上海市嘉定區(qū)嘉一中2023學(xué)年高考臨考沖刺英語試卷（含解析）

2023學(xué)年高考英語模擬測試卷注意事項：1．答題前，考生先將自己的姓名、準考證號填寫清楚，將條形碼準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．請按照題號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．UsuallyBeijingRoastDuck_____togetherwithspecialpancakes,greenonionsandsweetsauce.A．wasservedB．willserveC．isservedD．served2．Thewidespreadofsuperhybridricearoundtheworld______thelivesofmillionsandmillionsofpeoplesufferingfromhungertoagreatlevel.A．hasimproved B．isimproving C．improved D．hasbeenimproving3．E-shopping,whenproperly_____,cansaveusalotoftimeandenergy.A．done B．doing C．todo D．isdone4．Tocombatglobalwarming,manypeopleare_________theuseofalternativeenergysources.A．a(chǎn)pplyingto B．jumpingat C．dippinginto D．pushingfor5．_____thatitwassoldoutwhenitcameout. A．Sowashersuccessfulbook B．Sosuccessfulwasherbook C．Soherbookwassuccessful D．Sosuccessfulherbookwas6．_______hisoverseasstudy,hewaseventuallyemployedbyhisdreamcompany.A．Havingcompleted B．CompletingC．Completed D．Tocomplete7．Duringthenegotiationtofollow,itcanbearguedthatsharesofforeigncompaniesareovervalued________thereturntheyoffer.A．intermsofB．inmemoryofC．infavorofD．inchargeof8．SorryI’msolate,butyoucannotimagine________greattroubleItooktofindyourhouse.A．whichB．howC．whatD．that9．_______manyChineseholidaysaredirectedtowardsservicesrememberingancestors,theChingMingFestivalisbeyonddoubtthelargest.A．Unless B．SinceC．Once D．While10．Mark______havehurried.Afterdrivingattopspeed,hearrivedhalfanhourearly.A．needn’t B．wouldn’t C．mustn’t D．couldn’t11．Helikedthelovelydogsomuchthathe________hisbookandplayedwithitimmediately.A．gaveoff B．setasideC．tookover D．turneddown12．––Thesmallrestaurantisalwayscrowdedineverypart.––That’s______ithasauniquediningenvironmentandquiteafewwonderfuldishes.A．why B．becauseC．where D．when13．Theyoungman,________inheavytrafficontheway,gothomeanhourlaterthanusual.A．catching B．caught.C．havingcaught D．tobecaught14．Peterishelpingsettablesinthehall,whereJohn’sbirthdayparty________.A．isholdingB．hasheldC．isheldD．willbeheld15．Itsagoodideatogetstudentstoretellastorytheirownwords．A．of B．in C．by D．through16．SallywasexcitedtomeetSusanatthepartylastnight．They_____eachothersincetheygraduatedfromOxfordUniversityin2010．A．haven’tseen B．hadn’tseenC．didn’tsee D．don’tsee17．______exactlywhatwaswrongwithhim,thedoctorsgavehimacompleteexamination.A．TodiscoverB．DiscoveringC．DiscoveredD．Havingbeendiscovered18．—Excuseme,doyoumindifIopenthewindow?—Well,ifyou__________.Icanputonmoreclothes.A．can B．mayC．must D．shall19．PeoplebelievethattheChinaDreamisnotverydifficult________solongasthewholenationworkshardforit.A．realizing B．toberealizedC．realized D．torealize20．I’mgoingtospendthesummerholidayinHainan,________livesmyuncle.A．where B．whoC．which D．when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）KoreaWhilemanyKoreanspreferWestern-styleweddingsinwhichthebridewearsawhileweddingdress,somecouplesarestillcarryingoutthe“Pyebaek”–aKoreanweddingcustom.ThePyebaekisheldaftertheofficialceremony,andiswhenthebridepaysrespectstoherparents-in-lawforthefirsttime.Thenewcouplebowdeeplybeforetheparents,andtheyexchangejujube(棗)andchestnuts(栗子)—symbolsforchildrenandgoodfortune.