福建龙海市第二中学2025届高三一诊考试英语试卷含解析

福建龙海市第二中学2025届高三一诊考试英语试卷注意事项:1．答题前，考生先将自己的姓名、准考证号码填写清楚，将条形码准确粘贴在条形码区域内。2．答题时请按要求用笔。3．请按照题号顺序在答题卡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、试卷上答题无效。4．作图可先使用铅笔画出，确定后必须用黑色字迹的签字笔描黑。5．保持卡面清洁，不要折暴、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．-Lateagain！Where_____________？-Sorry，I________________intheheavytraffic，orIwouldhavebeenhereearlier.A．wereyou；havegotstuck B．haveyoubeen；havegotstuckC．wereyou；gotstuck D．haveyoubeen；gotstuck2．—Heiseagertotrysomethinghehasnevertriedbefore.—Oh,Isee.That’s_______he’sdifferentfromothers.A．whenB．whereC．howD．what3．Howdidyouliketheconcertlastnight?Ienjoyeditverymuch,butthedancers______abetterjob.A．couldhavedone B．couldn’thavedone C．coulddo D．haddone4．Don'tgiveuphalfway,andyouwillfindthesceneryismorebeautifulwhenyoureachthedestinationthanwhenyou_______.A．startoff B．havestartedoffC．startedoff D．willstartoff5．WhatdoesPM2.5mean？It'saprofessional_____________indicatingtheconditionofairpollution.A．number B．markC．term D．item6．youstarteatinginahealthierway,weightcontrolwillbecomemucheasier.A．Unless B．AlthoughC．Before D．Once7．Butforyourhelp,I__________theworkontime.IreallydonotknowhowIcanthankyouenough.A．wouldn'tfinish B．hadn'tfinishedC．wouldn'thavefinished D．won'thavefinished8．—Let’sgotothecinemathisSundaymorning.—I’dloveto，butI________asavolunteerinmycommunitythen.A．willwork B．haveworkedC．willbeworking D．wasworking9．—Shegotherfirstsciencefictionpublished.Itturnedouttobe________.—Whenwasthat?—Itwasin2009________shewasstillincollege.A．success;that B．asuccess;whenC．success;when D．asuccess;that10．Peoplecrowdinto________cherrytreesareblooming,appreciatingthefreshspringsight.A．what B．whenC．which D．where11．—Whatshallwedotonightthen?—,whateveryouwant.A．Helpyourself B．It’sadealC．Noproblem D．It’suptoyou12．______tosuccesscan’tdefeatus.Instead,theycanonlymakeusstronger.A．Attempts B．BarriersC．Contributions D．Access13．_____hishomeworkintime,hehadtostayuplateintothenight.A．Finishing B．Havingfinished C．Tofinish D．Tohavefinished14．I________mycellphonelastnight.Nowthebatteryisrunningout.A．couldhavecharged B．mightchargeC．shouldhavecharged D．wouldcharge15．—Wouldyoumindmovingoveralittle?Ihavetopasshere.—________I’dliketohelp.A．Notintheslightest. B．Don’tmentionit.C．Nevermind. D．Atyourservice.16．Theyfelt________itwashightaxandlowincome________contributedtotheextrememiseryoftheworkingpeopleatthebottomoftheladder.A．/；that B．that;whichC．that;what D．/;which17．I'dadviseanyonetoputasideaproportionoftheirearnings—____________.A．nothinggreatiseasy B．nothingcomesfromnothingC．abadpennyalwaysturnsup D．apennysavedisapennyearned18．—IheardMr.Morganwouldbehereat4:00pm.nextThursday.—No,he_____atthattime.A．wasboardingB．wouldbeboardingC．willbeboardingD．isboarding19．Itwasonlyafterafamilyrelatedconversation______________Ifoundoutshewasactuallymydistantcousin.A．when B．thatC．which D．who20．Notuntil_________________thebetterqualitiesinourselves____________expecttofindtheminothers.A．havewedeveloped;canweB．wehavedeveloped;thatcanweC．wehavedeveloped;canweD．