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2025屆四川省成都經(jīng)濟(jì)技術(shù)開發(fā)區(qū)實(shí)驗(yàn)中學(xué)校英語高三上期末達(dá)標(biāo)檢測(cè)模擬試題注意事項(xiàng):1.答題前,考生先將自己的姓名、準(zhǔn)考證號(hào)填寫清楚,將條形碼準(zhǔn)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(qǐng)按照題號(hào)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(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.—Howcouldtheymisunderstandmelikethat?—Justkeepsilent!It’sthebestwaytoletthemknowtheyyouwrong.A.do B.didC.a(chǎn)redoing D.haddone2.Asisknown,onlyhardleadstohappiness.A.workB.worksC.workedD.working3.Sofar,morethan1300hotelsinEurope,Africa,MiddleEastregionhavecommittedto_________intheevent,withmanymore________tojointheeffort.A.participating;expecting B.participate;toexpectC.participating;expected D.participate;tobeexpected4.Itwasannouncedthatonlyafterthecandidates’paperswerecollected_____toleavetheroom.A.hadtheybeenpermittedB.wouldtheybepermittedC.thattheywouldbepermittedD.thattheyhadbeenpermitted5.Davewasa________.Becauseofhismisconductinclass,thewholeclasshadtostayafterschool.A.wetblanketB.leadinglightC.blacksheepD.darkhorse6.—AreyoustillthinkingabouttheemailTonysentyouyesterday?—Oh,totellthetruth,that’smakesmefeelexcited.A.What B.how C.that D.why7.—Ineedtoadvertiseforaroommatefornextterm.—________?Maryisinterested.A.Whybother B.WhynotC.Sowhat D.Whatfor8.—DoyouknowLindawasfiredforhercasualattitudetowardsthejob?—Nowondershe_________whenItriedtoamuseherthismorning.A.wastickledpink B.pulledmylegC.gavemethecoldshoulder D.sawthehandwritingonthewall9.Rogertrainedhardforthetournamentformonths,butunfortunatelyhehadto_______duetoakneeinjury.A.pulloutB.workoutC.tryoutD.giveout10.Somepeopleareabletomultitaskwell—theycantwoormorebusinessesatthesametimeverywell.A.turntoB.relatetoC.leadtoD.a(chǎn)ttendto11.Thepresidentstoodbyawindowinsidetheroom,________Ientered,lookingoverthesquare.A.where B.intowhichC.which D.that12.Youshouldfirstexploreyourtalentsandgettoknowyourselfsoastomakealistof_________youthinkyourrealinterestslie.A.thatB.whatC.whereD.how13.WhenIsaidsomeonebroketheschoolregulations,I______you.Whydidyougetthatangry?A.don’treferto B.haven’treferredto C.wasn’treferringto D.hadn’treferredto14.TherearelotsofexamplesofEnglishidioms________animalsareused.A.which B.whenC.whose D.where15.Idecidedtodoarandomactofkindnesslastyear.And______thatthepersonIwouldenduphelpingmostwouldbemyself.A.Ilittleknew B.littledidIknew C.littledidIknow D.littleIknew16.—Whatdoyouthinkofyourpreparationsforthefinalexams?—Notsogood.ActuallyIfeellike______forI’vemadelittleprogressinMaths.A.Danielinthelion’sden B.Achilles’heelC.a(chǎn)goodSamaritan D.a(chǎn)sacredcow17.—Whatdidyousayyouwerereluctanttoriskjustnow?—_________tohighlevelsofradiation.A.Beingexposed B.HavingbeenexposedC.Tobeexposed D.Exposed18.Sitdown,Emma.Youwillonlymakeyourselfmoretired,onyoufeet.A.tokeep B.keeping C.havingkept D.tohavekept19.—Whynotbuyasecond-handcarfirstifyoudon’thaveenoughmoneyforanewone?