。DearJohn,_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Yours,LiHua

参考答案第一部分（共20小题，每小题1.