云南省绿春县二中2024届高三下学期联考英语试题含解析

云南省绿春县二中2024届高三下学期联考英语试题请考生注意：1．请用2B铅笔将选择题答案涂填在答题纸相应位置上，请用0．5毫米及以上黑色字迹的钢笔或签字笔将主观题的答案写在答题纸相应的答题区内。写在试题卷、草稿纸上均无效。2．答题前，认真阅读答题纸上的《注意事项》，按规定答题。第一部分（共20小题，每小题1.5分，满分30分）1．Themeetingplanned

nextMondayisveryimportant.A．tobeheldB．heldC．beingheldD．holding2．________iswillingtovolunteerinthe2022BeijingWinterOlympicsiswelcometojoinus.A．WhateverB．WhoeverC．WheneverD．Wherever3．______property,we’reamongtherichestpeopleinthiscity．A．Insearchof B．Inspiteof C．Inplaceof D．Intermsof4．（2018·海淀二模）—Excuseme,sir.Canyousparemeadollar________Icanbuythisbook?—Sure,noproblem.A．forB．soC．butD．or5．Theexplosioninthechemicalplant______avoidedhadthecountyauthorities,aimingtoomuchatshort-terminterests,performedtheirdutiesfromthebeginning.A．shouldbe B．mightbe C．musthavebeen D．couldhavebeen6．Touristsarerequiredto_________localcustomsandmindtheirmannerswhentravellingabroad.A．spot B．confirmC．observe D．spread7．worriesthepublicthatairpollutionisbecomingmoreandmoreseriousthesedays.A．It B．That C．What D．This8．--ItisreallyfuntohikeandIoftengohikingintheforest.--Buthikingaloneintheforest______beverydangerous.A．can B．must C．shall D．will9．Infrontofthewholeaudience,PremiereLimadehispromise______thegovernmentwouldtryitsbesttosolvetheproblemofpovertyinChina.A．whatB．whichC．whetherD．that10．_____isoftenthecase,wehaveworkedouttheproductionplan.A．WhichB．WhenC．WhatD．As11．，dear!Thingswon’tbeasbadasyouthink.Therecertainlywillbechancesforyou.A．Hurryup B．LookupC．Cheerup D．Makeup12．Jasonwillneverforgetabouthis18thbirthday,sawhisbeingadmittedtoHarvard.A．when B．which C．that D．it13．LeadersofmanycountrieshavebeentryingtowhatitisthatmakesChinadevelopsofastinrecentyears.A．carryout B．figureoutC．watchout D．makeout14．.---HowdidyouFrench?----IlivedinParisfortwoyearsbeforeIcametoEngland,soIgotlotsofpractice.A．gothrough B．pickup C．setup D．turnup15．Thelittleboystaredatthestrangemanquestioningly,not________whethertobelievewhathehadsaid.A．toknow B．knowingC．known D．havingknown16．SorryI’msolate,butyoucannotimagine________greattroubleItooktofindyourhouse.A．whichB．howC．whatD．that17．Rentusually________upinthesummer,whencollegegraduatesaremovingoutoftheirdormitoriesandseekingfornewplacestomovein.A．willgo B．goesC．hasgone D．went18．—HowIwishIhadworkedharderwhenIwasinthatcompany.—Ifyouhad,you_________adepartmentmanagernow.A．are B．wouldbeC．wouldhavebeen D．were19．Thestadium________standsatheatrewillbereconstructed.A．besidewhich B．forwhichC．when D．which20．—Thankyouverymuchforeverything．You'vebeensohelpful.—__．JustletmeknowifthereisanythingelseIcandoforyou． A．Withpleasure B．Thepleasureismine． C．Pleasedon'tsayso D．No,thanks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）“Howcanwelivelonger?”manypeoplewonder.Beingsociablelookslikeagoodwaytoaddyearstoyourlife.Relationshipswithfamily,friends,neighbors,evenpets,willalldothetrick,butthebiggestlongevity(长寿)boostseemstocomefrommarriageoranequalrelationship.Theeffectwasfirstnotedin1858byWilliamFarr,whowrotein1858byWilliamFarr,whowrotethatwidowsandwidowers(鳏夫)wereatamuchhigherriskofdyingthantheirmarriedpeers.Studiessincethensuggestthatmarriagecouldaddasmuchassevenyearstoaman’slifeandtwotoawoman’s,Theeffectholdsforallcausesofdeath,whetherillness,accidentorself-harm.Eventhoughtheoddsarestackedagainstyou(theconditionsarenotfavourabletoyou),marriagecanmorethancompensate.LindaWaiteoftheUniversityofChicagohasfoundthatamarriedoldermanwithheartdiseasecanexpecttolivenearlyfouryearslongerthananunmarriedmanwithahealthyheart.Likewise,amarriedmanwhosmokesmorethanapackadayislikelytoliveaslongasadivorcedmanwhodoesn’tsmoke.There’salesspleasantside,however,aspartnersaremorelikelytobecomeillordieinthecoupleofyearsfollowingtheirspouses;death,andcaringforaspousewithmentaldisordercanleaveyouwithsomeofthesamesevereproblems.Evenso,theoddsfavourmarriage.Ina30-yearstudyofmorethan10,000people,NicholasChristakisofHarvardMedicalSchooldescribeshowallkindsofsocialnetworkshavesimilareffects.Sohowdoesitwork?Theeffectsarecomplex,affectedbysocioeconomicfactor,health-serviceprovision,emotionalsupportandothermorephysiologicalmechanisms(机制).Forexample,socialcontactcanboostdevelopmentofthebrainandimmunesystem,leadingtobetterhealthandlesschanceofdepressionlaterinlife.Peopleinsupportiverelationshipsmayhandlestressbetter.Thentherearethepsychologicalbenefitsofasupportivepartner.Alifepartner,childrenandgoodfriendsareallrecommendedifyouaimtoliveto100.Thebestsocialnetworkisstillbeingmappedout,butChristakissays:“Peopleareinterconnectedsotheirhealthisinterconnected.”1、WilliamFarr’sstudyandotherstudiesshowthat________.A．sociallifeprovidesaneffectivecureforillnessB．beingsociablehelpsimproveone’squalityoflifeC．womenbenefitmorethanmenfrommarriageD．marriagecontributesagreatdealtolongevity2、Whatdoestheunderlinedword“compensate”inthesecondparagraphprobablymean?A．paymoney B．providesomethinghadC．helprecover D．increasedamage3、Whatdoestheauthorsayaboutsocialnetwork?A．Theyhaveeffectssimilartothoseofamarriage.B．Theyhelpdeveloppeople’scommunityspirit.C．Theyprovidetimelysupportforthoseinneed.D．Theyhelprelievepeopleoftheirlife’sburden.4、Whatcanbeinferredfromthelastparagraph?A．It’simportantthatwedevelopasocialnetworkwhenyoung.B．Tostayhealthy,oneshouldhaveapropersocialnetwork.C．Gettingadivorcemeansriskingareducedlifespan.D．Weshouldshareoursocialnetworkswitheachother.22．（8分）HaveyoueverbeentoFrancebefore?Itisnotonlyacountryofgreatfood,fashionandart.It’salsohometothemostinfluentialpaintersintheworld.EdouardManetHewasoneofthefirstartiststopaintmodernlife.Hebegantopaintinhisownstyle,butstillusedsomeofCouture’stechniqueslikethicklinesanddarkcolors.HewasgreatlyinfluencedbyClaudeMonetandBertheMorisot,whichcanbeseeninhisuseoflightshades.MostofhispaintingshadscenesofdailylifeonthestreetsofParis.HisworksincludeOlympiaandTheAbsintheDrinker.CamillePissarroInhisearlyyears,Pissarropaintedscenesofariverorapathfrommemory.AftermeetingClaudeMonetandPaulCezanne,whopaintedinamorerealisticstyle,hechangedhiscoursetoImpressionism.Duringhiscareer,heexperimentedwithvariousstyles,andfinallyformedhisownone.HisworksincludeOldMarketatRouenandSunsetatSt.Charles.VincentvanGoghHehadahugeinfluenceonartinthe20thcentury.Hisearlyworksweremostpaintedinsombertones.However,influencedbyMonet,Pissarro,andBernard,headoptedbrightercolorsinhisworks,andstartedcreatinghisowntechniques.Althoughhehadproducedmorethan2,000worksofart,theartistsoldonlyonepaintingduringhislifetime—RedVineyardatArles.HisworksincludeThePotatoEaters,StarryNightandBedroominArles.ClaudeMonetHewasthefounderoftheImpressionistmovementandcompletelychangedtheFrenchpaintinginthe19thcentury.Althoughhefirststartedbysellingcharcoalcaricatures（木炭讽刺画）inParis,hesoonstartedpaintingwithoilaftermeetingEugeneBoudin,whotaughthimtouseoilpaintsandalsoencouragedhimtopaintoutdoors.Andthenhepaintedwithhisownstyle.HisworksincludeImpression,SunriseandTheWaterLiles.1、WhatcanwelearnaboutEdouardManet’spaintings?A．