江苏省连云港市灌南华侨高级中学2025届高三第二次调研英语试卷含解析_第1页
江苏省连云港市灌南华侨高级中学2025届高三第二次调研英语试卷含解析_第2页
江苏省连云港市灌南华侨高级中学2025届高三第二次调研英语试卷含解析_第3页
江苏省连云港市灌南华侨高级中学2025届高三第二次调研英语试卷含解析_第4页
江苏省连云港市灌南华侨高级中学2025届高三第二次调研英语试卷含解析_第5页
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江苏省连云港市灌南华侨高级中学2025届高三第二次调研英语试卷请考生注意:1.请用2B铅笔将选择题答案涂填在答题纸相应位置上,请用0.5毫米及以上黑色字迹的钢笔或签字笔将主观题的答案写在答题纸相应的答题区内。写在试题卷、草稿纸上均无效。2.答题前,认真阅读答题纸上的《注意事项》,按规定答题。第一部分(共20小题,每小题1.5分,满分30分)1.—Doyouoftencomeheretohaveawalk?—No,only_________,becausewearemuchtoobusy.A.occasionallyB.eventuallyC.merelyD.frequently2.Haditnotbeenforhisexperienceintheforest,we____________inthebattlewiththefiercebear.A.hadn'tsurvived B.wouldn'thavesurvivedC.didn'tsurvived D.wouldn'tsurvive3.Itisbeyondawkwardwheneveryonearoundyou______________laughingatajokethatyoudonotfindfunny,especiallyifit’sajoketoldinaforeignlanguage.A.runinto B.burstsoutC.yellsout D.fallsinto4.U.S.PresidentBarackObamaarrivedinChina’seconomiccenterShanghaionSundaynight,November15th2009,______astatevisittoChina.A.starting B.started C.tostart D.havingstarted5.––Isthisteagoodcoldaswell?––______withice,thisteaisespeciallydelicious.A.ServedB.ServingC.HavingservedD.Tobeserved6.Speakingaforeignlanguageallowsyouto________timeinanegotiation,foryoucanactlikeyouhavenotunderstoodtocomeupwithyouranswer.A.save B.afford C.buy D.spend7.Itisobvioustothestudents_____________theyshouldgetwellpreparedfortheirfuture.A.as B.thatC.which D.whether8.IwishI________herthenewsandthenshewouldn’tbeworriednow.A.don’ttell B.didn’ttellC.haven’ttold D.hadn’ttold9.Mr.Zhanggavealltextbookstoallthepupils,except____________whohadalreadytakenthem.A.theseB.onesC.thoseD.theothers10.Nothavingworkedouttheprogram,________leavetheoffice.A.sohewasforbiddentoB.andhedidn’twanttoC.hislittlesoncouldn’tmakehimD.becouldn’tfreehimselfto11.Theprojectisfarbehindschedule.It’simpossibleforyouto______itinaweek.A.catchupon B.liveuptoC.addupto D.holdonto12.Perhapsyou________stopplayingcomputergamesnow.Yourbossmaybeturningupintheofficeatanymoment.A.will B.must C.should D.can13.Accordingtothebankrulesreleasedrecently,youhavetopaya25%________oneachchequeyoucash.A.admission B.pensionC.allowance D.commission14.Jennynearlymissedtheflight_________________doingtoomuchshopping.A.asaresultof B.ontopofC.infrontof D.inneedof15.-I_______inthesamepositiontoolong.Mylegshavefallenasleep.-Shakeitalittlebeforeyougetup.A.willsit B.havesatC.amsitting D.havebeenstting16.Whichofthesedigitalcamerasdoyoulikebest?______.Theyarebothexpensiveandoflittleuse.A.None B.Neither C.Nothing D.Noone17.Tom’scommentsonthisissueareconfusingbecausetheyappearto______theremarksonthesameissuemadeearlierbyhim.A.violateB.induceC.clarifyD.contradict18.—Didyougotolastnight’sconcert?—Yes.Andthegirlplayingtheviolinattheconcert_______allthepeoplepresentwithherexcellentability.A.impressed B.compared C.conveyed D.observed19.