福建省莆田市重点中学2023-2024学年高考全国统考预测密卷英语试卷含解析

福建省莆田市重点中学2023-2024学年高考全国统考预测密卷英语试卷注意事项:1．答题前，考生先将自己的姓名、准考证号码填写清楚，将条形码准确粘贴在条形码区域内。2．答题时请按要求用笔。3．请按照题号顺序在答题卡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、试卷上答题无效。4．作图可先使用铅笔画出，确定后必须用黑色字迹的签字笔描黑。5．保持卡面清洁，不要折暴、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．OwingtoTheChinesePoetryCompetition,publicationsonclassicalChineseliteratureare__________asignificantshareofstoragespaceatthebookstore.A．takingupB．dividingupC．breakingupD．puttingup2．—CanIhaveadayofftomorrow?Ineedtovisitmygrandmainthehospital.—__________.Icanmanagewithoutyou.A．ForgetitB．OfcourseC．ItdependsD．I’mafraidnot3．Distinguishedguestsandfriends,welcometoourschool,_____theceremonyofthe50thAnniversarythismorningareouralumni（校友）fromhomeandabroad.A．Attend B．Toattend C．Attending D．Havingattended4．IntheofficeIneverseemtohavetimeuntilafter5:30p.m.，manypeoplehavegonehome.A．whosetime B．thatC．onwhich D．bywhichtime5．–MyTVsetdoesn’twork,thewatertapisdrippingandmycarisstillunderrepair!–Yousure________badluckthesedays.A．had B．willhave C．hadhad D．arehaving6．---Howdidyouliketheconcertlastnight?---Ienjoyeditverymuch,butthedancers______abetterjob.A．couldhavedone B．couldn’thavedone C．coulddo D．haddone7．HewasgreatlyshockedatDonaldTrump’stakingoffice.Neverdidheexpectthatthevoters_______besounreasonable.A．shouldB．couldC．wouldD．might8．Theincidentturnedhimintodifferentperson,evenifhedidnotrealizeitatbeginning.A．a;a B．the;the C．the;a D．a;the9．---Theyarequiet,aren’tthey?---yes.Theyareaccustomed____atmeals.A．totalking B．tonottalking C．tonottalk D．totalk10．Rightnow,lotsofpeoplesearchforproductsontheInternetbutstillbuythematstores.Internetshoppingwillreally____whenpeoplearesurethatitissafe.A．setup B．setoff C．takeoff D．takeup11．---What’swrongwithyourcellphone?Ican’tgetthrough.---Oh,mylinewascutoffbecauseI________mybill.A．haven’tpaid B．hadn’tpaid C．wasn’tpaying D．don’tpay12．ThestatementofOneFoundationhelpsyou____whereyourmoneyisgoing．A．keeptrackof B．putupwithC．comeupwith D．fitinwith13．Wearetoholdthesportsmeetingnextweekend,________theairqualitybecomesbetter.A．which B．whenC．where D．while14．Sometimeswehavetofaceembarrassingmoments________wecanonlykeepsilent.A．who B．whichC．when D．why15．Trytobeindependent,foryourparentscan'tdo________foryouallyourlife.A．something B．nothingC．everything D．anything16．PresidentXiunderlinesthatitisonlywithjointeffortstokeepmaritimepeace________buildamaritimecommunitywithasharedfutureformankind.A．canwe B．wecan C．thatwecan D．thatcanwe17．—What’sthatnoise?—Oh，Iforgettotellyou.Thenewmachine________.A．istestingB．wasbeingtestedC．isbeingtestedD．hasbeentested18．—Youshouldn’thavetreatedmethatway.Myheartisbroken.—I’msorry,Paul.Ididn’tmeanyou.A．hurting B．tohurt C．hurt D．havinghurt19．IamatalosswhyMikeisalways________everytimeImeethim.Believeitornot,weusedtobebestfriends.A．givingmethecoldshoulderB．makingmydayC．followingsuitD．beatingaroundthebush20．—GoingtowatchtheWomen’sVolleyballMatchonWednesday?—________!Willyougowithme?A．Youbet B．YougotmeC．Youthere D．