河南省新乡市2025届高三第三次测评英语试卷含解析

河南省新乡市2025届高三第三次测评英语试卷注意事项：1．答题前，考生先将自己的姓名、准考证号填写清楚，将条形码准确粘贴在考生信息条形码粘贴区。2．选择题必须使用2B铅笔填涂；非选择题必须使用0．5毫米黑色字迹的签字笔书写，字体工整、笔迹清楚。3．请按照题号顺序在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、试题卷上答题无效。4．保持卡面清洁，不要折叠，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．Thetoughestthingaboutsuccessis________youhavetokeeponbeingasuccess.A．why B．when C．what D．that2．---Areyousatisfiedwithhisschoolreport?---Notatall.Itcouldn’thavebeen______.A．worseB．sobadC．betterD．theworst3．TheU.S.officialsaidNorthKorea---andIran---shouldfollowinthestepsofLibya,whichlastDecembersaiditwouldwork__________toallowinternationalweaponsinspectorstodotheirwork.A．unconditionally B．unwillingly C．unfortunately D．uncomfortably4．Thesteamboatwasfullyfurnishedwithlifepreservers.Thepassengersmightbesaved__________accidents.A．inspiteof B．insteadofC．incaseof D．inplaceof5．Themapletreesturnabrilliantredinautumn,addinganothertothecolorsintheharvestseason.A．theme B．versionC．category D．dimension6．DuringeachNBAseason,basketballfanscheerontheirfavoriteteamstomake_______through.A．itB．themC．thatD．those7．Cambridgegaveapositiveanswerinquiriesonwhetheritrecognizesgaokaoscores.A．infavorof B．inresponsetoC．insaluteto D．inconsequenceof8．Ourcompanyisseekingforamanager,especially________withcreativityandimagination.A．theone B．eachC．one D．that9．IbrokemyrelationshipwithPeterbecausehealwaysfound_______withme.A．errorB．failureC．mistakeD．fault10．Daviddidn’tattendhisdaughter’sgraduationceremony,buthedoeswishhethere.A．shouldbe B．wouldbeC．hadbeen D．were11．We

need

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thistruth:ifyouchoosetofindthe

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ineverysituation,youwillbeblessed,andifyouchoosetofindtheawful,youwillbecursed.Aswithhappinessitself,thisis

________yourdecisiontomake.A．absolutelyB．totallyC．exactlyD．largely12．Iwasillthatday,otherwiseI_______thesportsmeet.A．tookpartin B．wouldhavetakenpartinC．hadtakenpartin D．wouldtakepartin13．—When______leaveforJapan?—When______leaveforJapaniskeptsecret.”A．theywill,willthey B．willthey,theywillC．theywill,theywill D．willthey,willthey14．Whenyouareabsorbedinabookorsimplytryingtorest,itseemsthatthephone______continuously,destroyingyourmomentarypeace.A．rings B．hasbeenringing C．rang D．isringing15．—You’vemadegreatprogressinyourEnglishstudy,haven’tyou?—Yes,butmuch.A．remainstodo B．isremainedtodoC．remainstobedone D．isremainedtobedone16．Itisonethingtoenjoylisteningtogoodmusic,butitisquite______toperformskillfullyyourself.A．another B．other C．theother D．others17．Thepicturelooksgood____thewhitewall.A．with B．to C．against D．beyond18．Thatchildren______meetwithsetbacksisamatterofnecessityasthey_____,soparentsdon’tworryaboutthat.A．shall;grewup B．must；grewup C．can;growup D．will;growup19．I______forShanghaithisSaturday,soIwanttoknowwhentheearliestplane______.A．leave;takesoffB．amleaving;takesoffC．leave;istakingoffD．amleaving;istakingoff20．Thegovernmentplaced_____onthenumbersofforeigncarsthatcouldbeimported.A．limitations B．administrationC．requirements D．