—That’sagood________.A.saying B.questionC.a(chǎn)ccount D.suggestion20.He______itonschedule,butsomehowhefellbehind.A.musthavedone B.mightfinishC.couldhavefinished D.couldfinish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)Sometimesyoumayhaveastrongdesiretodosomethingstrangeorterrible.However,chancesarethatyoudon’tactonyourimpulse(沖動(dòng)),butletitpassinstead.Youknowthattotaketheactioniswronginsomewayandthatotherpeoplewillnotacceptyourbehavior.Perhapsthemostinterestingthingaboutthephenomenonoftaboobehaviorishowitcanchangeovertheyears,howcertainbehaviorandattitudesonceconsideredtaboocanbecomeperfectlyacceptableandnaturalatanotherpointintime.Topicssuchasdeath,forexample,wereonceconsideredsoupsettingthatitwasatabootoeventalkaboutthem.NowwiththepublicationofimportantbookssuchasOnDeathandDyingandLearningtoSayGoodbye,peoplehavebecomemoreawareoftheimportanceofexpressingfeelingsaboutdeathand,asaresult,aremorewillingtotalkaboutthistaboosubject.Oneofthenewesttaboosisthetopicoffat.Unlikemanyothertaboos,fatisatopicthatpeopletalkaboutconstantly.It’snottaboototalkaboutfat;it’stabootobefat.The“in”lookisthin,notfat.Intheworkworld,mostcompaniespreferyouthful-looking,slimmanagertoselltheirimageaswellastheirproductstothepublic.Thethinlookisassociatedwithyouth,vigor,andsuccess.Thefatperson,ontheotherhand,isthoughtofaslazyandlackinginenergy,self-disciplineandself-respect.Afterall,howcanpeoplepermitthemselvestobecomefat?Inanimage-conscioussociety,thinis‘‘in”,fatis“out”.It’snotsurprisingthatmillionsofpeoplehavebecomeobsessed(著迷)withstayingslimand“inshape”.Thepursuitofayouthfulphysicalappearanceisnot,however,theonlyreasonforpeople’sobsessionwithdietandexercise.Recentresearchhasshowntheimportanceofdietandexerciseforpersonalhealth.Asinmosttechnologicallydevelopednations,thelife-styleofpeoplehaschangedsincelastcentury.Modernmachinesdoallthephysicallabor.Carsandbusestransportusquicklyfrompointtopoint.Asaresultofinactivityanddisuse,people’sbodiescaneasilybecomeweak.Inanefforttoavoidsuchafate(命運(yùn)),millionsofpeoplearespendingmoreoftheirtimeexercising.Parksarefilledwithjoggersandbicyclists,andmanycompaniesareprovidingspecialexerciseequipmentfortheiremployeestouseduringtheworkday.1、Whatdoestheword“taboo’’refertointhepassage?A.Acrimecommittedonimpulse.B.Anunfavorableimpressionleftonotherpeople.C.Astrongdesiretodosomethingstrangeorterrible.D.Behaviorconsideredunacceptabletothesociety.2、Whatdoestheunderlinedphrase“in”lookprobablymean?A.Thefashionablelook. B.Thehiddenlook.C.Theusuallook. D.Theinsidelook.3、Accordingtothepassage,thecommonbeliefisthat.A.fatpeoplearefullofenergyB.thinpeoplearemoresuccessfulC.fatpeopleprefertohavefatbossesD.thinpeoplearelessimage-conscious4、Peoplepaymoreattentiontodietandexercisebecauseof.A.theirneedtokilltime B.theirloveforsportsC.theirconcernforhealth D.theirbeliefinhardwork22.