____interestedinEnglishmayjointhisclub.A.WhoeverB.AllwhoC.AnyoneD.Who20.Theinfrastructureofacountryis________makeseverythingrunwell,includingthingsliketransport,irrigation,electricityandschools.A.whichB.thatC.whereD.what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)Therearemanydifferentvoicesoncharitydonationsrecently.ChenTianQiao,oneoftheChinesebillionaires,gaveaway$115milliontotheCaliforniaInstituteofTechnology(Caltech)tohelppromotebrainresearch.Chenhasbeeninterestedinthebrainresearch,believingitcanadvancetheindustriesofartificialintelligenceandvirtualreality.However,thishugedonationhascausedheateddiscussionamongChinesescholarsandinternetusers.Manycriticizedhimforgivingmoneytoaforeignuniversityratherthandomesticinstitutesforbrainresearch,whicharedevelopingfastandarecatchingupwiththeUSinjustafewyears.RaoYi,abiologistatPekingUniversity,evensaidthedonationwasatypicalmistake.Others,however,supporthischoice.TheybelieveCaltechisamorereasonablechoicecomparedwithChineseresearchInstitutes.Caltechhasalonghistoryandhastakenaleadingpositioninbiology,andthereforeitproducesmoreefficientresults.What’smore,theresultsoftheresearchwillbenefitnotonlytheAmericans,butalsotherestoftheworld.Asimilarcontroversial(有争议的)casestartedtwoyearsagowhenPanShiYi,chairmanofSOHOChina,donated$15milliontoHarvardUniversitytohelpdisadvantagedChineseStudents.ManybelievethatChinaisstillfarbehindinmanagementanduseofdonatedmoney,andthatasaresult,Chinesedonatorsarelookingabroad.Incomparison,WesterncountriesliketheUS,whichhavealonghistoryofdonatingmoney,havewell-developedsystemsthatusemoneyefficiently.Theycanalsoprovidefullaccessfordonorswhowanttotracktheuseofthemoney.Togetmoredonations,Chineseuniversitiesshouldbebraverandmorehonest.Theyneedself-reflectionratherthanenvy.1、WhydidChen’shugedonationsdrawpeople’sattention?A.Itwasusedforbrainresearchratherthanforthepoor.B.Itwasnotusedefficiently.C.Itwasthelargestdonation.D.ItshouldhavebeendonatedtoaChinesecollege.2、Whichofthefollowingscanbestreplacetheunderlinedword“domestic”inthesecondparagraph?A.home.B.family.C.household.D.homepage3、TheexampleofPanShiYiwasusedto________.A.informsomeChinesestudentsarepoorateducationB.showoffthegenerosityofChinesebillionairesC.presentthewidespreaddisagreementoverdonatingabroadD.provetheChinesearecrazyaboutdonations4、WhatisthemainadvicedoestheauthorgivetotheChineseuniversities?A.Developingartificialintelligence.B.Educatingthebraverandmorehonestgraduates.C.DevelopingfasttocatchupwiththeUS.D.Developingsystemstousethedonationsefficiently.22.(8分)Ithasbecomeacertainbeliefamongthepublicdrinkatleasteightglassesofwateradaytoimprovehealthandwellbeing.Bottledwatercompaniesoftenrepealittoincreasetheirsalesbutitisactuallyasillyidea.Thereisnoevidencetoprovetheadvantagesofdrinkingeightglassesofwateraday,scientistssay.Themisunderstandingiscausedfromthesuggestionthatadultsshoulddrink2.5litersofwaterdaily,whichwasstressedbytheBritishMedicalJournalinDecember.Theimportantpartofthesuggestionthatmostofthisquantityofwateriscontainedinpreparedfoods,however,isusuallyignored.USresearcherswhoreviewedtheevidenceconcludedthatmostpeopledonotneedtoworryabouttheamountofwatertheydrinkevery.day.Besidesdrinkingwater,theywillbegettingplentyofliquid(液体)inotherways.Caffeinateddrinkssuchastea,coffeeandcolaandalcohol(酒)canhelpreachthedailytotaliftheydon'tdrinktoomuch,thoughthesedrinkshelptheproductionofurine(尿).Lesswellknownarcthedangersofdrinkingtoomuchwater,causingwaterpoisoning,lowsaltlevelsandevendeath.ThereviewofresearchbyDanNegoianu,fromtheUniversityofPennsylvania,foundthatnotasinglestudyincludedthesuggestionofdrinkingeightglassesofwateraday.Althoughonesmallstudysuggestedthatdrinkingwatercouldresultinfewerheadaches,theresultswerenotveryimportant.However,thebenefitsofdrinkingsomewatertopreventapaininheadafterdrinkingtoomuchalcoholare,separately,provedtobetrue.Nostudiesshowedanyadvantagestothecoloroftheskinbecauseoftheincreasedwatertakenintobodies.Dehydration(脱水)canmakeskinlesspleasant,buttherewasnoclearevidencetosupporttheideathatwaterhelpspeoplekeepayouthfulappearance.Theresearchersalsofoundnoevidencethatdrinkinglotsofwaterdoessomegoodtothebody'sorgans(器官).1、Fromthepassage,weknowthatthesuggestionaboutdrinkingeightglassesofwateraday.A.causessomeseriousdiseasesB.hasenoughscientificevidencetosupportitC.ismisunderstoodbypeopleinfactD.waspublishedbytheBritishMedicalJournal2、Fromthepassagewelearnthatmanypeopledon'tknowthat_______.A.theproductionofurinecancausewatertoloseB.healthcanbeimprovedbydrinkingplentyof'waterC.betterskincanresultfromintakeofmuchwaterD.caffeinateddrinkscanprovidethewaterpeopleneed3、Whatcanbeprovedaboutdrinkingalotofwateraccordingtothepassage?A.Reducingthebadinfluenceofdrinkingalcohol.B.Helpingtokeepyouthfullooks.C.Makingthebody'sorgansstronger.D.Causingbadheadaches.4、Thewriter'smainpurposeofwritingthispassageisto.A.persuadepeopletodrinkdifferentkindsofwaterB.tellpeopledrinkingmuchwaterisnotashealthyasisconsideredC.warnpeopleofthedangerofdrinkingmuchwaterD.helppeoplerealizetheimportanceofdrinkingenoughwatereveryday23.(8分)AnArizonamomsaysnoneofherson'skindergartenfriendsshoweduptohisbirthdaypartyaftershesent32invitationstohisclassmates.Theboy,Teddy,heldabirthdaypartyonSundayatPeterPiperPizzainTucson,whereheandhismother,SilMazzini,hadbeenexpectingdozensoflittlegirlsandboys—aswellasthechildren'sparents—tojointhemattherestaurant.Mazzinisaidafewpeopletoldherinadvancethattheycouldn'tmakeit,butshewasn'tpreparedforeveryonetobeno-shows.MazzinisharedaphotoofhersonsittingaloneinfrontofseveralpizzasonherFacebookpage.Thatbroughtdozensanddozensofbirthdaywishesfromaroundthecountry,aswellasothergiftsandoffers."IlivenearTampa,Florida,andheardaboutyouviamylocalnews,"onewomanwroteonFacebook."IhopeyouhaveawonderfulyearandI'msendingyouabighug."ThebiggestunexpectedbirthdaypresentforTeddycamefromthePhoenixSuns,whoinvitedhimtowatchWednesdaynight'sgameattheTalkingStickResortArenaagainsttheLosAngelesLakersandLeBronJames.Thecity'sprofessionalsoccerclub,thePhoenixRising,alsoinvitedTeddyto"join7,000ofhisclosestfriends"ataplayoffgameonFriday.ButsomeonsocialmediaquestionedMazzini'sdecisiontobroadcastherson'shumiliatingday."Quick!Someonecallthenews.Don'tembarrassthiskidevenmorethanhealreadyis,"onewomanwroteonFacebook."Goodlord.Thisissowrong."1、HowmayTeddyfeelabouthisbirthdayparty?A.Relaxed. B.Disturbed. C.Disappointed. D.Bored.2、WhatdidthePhoenixSunsinviteTeddytodo?A.PlayaplayoffgameonFriday.B.WatchWednesdaynight'sgame.C.Jointheprofessionalsoccerclub.D.Spendaweekendwiththem3、WhatcanweinferaboutSilMazzinifromthelastparagraph?A.Sheisnotsupportedbyallthepeople.B.Shecareslittleaboutherson'sfeelings.C.Sheregretshavingpostedherson'simages.D.ShehasremovedthecommentsonFaceloook.24.