restrictions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）Here'salistofbooksI'mlookingforwardtothisfallseason.Notallofthemwillrisetotheleveloftheadvertisement,butit'sanabundantcrop."HomeAfterDark"byDavidSmall(Liveright,Sept.11)In2009,Smallpublishedacelebratedgraphicmemoir(回忆录)called"Stitches".NowtheCaldecottMedalwinnerisbackwithagraphicnovelaboutamotherless13-year-oldboybroughtupinanunhappyhomeinCalifornia.Thisisataletoldinfewwordsandmanystrikingimages.OnSept.11at3p.m.,SmallwillbeatAmazonbooksatUnionMarket.Moreinformationatwww./graph-tale."WaitingforEden"byElliotAckerman(Knopf,Sept.25)ThisbriefnovelisrelatedbyadeadsoldierwhoiswatchingoverahorriblyburnedpartnerinaTexashospital.Thatsoundsembarrassinglyemotional,butAckerman,whoservedinaNavyinIraqandAfghanistan,isoneofthebestsoldier-writersofhisgeneration.Moreinformationatwww.amazon.com/military-essay."AllYouCanEverKnow"byNicoleChung(Catapult,Oct.2)Chung,theeditoroftheliterarymagazineCatapult,wasadoptedasababybyawhitefamilyinOregon.Inthismemoir,shewritesaboutherchildhood,herAsianAmericanidentityandhersearchfortheKoreanparentswhogaveherup.Moreinformationatwww.amazon.com/politics-prose."Unsheltered"byBarbaraKingsolver(Harper,Oct.16)Alternatingbetweenpastandpresent,thisnoveltellsthestoryofawomaninvestigatingalate-19th-centuryscienceteacherwhowascaughtupinthecontroversyoverDarwinism.Likeherothernovels,thisonepromisestoexploresocialandscientificproblems.Visitwww.amazon.com/tech-scienceformoreinformation.1、Ifyouhopeforasignatureoftheauthor,youwillprobablybuyacopyof________.A．AllYouCanEverKnowB．WaitingforEdenC．HomeAfterDarkD．Unsheltered2、WhojoinedthearmyandwassenttotheMiddleEast?A．ElliotAckerman.B．DavidSmall.C．BarbaraKingsolver.D．NicoleChung.3、Ifyouwanttoreadbooksaboutnon-fiction,youcansurf________.A．www.amazon.com/graph-taleB．www.amazon.com/politics-proseC．www.amazon.com/military-essayD．www.amazon.com/tech-science22．（8分）Googleannouncednewfeaturestomakedevicessmarterandmoreusefultoopenitsyearlydevelopers'conference.TheannouncementscameatGoogle'sI/O2018conferenceinMountainView,California.GoogleDuplex"Sowhatyou'regoingtohearistheGoogleAssistantactuallycallingarealbarber’stoscheduletheappointmentforyou.Hello,howcanIhelpyou?Hi,I'mcallingtobookawoman'shaircutforaclient.I'mlookingforsomethingonMay3rd.Sure,givemeonesecond.Mm-hmmm.Thatwasarealcallyoujustheard."GoogleChiefPichaisaidthedemonstrationwastheresultofthecompany'sresearchanddevelopmentovermanyyearsintheareasofnaturallanguage,deeplearningandtext-to-speech.GooglecallsthetechnologyDuplex.Theideaistocreatemachinesthatsoundandactmorehuman-likeininteractionswithpeople.ContinuedConversationAnothernewfeaturerelatedtoAssistantiscalledContinuedConversation.Untilnow,usershavehadtosay"HeyGoogle"eachtimetheyaskedaquestionorwantedhelp.Butnow,ausercanissuemorethanonecommand–suchasafollow-upquestion–foruptoeightseconds,andAssistantwillanswer.GmailSmartComposeThelatestnewtoolforGmailisanauto-completefeaturecalledSmartCompose.ItusesAItosuggestwaystofinishsentencesastheyarewritten.Forexample,"Ihaven'tseenyou"mightbeauto-completedto"Ihaven'tseenyouinawhileandIhopeyou'redoingwell."DigitalWellbeingGooglesaysitrecognizesmanyusersaretryingtofindtherightbalanceinlifewithtechnology.Sometimestheywouldliketobreakawayfromtheirdevicestobeabletospendtime"onbetterthings."Newfeatureswiththisinmindcanhelpuserspreventoveruseoftechnology.ADashboardwillprovideusersdetailedinformationabouthowmuchtimetheyarespendingonwhichpartsoftheirdevice.Whenthedeviceisplacedfacedown,anewfeaturewillputthedeviceonholdandsilenceitsotheusercancenteronotherthings.AWindDownModefeaturecanletusersenterthetimetheywanttogotobed.Atthattime,thedevicewillagaingosilentandthefrontofthedevicewilldimtohelpusersdisconnectbeforebed.1、WhatdoesthesmalldialoguemeaninGoogleDuplex?A．