canwedevelop;thatwewill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）AyoungmanreturnstohishometownofAractataca,Colombia.Hevisitsthehousewherehelivedasachild.Here,heremembersthemostimportantmemoriesofhischildhood.Standinginfrontofhisoldhouse,theyoungmanmakesanimportantdecision.Hesaystohimself,“Iwillstartmylifeoveragain.Iwillbecomeawriter.”Thismanistheworldfamouswriter,GabrielGarciaMarquez.GabrielGarciaMarquezwasbornonMarch6,1928.Duringhisearlylife,GarciaMarquez’sgrandmotherandgrandfathertoldhimmanystories.Hisgrandmotherwouldtellhimlegendsasiftheywerereal.GarciaMarquezsaysthathisgrandmother’swayofstorytellinglaterinfluencedhisownmethods.WhenGarciaMarquezwasabout20yearsold,heleftAractatacaandattendeduniversityinBogota.Hebeganstudyinglawbecausethiswaswhathisfatherwantedhimtostudy.However,GarciaMarquezwasnothappy.DuringthistimeGarciaMarquezreturnedtoAractataca.Itwasonthisvisitthatherealizedhemuststopstudyinglaw.Andherecognizedthathemustreturntothedreamofhischildhood-writing.Forthenextfewyears,GarciaMarquezwroteformanydifferentnewspapers.Andin1955,hepublishedhisfirstbookcalled“LeafStorm”.Formanyyears,GarciaMarquezknewhewantedtowriteabouthisgrandfather’shouseinAractataca.Towritethisbook,GarciaMarquezandhiswifehadtosellalmostalloftheirpossessionstosurvive.Buttheiractwasworthit.Thebook,“OneHundredYearsofSolitude”wasimmediatelysuccessful.AndthisbookcreatedapathforGarciaMarquez’sfuturesuccess.In1982,GabrielGarciaMarquezwasgiventheNobelPrizeinLiteratureforhisbook“OneHundredYearsofSolitude”,makinghimthefirstColombianandthefourthLatinAmericantowinaNobelPrizeinLiterature.1、WhoinfluencedGarciaMarquez’swritingstyle?A．Hisgrandfather. B．Hisfather.C．Hisgrandmother. D．Hiswife.2、Garciadecidedtotakeupwriting_________.A．whenheworkedforanewspaper B．undertheinfluenceofhisfamilyC．whenhegraduatedfromcollege D．afteravisittohishometown3、Garcia’sbook“OneHundredYearsofSolitude”.A．waswritteninthe1950s B．enjoyedaquicksuccessC．helpedGarcialeadabetterlife D．wasaboutGarcia’sgrandfather4、WhatdoweknowfromthetextaboutGarciaMarquez?A．HeisthefirstLatinAmericantowinaNobelPrizeinLiterature.B．Hewrotefornewspapersbeforepublishinghisownbooks.C．Hisbook“LeafStorm”markedhisgreatsuccessinliterature.D．Hefollowedhisfather’swishtobecomeawriter.22．（8分）WhenWarrenBuffett,themostsuccessfulinvestor,wasaskedaboutthesecrettohiswealthandsuccess,herevealedthathereadeveryday,500pages,tobeprecise.Unfortunately,ifyou'realreadyworking9‒5,youmightnothavethetimetoreadatall,letaloneanentirebookaday.Butwhatifyoucouldgetthebenefitsofreadingwithoutsacrificingallofyourfreetime?Youcan!WiththeBlinkistapp,yougetthekeylearninginminutes,nothoursordays.Ourexpertstransformthesebooksintoquick,easy-to-understandinsights.Startwiththe5most-readbooks.1.ThirteenThingsMentallyStrongPeopleDon'tDobyAmyMorin12minreadingtime147kreadsDoyoustruggletogetoveryourfailures?Gettingoverthesecanhaveaprofoundinfluenceonyoureverydaylife.Morinshareshowhermostsuccessfulpatientsovercamethesedifficulties.2.HowtoStopWorryingandStartLivingbyDaleCarnegie19minreadingtime238kreadsEverwonderedwhyyoucan'tstopworryingaboutsomething?Bydefiningthesourceofyourstress,youcangetoveritonceandforall.Carnegiecameupwithaformulathathelpsyouhandleanyoverthinkingsituation.3.HowWillYouMeasureYourLife?byClaytonM.Christensen13minreadingtime137kreadsAreyoumakingtherighttrade-offs(权衡)inlife?Whilecareerachievementscanbesatisfying,neglectingyourfamilyandfriendscanbebadinthelong-run—inwaysyoucan'tevenimagine.4.FindingYourElementbyKenRobinson13minreadingtime62.4kreadsEveryonehasapassion.Ifyoudon'tknowwhatyoursis,itjustmeansyouhaven'tdiscoveredityet.Findouthowyoucanbreakfreeofsociety'sstrictrulesandfindyourcallinginlife.5.EmotionalIntelligencebyDanielGoleman16minreadingtime318kreadsDidyouknowifyourpulseraterisesabove100bpm,you'redeemedtooemotionaltothinkrationally?Youprobablyletfeelingscloudyourjudgmentmoreoftenthanyouknow.Golemanexplainshowyoucanavoidlettingyouremotionsruleyouandmakebetterdecisionsinlife.1、WhatkindofpeopledoestheBlinkistappbestsuit?A．