2022年廣東省潮州市名校高三第六次模擬考試英語(yǔ)試卷含答案

2021-2022高考英語(yǔ)模擬試卷注意事項(xiàng):1．答題前，考生先將自己的姓名、準(zhǔn)考證號(hào)碼填寫清楚，將條形碼準(zhǔn)確粘貼在條形碼區(qū)域內(nèi)。2．答題時(shí)請(qǐng)按要求用筆。3．請(qǐng)按照題號(hào)順序在答題卡各題目的答題區(qū)域內(nèi)作答，超出答題區(qū)域書寫的答案無(wú)效；在草稿紙、試卷上答題無(wú)效。4．作圖可先使用鉛筆畫出，確定后必須用黑色字跡的簽字筆描黑。5．保持卡面清潔，不要折暴、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．—Wouldyoumindmycomingoverandhavingalookatyourrehearse(排練)?Mylittleson’scuriousabouttheperformance.—_______.Justcomeround.A．Yes,Ido B．Nevermind C．Notatall D．Yes,please2．Whathelikedtodowastotakeanideaand______itbyfindingeverypossibleconsequence.A．squeeze B．wrestleC．switch D．shrink3．Mysistermethiminthestreetyesterdayafternoon,sohe______yourlecture.A．shouldn’thaveattended B．couldn’thaveattendedC．mustn’thaveattended D．needn’thaveattended4．Thepilotaskedallthepassengersonboardtoremain________astheplanewasmakingalanding.A．seat B．seatingC．seated D．tobeseating5．—FlightMU257_______________.Imustbeoffnow.—Haveanicetrip.A．isbeingannouncedB．hasannouncedC．wasannouncingD．hadbeenannounced6．Don’tthrowawaytheoldbooks．Givethemto____needsthem．A．whoever B．a(chǎn)nyone C．who D．whomever7．—Lookingbackon_____inyearsgonebyandthegoodtimethatIhadmakestodayseemrathersad.—Absolutely.Somuchhaschanged.A．howitwas B．whoitwas C．howwasit D．whowasit8．Trytobeindependent,foryourparentscan'tdo________foryouallyourlife.A．something B．nothingC．everything D．a(chǎn)nything9．—Haveyouheardofyesterday'sgasexplosion?—Yes.Onlytwoofthe35minersatthescene________tohavemadeitoutsafely.A．havethoughtB．a(chǎn)rethoughtC．hadthoughtD．werethought10．Thefirstdecadeinthe21stcentury_______therapidriseofChinaasaworldeconomicpower.A．witness B．haswitnessed C．willwitness D．havewitnessed11．Don'tyouthink_______ofgreatimportancethatweshouldkeepfitbytakingexerciseregularly?A．this B．that C．which D．it12．(2015·北京)___________theearlyflight,weorderedataxiinadvanceandgotupveryearly.A．Catching B．CaughtC．Tocatch D．Catch13．-Lateagain！Where_____________？-Sorry，I________________intheheavytraffic，orIwouldhavebeenhereearlier.A．wereyou；havegotstuck B．haveyoubeen；havegotstuckC．wereyou；gotstuck D．haveyoubeen；gotstuck14．Lindarealizedshewasinthewrongandpromisedto________anewleaf.A．takeoverB．turnoverC．getoverD．goover15．Nowadays,moreandmoreyoungladies,figuresmostarefineenough,aregoingonadiet.A．who B．whoseC．ofwhose D．ofwhom16．Citizensare_____toexercisetheirrights,butundernocircumstancescantheyviolateotherpeople’srights.A．ontrack B．onscheduleC．a(chǎn)tease D．a(chǎn)tliberty17．Thestudentshavedecidedonafinaldatebywhicheveryone________readingthebooksassignedbytheirprofessor.A．finishes B．finishedC．havefinished D．willhavefinished18．Wehavealreadydiscussedthisplan_____,sonextweshouldsparenoefforttocarryitout.A．a(chǎn)tlength B．a(chǎn)trandom C．a(chǎn)tease D．a(chǎn)tbest19．Ihopewhenyoucometomorrow,you_____thereadingandhavesomethingtoshare.A．did B．a(chǎn)redoingC．willbedoing D．willhavedone20．________twohoursdailyhasmadeconsiderabledifferencetomyphysicalcondition.A．TowalkB．WalkingC．WalkedD．