GoogleChiefPichaicallshisassistanttoarrangeanappointmentforhim.B．Google’sdigitalassistantsetsahaircutappointmentforsomeoneallbyitself.C．AnassistantinGooglesetsahaircutappointmentforawoman.D．Thatwasn’tarealcallthereceiverhadheard.2、WhatcanwelearnaboutDigitalWellbeing?A．Itcanfindtherightbalanceinwork.B．Itmayautomaticallygosilentwhilethescreenisstillbright.C．Itcantellhowmuchtimeisbeingspentonpartsofthedevice.D．Whenonefeatureisoperatinglongenough,anewonewilldisappear.3、Ifyouarepoorinwritingcompositions,youprobablylike________.A．ContinuedConversationB．GoogleMaps-AugmentedRealityC．GoogleDuplexD．GmailSmartCompose23．（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）Thatcompetitionkeepspricesdowniswellknown.Butitishardtomeasurebyjusthowmuch,becausepricesvaryforallsortsofreasons,fromdifferencesinlabourcostsandrentstotaxes.RisingtothechallengeisanewpaperinTheEconomicJournalbyGiacomoCalzolari,AndreaIchino,FrancescoManaresiandVikiNellas,economistsattheEuropeanUniversityInstitute,BolognaUniversityandtheItaliancentralbank.Theylookedatpharmacies(药房)andspecificallyatcustomerswhomaybeparticularlyeasytoripoff:newparents.Usingdatafor2007to2010coveringaboutafifthofpharmaciesinItaly,theresearchersmeasuredthewayinwhichpricesofhygieneproductsforbabieschangedasthenumberofbabiesvaried.Theytookadvantageofapeculiarlawfromthe1960s,accordingtowhichregionswithatmost7,500peopleareallowedjustonepharmacy(supposedlytokeepthequalityofserviceshigh).Theycomparedpricesinplaceswithpopulationsjustbelowthisthreshold,andjustabove.Theproductsstudiedincludedsome3,000varietiesofshampoos,bathfoams,babywipes,creamsandsoon.Manyarealsousedbyadultsonthemselves.Somepeople,forexample,prefersun-creamlabeled“forchildren”becauseofitshighlevelofprotection.Whenraisingpricesfortheseproducts,evenapharmacistwithamonopoly(垄断)mustconsidertheriskthatadultuserswillswitchtoproductsthatarenotaimedatchildren.Butariseinthenumberofbabies,andhencebuyerswhoareparents,couldtipthescalestowardspriceincreases.Bycontrast,thepharmacistshouldalreadybechargingasmuchasparentsarewillingtopayforproductswithoutadultusers,suchasnappies.Thescholarsfoundthatpharmacistsraisedpriceswhenthereweremorenewparents----butonlyinregionswithasinglepharmacy,andnotfornappies.Inmonopolyareasadoublingofthenumberofbabiesfromonemonthtothenext(notunusualinasmallpopulation)coincidedwitha5%increaseinthepriceofthebasketofbaby-hygieneproducts.Thestudyistimely.Italy’sgovernmenthasstartedtoloosensomeofthemanyrestrictionsthatstopcompetitioninthepharmacysector(thoughnotyettheonethattheresearchersreliedon).Butsuchregulationsareplentifulinmanyotherlinesofbusiness,andnotjustinItaly.Theconsumerswhopaythepriceareoftenthosewhofindithardesttotraveltoshoparound----forexample,peoplewithcryingbabiesontheirhands.1、What’sthepurposeofthestudy?A．Toreviewthefunctionofthespeciallawforpharmacies.B．Tomakecleartherelationbetweencompetitionandprices.C．TocollecttheinformationonpharmacybusinessinItaly.D．