四川省涼山州會東中學(xué)2025屆高考沖刺模擬英語試題含解析

四川省涼山州會東中學(xué)2025屆高考沖刺模擬英語試題考生須知：1．全卷分選擇題和非選擇題兩部分，全部在答題紙上作答。選擇題必須用2B鉛筆填涂；非選擇題的答案必須用黑色字跡的鋼筆或答字筆寫在“答題紙”相應(yīng)位置上。2．請用黑色字跡的鋼筆或答字筆在“答題紙”上先填寫姓名和準(zhǔn)考證號。3．保持卡面清潔，不要折疊，不要弄破、弄皺，在草稿紙、試題卷上答題無效。第一部分（共20小題，每小題1.5分，滿分30分）1．—Howwasyourjobinterview?—Verysuccessful.I________myhomeworkaboutthecompany,youknow.A．haddoneB．havedoneC．didD．wasdoing2．Noonebelieveshisreasonsforbeinglatethathewascaughtinatrafficjam,_______madehimembarrassed.A．it B．which C．that D．why3．studentsEnglishwell,theteachertriestospeakEnglishinclassveryoften.A．TeachingB．TaughtC．ToteachD．Teach4．WeChinesearedrinking______milkperpersontodayaswedidin1995.A．morethantwice B．twiceasmuchC．twiceasmanyas D．twiceasmuchas5．HelensaidthatshewouldbringmeJustinBieber'slatestCDthenextday,butshe.A．wouldn't B．didn'tC．hadn't D．hasn't6．—Iforgottoregisterforthecourses.I’monedaylateandmostoftheclassesarefull.WhatshallIdo?—________Youcan’tdoanythingaboutthat.A．Takeyourtime. B．Pooryou!C．Sowhat? D．Noway!7．Youcan’tusethecomputernow,________theupgradeofthesystemisunderway.A．until B．unlessC．a(chǎn)s D．a(chǎn)fter8．_____howtogetalongwithothersisveryimportantinsuccess.A．KnowB．KnownC．HavingknownD．Knowing9．Smoking______inthekitcheninmyhouse.A．doesn’tallowB．didn’tallowC．isn’tallowedD．won’tallow10．---Excuseme,wouldyouplease______mesomepetrol?---Sorry.Ihaveonlyalittleleftinmycar.A．spareB．saveC．shareD．spend11．____________thefiercecompetitioninjobseeking,manyuniversitygraduateshavenochoicebuttoreducetheirowndemandforthesalary.A．FacedB．FacingC．TofaceD．Havingfaced12．Moststudentsstudybecauseit’sunavoidable.________,therearestudentswhoactuallyenjoyit.A．Asaresult B．InadditionC．Inconclusion D．Bycontrast13．—Irisisalwayskindand________tothesufferingofothers.—Nowondershechoosestobeareliefworker.A．a(chǎn)llergicB．immuneC．relevantD．sensitive14．—Irene,doyoureallywanttogoout?—Itmayrain.___________,Iwillgoout;Idon’tmindtherain.A．Anyhow B．OtherwiseC．Somehow D．Therefore15．Itisobvioustothestudents_____________theyshouldgetwellpreparedfortheirfuture.A．a(chǎn)s B．thatC．which D．whether16．Therearevariousthingsonsale,soyoucanchoose______interestsyou.A．whoever B．nomatterwhoC．whatever D．nomatterwhat17．Shedidnotfeelabitnervousthoughitwasthefirsttimeshe___________inpublic.A．spoke B．havespokenC．hadspoken D．werespeaking18．Whilewewerelisteningtothespeechattentively,avoice_____toannouncetheresultoftheelection.A．brokein B．brokeup C．brokeoff D．brokedown19．Workinghardisnota__________ofgreatsuccess,butitisamongtheessentialrequirements.A．sign B．signalC．guarantee D．mark20．Yet_______intheprocessofdevelopmentdidtheystoptoconsidertheimpactoftheir“progress”onnature.A．innotimeB．a(chǎn)tnopointC．a(chǎn)slikelyasnotD．moreoftenthannot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）“Birds”and“airports”aretwowordsthat,pairedtogether，don’tnormallypaintthemostharmoniouspicture.SoitreallyraisessomeeyebrowswhenChinaannouncesplanstobuildanairportthatisforbirds.Describedastheworld’sfirst-everbirdairport,theproposedLingangBirdSanctuary(保護區(qū)）inthenortherncoastalcityofTianjinis,ofcourse,notanactualairport.Rather，it'sawetlandpreservespecificallydesignedtoaccommodatehundreds-eventhousands-ofdailytakeoffsandlandingsbybirdstravelingalongtheEastAsian-AustralianFlyway.Over50speciesofmigratory(遷徙的）waterbirds，someendangered,willstopandfeedattheprotectedsanctuarybeforecontinuingtheirlongjourneyalongtheflyway.Locatedonaformerlandfillsite，the150-acreairportisalsoopentohumantravelers.