Havingwalked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）Forthepast15years,factoryownerKamalParmarhasbeenrunninganafter-schoolprogramforslumkidsinAhmedabad,India,helpingthemwithbasicskillslikereadingandwritingandevenpreparingfortheirschooltests.Parmar’sstorybeganoneafternoon15yearsago.Hestoppedafewkidsreturninghomefromthelocalschoolandtooktheirexampaperandaskedthemafewquestions.Shockingly,hemadeashockingdiscovery--thestudents,eventheolderones,knewnothingaboutreadingexceptthealphabet.Andthatlefthimthinkingthatsomethingshouldbedoneforthesechildren.Soheinvitedthekidstovisithisworkshopeveryevening,wherehesetupatemporaryclassroomwithmetaldesks.Theshabbyschoolstartedoffwith10students.Today,theFootpathSchoolhasatotalof155studentsandmanyofthekidsthatParmarhastaughtinthepast15yearshavegonetoattendcollegeandbuildsuccessfulcareers.Despitehavingstudiedonlytilltheseventhgrade,hehasbeenabletoteachthekidsbyinventingcreativetechniques.Heasksthemtoreadfirstandthentoformquestionsontheirownandreadthemout.Inthisway,manykidslearnallsevensubjectsinsixmonths.Parmar’sfamilyareverysupportiveofhisprojectandareproudtoseehowmuchofanimpacthehashadonthekids.Hisstudentslovehim.Tenofhisex-studentsarecurrentlyservingasteachersattheschoolandhedoesn’thavetoemployanyteachers.Forthosewhoareinspiredbyhisstory,butcan’tactuallyvolunteeratschool,Parmarhasasimplepieceofadsice:“Trytoeducatejustonechildayear,andseethedifferenceitmakestothesociety.”1、WhydidParmarstarttheschool?A．Toearnsomeextramoney.B．Tobecomeagoodteacher.C．Tohelpthepoorkidswiththeireducation.D．Tomakehimselffamous.2、Whatdoestheunderlinedword“that”inparagraph2referto?A．Thestudents’poorreadingability.B．Thestudents’badlivingconditions.C．Thestudents’terribleschoolexamresult.D．Thestudents’lackofbasiclifeskills.3、WhichwordscanbeusedtodescribeParmar?A．DiligentandintelligentB．SelflesslyandimaginativeC．ModestandpatientD．Humorousandrich4、Parmar’sadviceinthelastparagraphistocallonmorepeopleto.A．teachpoorkidsB．workinhisownfactoryC．contributemoremoneytoschoolsD．listentohisstories22．（8分）Whenmyfathermarriedmymotherin1943,hegavemymothera1937crowncoinandtoldhertokeepitinthebackofherpurseandnottospendit.Thiswouldmeanthatshealwaysfeltthatshewasprotectedandwouldalwayshavemoneyifshereallyneededit.WhenIwasmarriedin1970myhusbandwhohadheardthisstory,obtaineda1937crowncoinformeandIhavealwayskeptitinmywallet,andIhavealwayshadenoughformyneeds.Afriendrecentlyfellonhardtimes,partlythroughexternal(外部的）circumstancesandpartlythroughpoorplanning.FriendsandIhaveloanedhermoney,paidherbills,givenherfood,andeventriedtoteachherbudgettechniques,butnoneofthemhasbeenasolution.Shehasjustslippeddeeperanddeeperintofinancialtroubleanddepression.Lastweekshelookedpaleandunwell,verydepressedandhopeless,verysadforafriendtoseeandIthenthoughtabouthowthecrowncoin,aphysicalreminderofanother'scareandlovehadprotectedme,soIwenttothebankfora$100dollar-bill.Itoldmyfriendthestoryandaskedhertokeepthe$100inthebackofherwallet.Itturnedoutthatshedidn'thaveawallet,sosheputthemoneyinalittlepencilcasewhereshekepthercoins.Sheimmediatelyfeltbetter—“Ifeelrich,andthankyouforbeingagoodfriend,”shesaid,andwewerebothabitteary.IwenthomeandrememberedalittlewalletIhadthatI’dneverused,andthought,“I’llgivethattomyfriend.”Iopenedit,andinside,found$100.1、Whatdidthe1937crowncoinfromtheauthor’sfathermeantohermother?A．