—SujeanPark,HuffPostKoreaJapanForJapaneseweddings,it’scustomaryforgueststobringcashasagiftforthenewcouples.Theamountdependsontheguest’srelationshiptothecouple—onaverage,friendswouldgive$300,andfamilymembersmaygiveupto$1,000.Thebillsshouldbeunfolded,freshlyprinted.They’retypicallyputinaspecialenvelopssignedbytheguest.Guestsleavetheenvelopesatareceptiondeskattheceremonyandreceiveweddingfavorsinreturn.—RyanTakeshita,HuffPostJapanBrazilInBrazilianweddings,thebestmancutsthegroom’stieintoseveralpiecesandsellsthemtotheweddingguestsatwhateverpricetheychoosetopayforit.Themoneythat’scollectedusuallygoestowardthecouple’shoneymoon.Brazilianweddingswouldn’tbecompletewithoutpastriescalled“bem-casados”,or“happilymarried”.Thesearetinysweetcakeswithacondensedmilk(煉乳)fillingthataremeanttobringgoodlucktothenewcouples.—AndreaMartinelli,HuffPostBrazil1、InKoreanweddings,________.A．onlywestern-styleweddingsarefavored B．thecouplemustbothwearawhitedressC．thebrideshowsrespectstoherparents D．somecouplesstillobservetheirtraditions2、WhenattendingaJapanesefriend’swedding,you’dbetter________.A．foldthenewbillsinanenvelope B．contain$300inaspecialenvelopeC．carryanenvelopewithaletterasagift D．givemorethan$1,000tothenewcouple3、WhydopeoplemakepastriesinBrazilianweddings?A．Tosharethenewcouples’stories.B．Toraisemoneyforthenewcouples.C．ToshowtheirexcellentcookingskillsD．Toexpressgoodwishestothenewcouples4、What’sthepurposeofwritingthistext?A．Tosharesomeweddingcustomsroundtheworld.B．Toadvisepeoplehowtomakepreparationsforweddings.C．Toshowthedifferentcustomsbetweendifferentcountries.D．Tocheckhowmuchyouknowaboutweddingcustoms.22．（8分）SydneyDayToursPortStephensDayToursLabeled“BlueWaterParadise”,PortStephensisknownforitsbeautyandmarinesurroundingswithover19milesofclean,whiteandsandybeaches.Itishometoaround150bottlenosedolphinandthuscalledthedolphincapitalofAustralia.Highlights:DolphinWatching;AustralianReptileParkOperates:Mon,Wed&Sat---8AMAdults:$195Children:$98Note:NotsuitablefromDec.20th,2017toJan.9th,2018inChristmas&NYperiod,Feb.14th-22th,2018inChineseNY.SydneyCityDayToursSydneyisabigcity,filledwithlotsoflandmarksandattractionstosee.ThiscanmakeitastressfultasktoplanyourownvacationinSydney.Luckily,ourtoursaredesignedtoallowyoutoseeallofSydney’smostfamouslandmarks.YoucanrestandmakesurethatyouwillbeseeingallthatSydneyhastooffer.Highlights:HarbourBridge;SydneyOperaHouseOperates:Daily---8AMAdults:$129Children:$65BlueMountainsToursTheseBlueMountainsToursfromSydneyhavebeendesignedfortheadventuresandpeoplewholiketoenjoybushwalking.Additionally,theseBlueMountainsDayToursincludesatoughwalkfromGlenbrooktotheWentworthFalls.Highlights:SeeAustralianwildlifeup-close;GuidedhikeatWentworthFalls.Operates:Daily—8AMAdults:$99Children:$74Note:Agoodleveloffitnessisrequiredforthebushwalk.Minimumchildageis11years.1、WhichoneisNOTpropertimeforthePortStephensDayTours?A．Jan.13th,2018(Sat.). B．Jan.15th,2018(Mon.).C．Jab.24th,2018(Wed.). D．Feb.15th,2018(Thur.).2、WhatcantouristsenjoyonSydneyCityDayTours?A．Marinesurroundings. B．HarbourBridge.C．DolphinWatching. D．