TogatherthedataonhygieneproductsforbabiesinItaly.2、“tipthescales”inParagraph3means“_____”.A．Pushthemove B．KeepthelevelC．Controltherise D．Breakthebalance3、Thegovernment’snewmeasureswillgreatlybenefit_____.A．pharmacyowners B．localmerchantsC．newparents D．adultusers25．（10分）Haveyoueverthoughtofquittingyourjobwhenyoufeelexhausted?Maybemostofyouwouldsay“yes”.Afteraparticularlybusyperiodatwork,IdecidedtogetawayfromitallbygoingonahikeinthemountainsinsouthernFrance.BeforeIleft,Ireadaninterestingstoryinamagazine.Itread,“Once,whileIwasridingonacrowdedbus,themansittingnexttomethrewhiscellphoneoutofthewindowwhenhisphonerang.Iwassurprised.Helookedatme,shrugged(耸耸肩)andlookedaway.Ihadnoideawhetheritwashisorstolenorwhetherheevenknewwhatacellphonewasornot,butheclearlywantedtobefreeofit,becauseitclearlytroubledhim.”Billionsofpeopleacrosstheworldusecellphones.Thoughcellphonesareawonderfulwayforcommunication,theyoftendotheexactopposite.Usingcellphonescanincreasestresswithinfamiliesandfriends.SowhenIrecentlyreturnedhome,Igotridofmycellphone.NowIgooutsidewithouttakingmyphonewithme.I’venoticedthingsinmyneighborhoodInevernoticedbefore,suchasgardens.I’vemetnewpeople,startedconversationswithneighborsIdidn’tspeaktobeforeandtalkedwithsomeofmyfriendsfacetofaceinsteadofchattingoverthephone.Insteadofkeepingmeofffromtheworld,stoppingusingmycellphonehashelpedmegetevenclosertomyfamilyandfriends.1、Accordingtothestory,themanonthebusthrewawayhiscellphonebecause.A．itdidn’tworkproperly B．itwasstolenfromsomeoneelseC．hedidn’tlikethephone’sstyle D．hedidn’twanttobebotheredbyit2、Wecanlearnfromthepassagethatcellphones.A．aretooexpensiveformanypeopleB．areofnousetotheauthorC．canalsogetpeopleintotroubleD．canmakelifemoreinteresting3、Whatcanwelearnabouttheauthor?A．Hewantstoownagardennow.B．Healwayschattedwithhisneighbors.C．Heusedtotakehiscellphonewhengoingoutside.D．Heoncethrewawayhiscellphone.4、Themainpurposeofthepassageisto.A．tellusnottoletcellphonescontrolourlivesB．encourageotherstohikewithhiminFranceC．sharehisexperiencesinFrancewithusD．teachushowtogetalongwithneighbors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）Ihaveforgottenthenameoftheoldlady,whowasacustomeronmynewspaperroute.Yetit1inmymemorythatshetaughtmealessonin2thatIshallneverforget.Onawinterafternoon,afriendandIwere3stonesontotheroofoftheoldlady'shousenearhergarden.The4wastoobservehowthestoneschangedtomissilesasthey5totheroof’sedgeandfellintotheyardlikecomets（彗星）fallingfromthe6Ifoundmyselfaperfectlysmoothrockandthrewit.Thestonewastoo7,however,soitslippedfrommyhandasIletitgoandheadedstraightforasmall8Atthesoundofbrokenglass,weknewwewerein9Weranfasterthananyofourstonesflewoffherroof.Iwastoo10aboutgettingcaughtthatfirstnighttobe11abouttheoldladywiththebrokenwindowinwinter.12,afewdayslater,whenIwassurethatIhadn'tbeendiscovered,Istartedtofeel13forhertrouble.ShestillgreetedmewithasmileeachdaywhenIgaveherthenewspaper,butIwasnolongerabletoact14whenseeingher.IdecidedthatIwouldsavemypaperdeliverymoney,andinthreeweeksIhadthesevendollarsthatIthoughtwould15thecostofherwindowandsentittoherinanenvelope.Thenextday,I16theoldladyherpaper.Shethankedmeforthepaperandgavemeabagofbiscuitsshehadmadeherself.Ithankedherandatethebiscuits17Icontinuedmyroute.Afterseveralcookies,Ifeltanenvelopeandpulleditoutofthe18.WhenIopenedtheenvelope,Iwas19Insidewerethesevendollarsandashortnotethat20,“I'mproudofyou.”1、A．