北京市第十二中學2025屆高三最后一卷英語試卷含解析

北京市第十二中學2025屆高三最后一卷英語試卷注意事項：1．答題前，考生先將自己的姓名、準考證號填寫清楚，將條形碼準確粘貼在考生信息條形碼粘貼區(qū)。2．選擇題必須使用2B鉛筆填涂；非選擇題必須使用0．5毫米黑色字跡的簽字筆書寫，字體工整、筆跡清楚。3．請按照題號順序在各題目的答題區(qū)域內(nèi)作答，超出答題區(qū)域書寫的答案無效；在草稿紙、試題卷上答題無效。4．保持卡面清潔，不要折疊，不要弄破、弄皺，不準使用涂改液、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．CanIparkmycarhere?Surenot,wedon’tallowhere.A．toparking B．park C．topark D．parking2．Thereareprobablyalienslivinghereonearth._____!Ican’tbelieveyousaidthat.A．Comeon B．ForgetitC．Goahead D．Allowme3．Duringthe2008financialcrisis，theFrenchpresidentNicolasSarkozyagreedtoprovidemillionsofemergencyfundaidtohelpunemployment．A．release B．resemble C．relieve D．recommend4．Inmyopinion,parentsandteachersaresupposedtosetanexampleofgoodbehaviortochildren_____theyarerolemodelstothem.A．a(chǎn)lthough B．evenif C．unless D．a(chǎn)s5．—Hi!John,wouldyouliketoplayfootballwithus?—Oh，Ican’t.I___mylessonallthemorningandstillneedhalfanhour.A．a(chǎn)mreviewing B．havebeenreviewingC．havereviewed D．reviewed6．Notuntiltheendoftheperformance________thechancetotakephotoswiththerespectableactor.A．theaudiencegot B．theaudiencehadgotC．didtheaudienceget D．hadtheaudiencegot7．Sitdown,Emma.Youwillonlymakeyourselfmoretired,onyoufeet.A．tokeep B．keeping C．havingkept D．tohavekept8．Thiskindofgelpenwhich______smoothlyisquitepopularwithstudents.A．iswrittenB．iswritingC．wroteD．writes9．Excuseme,wherecanIgetmycarfilledup?Therearegasstationsat________endoftheblock．A．both B．neitherC．either D．a(chǎn)ll10．AninternationalteamofastronomersannouncedWednesdaythatthey________thefirst-everimageofablackhole.A．havecaptured B．werecapturingC．hadcaptured D．wouldcapture11．AsurveysuggeststhattheroyalweddingofPrinceWilliamandKateMiddleton_____agreatboostforBritisheconomybecausealargenumberofvisitorsareexpectedtogo.A．willbe B．hasbeen C．was D．be12．—Shallweturntothebossforalongerholiday?—He’llprobablysayno,________it’sworthasking.A．soB．whileC．unlessD．though13．I’llpayavisittoHongKong.Wouldyoumindkeepinganeyeonmyhouse?Notatall.______.A．I’drathernot B．I’dbehappyC．I’venotime D．I’dliketo14．We__________backinthehotelnowifyoudidn’tlosethemap．A．a(chǎn)re B．wereC．wouldbe D．willbe15．Theyintendedtohavetheschoolbetterequipped，thelocalgovernmentwas notabletogetenoughmoneytodoso.A．unless B．while C．a(chǎn)lthough D．once16．Althoughwarstillexistsonourplanet，Idobelieveit’spossiblefordifferentethnicgroupstolivetogetherin______.A．a(chǎn)greementB．harmonyC．connectionD．comparison17．Youngcoupleswillbehappytoseetheirbabies_______withgoodhealthandintelligencewhentheyareborn.A．tobless B．blessingC．blessed D．beingblessed18．Whyaresomebrandsmorepopularthanothers______theproductsareofsimilarquality?A．a(chǎn)sthough B．evenif C．sothat D．incase19．—Youcouldalwaysputthedecisionoffalittlebitlonger.—__________IfIleaveitmuchlongerImightmissmychance.A．That’sreasonable. B．Isn’titagoodidea?C．Doyouthinkso? D．Ican’tagreemore.20．Notuntil_________________thebetterqualitiesinourselves____________expecttofindtheminothers.A．havewedeveloped;canweB．wehavedeveloped;thatcanweC．wehavedeveloped;canweD．canwedevelop;thatwewill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四個選項中，選出最佳選項。21．（6分）Disney’sFamilyMagicTourMagicKingdom?ParkWaltDisneyWorld?ResortValidParkAdmissionRequiredPriceAdultUSD$39.00HoursTuesday,October6,2017,10:00A．