Hisconcernforher. B．Hispityandprotectionforher.C．Hiscareandloveforher. D．Hisprideandrespectforher.2、Wheredidtheauthor’sfriendkeepthe$100dollar-bill?A．Inthebackofherwallet. B．Inalittlepencilcase.C．Inthepocketofherraincoat. D．Inthelayerofhersuitcase.3、Whatcanbeinferredfromthelastparagraph?A．Theauthorbecamerichallofasudden.B．Theauthor'sfriendwouldreceiveawalletasagift.C．Theauthor'sfriendwasnottouchedbyherstory.D．Theauthorfeltuncomfortablewhenreceivingthebill.4、Whatcanbethebesttitleforthetext?A．Acrowncoin B．ThehelptoafriendC．Ahardlife D．Agiftfrommyfather23．（8分）TheAmericannewspaperhasbeenaroundforaboutthreehundredyears.In1721,theprinterJamesFranklin,Benjamin’solderbrother,startedtheNewEnglandCourant,andthatwaswhatwemightrecognizetodayasarealnewspaper.Hefilledhispaperwithstoriesofadventure,articlesonart,onfamouspeople,andonallsortsofpoliticalsubjects.ThreecenturiesaftertheappearanceofFranklin’sCourant,fewbelievethatnewspapersintheirpresentprintedformwillremainaliveforlong,Newspapercompaniesarelosingadvertisers,readers,marketvalue,andinsomecases,theirsenseofpurposeataspeedthatwouldnothavebeenimaginablejustseveralyearsago.ThechiefeditoroftheTimessaidrecently,“Atplaceswheretheygather,editorsaskoneanother,‘Howareyou?’,asiftheyhavejustcomeoutofthehospitaloralostlawcase.”AnarticleaboutthenewspaperappealedonthewebsiteoftheGuardian,undertheheadline“NOTDEADYET.”Perhapsnot.buttheriseoftheInternet,whichhasmadethedailynewspaperlookslowandoutofstepwiththeworld,hasbroughtaboutarealsenseofdeath,SomeAmericannewspapershavelost42%oftheirmarketvalueinthepastthreeyears.TheNewYorkTimesCompanyhasseenitsstock（股票）dropby54%sincetheendof2004,withmuchofthelosscominginthepastyear.AmanageratDeutscheBanksuggestedthatstock-holderssellofftheirTimesstock.TheWashingtonPostCompanyhaspreventedthetroubleonlybychangingpartofitsbusinesstoeducation;itstestingandtest—preparationservicenowbringsinatleasthalfthecompany’sincome,1、WhatcanwelearnabouttheNewEnglandCourant?A．Itismainlyaboutthestockmarket.B．Itcarriesarticlesbypoliticalleaders.C．Itmarksthebeginningofnewspapers.D．ItremainsasuccessfulnewspaperinAmerica.2、Whatcanweinferaboutthenewspapereditors?A．Theyoftenacceptreaders’suggestions.B．Theycawalotabouteachother’shealth.C．Theystopdoingbusinesswithadvertisers.D．Theyfacegreatdifficultiesintheirbusiness.3、Whichofthefollowingfoundanewwayforitsdevelopment?A．theWashingtonPost. B．TheGuardian.C．TheNewYorkTinier. D．NewEnglandCourant.4、Howdoestheauthorseemtofeelaboutthefutureofnewspapers”?A．Satisfied. B．Hopeful.C．Surprised. D．Worried.24．