Successfulinvestors. B．Richbusinessmen.C．Peoplewhohavelittletimeforreading. D．Studentswholovebooks.2、Whichbookhasbeenreadbythelargestnumberofpeople?A．HowtoStopWorryingandStartLiving.B．HowWillYouMeasureYourLife?C．FindingYourElement.D．EmotionalIntelligence.3、Whichbookoffersadvicetopeoplewhofeelstressed?A．ThirteenThingsMentallyStrongPeopleDon'tDo.B．HowtoStopWorryingandStartLiving.C．HowWillYouMeasureYourLife?D．FindingYourElement.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（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．Howtotakeaplane24．（8分）Atsometimeinyourlifeyoumayhaveastrongdesiretodosomethingstrangeorterrible.However,chancesarethatyoudon’tactonyourimpulse(冲动),butletitpassinstead.Youknowthattocommittheactioniswronginsomewayandthatotherpeoplewillnotacceptyourbehavior.OneofthenewesttaboosinAmericansocietyisthetopicoffat.Unlikemanyothertaboos,fatisatopicthatAmericanstalkaboutconstantly.It’snotataboototalkaboutfat;it’satabootobefat.The“in”lookisthin,notfat.Intheworkworld,mostcompaniespreferyouthful-lookingexecutivestoselltheirimageaswellastheirproductstothepublic.Thethinlookisassociatedwithyouth,vigorandsuccess.Thefatperson,ontheotherhand,isthoughtofaslazyandlackinginenergy,self-disciplineandself-respect.Inanimage-conscioussocietyliketheUS,thinis“in”butfatis“out”.It’snotsurprisingthatmillionsofAmericanshavebecomecrazyaboutstayingslimand“inshape”.Thepursuitofayouthfulphysicalappearanceisnot,however,theonlyreasonforAmerica’sfascinationwithdietandexercise.Recentresearchhasshowntheimportanceofdietandexerciseforpersonalhealth.Asinmosttechnologicallydevelopednations,thelifestyleofNorthAmericanshaschangeddramaticallyduringthecourseofthelastcentury.Modernmachinesdoallthephysicallaborthatpeoplewereonceforcedtodobyhand.Carsandbusestransportusquicklyfrompointtopoint.Asaresultofinactivity,people’sbodiescaneasilybecomeweakandvulnerable(易受攻击的)todisease.Inanefforttoavoidsuchafate,millionsofAmericansarespendingmoreoftheirtimeexercising.1、Fromthetextwecaninferatabooisconsidered.A．popularwithpeopleB．unacceptableinpeopledeyesC．favorableimpressionleftonotherpeopleD．acrimecommittedonimpulse2、AccordingtothetextwecanconcludeinAmericansociety“beingfat”.A．hasn’tbeenatabooB．willremainatabooC．can’tbeatabooD．isnotconsideredataboobymostpeople3、IntheUS,thinis“in”butfatis“out”mostprobablymean.A．thinis“lazy”butfatis“kind”B．thinis“old”butfatis“youthful”C．thinis“unsuccessful”butfatis“successful”D．thinis“popular”butfatis“unpopular”4、WhyaresomanyAmericansexercisingmore?A．Tokeepstrongandfreefromdisease.B．Tofindgoodjobsinthecompanies.C．Toencouragetheirchildren.D．Toavoidbecomingold.25．