M.PutonYourDetectiveHat!Solveconfusingmysteriesonthishigh-energyinteractive（相互作用的）search—youneverknowwhomyoumightmeetalongtheway!FollowyourguideasyoumakewaythroughMagicKingdomPark,pickingupclueaftercluewhileunlockingasplendidandmemorablesearchyouwon’tsoonforget.Besuretobringyourcameratocatchallthememorablesurprisesasyouandyourgroupwindyourwaythroughmanyofthemagicallandsthroughoutthepark.KnowBeforeYouGoViewimportantinformationincludingexperiencedetails,guestrestrictionsandcancellationpolicies.◆Childrenandtheyoungatheartwillenjoythisimaginativeadventure,thoughitisbestsuitedforguests4to10yearsofage.Guests17yearsofageandunder(free)mustbeaccompaniedbyapayingadult(18yearsofageorolder).◆Pleasenotethatthetourinvolvesalotofoutdoorwalkingforabout2hours,sobesuretochecktheweatherforecastanddressproperly,includingwearingcomfortableshoes.Accordingly,thetourmaybetoodifficultforsomeofouryoungerguests.◆PleasecheckinattheChamberofCommercebuildingclosetoCityHall15minutesbeforeyourexperience.Youwilllosetheentirepriceofyourtourifyoudon'tshowuporcancelwithin2daysofyourreservation.◆Same-daybookingsareavailableonawalk-upbasisonly.1、Whatisencouragedtocarrywhentravelling?A．Acamera. B．Ahat.C．Amirror. D．Aticket.2、Howmuchshouldbepaidifaten-year-oldboyandhisparentsexperiencethepark?A．Nothing. B．39dollars.C．78dollars. D．117dollars.3、Whyshouldtheguestschecktheweatherforecastanddressproperlybeforethetour?A．Thetourincludesabout2-houroutdoorwalking.B．Theguestsaresoyoungthattheycan'twalk.C．Thebadweathercanstopthenormaltour.D．Theguestsdressproperlytomakethetourhappy.22．（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）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．Howtotakeaplane23．（8分）Withover2.4millonvisitorseveryyear，CinqueTerreisoneofthemost-visitedregionsinItaly.CinqueTerreistrulyspecial.Thefivecandy-coloredfishingvillagesofRiomaggiore，Manarola，Comiglia，Vemazza，andMonterossoalMarearebuiltintocliffsoverthecleanandbrightly-shiningLigurianSea.Whetheryou'revisitingtheregionforafewdaysorafewweeks，thesearetheexperiencesyoushouldaddtoyourtrippleasure.★Takeascenichike.It'seasytovisiteachoftheattractivevillagesonfoot.ThemostpopularhikeisthecoastalpathSentieroAzzuro.Itlinksallfivevillagesandoffersextremelybeautifulsceneryofthesea，architectureandvineyards(葡萄園).Ittakesaboutsixhourstogoacross，withshortbreaks，butmostpeoplearegoingtostopinthevillagesforfoodandswimming.★Eatseafoodinacone(錐形).DessertloversmightthinkthatItalianice-creamisthebestthingtobeservedinaconebutmakeroomforseafoodconesaswell.Thankstoitscoastallocation,CinqueTerreisfullofseafoodrestaurants.★Getonaboat.Iftheweathercooperates,takethetimetogetoutonthewater.Thevillageslookverybeautifulfromaboat.Thecheapestandeasiestwayistojumponthepublicferryfromoneofthevillagestothenext,buttheseboatsareoftencrowded.It'sfarmorerelaxingtotakeaprivatecruise,whichdepartsfromthedocksinRiomaggiore,Manarola,Vemazza,andMonterossoalMare.★Takethetrain.CinqueTerre'strainsystemisoneofthemostscenicinEurope.Thehigh-speedtrainrunsthrougheachofthefivevillagesevery20minutesorso.Andthewholelineisdirectlyonthecoast,offeringlovelyviewsoftheLigurianSeaandrockycliffs.1、Whatisspecialaboutthefivecandy-coloredfishingvillages?A．Theirspeciallocation. B．Theirlonghistory.C．Theirdeliciousfoods. D．Theirfriendlyvillagers.2、Whatisthefavoritefoodforthehikersinthefivevillages?A．