Adventurousactivities.3、Whichofthefollowingistrueaccordingtotheadvertisement?A．Allthetoursareavailableeveryday.B．Sydneycityhasthemostlandmarksandattractionsintheworld.C．Children10yearsandunderarenotpermittedonBlueMountainsTours.D．Allthetoursarechargedanddesignedonlyforadventures.23．（8分）AmazingTrainRidesTakingatraininthewinterisfun.Themountainsturnfromgreentowhite.andyoucanenjoythemonthejourney.Nowmanyholiday-themedtrainsaddfun.Allaboard!●AuroraWinterTrain:AlaskaThisseasonalscenictrainthatheadsnorthfromAnchorageispopular.FromtheWinterTrainyou'llseeasnow-whiteDenali,America'stallestpeak(山峰)-andwithanyluck,atracksidemoose(駝鹿).YoucangetoffthetrainafterthreehoursatTalkeetnatoskiinDenaliorcontinueonforanotherninehourstoFairbanksforsomenorthernlightsviewing.There'refewbetterplaces,asFairbanksisAmerica'snorthernmostcity.●TheSkiTrain,ColoradoTheSkiTrainisajoyfulrideevenfornon-skiers.TherideconnectsDenver's1914Beaux-ArtsstationwiththeWinterParkskiarea.Oneminuteyou'reindowntownDenver'sBeaux-ArtsUnionStationandtwohourslateryou'resteppingoffthetrain.100feetfromaWinterParkskilift.Whatawonderfulrideitis!●AmtrakCaliforniaZephyr:ChicagotoSanFranciscoLong-distancetraintravelersadorewestwindinanyseason,butwinteraddstheappealofsugarysnowoutsidethewindowasyoutravelovertheRockiesandSierras.DepartingdailyallwinterfrombothChicagoandSanFrancisco,the51-hourjourneyoffershotel-levelserviceinabedroom.Oryoucanbreakupthetripwithstopstosleep(andski)inDenverorSaltLakeCity.●Canyon&Christmastrains:ArizonaSnowbirds"whoescapetheMidwestcoldinDecemberbyflyingtoArizonawishformemoriesofaChristmasawayfromthedesert.WithashortdrivefromPhoenixtoClarkdale(nearSedona).they'llseesmallpinesandredrockhillswhilehuggingtheVerdeRiveronthefour-hourVerdeCanyontraininindoorandopen-aircars.1、WhatshouldyoudoifyougotoFairbanksfromAnchoragetoseenorthernlights?A．ChangetrainsinDenali. B．Takea12-hourtrainride.C．Climboverthetallestpeak. D．Travelthroughamoosefarm.2、Onwhichridecanyouenjoycomfortableaccommodation?A．AuroraWinterTrain. B．TheSkiTrain.C．AmtrakCaliforniaZephyr. D．Canyon﹠Christmastrains.3、Whatisthesimilarityofthefourwintertrainrides?A．Theyareallavailableduringthewholeyear.B．Theyareintendedforyoungtravelenthusiasts.C．Theyofferthepassengersgoodchancesofskiing.D．Theyprovideaccesstowintersceneryontheway.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）Youcan’tseeyoursleepingpetsbrainwaves,butitsbehaviorcantellyouwhenyourcatmightbedreaming.Ifyouwatchclosely,you’llseethatasshefallsasleep,herbreathingbecomesslowandregularwithherbodystill.Shehasenteredthefirststageofsleep,calledslow-wavesleep.Afterabout15minutesyou’llnoticeachangeinherbreathing.Hereyesmoveunderherclosedlids,herpawstwitch(抽動)andsheflicks(尤指用手指或手快速地輕撫)anear.Shehasentereddreaming.Althoughshetwitchesandmakeslittlegrunting(嘟嘟)noises,messagesfromherbraintothelargemusclesinherlegsareblocked,soshecan’trunabout.Sheisinastateof“sleepparalysis(麻痹)”.MichelJouvet,aFrenchscientist,interruptedtheirsleepparalysis.Eventhoughtheywerecompletelyasleep,thedreamingcatsbegantorunforballsthatJouvetcouldn’tseeandarched(弓起)theirbacksatunseenenemies