Youknowbetter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）IvisitedCopenhagenforthefirsttimelastEaster.Asastudent，I’malwaysstrappedforcash，soIassumedIcouldonlyaffordtobreathetheair—butluckilyeverythingaboutCopenhagenisbreathtaking.IwasstayinginanAirbnb,andrentedabikesoIcouldcovermoreground.OneofthefirstplacesIvisitedwastheRundetaarn,or“roundtower”builtinthe17thcenturyasanastronomicalobservatory.Ithasanequestrianstaircase(awidesetofstairsbigenoughforhorsestouse)thatwentonandon.AsIwasgoingup,Istoppedtovisitthetower’slibraryhall.Atthetop,there’saglassplatformthatgivesaview80-footstraightdown,aswellasabellloft.Luckily,theviewsoverCopenhagenfromthetopwerewellworththeclimb.Aftercomingdown,IhikeduptotheKastelletFortresstoseethefamousLittleMermaidstatue.Takingaphotowithherwasalmostimpossiblewithallthetouristscrowdingaround—butsittingthereandhearingthelappingwavesofthedeepblueBalticSea,waitingforthesuntoset,wasanunforgettableandcalmingexperience.Thenextday,IvisitedtheGlyptotekartmuseum,exploringthegrandexhibits.IlookedintothemarbleeyesofmanyRomangods,andwalkeddowndimlylitstaircasestoseemummiesfromEgypt.BeforeIunwillinglyboardedthetrainbacktotheairport,ItoldmyselfthatImustvisitagain—toexperiencethethrillsofTivoliGardens,trymoreofthestreetfoodandeverythingelsefromthisamazingcity.1、Whydidtheauthorrentabike?A．Becauseshelovedtorideabike.B．Becauseshedidn’taffordtorentacar.C．Becauseshefoundnowheretorentothervehicles.D．Becauseshewantedtoseeasmanyattractionsaspossible.2、WhatdidtheauthorfinddifficultattheKastelletFortress?A．Findingasittingplace.B．Waitingforthesuntoset.C．Listeningtothesoundofwaves.D．Havingaphototakenwithastatue.3、Whichofthefollowingdidn’ttheauthorvisit?A．Rundetaarn.B．TivoliGardens.C．Glyptotekartmuseum.D．LittleMermaidStatue.4、Whatistheauthor’spurposeinwritingthetext?A．Torememberaholiday.B．Tointroduceanewattraction.C．Tosharehertravelexperience.D．ToshowherloveofCopenhagen.22．（8分）Internetcommunicationishavingapositiveinfluenceoneducationinandoutoftheclassroom.TheInternetprovidestheopportunityforpeopleanywhereintheworldtoaccessqualityeducationalservicesfromthecomfortoftheirhome.TheInternetallowsyoutohaveaccesstoeducationalopportunitiesonyourschedule,andatyourownpace.ClassroomusageofcomputersintheUnitedStatesbeganintheearly1980s,withapplicationslimitedtosoftwarepackagesthatprovideddrillandpracticebystudents.Bytheearly1990s,mostclassroomsintheUnitedStateshadacomputertheteachercouldusetoaidinthepresentationofacademicmaterial.Bythelate1990sInternetusagebecamewidespread,becomingasignificantfactorinclassroominstruction.Thelate1990salsosawtheriseofInternetbasedpost-secondaryeducationalprogramsthatallowstudentstoearnacollegedegreewithoutattendingaclassinatraditionalinstitution.Internetusageopenstheentireworldofinformationandcommunicationtostudents.Studentscanaccesslibrariesfromanycityoftheworldatanytimedayornight.Studentscanhave24houraccesstoallmaterialsneededtocompleteanassignment.Studentsusingcomputertechnologyandcommunicationtoolstoresearch,developandpublishschoolprojectsdevelopcriticalthinkingskillsthatareessentialindecisionmakingprocesses.Teachersneedtoequipstudentswithanewsetofskillswhichwillenablethemtolocate,analyze,evaluate,andsynthesizethevastamountsofinformationavailable.Studentsmustbecomeinformationmanagers.StudentswholearntousecomputersandtheInternetproficiently(熟练地)developcompetenciesthatarerequiredinthe21stcenturyworkplace.Internetusageallowsstudentsandworkerstocommunicateefficiently,increasingproductivelyandfacilitatingcreativethinking.Thepaceoftechnologicalchangeisforcingstudentstocontinuelearningnewskillsandresponsibilities.Therealityofrapidchangewillchallengeestablishedinstructionalmethods,andwilltransformschoolsintotechnologicaltrainingcenters.1、Whatcancomputertechnologyandcommunicationtoolsbenefitstudents?A．