Italiannoodles B．Italianice-cream.C．Italianwines. D．Seafoodcones.3、Whatisthebestwaytoenjoythebeautifulsceneryanddeliciousfood?A．Takingaprivateferrytothevillages.B．Walkingwithshortbreaksonthecoast.C．Takingascenichikealongthecoastalpath.D．Takingthetrainrunningthroughthevillages.24．（8分）It’s8a.m.,Tuesday,Nov.18,2028,andyouareheadedforabusinessappointment300milesaway.Youstepintoyourcircle,two-passengerair-cushioncar,pressaseriesofbuttonsandthenationaltrafficcomputernotesyourdestination,figuresoutthecurrenttrafficsituationandsignalsyourcartoslideoutofthegarage.Handsfree,yousitbackandbegintoreadthemorningpaper—whichisflashedonaflatTVscreenoverthecar’sdashboard.Tappingabuttonchangesthepage.Thecarspeedsupto150mphinthecity’scountryside,andthenhits250mphinlessbuilt-upareas,drivingoverthesmoothplasticroad.Youflypastastringofcities,manyofthemcoveredbythenewdomes(圓屋頂)thatkeepthemevenlyclimatizedallyearround.Trafficisheavy,typically,butthere’snoneedtoworry.Thetrafficcomputer,whichsendsandreceivessignalstoandfromallcarsontheroadbetweencities,keepsvehiclesatleast50ydsapart.Therehasn’tbeenanaccidentsincethesystembegan.SuddenlyyourTVphonebuzzes.Abusinesspartnerwantsasketchofanewkindofimpelleryourfirmisputtingoutforsportsboats.Youreachforyourcaseanddrawthediagramwithapencil-thininfraredflashlight(紅外線閃光燈)onwhatlookslikeaTVscreenliningthebackofthecase.Thediagramissenttoasimilarscreeninyourpartner’soffice,200milesaway.Hepressesabuttonandafixedcopyofthesketchrollsoutofthemachine.Hewishesyougoodluckatthecomingmeetingandsignsoff.Ninetyminutesafterleavingyourhome,youslidebeneaththedomeofyourdestinationcity.Yourcarslowsdownandheadsforanouter-coreofficebuildingwhereyou’llmeetyourcolleagues.Afteryougetout,thevehicleparksitselfinagaragetoawaityourreturn.Privatecarsaren’tallowedinsidemostcitycores.Movingsidewalksandelectrams(電車)carrythepublicfromonelocationtoanother.1、Thetrafficcomputerinyourcarcan________.A．keepyourcaratasafedistancefromothercarsB．keepyourcaratthesamespeedindifferentsituationsC．keepyourcarreceivingsignalsofTVprogramsD．keepyourcardrivingavoidingheavytraffic2、Whyarethecitiescoveredbythenewdomes?A．Topreventpeoplefrombeingwetintherain.B．Tostoptheclimateofthecitieschangingviolentlyallyear.C．Toprotectthetravelersagainstthestrongsunshine.D．Tomakethecityhavethesameweatherallyear.3、Whatwillthecitybelikeinthefuture?A．Noaccidentswillhappenbecauseofheavytraffic.B．Thesidewalkcanmoveitselfupanddown.C．Theroadisbuiltwiththeplasticmaterial.D．Thecarparksitselfonadometowaitforyourreturn.4、Thethirdparagraphmainlytells________.A．youareluckytosellproductsofyourcompanyB．youreceivebestwishesfromyourbusinesspartnerC．youcandobusinesswithanewlyinventedpencilD．youcandobusinessevenontheroadinthefuture25．（10分）TheLondonTravelcardisapaperticketthatisvalidonallLondonpublictransport.Onlineexclusive:youcannotbuyapaper7DayTravelcardfromUndergroundstationsinLondon—itcanonlybeboughtinadvance.Unlimitedtravel:theTravelcardgivesyouunlimitedtravelonLondon’spublictransportnetwork.Noqueuing:whileothervisitorswaitinlineatthetrainstationwiththeirheavybags,you’llbereadytotravelassoonasyouarriveinLondon.Lowprices:aTravelcardisofgreatvalue,andyougetadiscountontheTamesRiverboatsandEmiratesAirLinecablecar.ShouldIbuyanAnytimeTravelcardoranOffPeakTravelcard?Itdependsonwhattimeofthedayyouwillbetravelling:AnytimeTravelcardscanbeusedatanytime;OffPeakTravelcardsarecheaper,butcannotbeusedonMondaytoFridaybefore9:30am.WhichzonesdoIneedaTravelcardfor?ThecenterofLondon,includingmostmajorattractions,isinZones1–2.Mostsuburban(郊區(qū)的)areasofLondon,includingWembleyStadiumandWimbledonTennisClub,arewithinZones1-4.AlmostthewholeofLondon,includingHeathrowandLondonCityAirports,isinZones1-6.Tocheckwhichzonestheareasyouwanttovisitarein,seethefullmapoftheLondontransportnetwork.Ticketsprices:Zones1–2Zones1–3Zones1–4Zones1–5Zones1–61DayAnytimeN/AN/AAdult:12.10Child:6.00N/AAdult:17.20Child:8.601DayOffPeakN/AN/AN/AN/AAdult:12.10Child:6.007DayAnytimeAdult:32.40Child:16.20Adult:38.00Child:19.00Adult:46.50Child:23.30Adult:55.20Child:27.60Adult:59.10Child:29.60SingleJourneyN/AN/AN/AN/AAdult:6.00Child:3.00Adult:(16+)Child:(11-15)—Under11travelfree,11+needtheirowntravelticket.N/A:NotavailableLondonTravelcardscanbeusedon:LondonUnderground(theTube)OvergroundandNationalRailtrainsinLondonLondonbuses(inanyZone,irrespectiveofthezonesshownontheticket)Trams(有軌電車)inSouthLondonDocklandsLightRailway(DLR)Youcanalsogeta33%discountonriverboatsanda25%discountintheEmiratesAirLinecablecar.1、WhichofthefollowingstatementistrueabouttheLondonTravlecard?A．youcanbuyitfromUndergroundstationsinLondonB．itsavesyoualotoftimewaitinginlinetogetaticket.C．itspriceisbasedonhowmanytimesyouwanttotravel.D．WithityoucangetadiscountonalltransportinLondon.2、IfyouwanttotravelfromcentralLondontoWembleyStadiumafter10amandstayatyourfriend’shomenearbyfortwodays,a______isyourbestchoice.A．1DayAnytimeTravlecardforZones1–4.B．1DayOffPeakTravlecardforZones1–6.C．SingleJourneyTravlecardforZones1–6.D．7DayAnytimeTravlecardforZones1–4.3、IfJackisplanningtotakehistwokids(aged10and16)totravelinthecentreofLondonwiththe7DayAnytimetickets,heshouldpay______.A．32.40 B．48.60C．64.80 D．81.004、ALondonTravelcardforZones1–4canNotbeusedon______.A．LondonbusesinZones1–6B．NationalRailtrainsincentralLondonC．theDocklandsLightRailwaywithinZone4D．theLondonUndergroundtogettotheairports.第三部分語言知識運用（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四個選項中，選出可以填入空白處的最佳選項．26．（30分）Hedroveafterdrinkingalcohol,havingasevereaccidentandhadtogethisarmsremoved．Sincethen,hehashadto__31__onhisyoungerbrother,whobecamehisshadow,neverleavinghimaloneforyears.Exceptforwritingwithhistoes,hewastotallyunabletodo__32__else.Asthetwobrothersgrewuptogether,theyhadtheirownproblemsandwouldoften__33__.Finally,hisyoungerbrotherwentawayandlived__34__,leavinghimheartbrokenandatalosswhattodo.__35__,amisfortunebefell（降臨）agirl.Onenightshewaspreparingdinnerwhenthekerosenelightonthestovewasoverturned,__36__inafirewhichtookherhandsaway.Havingdecidedly__37__hersister’swillingnesstohelpher,shedeterminedtobethoroughly__38__.Atschool,shealwaysstudiedhard．Mostofallshelearnedtobeself-reliant.“Iamlucky.Thoughmy__39__arebroken,myheartcanstillfly.”shewroteinherblog.Oneday,theyoungmanandthegirlwerebothinvitedtoa（n）__40__programme.Theboytoldthetelevisionhostessabouthis__41__future,whereasthegirlwasfullof__42__forherlife.Theywerebothaskedtowritesomethingonapieceofpaperwiththeir__43__.Theboy:Myyoungerbrother’sarmsaremyarms.Thegirl:Brokenwings,flyingheart.Theyhadbothgonethroughthesameordeal（痛苦經(jīng)歷）,buttheirdifferent__44__1determinedthenatureoftheirlives.Asseemsthecase,__45__disasterscanstrikeourlifeatanytime.Howyouhandlethe__46__whenfacedwithitisthetrue__47__ofyourcharacter.Ifyouchooseto__48__orescapefromtheordeal,itwillfollowyouwhereveryougo.Butifyoudecidetobestrong,the__49__willturnouttobeafortuneonwhichnew__50__willarise.1、A．