(8分)LocatedinTimesSquareandtheBroadwaytheatredistrict,thishoteloffersfreecoffee,teaandhotchocolate.Continentalbreakfastisprovided.Aflat—screensatelliteTVwithHBOisincludedineveryroomatEconoLodgeTimesSquare.Asafetydepositboxandadeskareprovided,andfreelocalandlongdistancecallstotheUSandCanadaareoffered.The50thStreetundergroundstationis3blocksfromtheEconoLodgeTimesSquare.RockefellerCenterandtheMuseumofModernArtarea5-minutewalkfromthehotel.Hell’sKitchenisagreatchoicefortravellersinterestedinsightseeing,shoppingandtheatre.ThisisourguestsfavouritepartofNewYork,accordingtoindependentreviews.ThispropertyisalsoratedforthebestvalueinNewYork!Guestsaregettingmorefortheirmoneywhencomparedtootherpropertiesinthiscity.Wespeakyourlanguage!Mostpopularfacilities:FreeWiFi,Parking,Non-smokingrooms,Facilitiesfordisabledguests,Dailymaidservice.GoodtoknowCheck-in15:00-00:00hoursCheck-outUntil12:00hoursCancellation/prepaymentCancellationandprepaymentpoliciesvaryaccordingtoroomtype.PleaseenterthedatesofyourstayandchecktheconditionsofyourrequiredroomChildrenandextrabedsAllchildrenarewelcome.Free!Uptothreechildrenunder5yearsstayfreeofchargewhenusingexistingbeds.Thereisnocapacityforextrabedsintheroom.Travellingwithpets?Petsarenotallowed.GroupWhenbookingmorethan4rooms,differentpoliciesandadditionalsupplementsmayapply.Address:302West47thStreet,Hell’sKitchen,NewYork,NY10036,USAreservations@econolodgetimessquaremTel:(212)2461991WelcometothebrandnewEconoLodge
?TimesSquare1、WhatisthebestchoiceifyougotoRockefellerCenterfromthehotel?A.Onfoot.B.Bysubway.C.Bytaxi.D.Bytrain.2、Whichofthefollowingisn’tfreeinEconoLodgeTimesSquare?A.WiFi.B.Parking.C.Alllongdistancecalls.D.Coffee,teaandhotchocolate.3、Whatcanbelearntfromthepassage?A.Thebesttimetoliveinthehotelis3:00am.B.Allchildrenunder5yearsstayfreeofcharge.C.Thecancellationpoliciesofeachroominthehotelarethesame.D.Customersfromallovertheworldhavenodifficultycommunicatingwiththehotel.23.(8分)Spidermonkeyshavelong,thinarmswithhook-likehandsthatallowthemtoswingthroughthetrees.Theydonothaveopposablethumbs(對(duì)生拇指).Thebrown-headedspidermonkeyhasaprehensile(纏繞性的)tail,whichmeansitcangraspandcanbeusedlikeafifthlegtograbtrees.Duringtheday,thespidermonkeysearchesforfruits,whichmakeupthemainpartofitsdiet.Theywillalsoeatflowers,seeds,leaves,andsmallinsectsduringthedryseasonwhenfruitsaren’tavailable.Theyspendmostofthedaylighthoursclimbingandswingingthroughthehighbranchesoftrees.Thebrown-headedspidermonkeylivesinalargecommunityofabout20to100maleandfemalemonkeys.Theysplitintosmallergroupsforfeeding.Femalesusuallygivebirthtoonlyasinglebabyeachyearortwo.Youngmonkeysarecarriedontheirmothers’stomachsuntilabout16weeksold.Thentheyarestrongenoughtorideontheirmothers,backs.Allbrown-headedspidermonkeybabiesarebornwithpinkfacesandears.Spidermonkeyshugeachotherandwraptheirtailsaroundeachother.Theyareveryintelligentandhavestrongmemories.Theywerenamedspidermonkeysbecausetheylooklikespidersastheyhangupsidedownfromtheirtailswiththeirarmsandlegsswinging.Theirgenus(屬)nameisAteles,whichmeans“imperfect”.Thisreferstothefactthattheydon’thavethumbs.Huntingthebrown-headedspidermonkeyisnowbarredinEcuador,acountryinnorthwesternSouthAmerica,buthumanshavekilledthemfortheirmeatforhundredsofyears.1、Spidermonkeyslivemostlyon.A.insectsB.fruitsC.flowersD.leaves2、Whatcanwelearnaboutspidermonkeys?A.Theyhavefivelegs.B.Theyliveinsmallgroups.C.Theirtailscantaketheirweight.D.Theirgenusisthesameasspiders.3、Whatdoestheunderlinedword“barred”inthelastparagraphreferto?A.Permitted.B.Forbidden.C.Encouraged.D.Ignored.4、Wheredonewly-bornspidermonkeysstay?A.Inalargecommunity.B.Intreeswithhighbranches.C.Ontheirmothers’backs.D.Ontheirmothers’stomachs.