Enteringlibrariesfreely.B．Makingessentialdecisions.C．Beinginformationmanagers.D．Gainingimportantthinkingskills.2、Whatmakesstudentspursuenewskillscontinuously?A．Thehighpaceofmodemsociety.B．Therapidchangeoftechnology.C．Thetendencyofclassroomteaching.D．Thedevelopmentofteachingmethods.3、Whichofthefollowingcanreplacetheunderlinedword“competencies”？A．Abilities.B．Positions.C．Competitions.D．Wages.4、Whatwouldbethebesttitleforthetext?A．TheinfluenceoftheInternetoneducationB．Howtoimproveclassroomteachingonline?C．TherelationshipbetweenInternetandeducationD．WhyInternetcommunicationissoimportant?23．（8分）TourInformationofBodleianLibraries,UniversityofOxfordImportantnotes:Allourguidedtoursareconductedbyourprofessionallytrainedvolunteerguides.Weareabletotakechildrenaged11andoverintotheworkingareasoftheBodleianLibraryonthesetours.Weregretthattheguidedtoursarenotrecommendedtoyoungerchildren.Howtobook:PurchaseselectedticketsonlineorattheGreatGateticketofficeatleasttwodaysaheadoftime.1.MinitourTheminitourallowsyoutoviewthemostbeautifulpartsoftheBodleianLibraryinjust30minutes.Whatyou’llsee:15th-centuryDivinitySchoolandDukeHumfrey’smedieval(中世纪的)library.Length:30minutesPrice:£6perpersonTimes:Monday—Saturday:9:30,15:30,16:00,16:40Sunday:12:45,14:15,14:45，15:15,16:00,16:402.StandardtourThistourshowsyoutheinteriorofthebuildingsthatformthehistoricheartoftheUniversity.Whatyou’llsee:15th-centuryDivinitySchool,ConvocationHouse,Chancellor’sCourtandDukeHumfrey’smedievallibrary.Length:60minutesPrice:£8perpersonTimes:Wednesday—Friday:10:30,11:30,13:00,14:00Sunday:11:30,14:00,15:003.Extendedtour—Upstairs,downstairsThistourofferstheopportunitytovisitboththeBodleianLibrary’swonderfulhistoricroomsandthemodernundergroundreadingrooms.Whatyou’llsee:15th-centuryDivinitySchool,ConvocationHouse,Chancellor’sCourt,DukeHumfrey’smedievallibrary,RadcliffeCameraandGladstoneLink.Length:90minutesPrice:£15perpersonTime:WednesdayandSaturday：9*154.Extendedtour—ExplorethereadingroomsAnexplorationoftheBodleianLibrary’swonderfulreadingroomswherescholarshavestudiedforcenturies.Whatyou’llsee:15th-centuryDivinitySchool,ConvocationHouse,Chancellor^Court,DukeHumfrey’smedievallibrary,UpperReadingRoomandRadcliffeCamera.Length:80minutesPrice:£14perpersonTimes:Sunday:11:15,13:151、WhencanyoutakeaStandardtour?A．At9:30onMonday. B．At13:00onSaturday.C．At14:00onThursday. D．At12:00onSunday.2、Whatarevisitorsrequiredtodotogoonthetours?A．Bringtheirownguides. B．Setoffearlyinthemorning.C．Avoidtakingchildren. D．Makereservationsinadvance.3、Whatcanwelearnfromthetext?A．lThefirsttourcanbebookedviatelephone.B．Thesecondtourshowsamodemundergroundreadingroom.C．Thethirdtourcoststhemost.D．Thefourthtourlaststhelongest.24．