Theyreflectedthechangesoflife.B．Theyweremainlyaboutdailylife.C．Theywereallpaintedinbrightcolors.D．TheywerepaintedinMorisot’sstyle.2、WhichpaintingwassoldbyVincentvanGoghinperson?A．ThePotatoEaters.B．BedroominArles.C．RedVineyardatArles.D．StarryNight.3、What’sthecommonpointofthefourpaintersfromthetext?A．Allofthemweregivenmanyawardsintheirlife.B．Allofthemweretaughtbysomefamouspainters.C．Allofthemhadagoodtasteindeliciousfood.D．Allofthemhadtheiruniquestylesinpainting.23．（8分）Newresearchinmonkeysmayprovideaclueabouthowthebrainmanagesvastamountsofinformationandrememberswhatitneeds.Theresearchersfoundthatwhenmonkeysweretaughttoremembercomputerclipartpictures,theirbrainsreducedthelevelofdetailbysortingthepicturesintocategoriesforrecall,suchasimagesthatcontained"people,""buildings,""flowers,"and"animals."Thecategorizingcellswerefoundinthehippocampus,anareaofthebrainthatprocessessensoryinformationintomemory.Intheexperimenteachmonkeywasshownoneclipartpicture,andafteradelayofoneto30seconds,pickedtheoriginaloutoftwotosixdifferentimagestogetajuicereward.Byrecordingcellactivityduringhundredsofthesetrialsinwhichthepictureswerealldifferent,theresearchersnoticedthatcertaincellsweremoreactivewhenthepicturescontainedsimilarfeatures,suchasimagesofpeople–butnototherobjects.Theyfoundthatdifferentcellscodedimagesthatfitdifferentcategories.Thecategorycellsgroupedimagesbasedoncommonfeatures–astrategytoimprovememory.Forexample,thesamecellrespondedtobothtulipsanddaisiesbecausetheyarebothflowers."“Whilesuchcategorizationisahighlyefficientmemoryprocess,itmayalsohaveadownside,”saidDeadwylerPh.D．,“whenthetrialsincludedmorethanonepicturewithpeopleinit,insteadofdifferentimages,themonkeysoftenconfusedtheimagewithapictureofotherpeople."Solearningmoreabouthowthebrainrememberscouldhavefar-reachingbenefits."Ifwecanunderstandinadvancehowthebrainworkswhendecisionsaremade,wecanpredictwhenthebrainwillmakeamistake,andcorrectit,"saidTimPons,Ph.D．,"Thisfindingabouthowlargeamountsofinformationareprocessedbythebrainwillhelpustoultimatelyachievethatgoal."1、Thepurposeoftheexperimentsonmonkeysistofindout_________.A．howthebrainprocessesamountsofinformationintomemoryB．theareaofthebrainthatprocessessensoryinformationintomemoryC．howthemonkeysrespondtodifferentthingsD．whatisthemonkeysmostlikelytoremember2、Theresearchindicatesnumerousinformationcanberememberedmoreeasilyby________.A．rememberingthedetailsB．separatingitintocategoriesC．showingalotofpicturesD．rememberingallfeatures3、Accordingtotheresearch,whichofthefollowingimagesmayconfusethemonkeys?A．Books,toysandcarsB．Plants,animalsandpeopleC．Tulips,daisiesandrosesD．People,buildingsandflowers4、Whatcanwelearnfromthelastparagraph?A．FurtherstudyonhowthebrainremembershasmorebenefitsB．CategorizationisthebestwaytoimprovememoryC．WecanpredictwhenthebrainwillmakeamistakeD．Howthebrainremembershasbeenfoundout24．