（10分）Whenstudentsandparentsareaskedtoratesubjectsaccordingtotheirimportance，theartsareunavoidablyatthebottomofthelist.Musicisnice,peopleseemtosay,butnotimportant.Toooftenitisviewedasentertainment,butcertainlynotaneducationpriority（优先）.Thisviewisshortsighted.Infact,musiceducationisbeneficialandimportantforallstudentsMusictellsuswhoweare.Becausemusicisanexpressionofthebeingswhocreateit,itreflectstheirthinkingandvalues,aswellasthesocialenvironmentitcamefrom.RockmusicrepresentsalifestylejustassurelyasdoesaSchubertsong.ThejazzinfluencethatGeorgeGershwinandothermusiciansintroducedintotheirmusicisobviouslyAmericanbecauseitcamefromAmericanmusicaltraditions.Musicexpressesourcharacterandvalues.Itgivesusidentityasasociety.Musicprovidesakindofperception(视角)thatcannotbeacquiredanyotherway.Sciencecanexplainhowthesunrisesandsets.Theartsexploretheemotive（情感的）meaningofthesamephenomenon.Weneedeverypossiblewaytodiscoverandrespondtoourworldforonesimplebutpowerfulreason:Noonewaycangetitall.Theartsareformsofthoughtaspowerfulinwhattheycommunicateasmathematicalandscientificsymbols.Theyarewayswehumanbeings“talk”toeachother.Theyarethelanguageofcivilizationthroughwhichweexpressourfears,ourcuriositiesourhungers,ourdiscoveries,ourhopes.Theartsarewayswegiveformtoourideasandimaginationsothattheycanbesharedwithothers.Whenwedonotgivechildrenaccesstoanimportantwayofexpressingthemselvessuchasmusic,wetakeawayfromthemthemeaningsthatmusicexpresses.Somusiceducationisfarmorenecessarythanpeopleseemtorealize.1、Accordingtoparagraph1,students________.A．regardmusicasawayofentertainmentB．disagreewiththeirparentsoneducationC．viewmusicasanoverlookedsubjectD．prefertheartstoscience2、InParagraph2,theauthorusesjazzasanexampleto________.A．compareitwithrockmusicB．showmusicidentifiesasocietyC．introduceAmericanmusicaltraditionsD．provemusicinfluencespeople’slifestyles3、Accordingtothepassage,theartsandscience________.A．approachtheworldfromdifferentanglesB．exploredifferentphenomenaoftheworldC．expresspeople’sfeelingindifferentwaysD．explainwhatitmeanstobehumandifferently4、Whatisthemainideaofthepassage?A．Musiceducationdeservesmoreattention.B．Musicshouldbeoftopeducationpriority.C．Musicisaneffectivecommunicationtool.D．Musiceducationmakesstudentsmoreimaginative.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）Duringthewar,myhusbandwasstationedatanarmycampinadesertinCalifornia.Iwenttolivethereinordertobe1him.Ihatedtheplace.Ihadnever2beensounhappy.Myhusbandwasorderedoutonalong-termduty,andIwasleftinatinyshack(棚屋)alone.Theheatwas3—almost125°Fevenintheshadeofacactus(仙人掌).4asoultotalkto.Thewindblewnon-stop,andallthefoodIate,andtheveryairIbreathed,were5withsand,sand,sand!IwassosorryformyselfthatIwrotetomyparents.ItoldthemIwas6andcomingbackhome.IsaidIcouldn’tstanditoneminutelonger.I7beinprison!Myfatheransweredmy8withjusttwolines—twolinesthatwillalwayssinginmy9—twolinesthatcompletelychangedmylife:Twomenlookedoutfromprisonbars,Onesawthemud,theothersawthestars.Ireadthosetwolines10.Iwasashamedofmyself.ImadeupmymindIwouldfindoutwhatwasgoodinmypresent11;Iwouldlookforthestars.Imadefriendswiththenatives,andtheir12amazedme.Theygavemepresentsoftheirfavoriteartworkswhichtheyhad13toselltotourists.Istudiedthedelightfulformsofthecactus.Iwatchedforthedesertsunsets,and14forseashellsthathadbeenlefttheremillionsofyearsagowhenthesandsofthedeserthadbeenanocean15.Whatbroughtaboutthis16changeinme?Thedeserthadn’tchanged,17Ihad.Ihadchangedmy18.Andbydoingso,Ichangedanunhappyexperienceintothemostamazing19ofmylife.IwasexcitedbythisnewworldthatIhaddiscovered.Ihadlookedoutofmyself-createdprisonand20thestars.1、A．