live B．stand C．rely D．a(chǎn)ssist2、A．something B．everything C．nothing D．a(chǎn)nything3、A．quarrel B．share C．support D．dislike4、A．happily B．lonely C．separately D．disappointedly5、A．Unfortunately B．Unexpectedly C．Similarly D．Naturally6、A．leading B．bringing C．causing D．resulting7、A．turnedto B．turneddown C．turnedoff D．turnedagainst8、A．a(chǎn)lone B．free C．independent D．successful9、A．a(chǎn)rms B．wings C．dreams D．promises10、A．interview B．radio C．sports D．health11、A．hopeful B．uncertain C．bright D．miserable12、A．calmness B．enthusiasm C．patience D．excitement13、A．hands B．strength C．toes D．mouths14、A．characters B．desires C．opinions D．a(chǎn)ttitudes15、A．unexpected B．passive C．rough D．serious16、A．emergency B．misfortune C．difficulty D．a(chǎn)ccident17、A．test B．reflection C．display D．problem18、A．ignore B．resist C．complain D．suffer19、A．problem B．result C．failure D．hardship20、A．solutions B．ways C．rewards D．hopes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個適當?shù)膯卧~或括號內(nèi)單詞的正確形式。27．（15分）語法填空Usually,people1．(go)onholidaytorelaxwhentheydon’thavetowork.Thesedays,anewkindofholidayisgettingmoreandmorepopular—helpingpeopleindevelopingcountriesthroughvolunteerprojects.Avolunteerholidayisavery2．(meaning)waytoseeculturesofothercountries.Volunteersoftenworkwithpeopleofthecountrytohelpthepoor.Moreandmorepeopleenjoy3．(take)avolunteerholidaybecauseitoffersthemachance4．(see)thecountrytheyarevisitinginadifferentway.第四部分寫作（共兩節(jié)）第一節(jié)短文改錯（滿分10分）28．（10分）短文改錯（共10小題，每小題1分，滿分10分）Formostpeople,itisalmostimpossibletooperateonacomputerwithoutamouse,letalonesurftheInternet、Awell-chosenmouseisreallyhandy,flexibleandconvenienceincontrollingthescreen、Withoutthefunctionsofinserting,deleting,movingandcopying,itenablesustoedittext,browsewebpagesanddownloadthatwewant、Itcanevenbringusafloodofmusics,moviesandPCgames、Justimagining,allthatcanbedonewithacutemouse、Aconvenienttoolcancertainmakeourworkeasier,anditdoesn’talwayshelpinapositiveway、Toomuchreadyinformationonourfingertipsleavesalittleroomforknowledgepursuing、Toomanyreadyanswersmakeuslessexcitedinfindingtruth、Relyingtoomuchonmouseclickingmakeusmuchlazierandlesscreative、第二節(jié)書面表達（滿分25分）29．（25分）假定你是李華,你校將舉行“讀書節(jié)”,請你寫封郵件邀請在你校學習的Tony參加。內(nèi)容包括:1.目的和時間:2.內(nèi)容:交換書籍、西方文學講座、中國詩歌朗誦比賽等。注意:1.詞數(shù)100左右；信的開頭已經(jīng)寫好。2.可適當增加細節(jié),以使行文連貫。_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

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、B6、C7、B8、D9、C10、C11、A12、D13、D14、C15、B16、B17、C18、B19、C20、C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四個選項中，選出最佳選項。21、1、A2、C3、A22、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）thattherearenowover500,000piecesofman-madetrashorbitingtheEarthatspeedsofupto17,500milesperhour.Thejunkvariesfromtinypiecesofpaintchippedoffrocketstocameras,hugefueltanks,andevenodditemslikethemillion-dollartoolkitthatastronautHeidemarieStefanyshynPiperlostduringaspacewalk.Themajorproblemwiththespacetrashisthatitmayhitworkingsatellitesanddamagetravelingspacecraft(飛船).Moreover,pieces