（8分）Statistically,airtravelisbyfarthesafestwaytotravelandyoucanmakeflyingevensafer,justbyfollowingthesesimplerules．Asyourchancesofbeinginvolvedinanairaccidentarepracticallynil（零）,manyoftheserulesconcernwhatyoushouldandshouldn’tdotomakeyourjourneysaferwhenyouareintheair.●Flyonnon-stoproutesMostaccidentsoccurduringthetakeoff,climb,descentandlandingperiodofaflight,soflyingnon-stopreducesyourexposuretothesecomplicatedprocedures.●ChooselargeraircraftAlthoughsmallaircraftshaveverygoodsafetyrecords,thosewithmorethan30passengerseatsaredesignedtocomply（遵守）withmuchstricterregulationsandaretestedmoreregularlytomakesuretheystillcomply.Also,intheunlikelyeventofaseriousaccident,largeraircraftsprovideabetteropportunityforpassengersurvival.●Payattentiontothepre-flightsafetybriefing（简报）Theinformationmayseemtoberepeated,butit'sworthlisteningtotheflightattendants.Andevenifyouhaveflownbefore,itdoesn'tmeanyouknoweverythingabouttheaircraftyou'reon,suchasthelocationoftheclosestemergencyexit.●StorethingssafelyNeverputveryheavyarticlesintheoverheadstoragebins.Theymayfalloutwhensomeoneopensthebinandcauseinjury.Also,thebinmaynotbeabletoholdheavierobjectsduringtheviolentmovementsofaircausedbythewind.●KeepyourseatbeltfastenedwhileyouareseatedCabincrewalwaystellyouthis,butit'simportant.Youcouldbeseriouslyinjurediftheplanehitstheviolentmovementofairunexpectedly.Alwaysfastenyourseatbeltifyouaretoldto.Thegeneralruleofflyingisthis:Ifyouaretoldtodosomething,doitfirstandaskquestionslater.●LettheflightattendantpouryourhotdrinksFlightattendantsaretrainedtohandlehotdrinkslikecoffeeorteainacrowdedaisleonamovingaircraft,soallowthemtopourthedrinkandhandittoyou.Neverasktotakeacoffeepotfromoneofthem.1、Whatisthegeneralreasonfortheseairsafetyrules?A．Whattodointheeventofacrash.B．Howtoavoidsuddenchange.C．Howtoimprovesafetywhileyouareflying.D．Howtoavoidinjury.2、Theunderlinedphrase"Thegeneralrule"inthefifthrefersto.A．anythingtheflightstafftellyoutodoB．generalsafetyadviceC．walkingaroundtheplaneD．pouringhotdrinks3、WhichofthefollowingisNOTtrue?A．largerplaneshavemoresafetychecksandaresaferinanaccident.B．Take-offsaresaferonnon-stopflightsthanlanding.C．Everyaircraftisdifferent,sothesafetyproceduresmaybedifferent.D．Seatbeltsshouldbeworntoprotectagainstsuddenchange.4、Thebesttitleshouldbe.A．ThesafestwaytotravelB．AirsafetytipsC．Non-stopRoutesD．Howtotakeaplane25．（10分）Nearlyeveryweek,wehearnewsaboutthelatestsuccessesandfailuresindriverlessvehicles.Butwehearlittleabouthowotherindustriesaredevelopingthissamekindoftechnology.Oneindustryheavilyinvolvedinresearchinganddevelopingartificialintelligence,orAI,isagriculture.Companiesareexperimentingwithhigh-techtoolsthatcanhelpfarmerssavetimeandmoney,whilereducingenvironment-harmingchemicals.OneofthecompaniesisecoRobotixofSwitzerLand.ItcreatedarobotequippedwithAIandcamerastoidentifyallplantsonafarm.Therobothasfourwheelstocarryitthroughthefieldsinsearchofweeds.Computer-controlledarmsthenlowerandspraytheweedswithsmallamountsofherbicide(除草剂).Companyofficialssaytherobotcanfullyoperateonitsownforupto12hoursadaywhilebeingpoweredbythesun.Itusesthesamekindofsensorandpositioningtechnologyusedtoguidedriverlessvehicles.Afarmercanalsocontroltheequipmentthroughasmart-phone.Theco-founderofecoRobotix,AurelienDemaurex,saysthefarmrobotcankillweedswith20times1essherbicidethantraditionalmethods.Thisisbecausethesystemusesexactlytherightamountofchemicalintheexactplacerequiredtokilltheweeds.Currently,farmersspreadweedkillersovermassiveareastodestroyunwantedplants.AnothercompanydevelopingfarmroboticsisCalifornia-basedBlueRiverTechnology.Thecompanyhasasystemcalled"See&Spray",whichitclaimswastheworld'sfirstsmartsprayer.Thesystem-whichconnectstothebackofatractor-isalsoequippedwithAItoidentifyandchemicallykillonlytheweeds.Itcanalsospraychemicalsonwantedplantstohelpthemgrow.BenChostner,vice-presidentofbusinessdevelopmentforBlueRiverTechnology,explainsinacompanyvideothatSee&Spraytechnologyusesthesamedeeplearningmethodsusedinfacialrecognition."Thefirsttimethemachinesawapigweed,itdidn'tknowwhatkindofplantitwas.Butwetaughtit-bygivingittensofthousandsofexamplesofthatpigweed-andnowit'sanexpertinpigweed."1、HowwillAIbenefitagriculture?A．Itwillfundagricultureresearch.B．Itcontributestolow-costfarming.C．Itcanavoidharmfulchemicals.D．Itfreesallfarmersfromfieldwork.2、Whatdotheproductsofthetwocompanieshaveincommon?A．Theyuserecognitiontechnology.B．Theyarepoweredbysolarenergy.C．Theyareconnectedwithsmartphones.D．Theycanhelpwantedplantsgrowrapidly.3、WhatdoBenChostner'swordssuggestabouttherobot?A．Itisenvironmentally-friendly.B．Itisgoodatself-improving.C．Ithasthelearningability.D．Itcantrackvariousplants.4、Whatismainlytalkedaboutinthetext？A．Theexperimentinfarmingrobots.B．Newtrendinartificialintelligence.C．ModernSee&Spraytechnology.D．Artificialintelligenceinagriculture.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）AfewyearsagoIwasworkingparttimeatalocalicecreamshop.While1anelderlywomanahotfudgesundae(圣代冰淇淋)atthedrive-throughwindow,Icouldn’thelp2hercar,becauseIwasjustinchesfromherface.I3thatshehadabasketofwhatappearedtobepurpletomatoes.AsIgaveherthesundae,Isaid,“Thosetomatoeslookdelicious!What4arethey?”Shesmiledso5thatIthoughtshewasabouttolaugh,butinsteadshereplied.“Here,havesome!”WithinsecondsIhada6ofpurpletomatoes.“Oh,no,you7givemeany!”Isaid.Thosetomatoeslookedexpensive.“Here,havemore,”she8,andIhadsixoftheprettiesttomatoesIhad9seen.Iweaklytriedtosay,“Really,youdidn’thavetogivemeany,10Iappreciateit.Thewomansmiledagainand11,“Theybelongtoararetype.Sotheyaren’tliketheone,yougetinthegrocerystore.Ihopeyouenjoythem.”Isaid“Thankyou”again,andshe12off.Abouttwoweekslater,my13attheicecreamstoresentmeamessage:“Iwanttoletyouknowthatyourgardenerdroppedoffaboxof14foryou.Pleasecomeandgetthem.”15,Itexted,“Mygardener?”Thatnightmybossshowedmethe16.Iopeneditandinsideweretomatoes,cucumbers,andgreenbeans.Iwas17,feelinggreatlysurprised.Whywasthiswomanbeingso18?Ineversawheragain,buttothisdayheractofkindnessinspiresmeto19mygardenplantswithanyonewholikesorneedsthem.20,allIexpectisjusta“Thankyou”.Betteryet,payitforwardandbesomeoneelse’ssecretgardener.1、A．leavingB．handingC．awardingD．buying2、A．askingforB．thinkingofC．waitingforD．lookinginto3、A．pretendedB．noticedC．expectedD．understood4、A．colorB．kindC．shapeD．number5、A．widelyB．slightlyC．weaklyD．shyly6、A．dozenB．basketC．handfulD．variety7、A．needn’tB．can’tC．mustn’tD．won’t8、A．promisedB．agreedC．commentedD．insisted9、A．evenB．alsoC．yetD．ever10、A．ifB．butC．forD．so11、A．leftB．explainedC．pausedD．suggested12、A．gotB．fellC．