(Halfamillionvisitorsareexpectedannually.)However，insteadofduty-freeshopping，themainattractionfornon-egg-layingcreaturesatTianjin’snewestairportwillbeagreen-roofededucationandresearchcenter,aseriesofraised“observationplatforms”andanetworkofscenicwalkingandcyclingpathstotalingover4miles.“TheproposedBirdAirportwillbeagloballysignificantsanctuaryforendangeredmigratorybirdspecies,whileprovidingnewgreenlungsforthecityofTianjin.”AdrianMcGregorofanAustralianlandscapearchitecturefirmexplainedofthedesign.Frequentlyblanketedinsmogsothickthatithasshutdownrealairports,Tianjinisacity---China’sfourthmostpopulous----thatwouldcertainlybenefitfromanewpairofhealthygreenlungs?1、Theunderlinedphrase“non-egg-layingcreatures”inParagraph3refersto?A．Visitors. B．Designers.C．Endangeredwaterbirds. D．Planes.2、Whatdoweknowabouttheairportaccordingtothepassage?A．Peoplecannotwatchbirdsupclosehere.B．Itislocatedona150-acrelandfillsite.C．Itfunctionsasanactualairportandawetlandpreserve.D．Itprovidesmigratorybirdswithfoodandshelter.3、Whatcanweinferfromthelastparagraph?A．Theairportwillbecomeapermanenthomeforbirds.B．Tianjinwillwinworldwidefameinthefuture.C．Tianjin’sairqualitywillimprovethankstotheairport.D．Tianjinwillbeabletoaccommodatemorepeople.4、Whatisthispassagemainlyabout?A．Airportsshutdownandopenup.B．ChinaistoopenthefirstBirdAirport.C．Airportsturnintogreenlungs.D．Birdsarenolongerenemiestoairports.22．（8分）Likeitorloveit,socialmediaisamajorpartoflife.Clickingonathumbs-uporahearticon(圖標(biāo))isaneasywaytostayintouch.Whetheryou’reonFacebook,what’sApporTwitter,theway,ofkeepingintouchisnolongerfacetoface,butinsteadscreentoscreen,highlightedbythefactthatmorethan1billionpeopleareusingFacebookeveryday.Socialmediahasbecomesecondnature—butwhatimpactisthishatingonus?LaurenShermanant]herteam,whostudythebrainatTempleUniversityinPhiladeiphia,mixed20teens’photoswith10otherpicturesfrompublicInstagramaccounts.Thentheyrandomlygavehalfoftheimagesmanylikes(between23and45;mosthadmorethan30).Theygavetheotherhalfnomorethan22likes(mosthadfewerthan15).Theresearcherswantedtofindouthowtheparticipants’brainswererespondingtothedifferentimages.Whiletheteenswereinamachine,researchersaskedthemtoeitherlikeanimageorskiptothenextone.Teensweremuchmorelikelytolikeimagesthatseemedpopular—thosethathadmorethan23likes,Sherman’steamfound.Thekidstendedtoskippictureswithfewlikes.Aspartoftheexperiment,participantswerealsoshownarangeof“neutral”photosshowingthingslikefoodandfriends,and“risky”photosconcerningcigarettesandalcohol.Whenlookingatphotosshowingriskybehaviors,suchassmokingordrinking—nomatterhowmanylikestheyhad—thebrainregionlinkedtocognitive(認(rèn)知的)controltendedtobecomelessactive.Thesekindsofpicturescanlowertheviewer'sself-contro1.Thatmeanswhatyoulikeonlinehasthepowertoinfluencenotjustwhatotherslike,butevenwhattheydo.Viewingpictureslikethesecouldmaketeensletdowntheirguardwhenitcomestoexperimentingwithdrugsandalcohol,Shermanworries.1、Whatdoesthetextfocuson?A．