off B．behind C．near D．beyond2、A．before B．already C．then D．still3、A．inflexible B．incomprehensible C．uncontrollable D．unbearable4、A．Only B．No C．Many D．Such5、A．covered B．filled C．buried D．charged6、A．catchingup B．keepingup C．givingup D．gettingup7、A．oughtto B．mightwell C．wouldrather D．hadbetter8、A．request B．call C．question D．letter9、A．comparison B．imagination C．consideration D．memory10、A．overandover B．byandby C．upanddown D．nowandthen11、A．company B．occupation C．situation D．relationship12、A．movement B．reaction C．guidance D．purpose13、A．refused B．failed C．managed D．happened14、A．asked B．hunted C．waited D．headed15、A．floor B．surface C．rock D．level16、A．shocking B．challenging C．puzzling D．astonishing17、A．as B．but C．for D．or18、A．attitude B．principle C．identity D．standard19、A．vacation B．operation C．affair D．adventure20、A．sought B．counted C．found D．reached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）Thereisareasonwhywedream.Dreamsaren’tjustaproduct1．ourbraindevelopswhilewesleep.Thereissomethingmoretoitthanthat.It’sfromdreamsthatsomeofthegreatestinventionsofmanhavebecomea2．(real).There3．(be)averysimpleexercisetostartrecallingyourdreams.Before4．(go)tobed,foratleast24days,keeptellingyourself,"Iwillrememberallmydreams."5．first,youmaynotseeanyresultsatall,butjustinsist.Afterawhileyouwill6．(probable)noticethatvague(模糊的)memoriesofyourdreamswillstayin7．(you)mindwhenyouwakeup.Asyoucontinuetodothis,youwillnoticethatit'snotjustonedreamthatcomesbacktoyou8．anumberofdreams.Nowthefundoesn'tjuststopthere.Trytounderstandwhatyourdreamsmean,andseeifitappliestosomethingthatishappeninginyoureverydaylifeManyofthe9．(problem)westrugglewithhavealreadybeensolvedinour10．(amaze)mind.Theseanswerscometousintheformofdreams.第四部分写作（共两节）第一节短文改错（满分10分）28．（10分）每处错误仅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、每处错误及其修改均仅限一词；2、只允许修改10处，多者(从第11处起)不计分。Mr、Liismyheadteacher、Heisnowinhisthirtyandhasbeenteachinginalmosttenyears、Hehasmuchknowledgesandhisteachingmethodisscientific、Allofusenjoyhislessonswhicharelivelyandinterested、Notonlyishestrictandalsoheiskindandpatient、Asaresult,heispopularwithourstudents、Alltheseyearshehasdevotedtoteachinghisstudents、Inaddition,heoftengavehisencouragementtous,thatmeansalottous、Withhishelp,wehavemadeagreatprogress、Wealllovehim!第二节书面表达（满分25分）29．（25分）假如你是李华，最近你所居住的社区居委会为了推广社区文化，号召居民邀请自己的亲朋好友来社区参观交流。你准备给在本市上学的英国朋友George写封信，向他介绍你的社区并邀请他本周日前来参观。要点如下：1.社区位于城市中心，环境优美，居民守礼，在这里生活便利又舒适。2.社区背靠青山，远望大海5自然景色十分吸引人。3.近年来经济发展迅速，社区面貌焕然一新，居民安居乐业。注意：字数不少于100字，可适当增加细节。词汇：推广promote;便利convenient____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

参考答案第一部分（共20小题，每小题1.5分，满分30分）1、D2、B3、A4、C5、C6、D7、C8、C9、B10、D11、D12、B13、C14、C15、A16、A17、D18、C19、B20、C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、C2、D3、B4、B22、1、C2、D3、B23、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.Thejunkvariesfromtinypiecesofpaintchippedoffrocketstocameras,hugefueltanks,andevenodditemslikethemillion-dollartoolkitthatastronautHeidemarieStefanyshynPiperlostduringaspacewalk.Themajorproblemwiththespacetrashisthatitmayhitworkingsatellitesanddamagetravelingspacecraft(飞船).Moreover,piecesofjunkmaycollide（碰撞）witheachotherandbreakintopieceswhichfallbacktotheEarth.Toavoidthis,scientis