(8分)Atatimewhenalmostanythingcanbepurchasedwithjustoneclick,it’sbecomeanautomaticresponsetosimplyreplacewhatbreaks.Generationsraisedintheearlierhalfofthe20thcenturywillsaythatthiswasn’talwaysso:householdappliances(器具),clothing,electronicsandmoreusedtobeboughtundertheassumptionthat,withtheoccasionalrepairs,theywouldlastalifetime.Now,someconscientiousconsumersaretakingmattersintotheirownhandsandjoiningtheRepairCafémovement.FoundedinAmsterdamin2009bysewingexpertMartinePostma,theoriginalnonprofithasexpandedtomorethan1,500locationsworldwide.Thesepop-upevents,whicharerunbyvolunteers,offerlessonsinhowtofixanythingfromfixingabuttontoanunresponsivelaptop.“There’sjuiceandtreatsandyougettomeetnewpeople,”saysBennett,aretiredcivilservantandvolunteerfixerattheRepairCafeToronto,whereshemendsjewellery.Shebringsherownspecializedtoolsbutsaysmostitemscouldberepairedbyanyonewithapairofpliersandsomedetermination.“Somethingthatisbrokentooktimeandresourcestomake,soifyou’rethrowingitout,you’rewastingthoseresources.”Ifyoucan’tfindaRepairCafenearyou,it’seasytostartone.RepairCafe.orgoffersastartermanualwithstep-by-stepinstructions.Changinghowweacquirethingsisnecessary,butthere’salsosomethingtobesaidforsimplynotgettingtheminthefirstplace.“Mostofushavemorethanwhatweneed,”saysMarina.“Thiscanleadtoalotofanxiety,like—thinkabouteverythingpackedinthebackofyourcloset;doyouownthosethingsordotheyownyou?”Shesuggestswetrainourselvestomakemindfulpurchases.Lazarovic,whosedelayedpurchasewentevenfurther,explainsthatlessshoppinghasfreedupmoretimeforfamilyactivities,dinnerwithfriendsandmakingart.Bydoingso,assheputsit,“Igotoutofthatneed-to-buy-itcrazeandintheendIfeelgoodthatI’vemadesomething.”1、Howwouldpeopleraisedinthe1940sdealwithbrokenhomeappliances?A.Sellthematalowerprice.B.Pressthebuttontofindthefault.C.Repairthemtolastlonger.D.Donatethemtorecyclingstations.2、WhatdoesBennettsayaboutherwork?A.Shelikesthegoodfoodpeoplebringforherwork.B.Helpingmakerepairsmeanssavingresources.C.ShewillsetupherownRepairCafesoon.D.Shelearnedtorepairjewelsaftersheretired.3、Whichofthefollowingbestexplains“conscientious”underlinedinParagraph2?A.Responsible.B.Generous.C.Powerful.D.Irreplaceable.4、WhatgooddoesLazarovicthinklessshoppingwilldotous?A.It’llmakeuslessanxiousaboutusedthingsathome.B.It’llforceustomakedonationsofunwantedthings.C.It’llleadustoexploretheworldmoreresponsibly.D.Itwillprovideusmoretimeforbeneficialevents.25.(10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.Howtotakeaplane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)完形填空Leavingforworkonemorning,Inoticedthatmynewspaperhadn’tbeendeliveredyet.SinceIalwaystookittowork,it1methatIwouldhavetostopatthestoreandpickoneup.Iwasalreadyrunninglate,butfiguredIcouldmakeitifIhurried.Itwasputtingmeina2mood.AsIpulledintotheparkinglotofthe3togetanewspaper,Inoticedayoungmaninawheelchairwhoseemedtobe4withhiswheelchair.“I’msurehe’sallright”,Ithought,“orifhe’snot,someoneelsewillhelphim.”5bythecustomersandcarsthatwerepassinghimby,Iguessedtheywerethinkingthe6thing.Igotoutandwalkedovertoseewhatthe7was.