Thebehaviorsofteens．B．Theself-controlofteensC．TheinfluenceofsocialmediaD．Thepopularityofsocialmedia2、Whichofthefollowingmightbeincludedintheexperiment?A．Seventeenimagesaregiven20likesB．Fifteenimagesaregiven25likesC．Fifteenimagesaregiven42likesD．Eightimagesaregiven40likes3、What’sSherman’sconcernaboutonlinephotos?A．MorelikesmaybegivenB．MisbehaviorsmaybeencouragedC．MoreriskypicturesmaybepostedD．Cognitivecontrolmaybecomelessactive4、Whatistheauthor’spurposeinwritingthetext?A．TocondemnimmoralsocialbehaviorsB．TopromotemodernsocialmediaC．ToexplainthebrainsystemD．Tointroduceanewresearch23．（8分）VancouverToursVancouverStanleyParkTourIfyouwanttoseethemajorsightsinVancouverandcomehomewithamazingphotographs,this3-hourphotographytouristhewaytogo.WalkthroughVancouver’stopsightseeinglocations;getguidanceonphotographybasicsandfindthebestspotstophotographthecity.FromStanleyPark’stotempolesandold-growthtreestothemostpopularbeachesanddiningspots,youleavewithbeautifulmementosofthecity.HistoricalChinatownWalkingTourExplorethecolorfulpastofCanada’soldestChinatown,inVictoria,BritishColumbia.Thisguidedwalkingtourwillleadyouthroughthestreetsandstoriedalliesofthehistoricneighborhood,asyourguidetellsyoutheinteresting,sometimessadtalesofthepeoplewhohelpedbuildthecityandshapeCanadaaswellasmodemChina.SmallGroupSeatoSkyTourTheSeatoSkyHighwayisoneoftheworld’smostbeautifulandcelebratedroadways.Youdon’thavetotakeyoureyesoffthesceneryonthissmallgrouptourbecausesomeoneelseisdoingthedriving.TourstopsincludeashorthiketoimpressiveShannonFalls,thegorgeousSeatoSkygondola,andaward-winningBritanniaMineMuseum.EagleViewingRiverFloatTourDresswarmlyunderablanketwithacupofhotchocolateforawinterfloatontheriver.Theareaisthewinterhabitatofbaldeagles,andthistripgivesyoutheopportunitytolearnaboutthebirdsasyoufloatthroughtheirarea.Aftertheboatride,returntodrylandjustintimeforafree,heartymealbeforeheadingbacktoVancouver.1、Inwhichtourwillyougetinstructioninphoto-taking?A．SmallGroupSeatoSkyTour.B．VancouverStanleyParkTour.C．EagleViewingRiverFloatTour.D．HistoricalChinatownWalkingTour.2、WhatwillyoudoontheChinatownWalkingTour?A．BuildmodernChina. B．Tellinterestingstories.C．Learnaboutitshistory. D．Enjoyboatsightseeing.3、WhichofthefollowingdoestheEagleViewingRiverFloatTourprovide?A．Afreeeaglehunt. B．Afreeandheartymeal.C．Ahikeinthewoods. D．Acupofblackcoffee.24．（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．Howtotakeaplane25．（10分）GetSmart:PicksofEducationalAppsWhenitcomestomobileapps,there’sadiverserangeofsoftwarethatfallsundertheumbrellaofeducation.Thislistisfocusedonusefulappsinthiscategory.BrainscapeBrainscapeclaimsyoucandoubleyourlearningspeedbyusingflashcards(閃卡).Itpacestherepetitionofeachconceptperfectly.RatehowwellyouknoweachconceptandBrainscapewilldeterminetherighttimetogiveyouanotherquiz.Subscriptionisbilledat$10permonth,$30halfayear,or$36peryear.DueYoucanthinkofDueasanalarmclockthatfunctionswithoutanaccountorInternetconnection.WithDue,youcansetreusablecountdownremindersandperformbothdailyandweeklyremindersthatusenearly60alarmsounds.Moreover,remindersautomaticallyshiftasyoucrosstimezones.A$5chargefordownload.GradeProofGradeProofoffersconcretewaystoimproveyourEnglishwritingstyle,checkfororiginalityandidentifycomplexgrammaticalissuesthatotherwordprocessorsoftenmiss.Whiletheappitselfisfree,you’llneedtopay$10permonthtoupdateittounlockthefullpowerofthispocketwritingcoach.DuolingoThecrowd-sourcedDuolingogivesyoutheopportunitytotranslatetextsintomanylanguages---e.g.Spanish,German,Brazilian,andItalian.Italsoofferslanguagecoursesatalllevels.Duolingocurrentlyoffersthefollowingsubscriptions:$9permonth;$47persixmonths;$79pertwelvemonths.1、Whichappcanhelpimprovetimemanagementskills?A．Due.B．Duolingo.C．Brainscape.D．GradeProof.2、WhatcanGradeProofhelpuswith?A．Amathquiz.B．Freedownload.C．Englishwritingskills.D．Spanish-Englishtranslation.3、Howmuchshouldyoupayforahalf-yearlanguagelearningsession?A．$30.B．$47.C．$60.D．$79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）IhadworriedmyselfsickoverSimon’smothercomingtoseeme.Iwasanew1,andIgaveanhonestaccountofthestudents’work.InSimon’scase,thegradeswereawfullylow.Hecouldn’treadhisownhandwriting.2hewasabrightstudent.Hediscussedadultsubjectswithnearlyadultcomprehension.Hisworkinnowayreflectedhis3.SowhenSimon’smotherenteredtheroom,mypalms(手掌心)weresweating.Iwascompletely4forherlissesonbothmycheeks.“Icametothankyou,”shesaid,surprisingmebeyondspeech.5me,Simonhadbecomeadifferentperson.Hetalkedofhowhe6me,hehadbegantomakefriends,andforthefirsttimeinhistwelveyears,hehad7spentanafternoonatafriend’shouse.Shewantedtotellmehowgratefulshewasforthe8Ihadnurtured(培養(yǎng))inherson.Shekissedmeagainandleft.Isat,stunned(驚呆),forabouthalfanhour,9whathadjusthappened.HowdidImakesuchalife-changingdifferencetothatboywithout10knowingit?WhatIfinallycameto11wasoneday,severalmonthsbefore,whensomestudentswere12reportsinthefrontoftheclass,Jeannespoke13,andtoencouragehertoraisehervoice,Lhadsai,“Speakup.Simon’stheexpertonthis.Heisthe14oneyouhavetoconvince,andhecan’thearyouinthe15oftheroom.”Thatwasit.Fromthatdayon,Simonhadsatupstraighter,paidmoreattention,16more,andbecamehappy.Anditwasallbecausehe17tobethelastkidinthelastrow.Theboywhomostneeded18wastheonewhotookthelastseatthatday.Ittaughtmethemost19lessonovertheyearsofmyteachingcareer,andI’mthankfulthatitcame20andpositively.Asmallkindnesscanindeedmakeadifference.1、A．cleaner B．reporter C．monitor D．teacher2、A．Or B．And C．But D．So3、A．courage B．a(chǎn)bilities C．feelings D．dream4、A．desperate B．responsible C．unprepared D．unsuitable5、A．Becauseof B．Inspiteof C．Apartfrom D．Asfor6、A．loved B．envied C．pleased D．criticized7、A．gradually B．constantly C．recently D．obviously8、A．self-respect B．self-doubt C．self-pity D．self-defence9、A．imagining B．observing C．wondering D．regretting10、A．a(chǎn)lso B．even C．a(chǎn)lways D．still11、A．expect B．remember C．believe D．a(chǎn)ccept12、A．writing B．reviewing C．editing D．giving13、A．quietly B．repeatedly C．quickly D．firmly14、A．lucky B．lonely C．only D．likely15、A．entrance B．middle C．front D．back16、A．slept B．smiled C．shouted D．quarreled17、A．intended B．pretended C．refused D．happened18、A．change B．praise C．thanks D．visits19、A．difficult B．painful C．valuable D．enjoyable20、A．early B．slowly C．frequently D．occasionally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(dāng)?shù)膯卧~或括號內(nèi)單詞的正確形式。27．