fails B．fades C．impresses D．remains2、A．forgiveness B．value C．honesty D．gratefulness3、A．collecting B．putting C．throwing D．placing4、A．subject B．theme C．topic D．object5、A．shot B．rolled C．got D．dropped6、A．earth B．ocean C．sky D．universe7、A．smooth B．square C．heavy D．beautiful8、A．ceiling B．door C．chimney D．window9、A．danger B．trouble C．surprise D．comfort10、A．scared B．excited C．disappointed D．confused11、A．frightened B．depressed C．puzzled D．concerned12、A．However B．Therefore C．Besides D．Furthermore13、A．honored B．guilty C．pleased D．pressed14、A．proud B．active C．comfortable D．energetic15、A．include B．increase C．cover D．mend16、A．handed B．turned C．passed D．sent17、A．because B．where C．since D．as18、A．paper B．pocket C．bag D．wallet19、A．annoyed B．surprised C．amused D．delighted20、A．attached B．said C．told D．wrote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）Sendinggiftsvariesgreatlyfromcountrytocountry.InAustralia,Canada,theUnitedStates1．Europeancountries,sendinggiftsisrarelyexpected.Whileseenasanicegesture,itismoreimportanttoavoid2．(give)highlypersonalgiftssuchasclothing.Whenvisitingthehomeofacolleaguefromoneofthese3．(country),itisnormallyappropriatetobringagifttothehostess.InAmerica,4．(expense)giftsaredefinitelyout.Agood5．(choose)istotakethedeservingpersontodinner,orto6．entertainmentorasportingevent.7．thecontrary,giftgivingisatraditionalcustominJapan.InJapanthepropergiftisthought8．(express)thegiver'struefriendship,gratitudeandrespectfar9．(well)thanwordscan.SoifyouplantovisitJapanortohaveanyJapanesevisityouhere,beprepared.Australiaisknownforitsfriendlinessandinformality.Somodestgifts,suchasadiary,apaperweight,oracoffeecupmight10．(present)toafriend.Atatradeshow,Tshirts,ties,baseballcaps,orapinmaybeappropriatesouvenirs.Anythingmorethanthesetypesofgiftscouldcauseembarrassment.第四部分写作（共两节）第一节短文改错（满分10分）28．（10分）假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。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。LuYonggen,anacademicianattheChineseAcademyofSciences,hasdonatedlifesavingsof8.8millionsyuantoeducationalcauses.The87-year-oldscientistsayshisachievementswouldnothavebeenpossiblewiththeCommunistPartyofChina,butthatheiswillingtomakehislastcontributiontothecountry.InMarch,Luandhiswifetransferredallthemoneytheysaveditinmorethan10bankaccountstoSouthChinaAgriculturalUniversitytoestablishtheeducationalfundsponsoringpoverty-strickenstudentsandtalentedyoungteachers.Luherselfalsoworkshardinthefieldofricegenetics,climbingmountainsin2001attheageof70tofindwildrice.Duringthepastfiveyears,hefostered33newvarietiesofriceseedswhataregrownonlandcovering600,000hectares.Despiteafamousscientist,Lulivesasimplyandhumblelife,usingbrokenfurnituredatedbacktothe1980sinhishome.第二节书面表达（满分25分）29．（25分）假设你是李华，你的美国笔友Jack正在为即将到来的考试焦虑不已，严重影响了生活和学习，为此写信向你求助。请根据以下要点，用英语给他回一封信。1、制定复习计划，树立信心。2、坚持锻炼身体。3、保持良好睡眠,。注意：词数100词左右。可适当增加细节，使行文连贯。DearJack,____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Yours,LiHua

参考答案第一部分（共20小题，每小题1.5分，满分30分）1、D2、A3、A4、C5、D6、A7、B8、C9、D10、C11、D12、B13、B14、D15、C16、A17、C18、D19、B20、D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、A3、B22、1、B2、C3、D23、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-dollartoolkitthatastron