spedD．walked13、A．friendB．customerC．assistantD．boss14、A．grainsB．vegetablesC．fruitsD．flowers15、A．ExcitedB．PuzzledC．UpsetD．Angry16、A．storeB．gardenC．giftD．box17、A．angryB．happyC．nervousD．sorry18、A．generousB．humorousC．seriousD．outgoing19、A．growB．manageC．shareD．sell20、A．InreturnB．InadvanceC．InadditionD．Inparticular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）Forsomepeople,walkingorrunningoutdoorsisagreatway1．(exercise).Whatmaynotbesogreatisseeingtrashallovertheground.Well,somepeoplearedoingsomethingaboutit.Theyareplogging!“Plogging”2．(begin)inSweden.ThenamecombinestheSwedishword“plocka”,3．meanstopickup,andtheword“jogging”meaningtorunslowly.ASwedishman4．(name)ErikAhlström,startedthemovementin2016.OntheWorldEnvironmentDaywebsite,hesaysthathemovedtoStockholmafromasmallcommunityin5．(north)Sweden.Eachdayhewouldridehisbiketowork.Hesayshewasconcernedabouttheamountoftrashandlitterhesaweachday6．hiswaytowork.So,hetookmattersintohisownhands.Hebeganpickingupthetrash.Andthatishowploggingwasborn!Plogging,bythatterm,mayhave7．(office)beguninSweden.8．manypeoplewhoexerciseoutdoorshavebeendoingthisforyears.TakeJeffHorowitz,forexample.Heisapersonal9．(train)inWashington,D．C．Hesaysthathewouldoftenpickuptrash10．(run)outside.Heeventurneditintoagame;hewouldtrytopickupthetrashwithoutstopping.第四部分写作（共两节）第一节短文改错（满分10分）28．（10分）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作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除和修改。增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。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、每处错误及其修改仅限一词；2、只允许修改10处，多者（从第11处起）不计分。LastSaturday,ourclasspaidthevisittotheWelfareCentreforchildreninourcity、Onourarrival,wedonatedsomegifttothekids,whichmadethemverypleased、Thenwedidwhatwecouldhelpthem、Somesweptandtidiedtheirrooms、Someplaygameswiththem、Andotherstoldinterestingstoriestothem、Thedaypassedquicklyafterweknewit、Honestlyspeaking,thoughtired,theyweremuchhappierthaneverthatday、Thereasonisthatwhenwehelpwithothers,wealsogetsomethingmoreimportantly、Therefore,showyourloveandcare,oroursocietywillbemorebeautyandmoreharmonious、第二节书面表达（满分25分）29．（25分）假如你是李华，你的美国笔友Chris下学期来泉州学习，拟租在你所住的小区，向你了解小区的居住环境和邻里关系，请给他写封回信。内容包括：1.环境优美；2.邻里和谐；3.乐意帮忙。注意：1.词数100左右；2.可以适当增加细节，以使行文连贯；3.结束语已为你写好。DearChis，_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Lookingforwardtoyourcoming.Yourssincerely,LiHua

参考答案第一部分（共20小题，每小题1.5分，满分30分）1、A2、B3、D4、B5、D6、C7、A8、A9、D10、D11、C12、B13、B14、B15、B16、C17、B18、B19、A20、B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、1、D2、C3、A4、B22、1、B2、C3、D23、1、A2、B3、C4、A24、Spaceiswhereourfutureis—tripstotheMoon,Marsandbeyond.Mostpeoplewouldthinkthatasidefromcomets(彗星)andstars,thereislittleelseoutthere.But,sinceourspacejourneystartedwehaveleftsomuchtrash（垃圾）therethatscientistsarenowconcernedthatifwedon'tcleanitup,wemayallbeinmortal（致命的）danger.Thefirstpieceofspacejunkwascreatedin1964,whentheAmericansatelliteVanguardIstoppedoperatingandlostitsconnectionwiththegroundcenter.However,sinceitkeptorbitingaroundtheEarthwithoutanyconsequences,scientistsbecameincreasinglycomfortableabandoning（抛弃）thingsthatnolongerservedanyusefulpurposeinspace.Itisestimated（估计）thattherearenowover500,000piecesofman-madetrashorbitingtheEarthatspeedsofupto17,500milesperhour.Thejunkvariesfrom