（8分）HereisarecordofthediscussionaboutAI(artificialintelligence)conductedbyseveralscientists:ScientistA:IwouldsaythatwearequitealongwayoffdevelopingtheAI,thoughIdothinkitwillhappenwithinthenextthirtyorfortyyears.Wewillprobablyremainincontroloftechnologyanditwillhelpussolvemanyoftheworld’sproblems.However,noonereallyknowswhatwillhappenifmachinesbecomemoreintelligentthanhumans.Theymayhelpus,ignoreusordestroyus.ItendtobelieveAIwillhaveapositiveinfluenceonourfuturelives,butwhetherthatistruewillbepartlyuptous.ScientistB:Ihavetoadmitthatthepotentialconsequencesofcreatingsomethingthatcanmatchorgobeyondhumanintelligencefrightenme.Evennow,scientistsareteachingcomputershowtolearnontheirown.Atsomepointinthenearfuture,theirintelligencemaywelltakeoffanddevelopatanever-increasingspeed.Humanbeingsevolvebiologicallyveryslowlyandwewouldbequicklysubstituted.Intheshortterm,thereisthedangerthatrobotswilltakeovermillionsofhumanjobs,creatingalargeunderclassofunemployedpeople.Thiscouldmeanlarge-scalepovertyandsocialunrest.Inthelongtermmachinesmightdecidetheworldwouldbebetterwithouthumans.ScientistC:I’mamemberoftheCampaigntoStopKillerRobots.ForgetthemovieimageofaterrifyingTerminatorstampingonhumanskullsandthinkofwhat’shappeningrightnow:militarymachineslikedrones,gunturretsandsentryrobotsarealreadybeingusedtokillwithverylittlehumaninput.Thenextstepwillbeautonomous“murderbots”followingordersbutfinallydecidingwhotokillontheirown.Itseemscleartomethatthiswouldbeextremelydangerousforhumans.Weneedtobeverycautiousindeedaboutwhatweaskmachinestodo.1、WhatisScientistBworriedabout?A．AItechnologywilldestroytheearth.B．Robotswilltaketheplaceofhumans.C．Computerscan’tthinkbythemselves.D．Humanswillbeunhappywithoutmachines.2、Whatdoestheunderlinedword“this”inthelastparagraphreferto?A．IlaunchedthecampaigntoStopKillerRobots.B．WeforgetthemovieimageofaterrifyingTerminator.C．“Murderbots”willbeagainsthumans’orders.D．“Murderbots”can’tdecidebythemselves.3、WhichstatementisCORRECTaccordingtotherecord?A．TheemploymentwillbeaffectedbyAItechnologyinthefuture.B．ScientistAthinksAItechnologywillneverdevelop.C．“Murderbots”willfollowtheordersoftheirmanufacturersinthewars.D．AllthethreescientistsagreethatAItechnologywillbenefithumanbeings.4、Whoagree(s)AIhasmorenegativeaspectsthanpositiveaspects?A．ScientistA．B．ScientistsB&C．C．ScientistB．D．ScientistsB&A．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（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．Howtotakeaplane第三部分語(yǔ)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）Everybodyknowshowtolearn.Learningisanaturalthing.Itbeginsthe1weareborn.Ourfirstteachersareourfamilies.Athomewelearntotalkandto2andfeedourselves.Welearntheseandotherskillsby3.Thenwegotoschool.Ateachertellsus4tolearnandhowtolearn.Manyteachersteachus,andwepassmanytestsandexams.Thenpeoplesayweare5Arewereallyeducated?Let's6therealmeaningoflearning.Knowingfactsdoesn't7beingabletosolveproblems.Solvingproblemsrequirescreativity,notjustagood8Somepeoplewhodon’tknowmany9canalsobegoodatsolvingproblems.HenrFordisagood10.Heleftschoolattheageof15.Later,whenhiscompanycouldn’tbuildcars11enough,hesolvedtheproblem.He12oftheassemblyline.Todaytheanswerseems13Yet,justthinkofthemanyuniversitygraduateswho14solveanyproblems.Whatdoesagoodteacherdo?Doeshe15studentsfactctremember?Well,yes,wemustsometimesrememberfacts.Butagoodteacher16howtofindanswers.Hebringsustothestreamofknowledgesowecanthinkforourselves.Whenweare17,weknowwheretogo.Truelearningcombinesintakewithoutput.Wetakeinformation18ourbrains.Thenweuseit.Thinkofa19;itstoresalotofinformation,butitcan’tthink.Itonlyobeyscommands.Apersonwhoonlyremembersfactshasn’treallylearned.Learningtakes20onlywhenapersoncanusewhatheknows.1、A．