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(jiǎn)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.Howtotakeaplane25.(10分)DowomenmakeBETTERastronauts?Russialocksanall-femalecrewinspacesimulator(太空模擬器)foreightdaystofindout.SixRussianwomenhavebeensentintoaspaceshiptobeginauniqueexperimenttestinghowanall-femalecrewwouldrelatetoothersonatriptotheMoonandback.“It’sinterestingforustoseewhatisspecialaboutthewayafemalecrewcommunicates,”saidSergeiPonomaryov,theexperiment’sleader.“itwillbeparticularlyinterestingintermsofpsychology,”saidtheinstitute’sdirectorIgorUshakov.“I’dliketowishyoualackofconflicts,eventhoughtheysaythatinonekitchen,twohousewivesfindithardtolivetogether,”headded.Thevolunteersincludescientificresearchers,adoctorandapsychologist.Thetestperiodsimulates(模仿)aflighttotheMoonandback,withthewomencarryingout10experimentscoveringpsychologyandhumanbiology.Russiasentthefirstwomanintospace,ValentinaTereshkova,in1963buthasfallenbehindsince.Lastyear,itsentitsfourthfemaleastronautintospace,YelenaSerova.SeravacomplainedofagreatdealofmediainterestinhowshewouldwashherhairaboardtheInternationalSpaceStation,pointingoutthatmaleastronautsdidnotfacethesamelineofquestioning.Thewomenfoundthemselvesfieldingquestionsatapressconferenceabouthowtheywouldactwithoutmenormakeupforeightdays,“Weareverybeautifulwithoutmakeup,”saidparticipantDaryaKomissarova.HercolleagueAnnaKussmaulwasmoredirect:“Wearedoingwork.Whenyou’redoingyourwork,youdon’tthinkaboutmenandwomen.”Theyplantospendtheir11/2hoursperdayoffreetimewatchingfilms,readingandplayingboardgames.TeamleaderYelenaLuchnitskayasaidsheexpectedthewomentodealwithanyconflict.1、Inwhichcolumncanyoufindthispassageonawebsite?A.Education. B.Entertainment.C.Science. D.Economy.2、What’sthepurposeoftheexperiment?A.Toshowthatwomencandobetterthanmen.B.Totestwhetherwomencanbegoodastronauts.C.Togatherinformationabouttheconditionsinspace.D.Tomeasurethedistancefromtheearthtothemoon.3、WhatdoweknowfromwhatIgorUshakovsaid?A.Womencannotlivepeacefullyinspaceatall.B.Theremaybeconflictsamongthewomenastronauts.C.Thefemalecrewwilldealwitheachotherinanewway.D.Beinginthesamekitchenhelpsthewomenlivetogether.4、Whichofthefollowingwasoncesentintospace?A.SergeiPonomarev. B.DaryaKomissarova.C.AnnaKussmaul. D.ValentinaTereshkova.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)Inthe60s,peopleaskedaboutyourastrological(aboutstar)sign.Inthe90s,theywanttoknowyourwebsite.3401.Yourwebsiteisanelectronicmeetingplaceforyourfamily,friendsandpotentially,millionsofpeoplearoundtheworld.Bestofall,youmaynothavetospendacent.TheWebisfilledwithallkindsoffreeservicesandallittakesissometimeandcreativity.1、Likethetableofcontentsofabookormagazine,thehomepageisthefrontdoor.Yoursitecanhaveoneormorepages,dependingonhowyoudesignit.Whilewebpagesvarygreatlyintheirdesignandcontent,mostuseatraditionalmagazinelayout(版面設(shè)計(jì)).Atthetopofthepageisabanner(橫幅)GRAPHIC.Nextcomesagreetingandshortdescriptionofthesite.Pictures,text,andlinkstootherwebsitesfollow.2、Thinkaboutwhomthesiteisforandwhatyouwanttosay.Next,gatherupthematerialthatyouwanttoputonthesite.Whiletherearenorulesyouhavetofollow,thereareafewthingstokeepinmind:3404.Ifyouwanttoomuchatthebeginning,youmaynevergetthesiteofftheground.Youcanalwaysaddtoyoursite.Lessisbetter.Mostpeopledon’tliketoreadalotoflongtextsonline.3405.Smallerisbetter.Sinceitcantakealongtimetodownloadlargefiles,keepthefilesizessmall.Havetherights.Don’tputanymaterialonyoursiteunlessyouaresureyoucandoitlegally.Alwaysremembertogetthepermissionfromthewriterfirst.Nowit’stimetorollupyoursleevesandstartbuilding.A.Startsimply.B.Breakitintosmallpieces.C.Drawaroughlayoutonasheetofpaper.D.Manywebsitesareconsideredveryinteresting.E.Beforeyoustartbuildingyoursite,dosomeplanning.F.Thinkofyourhomepageasthestartingpointofyourwebsite.G.Thesedays,havingawebaddressisalmostasimportantasastreetaddress.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)Asweallknow,wearewhatweeat.That’sbecausewhatweeateverydayhas1.greateffectonourhealth.Therefore,weshouldmakeeveryeffort2.(change)ourbadeatinghabits.Althoughbakedorfriedfoodsmaybe3.(taste),eatingtoomuchofthemwill4.(probable)resultinsomeillnesses.5.,somefoodthatcostsusagreatdealofmoneyandisnothealthyisjunkfood.ComparedwithpeopleintheWest,Chinesepeopleusedtoeatmoregrainandvegetables,but6.(little)meat,whichisagoodeatinghabit.However,thingsarequitedifferentnow.Withtherapideconomic7.(grow)ofourcountry,wenowalsoeatalotoffoodthatishighinsugarandfat.We8.(run)theriskeatingoutwithoutconsideringthebalanceofourdiet.Thefoodwechooseaffectsourhealth,sowemustkeep9.mindthatthefoodwechooseshouldgive10.(we)thenutrientsweneed.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(qǐng)你修改你同桌寫的以下作文。文中共有10處錯(cuò)誤,每句中最多有兩處。錯(cuò)誤涉及一個(gè)單詞的增加、刪除或修改。增加:在缺詞處加一個(gè)漏詞符號(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)的詞下畫一橫線,并在該詞下面寫出修改后的詞。注意:1.每處錯(cuò)誤及其修改均僅限一詞;2.只允許修改10處,多者(從第11處起)不計(jì)分。Iamgladtohearofyouagain.Youwanttoknowthateverythingisgoinginourschool.Inshortly,allisimproving.Inthepast,teachershadalwayskeptonexplainingthepointsinclass.Ourstudentsjustlistenedandtooknote.Butnowweoftendiscussandtrytosolvetheproblemsraisingbytheteachersorourselves.Beforeclass,weenjoydifferentkindsofactivitiesinsteadofdoingendlesshomework.Forexample,wecanreadwhatweareinterestedin.WecangotothelibraryorsurfInternetforvariouskindsofinformation.Wearenowmastersofstudy,butwearehappy.第二節(jié)書面表達(dá)(滿分25分)29.(25分)假定你是李華,你的英國(guó)好友Tom在中央電視臺(tái)主辦的漢字拼寫大賽中獲一等獎(jiǎng)。請(qǐng)你給他寫一封信。內(nèi)容包括:1.表示祝賀;2.請(qǐng)他介紹經(jīng)驗(yàn);3.盼復(fù)。注意:1.詞數(shù)100左右;2.可以適當(dāng)增加細(xì)節(jié),以適行文連貫。DearTom,___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________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、B2、D3、C4、B5、C6、A7、A8、C9、A10、D11、C12、C13、C14、D15、C16、B17、A18、B19、D20、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(gè)選項(xiàng)中,選出最佳選項(xiàng)。21、1、D2、A3、B4、C22、1、A2、C3、D23、1、B2、C3、B4、D24、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,andevenodditemslikethemillion-dollartoolkitthatastronautHeidemarieStefanyshynPiperlostduringaspacewalk.Themajorproble
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