（8分）Thetonsofplasticwe’redumpingintheoceansisfindinganewhome—thestomachsofourbeautifulmarineanimals.YetanotherreminderofthisfactwashedashoreinEasternIndonesiathisweek.Alargeamountofwaste,includingdrinkingcupsandflip-flops,wasfoundinthestomachofawhalethatdiedoffthecoastnearKapotaIsland.The9.5-metrespermwhale(抹香鲸)wasfoundbyrescuersfromtheWakatobiNationalPark.Thewhalehadswallowed5.9kilogramsofplasticwastecontaining115plasticcups,fourplasticbottles,25plasticbags,andmorethan1,000otherkindsofpiecesofplastic,parkchiefHeriSantosotoldthereporter.“Althoughwehavenotbeenabletodeducethecauseofdeath,thefactsthatweseearetrulyawful,”saidDwiSuprapti,amarinespeciesconservationco-ordinatoratWWFIndonesia.Shesaiditwasnotpossibletodetermineiftheplastichadcausedthewhale’sdeathbecauseoftheanimal’sadvancedstateofdecay(腐烂).Butthisisonlythelatest.FourAsiannations—Indonesia,thePhilippines,VietnamandThailand—accountfor50%oftheplasticwasteintheoceans,accordingtoareportbyenvironmentalcampaignerOceanConservancyandtheMcKinseyCenterforBusinessandEnvironment.ThePhilippinesissecondtoIndonesiawhenitcomestoputtingawayplasticwasteintheoceans,accordingtoastudypublishedinthejournalScienceinJanuary.Ofthe3.2millionmismanagedwasteitproduceseveryyear,1.29millionendsupintheocean.Areportreleasedearlierthisyearstatedthattheamountofplasticintheoceanislikelytoincrease.1、Whatcanweknowaboutthespermwhale?A．Itsstomachisthehomeofplasticwaste.B．Itdiedofswallowinglotsofplasticwaste.C．Itwasthefirstwhaletoeatplasticwaste.D．Ithadeatenmuchplasticwastebeforeitsdeath.2、Whichcanbestreplacetheunderlinedword“deduce”inparagraph3?A．confirm B．causeC．approve D．contain3、Whichcountrydumpsthemostplasticwasteintotheoceans?A．Thailand B．IndonesiaC．Vietnam D．Philippines4、What’sthemainideaofthepassage?A．Philippinesputsaway1.29milliontonsofplastic.B．AspermwhalewasfounddeadnearKapotaIsland.C．Muchdumpedplasticwastewasfoundinadeadwhale.D．Weshouldtakemeasurestoreducethewasteinwhales.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）EvenasIwritethisstory,Iamstillsmiling.Thepastfewweekshavebeenrather1,butwhenalargenumberofsmilecardsarrivedinmymailboxtheotherday,havingtraveledfromtheUnitedStatestomyhomeintheNetherlands,Iknewthingswereaboutto2I3wheretoleavethecards:thetrain,benchesatthestation,libraries,mailboxes—thepossibilitieswere4Iwokeup,wenttowork,and5,Iwenttotheshoptobuysomecandybars,6toleavethemasanonymous(匿名的)giftsforpeopleonthetrain7,mytrainhomewasextremely8andIcouldn’tfindaplacetoleavethegifts.Anelderlymanmusthave9mesearchingforaplacetoleavethem,becauseheaskedmeifIwas10something.RightthenI11thatmyfirstsmilecardwouldnotbeanonymous.Withabigsmile,ItoldhimthatIfoundwhatIwaslookingfor,12himthecandybarandacard.Hehadonlyjustfinishedreadingthecard13Iarrivedatmy14andgotoffthetrain,buthewasstillsmilingand15hiscandyasIwavedathimfromthe16Despitehavingworkedforafullday,I17bounced(跳)home.BeforeIenteredmy18,Ideliveredafewmoresmilecardsandcandybarstopeople’smailboxes.Iaddeda(n)19candybarforaneighborwhowasinadifficultfinancialsituation,butworkedhardeverydaytogettheverybestforhisyoungson.Ifiguredtheyboth20atastylittletreat.1、A．joyous B．simple C．tough D．colourful2、A．turnaway B．turnaround C．turnup D．turnin3、A．required B．realized C．declared D．wondered4、A．small B．important C．specific D．endless5、A．otherwise B．