2025屆長春市第八十七中學(xué)高三一診考試英語試卷含解析

2025屆長春市第八十七中學(xué)高三一診考試英語試卷注意事項(xiàng):1．答題前，考生先將自己的姓名、準(zhǔn)考證號(hào)碼填寫清楚，將條形碼準(zhǔn)確粘貼在條形碼區(qū)域內(nèi)。2．答題時(shí)請按要求用筆。3．請按照題號(hào)順序在答題卡各題目的答題區(qū)域內(nèi)作答，超出答題區(qū)域書寫的答案無效；在草稿紙、試卷上答題無效。4．作圖可先使用鉛筆畫出，確定后必須用黑色字跡的簽字筆描黑。5．保持卡面清潔，不要折暴、不要弄破、弄皺，不準(zhǔn)使用涂改液、修正帶、刮紙刀。第一部分（共20小題，每小題1.5分，滿分30分）1．Allofasudden,thethiefwalkingbehindayoungandprettylady_______herpurse,______intothecrowd.A．seizing;rushed B．seized;rushed C．seizing;rushing D．seized;rushing2．—Iamsearchingoneonlineshoppingsiteafteranotherforacomputer.—So__________IbeforeIdecidedtobuyanewcamera.A．had B．have C．a(chǎn)m D．would3．Hischildrenwerehispride,andbeingadevotedfatherbecameatop______inhislife.A．capacity B．a(chǎn)nxiety C．priority D．opportunity4．Wehavenoideawhatairwewillbebreathinginthefutureifweanythingtostophazyweather.A．hadn’tdoneB．didn’tdoC．haven’tdoneD．don’tdo5．—TherearenorelativearticlesontheInternet.Whatshallwedo?—MyGod！Therearealwaysnotanyusefularticleswhenyouwant.A．one B．it C．that D．a(chǎn)ny6．Althoughtheusedcarseemsingood______,itcannotrunfast.A．state B．situationC．condition D．occasion7．TheInternationalMonetaryFundhasreceivedbothcriticismandforitseffortstopromotefinancialstability,preventcrises,facilitatetrade,andreducepoverty.A．worship B．creditC．a(chǎn)rgument D．privilege8．Hisdreamwas________aphotostudiothatcouldtransportpeoplebacktothepast.A．openingB．openedC．toopenD．open9．AllofushavethedesiretovisitthethreemaintemplesinAthens,especially______thatcontainsagoldandivorystatueofAthena.A．theone B．one C．theones D．those10．____regulartraininginnursing,shecouldhardlycopewiththeworkatfirst.A．NotreceivedB．SincereceivingC．HavingnotreceivedD．Nothavingreceived11．_______travellingexpensesrisingalot,wehadtochangeallourplansforthetour．A．As B．By C．Since D．With12．Duetoaterriblefluthat________on,manystudentsdon’tshowuptoschooltoday.A．goes B．wasgoing C．isgoing D．hasgone13．—Mum,doyoumindifIinvitesomefriendstomybirthdayparty?—______.Itwillbemoreinteresting.A．Bynomeans B．Yes,ofcourseC．Don’tworry D．Nodoubt.14．Itissodifficultaquestion_______noneofthekidscouldworkitout.A．a(chǎn)s B．that C．which D．X15．Alongwiththeemailwasmybrother’spromise______Icamefirstinthecompetition,hewouldbuymeanMP4.A．what B．that C．thatif D．whether16．—YououghttohavemadeanapologytoTomyesterdayevening．—Yes,IknowI____．A．oughttohave B．haveto C．should D．musthave17．—Irene,doyoureallywanttogoout?—Itmayrain.___________,Iwillgoout;Idon’tmindtherain.A．Anyhow B．OtherwiseC．Somehow D．Therefore18．I’msorryyouhavebeenwaitingsolong,butitwillstillbesometime________youcangetyourpassport.A．since B．tillC．a(chǎn)fter D．before19．—Doyoureallyplantodropoutofthefootballteam?—________It’stimeformetoconcentrateonmystudy.A．I’mjustkidding. B．Definitelynot.C．Imeanit D．Whatapity!20．Thepetrolinthecar_____onourwaytothebeach,sowehadtowalkthere.A．