（15分）Directions:Afterreadingthepassagebelow,fillintheblankstomakethepassagecoherentandgrammaticallycorrect.Fortheblankswithagivenword,fillineachblankwiththeproperformofthegivenword;fortheotherblanks,useonewordthatbestfitseachblank.Oneofmy1．(memorable)vacationstookplaceonafarm.WhenIwasaboy,myparentsandItraveledfromNewYorkCitytothePennsylvaniacountrysideforaweeklongtasteofrurallife.Westayedinaguesthouseonafarm,2．(join)inthedailyroutinesandeatingmealswiththefarmerandhisfamily.Wegotupearlytoseethecowsasthey3．(milk).Ieventriedmyhandatmilkingone,andthenjoinedthefarmerashereleasedthecowsintothefieldafterward.DecadeslaterIstillhavevividmemoriesofthattripandofexperiencingalifestylesodifferent4．myown.Itmademerealizethevalueofavacation.Tothisday,Iwonder5．thatfarmerevermanagedtoenjoyavacationofhisown.Thereisneveradaywhentheanimalsdon’tneedtobefed.ButIstillthinkofthatfamilytripwhenIplanmyapproachtotakingtimeoffwithmywifeandkids.Vacationsareatimeforrestingandconnecting.Asabankmanager,Ispendmuchofmyworkdayencouragingmycustomerstosavetheirmoney.OneofthereasonsIgiveisthatweshouldallhaveenoughforafamilyvacationeveryyear.Inourbusylives,familyiswhatwe6．besavingourmoneyandtimefor.Formyfamily,ourvacationstartswhenwebeginplanningthetrip.Wetalkaboutdestinationsandourbudgetaheadoftime.Amongthethingswediscuss:Canwesavemoneybyrentingahouseinsteadofspendingsixnightsinahotel?Woulditbebetter7．(buy)groceriesandcookforourselvesratherthaneatouteverynight?8．(involve)thekidsinplanningthevacationmakessurethattheyhaveagreatvacationtoo.Iprefertovisithistoricalsitesandmuseumswhiletheylovetofishandswim.SoIbuildinsomerelaxationtimeforusall9．thevacationcanworkforeveryone.Eachyear,settingasidevacationtimetospendtogetherisespeciallyimportanttous.ThisistheoneweekayearIdon’tcarewhethermykidscleantheirroomordothedishes.10．mattersthatweekisthateveryoneishavingagreattime.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）假如英語課上老師要求同桌之間交換修改作文，請你修改你同桌的以下作文，文中共有10處語言錯誤，每句中最多有兩處。每處錯誤僅涉及一個單詞的增加，刪除或修改。增加:在缺詞處加一個漏字符號(/\),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、每處錯誤及其修改均僅限一詞:2、只允許修改10處，多者(從第11處起)不計分。JourneytothewestareaverypopularmasterworkamongChinesepeople、ItisafantasticstorysettingintheTangDynasty、Whenopeningthebook,you’llreadaexcitingstorythatTangsengandhisthreecompanionswentthroughadventurousexperiencetogetthescriptures、Theymadealongandhardjourneywestwardsandmetalotdifficulties、ButtheMonkeyKing,alsocalledSunwukong,whomanagedtofightagainstallkindsofghosts、However,theMonkeyKingasasymbolofbeingbraveanddeterminedisdeeplovedbyusChinese、Thestoryisveryamazingthatitisreallyworthreading、AndyoucouldlearnmoreaboutChineseculturefromthebook、第二節(jié)書面表達（滿分25分）29．（25分）假定你是李華，你的美國朋友Mike在中國做交流生，你校將舉行中華文化節(jié)（ChineseCultureFestival），現(xiàn)請你給他寫封郵件介紹此次活動，內(nèi)容包括：1.目的（弘揚中國文化）；2.形式（古典文學(xué)賞析講座、詩詞朗誦比賽、書法展覽等）；3.邀請參加。注意：1.詞數(shù)100左右；2.可以適當(dāng)增加細(xì)節(jié)，以使行文流暢。書法calligraphyDearMike,___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________YoursfaithfullyLiHua

參考答案第一部分（共20小題，每小題1.5分，滿分30分）1、A2、B3、C4、B5、B6、B7、C8、D9、C10、A11、B12、D13、D14、A15、B16、C17、C18、A19、C20、B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、D3、C4、B22、1、C2、D3、B4、D23、1、B2、C3、B24、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-do