.Hefigureshewaswatchingthemactouttheirdreams!Obviously,thedreamingcatsseemedtobepractisingimportantcatskills:following,pouncing(猛撲),andfighting.Inanotherstudy,MattWilsonrecordedratsbrainwaveswhiletheylearnedmazes(迷宮).Oneday,heleftthebrain-wave-recordingmachineonwhiletheratsfellasleep.ThepatternofbrainwavesinthesleepingratsmatchedthepatternfromthemazesocloselythatWilsoncouldfigureoutexactlywhichpartofthemazeeachratwasdreamingabout!Manyresearchersnowthinkthatinbothpeopleandanimals,onepurposeofdreamsistopractiseimportantskillsandfigureoutrecentlearning.Thismayexplainwhysomanypeopledreamaboutfightingandescaping,skillsthatwereprobablyimportanttoourancestors,andwhydreamingaffectsourabilitytolearn.Doallanimalsdream?Fromlookingatthebrainwavesofsleepinganimals.Howoftenanimalsdreamseemstobetiedtobodysize.Catsdreamaboutevery15minutes,miceevery9minutes,andelephantsevery2hours.Andthoughcowsandhorsesusuallysleepstandingup,theyonlydreamwhenlyingdown.1、WhatdoesMichelJouvetfindinhisstudy?A．Thedreamingcatsareinastateofbodyparalysis.B．Thedreamingcatsoftenpractisetheirimportantskills.C．Theeyesofdreamingcatsmovedwhilebodiesarestill.D．Themusclesofthedreamingcatsareblockedtomove.2、Whatcanyouknowaboutdreamingfromthepassage?A．Dreamingalotcanhelphumanslearnmore.B．Learningmazesisthebasicskillforcatstolearn.C．RatsoftendreamstomakecertaintheirrecentlearningD．Fightingandescapingarenotimportantskillsforancestors.3、Whichanimalmaydreammostfrequently?A．Rats. B．Dogs.C．Cows. D．Elephants4、Howdoestheauthordevelophispassage?A．Bymakingcomparisons. B．ByusingfiguresC．Bytellingstories D．Byshowingfacts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）IunderstoodChineseculturesonlyseenonTVandinbooksbutonlymadelittleheadwaylearningChinese.1,itdidnotmatter.Thepatience,generosityand2ofstrangersleftmepleasantlysurprisedwithBeijing.I3neededChineseOnmybirthday,forexample,Iwas4inthecity.EveryoneIknewwasoutoftown,soIdecidedto5adayofitmyself.Iwentshopping.Afterthreehappyhours,Iwentconfidentlyuptothe6andforaminute,I7everyonespokeEnglish.Butafter8myitems,thewomanbehindthecounterspokeinChinese,andallIcoulddowasstare9.Ithoughtshewasaskingcashorcard,soIpulledoutsomenotes,butshe10herhead.Westoodthereforafewminutes11anothercashiersaid,“Acoupleofyour12arepartofthesaleandcannotbeexchangedor13oncebought.”Anotherday,IwenttothepolicestationasIhadlostmywalletina14landDuringthat20-minutetalk,Irealizedtheeagernessand15ofpeople.SpeakinginamixofChineseandEnglish,theyoungpoliceofficerdidallhecouldtoputme16.Heknewthatasforeignerswewerenervousatthepolicestation,sohesmiledandspoke.Intheend,the17tookacoupleofhoursandthewalletdidnot18anymore.Ihadmadeafriend.Therearemany19andunforgettablememoriesofgettingbywithout20,butperhapswithoutthefriendshelp,Beijingmaynothavebeensoeasytonavigate.1、A．Lastly B．However C．Instead D．Thus2、A．sacrifice B．efforts C．warmth D．promise3、A．rarely B．basically C．completely D．totally4、A．still B．even C．only D．a(chǎn)lone5、A．make B．need C．do D．plan6、A．exit B．store C．counter D．hall7、A．realized B．recognized C．guaranteed D．a(chǎn)ssumed8、A．ringingup B．showingup C．a(chǎn)ssessing D．examining9、A．