gaveup B．gaveoff C．gavein D．gaveout第二部分閱讀理解（滿分40分）閱讀下列短文，從每題所給的A、B、C、D四個(gè)選項(xiàng)中，選出最佳選項(xiàng)。21．（6分）Istoodinanoisygroupofsixthgradestudents,waitingfortheanswertoourburningquestion:WhattypeofcrazytiewouldMr.Millerbewearingtoday?OurteacherwalkedaroundthecornerwithaGREENELEPHANTTIEthatmatchedhislargeelephantcoffeecup!Oh,thesatisfactioninouryounghearts—agreenelephanttie!Withhisglassesatthetipofhisnose,hegreeteduscheerfully,“Goodmorning,folks!”Hewasstrangeanduniqueandhebrightenedeverydayforus.HewasthemostdynamicteacherIhadevermet.Ilovedmusic,soIrememberhowexcitedIwaswhenhesaidhewasgoingtogiveusmusiclessons.Butwhenheturnedonthemusic,myclassmatesandIslowlyturnedourheadstowardthesoundof…FeterPaulandMarysinging“IfIHadaHammer”.Snickers(竊笑)filledtheroom.Ifitwasn’traporhiphop,wedidn’trecognizeit.Whatwerethesepeoplesingingabout?Myclassmateswerenotintothisatall.Butforme,agirlof12,itwasadiscovery.Anawakening.Twentyyearspassedandnowtherearefortylittleeyesstaringatmywildmusical-noteshirtsasIgreetthemwithajoyful,“Goodmorning,class!”IwonderifmystudentswaitandwonderwhatcrazymusicclothesIwillweareachday.Iglanceatmy2015TeacheroftheYearAward,whichIreceivedforbeingadynamicteacher.AndIsmiletomyself,wonderingwhichchildinfrontofmewillcarrythison－asI’vecarriedonthelegacy(遺產(chǎn))ofMr.Miller.Oneteacher,whodaredtobedifferentandopennewworldstokidslikeme,threwthesignificantstoneintothepondofmylife.Ipraytheripples(漣漪)neverend.1、WhatcanweinferaboutMr.Miller?A．Hewasananimalprotector. B．Hedidn’ttakehisworkseriously.C．Heoftendressedupinanunusualway. D．Heoftenaskedhisstudentsburningquestions.2、Howdidtheauthorreacttothesong“IfIHadaHammer”?A．Puzzled. B．Disappointed.C．Uninterested. D．Excited.3、Whatdoestheunderlinedword“this”inthetextreferto?A．Akindheart. B．Thesmile.C．Agiftformusic. D．Theloveforteaching.4、Whatistheauthor’spurposeinwritingthistext?A．Toproveherloveformusic.B．Toshowateacher’seffectonher.C．Tocallonstudentstotakeupteaching.D．Toshareherexperienceinmusiclearning.22．（8分）Earlierthismonth,tworockclimbersachievedwhatmanythoughtimpossible:Theyclimbedupthe3,000-foot-highDawnWallinYosemiteNationalParkwithoutspecializedequipment.Climbingwithoutthisequipmentiscalled“free-climbing.”Untilnow,noonehadfree-climbedtothetopoftherockface,whichisapartofthemountainEICapitan.EICapitan,whichmeans“thecaptain”or“thechief”inSpanish,hasalwayspresentedachallengetoclimbers.ButtheDawnWall,onthemountain’ssoutheastface,isaparticularlydifficultroutetothesummit(頂峰).Itisarockformationthatisbothsteepandrelativelysmooth.Thismakesfree-climbingtherockfaceseemalmostimpossible.Aboutsevenyearsago,professionalclimberTommyCaldwellspottedapossiblerouteupthewall.Ittookyearsofplanningandpreparation,butthismonth,Caldwell,36,andhisfriendKevinJorgeson,30,finallymaketheclimb.Freeclimbersdouseropesandotherbasicsafetyequipmenttocatchthemiftheyfall—andCaldwellandJorgesonfelloften.Beforestartingtheirclimb,theybrokedowntheirrouteinto32sections.Eachsectionwasbasedonaropelengthcalleda“pitch.”Theropewassecuredintotherockfacetocatchtheclimbersiftheyfell.CaldwellandJorgeson’sgoalwastoclimbtheDawnWallwithoutreturningtotheground.Iftheyfell,theyhadtostartthatpitchalloveragain.ThetwomenstartedclimbingonDecember27.Theysleptinhangingtents,andateamoffriendsbroughtthemfoodeachday.Themenhadspentyearsrehearsing(排練)themovementsitwouldtaketogetthrougheachpitch.Theymadeitthroughthefisthalfoftheclimbrelativelyeasily.Buthalfwayup,Jorgesonranintotrouble.Inonedifficultspot,hefelleachtimeheattemptedtoclimb.After10daysoftrying,Jorgesonfinallymadeittothenextpitch.Gettingthroughthattroublesomepitchgavebothclimbersrenewedenergy.Theyfinishedtherestoftheclimbfivedayslater,onJanuary14.1、WhatdoesParagraph2mainlyexplain?A．WhytheDawnWallisahardchallenge.B．WhypeoplepreferclimbingElCapitan.C．Howtofree-climbtheDawnWall.D．HowElCapitangotitsname.2、ToclimbYosemite’sDawnWall,CaldwellandJorgeson________.A．receivedoneyear’strainingB．chosethenearestrouteC．madethoughtfulpreparationsD．usedspecialequipment3、Whatcanwelearnaboutthisworld’stoughestclimb?A．Itincludes32differentroutes.B．Itisalsotheworld’shighestclimb.C．ItwasoncecompletedbyCaldwell7yearsago.D．Ittookthetwoclimbers19daystogettothetop.4、WhichofthefollowingwordscanbestdescribeJorgeson?A．Proudbutpatient.B．Cautiousandfriendly.C．Braveanddetermined.D．Imaginativebuthalf-hearted.23．（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（簡報(bào)）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．a(chǎn)nythingtheflightstafftellyoutodoB．generalsafetyadviceC．walkingaroundtheplaneD．pouringhotdrinks3、WhichofthefollowingisNOTtrue?A．largerplaneshavemoresafetychecksandaresaferinanaccident.B．Take-offsaresaferonnon-stopflightsthanlanding.C．Everyaircraftisdifferent,sothesafetyproceduresmaybedifferent.D．Seatbeltsshouldbeworntoprotectagainstsuddenchange.4、Thebesttitleshouldbe.A．ThesafestwaytotravelB．AirsafetytipsC．Non-stopRoutesD．Howtotakeaplane24．（8分）Ifitweren'tforthementor（導(dǎo)師），RebeccaCruziscertainthatshewouldn'thavegottenherbachelor'sdegree．Ms．Cruzwentthroughatroublingtimeduringhersecondyearincommunitycollege．Shedidn'tfeelmuchsupportathome．Strugglingontheedgeofstoppinghereducation，Cruzturnedtohermentor，AlexLopez．"Heputmeintherightdirection，"Cruzrecalls．GiselaBusheyisanotherwomanwhounderstandstheimportanceofmentors，andshehopestofindanAlexforeveryRebecca．SoshedesignedCriticalBridge，whichprovidesthemwithmentorship．AndinOctober，CriticalBridgewasnamedarecipientofthe﹩50，000EncorePrize，whichisawardedbyEncore．org，apartnerorganizationthataimstousethetalentsofthoseaged50orolder．Aspartoftheprize，Encore．orgwillprovidementorsforCriticalBridge．