afterwards C．instead D．sometimes6、A．stopping B．continuing C．agreeing D．planning7、A．However B．Besides C．Therefore D．Anyway8、A．special B．common C．crowded D．modern9、A．prevented B．seen C．heard D．left10、A．pickingup B．caringabout C．lookingfor D．referringto11、A．advised B．decided C．wished D．ordered12、A．buying B．posting C．sending D．handing13、A．when B．while C．until D．once14、A．hometown B．company C．country D．stop15、A．receiving B．enjoying C．finding D．dividing16、A．entrance B．office C．platform D．bench17、A．tiredly B．excitedly C．fortunately D．carefully18、A．apartment B．farm C．city D．classroom19、A．extra B．perfect C．typical D．ordinary20、A．rejected B．deserved C．afforded D．forgot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）Intheworkshopofabrush-penstoreinHuzhou,the29-year-old.ShiWanglimakestraditionalChinesebrush-pens.Herhandsareimmersed(浸泡）inwaterforat1．(little)eighthoursaday，in2．summerandwinter.Thechoiceofthehairsinstepsofmakingaqualitybrush-penisofgreat3．(important)andtheworkdoescannotbeperformed4．amachine.itisadifficultbutmeaningfuljob.Sheistheyoungestbrush-pentechnicianinHuzhou.Themanagerofthestoresaysheisworriedthethousand-year-oldtechniqueformakingtheHuzhoubrush-penusedincalligraphy(书法)willbelostwithfewyoungpeople5．（will)tolearnit.InChinesehistory,brush-penis.anessential（基本的）toolforculturalinheritance(遗产).However,withtherapidprogressofmoderntechnology,brush-Pens6．(replace)firstlybypens,thenballpointpensandnowkeyboards.TheMinistry-ofEducationrequiredelementaryandmiddleschoolstostartcalligraphyclasses7．(save)theChinesetraditionalculture.Thereisageneral8．(believe)thatbrush-penmakingshouldberegardedasatechnique9．representsChineseculture.Peopleshouldgettoknowthemeaningsandthoughtsbehindthesetraditional10．(technique).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。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限一词;2、只允许修改10处，多者（从第11处起）不计分。DearTom,Howiseverythinggoingrecently?ThathasbeenalongtimesincewemeetinChinalasttime、Havingpassedthefinallyexams,Iambusyplanningatwo-weekstriptotheUSduringthiswinterholiday、DoyouhavesomeadvicesaboutthechoiceofAmericancities?Iprefertobigandmoderncities、IguessI’dbetterbookahotel、Whatisthepriceforsingleboylikemyself?IsiteasytofindChinesefood?WhatisthetrafficlikeafterItravelbetweencitiesintheUS?Hopetohearingfromyou、Thankyou!Bestregards!LiHua86第二节书面表达（满分25分）29．（25分）第二届“一带一路”国际合作高峰论坛（theBeltandRoadForumforinternationalCooperation）将于2019年在中国举办。组委会向全球征集志愿者。假设你是李华，请按下面的要求给组委会写一封自荐信。内容应包括：1.个人情况：年龄、性别、学历；2.个人条件：性格、兴趣爱好、语言能力等；3.个人优势:如熟悉中国传统文化，了解“一带一路”政策等;4.其他…注意：1.词数100左右；2.可以适当增加细节，以使行文连贯；3.开头语和结束语已为你写好。DearSirorMadam,Thankyouforreadingmyletter.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Iamlookingforwardtoreceivingyourreply.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、C4、D5、D6、A7、A8、D9、B10、C11、B12、B13、B14、C15、C16、C17、C18、B19、A20、A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、D3、B4、C22、1、D2、B3、A4、A23、1、C2、D3、C24、1、D2、A3、B4、C25、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-dollartoolkitthatastronautHeidemarieStefanyshynPiperlostduringaspacewalk.Themajorproblemwiththespacetrashisthatitmayhitworkingsatellitesanddamagetravelingspacecraft(飞船).Moreover,piecesofjunkmaycollide（