poorly B．helplessly C．quickly D．patiently10、A．waved B．nodded C．shook D．hung11、A．until B．a(chǎn)s C．a(chǎn)fter D．for12、A．expenses B．purchases C．supplies D．parcels13、A．a(chǎn)ccepted B．canceled C．returned D．broken14、A．foreign B．same C．different D．new15、A．happiness B．wisdom C．excitement D．kindness16、A．forsure B．a(chǎn)tease C．inorder D．inplace17、A．incident B．procedure C．question D．survey18、A．matter B．stay C．change D．return19、A．interesting B．a(chǎn)musing C．pleasant D．a(chǎn)dmiring20、A．cellphone B．policeofficers C．Chinese D．cashiers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?shù)膯卧~或括號內(nèi)單詞的正確形式。27．（15分）Ifyoumakeacareerchoicewhileyouarestillinhighschool,youwillsavetimeandmoneyinthelongrun.Studentswhodonotplanaheadmaydelaystartingcollegeortakeextracourses1．(give)themselvestimetomakeuptheir2．(mind).U.S.NewsandWorldReports3．(say)thattheaverageannualtuitionatafour-yearcollegeis$35,000.Ifyouspend4．extrayearinschool,youmayhavetotakeoutadditionalloansorpayextramoneytocoverthecost.Choosingacareerwhileyouareinhighschoolalsogivesyoutimetoexploreyour5．(choose)industry.Ifyoufindacareer6．soundsinteresting,youcanfollowsomeoneinthefieldandseewhatitis7．(real)liketohavethatjob.Youcanalsoapply8．a(chǎn)chancetogetaninformalpositionrelatedtoyourdesiredindustry.Thiswillhelpyoubuildaprofessionalnetworkevenbeforeyougraduatefromhighschool.Professionalcontactsarevery9．(value),especiallywhenyouarelookingforajobinyourfield.Ifyoudoasmuchasyoucantobuildanetwork10．youarereadyforajob,youwillbemorelikelytosucceed.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）短文改錯（共10小題，每小題1分，滿分10分）假如英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文。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：在錯的詞下面劃一橫線，并在該詞下面寫出改正后的詞。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。MyparentsdecidedtomakeatriptoBeijing、Whentheytoldmetheirdecisions,Iwassodelighted、Butmymotherbecameworriedwithherflower,fornobodywouldtakecareofit、Seeingtheworryingexpressiononherface,suddenlyIrememberedthatanarticleinamagazineIhadreadearlier、It’ssuggestedinthearticlethatpeopleusedapieceofclothtotakecareoftheirplantswhenyouareaway、Onthedaywesetoff,Ifoundapieceofclothandputoneendofthemintothebasin,whichisfullofwater,andtheotherendintotheflowerpot、Threedayslater,whilewecamebackfromBeijing,flowerwasstillalive、第二節(jié)書面表達（滿分25分）29．（25分）假設(shè)你是李華,你的英國朋友Peter來信向你咨詢?nèi)绾尾拍軐W(xué)好中文。請你根據(jù)下列要點寫封回信。要點:1.參加中文學(xué)習(xí)班

2.看中文書刊、電視

3.學(xué)唱中文歌曲

4.其他注意:1.詞數(shù)120左右2.可適當增加細節(jié),以使行文連貫。DearPeter,________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________BestWishes.Yours,LiHua

2023學(xué)年模擬測試卷參考答案（含詳細解析）第一部分（共20小題，每小題1.5分，滿分30分）1、C2、A3、A4、D5、B6、A7、A8、C9、D10、A11、B12、B13、B14、D15、B16、B17、A18、C19、D20、A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、D2、B3、D4、A22、1、D2、B3、C23、1、B2、C3、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）thattherearenowover500,000piecesofman-madetrashorbitingtheEarthatspeedsofupto17,500milesperhour.Thejunkvariesfromtinypiecesofpaintchippedoffrocketstocameras,hugefueltanks,andevenodditemslikethemillion-dollartoolkitthatastronautHeidemarieS