ThementorswillworkwithyouthsthroughouttheirparticipationinthetwoprogramsconnectedtoCriticalBridge．Morethan10，000peopleintheUnitedStatesareretiringeveryday，accordingtoPhyllisMoen，asociologyprofessor．ManyoftheseAmericanshaveexpressedadesiretogivebacktotheircommunities．"Theywanttodosomethingmeaningful．Andthere'snothingmoremeaningfulthanmentoringacrossgenerations，"ProfessorMoensays．DimaKhouryhasmentoredyoungpeoplethroughouthercareer．Sheseesmentorshipasapersonalrelationship．"Takethetimetogettoknoweachother，"Ms．Khourysays．"Ifyoutakethetimetobuildtrustatthebeginning，itwillbemucheasiertobuildahealthyrelationshipafterthat，andmorebeneficial．"Speakingfromexperience，shesaysmentorsmightnotalwayshavetheanswers，butbeingalistenerisjustasimportant．"Ithinkwhathelpsissomethingaskingtherightquestionandlettingthemthinkaboutit，"shesays．"Itbenefitscriticalthinking．"Cruz，nowaSanFranciscoStategraduate，hasbecomeamentortoo．"Sometimesweareinaconditionwherewedon'thavepeopletogoto；youmightnotmakeitoutfromthatsamecyclewithoutthehelpofanyhumanguide，"shesays．Butbyprovidingmentorshipandresources，Cruzhopesthatifsuchatimecomes，studentswill"makethedecisiontopushforwardasopposedtogivingup．"1、WhatcanbeknownaboutRebeccaCruz？A．Shewasstronglysupportedbyherfamily．B．Shefailedtogetherbachelor'sdegree．C．Shegaveuphercollegeeducation．D．Shewashelpedbyhermentor．2、WhatdoweknowaboutCriticalBridge？A．Itoffersstudentsmentorship．B．Itgivesmentorsprizesyearly．C．ItwasfoundedbyAlexLopez．D．Itisatalentsearchorganization．3、WhatdoesDimaKhourythinkofmentorship？A．Itrequiresrichexperience．B．Ittakesalongtimetobuild．C．Itisthebestjobchanceforretiredpeople．D．Itinvolvesagoodunderstandingbetweenpeople．4、WhatisRebeccaCruz'sfuturewish？A．Toprovidestudentswithsupport．B．Toguidestudentsthroughtheirstudy．C．Tobuildahealthyrelationshipwithothers．D．Togetadvancedtraininginmentorshipskills．25．（10分）Whilesmartphonesstandaccusedofavarietyofcrimes,thesepocketcomputerscancertainlybeaforceforgood.Yourphoneisalwayswithyou,makingittheperfectdevicetopushyouintoamorebeneficialwayofliving.Herearesomeofthebestappsthatcanhelp.HabiticaHabiticaturnsthegoalofforminggoodhabitsintoagame,withitsowncharactersandscoring.It’salotoffun，andtheappalsoletsyoubuildhabitswithfriendsandfamily.Inadditiontoregularrepeatinghabits,youcanaddamoregeneralto-dolist,andtherewardsyougetcanbecustomizedtoo—youcouldtreatyourselftoamealoutoranextrahourofgames.SmokeFreeIfyou’vegotaspecifichabitinmind，thenyou’llusuallyfindspecificappstohelp,likeSmokeFree.Ifyou’redeterminedtogiveupsmoking,thenthisisoneofthemostcomprehensiveappsforgivingyouthatextrapushyouneedtomakeapermanentchange.Theappoffersahostofusefulfeaturesforpeoplewantingtogosmoke-free：Theabilitytoseeyourprogressovertime，chartsshowinghowyourhealthisimproving，day-by-dayencouragement，andsomeadviceontechniquesforgivingupsmoking.MyFitnessPalYoucanfindatonofhealthandfitnessappsforyourphone,butMyFitnessPalstandsoutnotjustbecauseitiseasytouse,butbecauseitmakespracticalsuggestionsforyou.Itcantakeinahostofdata,fromthecalories(卡路里)you’retakingintothenumberofswimsyou’redoingperweek,andofferreportsoncalorieconsumptionandmacronutrient(大量營養(yǎng)素）breakdown.1、WhatcanHabiticahelpyoutodo?A．