“IsthereanythingIcando?”Iasked.Inoticedhewasn’tableto8,andwasstillstrugglingwiththewheelchair.I9atthewheelchairandnoticedthattheclamp(夹锁)holdingtheelectronickeyboardandchaircontrolshad10loosened,causingtheequipmenttoslipdown,outofhisreach.Ipulleditbackinto11.Hishandpulledovertothekeyboardandhehitasinglekey.Anelectronicvoicesaid,“Thankyou.”Ifeltawaveofgratitudecomeoverme.Iwastrulyblessedtohavethephysical12thatallowedmetoliveanormallife.Theyoungmanhelpedmegainanewwayofthinkinginlife.1、A.annoyed B.ignored C.permitted D.avoided2、A.guilty B.curios C.bad D.good3、A.office B.store C.library D.station4、A.comparing B.living C.struggling D.playing5、A.Judging B.Waiting C.Attracted D.Interrupted6、A.particular B.happy C.same D.strange7、A.accident B.trouble C.comment D.surprise8、A.share B.deliver C.move D.speak9、A.lookup B.lookdown C.comedown D.holdup10、A.gradually B.luckily C.suddenly D.obviously11、A.space B.form C.place D.shape12、A.gratitude B.attitude C.manner D.abilit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)YuanLongpingisoneofChina'smostfamousscientists.1.(work)thelandtodohisresearch,heconsidershimselfafarmer.Indeed,hissunburntfaceandarmsandhisslim,strongbodyarejustlikethoseofmillionsofChinesefarmers,2.hehasstruggledforthepastfivedecades.Whenhewasyoung,hesawmanypeopledyingof3.(hungry),whichwasa4.(disturb)probleminmanypartsofthecountryside.Then,hedevotedallhistimeandenergy5.searchingforawaytoincreasericeharvestswithoutexpanding6.areaofthefields.In1973,hebecamethefirstagriculturalpioneerintheworld7.(grow)ricethathasahighoutput.Now,heremains8.(circulate)hisknowledgeinmanylessdevelopedcountriestoincreasetheirriceharvests.Heisquite9.(satisfy)withhislife.However,hedoesn'tcareaboutbeingfamous.Hefeelsitgiveshimlessfreedomtodohisresearch.Inhisview,spendingmoneyonhimselfor10.(lead)acomfortablelifemeansverylittletohim.Hethereforegivesmuchmoneytoequipothersfortheirresearchinagriculture.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处错误,每句中最多有两处,错误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:在错的词下画一横线,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。Nowadays,therearealotoffilmsandTVplaysthatareadaptedtopopularnovelsorclassicalwork.Somepeoplethinkbettertoreadtheoriginal,whileothersareagainstit.IthinkreadingtheoriginalistoomuchbetterthanwatchingitsfilmorTVversionbecauseIcanexperiencemoreafterreadingtheoriginal.Justasafamoussayinggo,thereareathousandHamletsinathousandpeople’seye.Differentpeoplehavedifferentfeelingsaboutthebookoracertainrole.ButinthefilmorTVversion,thoughwecangetamainideamoredirect,wemaymisssomewonderful,evenimportantplots.Andweareeasilymisledbytheactorsoractresses,sotheyactaccordingtotheirunderstandofthebook.Inaword,IthinkreadingtheoriginalismuchbetterthanwatchingitsfilmorTVversion.第二节书面表达(满分25分)29.(25分)假设你是李华,一批英国高中生和你校学生一起参加了为期三周的中国诗词大会(theChinesePoetryCompetition)。现在,他们即将回国,你将在欢送会上致辞。请根据以下提示写一篇发言稿。1.回顾诗词大会期间的活动;2.谈谈感想或收获;3.表达祝愿与期望。注意:1.词数100左右;2.可以适当增加细节,以使行文连贯。Dearfriends.Howtimeflies!______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________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、A2、B3、B4、A5、A6、C7、B8、D9、C10、D11、A12、C13、D14、A15、D16、A17、D18、A19、C20、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、D2、A3、C4、D22、1、C2、D3、A4、B23、1、C2、B3、A24、1、C2、B3、A4、D25、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

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