Winatoughgame. B．Startalastingfriendship.C．Findafancyrestaurant. D．Developapleasanthabit.2、WhichofthefollowingcanSmokeFreeprovide?A．Thefreedomtosmoke. B．Theabilitytomakeprogress.C．Adviceonhowtoquitsmoking. D．Chartsaboutyourexcellenthealth.3、Whatcanwelearnaboutthethreeappsmentionedinthetext?A．They’recheap. B．They’repractical.C．They’refree. D．They’reinteresting.第三部分語言知識(shí)運(yùn)用（共兩節(jié)）第一節(jié)（每小題1.5分，滿分30分）閱讀下面短文，從短文后各題所給的A、B、C和D四個(gè)選項(xiàng)中，選出可以填入空白處的最佳選項(xiàng)．26．（30分）完形填空閱讀下面短文，從短文后各題所給的四個(gè)選項(xiàng)(A、B、C和D)中，選出可以填入空白處的最佳選項(xiàng)。WhenPrimeMinisterWinstonChurchillwasyoung,heattendedapublicschoolcalledHarrow.Hewasnota1student.Asamatteroffact,he’dhavebeenthrownoutoftheschool,ifhehadn’tbeenthesonofafamousleader.However,he2hisstudyatHarrow,wentontotheuniversity,andthenhadasuccessful3inthearmy.HelaterwaselectedPrimeMinisterandbroughtgreathonortoBritain.TowardtheendofhisperiodasPrimeMinister,hewas________toaddresstheyoungboysatHarrow,hisold4Hegavethisshortbutmovingspeech:“Youngmen,nevergiveup.Nevergiveup!Nevergiveup!5!”Manypeople________AbrahamLincolntobethegreatestpresidentofalltime.Yetitshouldbe6howmanyfailuresanddefeats7hisearlylife.Hegrewuponasmallfarm.Inthoseearlyyears,hisfamily8hadapennyandhehadonlyoneyearof________education.In1832,helosthisjob.In1833he9inbusiness.In1835,thewomanheloveddied.In1843hewas10whenhetriedtoentertheCongress(國會(huì)).In1856,hewasdefeatedinthe________forvicepresident.Inspiteofthese,hedidn’t11,andhewaselectedPresidentoftheUSin1860.Personalhistory,education,situation—noneofthesecan12astrongspirit.Someoftheworld’sgreatestpeoplehave________hugeproblemsanddifficultiesatsometimeintheirlives,butthey’vegoneontodo13deeds.BuryhiminthesnowsofValleyForge,andyouhaveaGeorgeWashington.Makeamusicalgenius________tohear,andyouhaveaLudwigvanBeethoven.Callhim________tolearn,andwritehimoffasstupid,andyouhaveanAlbertEinstein.1、A．clever B．lazy C．famous D．good2、A．a(chǎn)bandoned B．supported C．completed D．a(chǎn)ppreciated3、A．fight B．career C．speech D．movement4、A．invited B．ordered C．forced D．informed5、A．family B．school C．centre D．hometown6、A．Always B．Sometimes C．Once D．Never7、A．ignore B．want C．sense D．consider8、A．forgiven B．forgotten C．remembered D．blamed9、A．respected B．served C．marked D．spared10、A．usually B．hardly C．fairly D．merely11、A．regular B．special C．extra D．royal12、A．a(chǎn)ppeared B．opened C．succeeded D．failed13、A．lost B．defeated C．valued D．cared14、A．exchange B．election C．entrance D．benefit15、A．makeup B．a(chǎn)greewith C．takeover D．giveup16、A．holdback B．dependon C．keepup D．a(chǎn)pplyfor17、A．a(chǎn)nswered B．controlled C．met D．a(chǎn)voided18、A．crazy B．small C．new D．great19、A．unable B．hesitate C．hopeful D．likely20、A．slow B．wise C．quick D．Strong第二節(jié)（每小題1.5分，滿分15分）閱讀下面材料，在空白處填入1個(gè)適當(dāng)?shù)膯卧~或括號(hào)內(nèi)單詞的正確形式。27．（15分）AsingingcontestofChinesesongsforoverseasChinese1．(hold)onJune15th,2019inHouston,thefourthlargestcityintheUnitedStates.Thecontestispartofthe“WaterCubeCup”ChineseSongsSingingCompetition,whichis2．globalactivitytointroduceChinesecultureandtellChinesestoriestotheworld.3．(it)aimistostrengthenthelinkbetweenChinaandtheworldthroughChineseculture.InAugust,thetopthreewillgotoBejingforthefinal.第四部分寫作（共兩節(jié)）第一節(jié)短文改錯(cuò)（滿分10分）28．（10分）假定英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文。文中共有10處語言錯(cuò)誤，每句中最多有兩處。每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。增加：在缺詞處加一個(gè)漏字符號(hào)（∧），并在其下面寫出該加的詞。刪除：把多余的詞用斜線（＼）劃掉。修改：在錯(cuò)的詞下劃一橫線，并在該詞下面寫出修改后的詞。注意：1、每處錯(cuò)誤及其修改均限一詞;2、只允許修改10處，多者（從第11處起）不計(jì)分。Asthesayinggoes,timeismoney、Butinmyopinion,timeisevenpreciousthanmoney、Why?Becausewhenmoneyisspent,westillhaveachancetoearnthemback、Butwhentimeiswasting,wecannevergetitback、Thereissomedoubtthattimeisverylimited,andevenaminuteisofgreatvaluable、Weshouldmakefulluseoftimetodothatshouldbedone、It’sthepitythatalotofpeoplestilldidn’tappreciatethevalueoftime、Theyarewastingtheirtimedoingnothingofuseful、Weshouldformthegoodhabitofraceagainsttimeandmakeadifferenceinourworld、第二節(jié)書面表達(dá)（滿分25分）29．（25分）假設(shè)你是李華，你的加拿大筆友John應(yīng)你的邀請，將于今年寒假來上海拜訪你。請你寫信歡迎他的到來，并告訴他你的一些安排。要點(diǎn)如下：1.和叔叔一起去機(jī)場接機(jī)；2.因?yàn)楦改笇⒊霾疃≡谑迨寮遥?.游覽上海。注意：1．詞數(shù)100左右（開頭和結(jié)尾已給出，但不計(jì)入總詞數(shù)）；2．可適當(dāng)增加細(xì)節(jié)，以使行文連貫。DearJohn,_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Yours,LiHua

參考答案第一部分（共20小題，每小題1.5分，滿分30分）1、D2、A3、C4、D5、A6、C7、B8、C9、A10、D11、D12、C13、A14、B15、C16、A17、A18、D19、C20、D第二部分閱讀理解（滿分40分）閱讀下列短文，從每題所給的A、B、C、D四個(gè)選項(xiàng)中，選出最佳選項(xiàng)。21、1、C2、D3、D4、B22、1、A2、C3、D4、C23、Spaceiswhereourfutureis—tripstotheMoon,Marsandbeyond.Mostpeoplewouldthinkthatasidefromcomets(彗星)andstars,thereislittleelseoutthere.But,sinceourspacejourneystartedwehaveleftsomuchtrash（垃圾）therethatscientistsarenowconcernedthatifwedon'tcleanitup,wemayallbeinmortal（致命的）danger.Thefirstpieceofspacejunkwascreatedin1964,whentheAmericansatelliteVanguardIstoppedoperatingandlostitsconnectionwiththegroundcenter.However,sinceitkeptorbitingaroundtheEarthwithoutanyconsequences,scientistsbecameincreasinglycomfortableabandoning（拋棄）thingsthatnolongerservedanyusefulpurposeinspace.Itisestimated（估計(jì)）thattherearenowover500,000piecesofman-madetrashorbitingtheEarthatspeedsofupto17,500milesperhour.Thejunkvariesfromtinypiecesofpaintchippedoffrocketstocameras,hugefueltanks,andevenodditemslikethemil