month B．minute C．time D．day2、A．wear B．puton C．haveon D．dress3、A．a(chǎn)sking B．listening C．following D．drilling4、A．what B．when C．that D．who5、A．controlled B．educated C．suffered D．passed6、A．pickup B．turnaway C．setout D．thinkabout7、A．mean B．say C．suggest D．show8、A．word B．thing C．memory D．condition9、A．people B．facts C．techniques D．ways10、A．learner B．teacher C．example D．driver11、A．new B．fast C．beautiful D．cheap12、A．complained B．heard C．talked D．thought13、A．ordinary B．strange C．simple D．special14、A．never B．a(chǎn)lmost C．seldom D．ever15、A．make B．understand C．master D．give16、A．knows B．shows C．orders D．encourages17、A．thirsty B．tired C．bored D．free18、A．of B．for C．a(chǎn)bout D．into19、A．radio B．computer C．record D．machine20、A．measures B．notes C．place D．time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）TheteacultureofChinais1．（amaze）andhasalonghistory．TeadrinkingwaswidespreadinChinaforaboutonethousandyearsbefore2．（appear）inEurope．TeadrinkinginChinaenjoyswide3．（popular）．Manypeopletodaygotoexpensivelydecoratedteahousestotalkbusiness．However，teadrinkingisverycomplex．4．pleasantexperienceofteadrinkingisuptomanyfactors（因素）．Itstartswiththesurroundings．Inthepast，teadrinkingtookplaceinanenvironment5．peoplecanenjoyantiquebeautyandnaturalbeautyandrelax6．（they）．Nowadays，inordertocreatesuchatmosphere，teahouses7．（decorate）withtraditionalpaintingsandfurniture．Besides，thereareoften8．（performance）oftraditionalChinesemusicalinstruments，suchastheguzheng，pipaanderhu．Blackteatogether9．greentea，OolongteaandPu'ertearanksthetopfourfavourites．Thefirstthreetypesofteaareprocessedusingsimilarmethodsbutpu'erteaismadewitha10．（total）differentmethod．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）短文改錯(cuò)假定英語(yǔ)課上老師要求同桌之間交換修改短文，請(qǐng)你修改你同桌寫的以下作文，文中共存10處語(yǔ)言錯(cuò)誤，每句中最多有兩處，每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。增加:在缺詞處加一個(gè)漏字符號(hào)（^），并在其下而寫出該加的詞。刪除:把多余的詞用斜線(\)劃掉。修改:在錯(cuò)的詞下面畫一橫線，并在其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。DearSally,Doyourememberme?WewereusedtogotoAllendalesSchooltogether、YouwerethefirstpersonIgettoknowthere、Wesatnexteachotherinclass,butlatertheteachermademesitapartbecausewewere,alwayschattingsomuch、Wealwayswenttoyourhouseafterschoolandlistenedtomusicforhours、We’dgetalltheBeatlesrecordassoonastheycameout、Onceweateallthefoodinyourfridgeandyourmotherwasanger、IstillseePenny,andshe’sstillasmadlyasever、She’salwaystalkingabouthavingtheschoolreunion、Soifyou’reinteresting,dropmealine、Lookingforwardtohearfromyou、Youroldschoolmate,Alice第二節(jié)書面表達(dá)（滿分25分）29．（25分）假設(shè)你是李華，你的美國(guó)網(wǎng)友看完“哪吒之魔童降世”（Nezha）電影海外版之后非常喜歡，寫信想請(qǐng)你再推薦一部中國(guó)電影，請(qǐng)你根據(jù)以下內(nèi)容給他回信。內(nèi)容包括：1.表示高興;2.推薦一部電影(電影名字可用拼音表達(dá));3.推薦的理由。（至少2條）注意：1.詞數(shù)100左右；可以適當(dāng)增加細(xì)節(jié)，已使行文連貫；2.開頭及結(jié)尾為你寫好，不計(jì)入總詞數(shù)。DearDavid,____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________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、C2、B3、B4、C5、A6、A7、A8、C9、B10、B11、D12、C13、D14、B15、C16、D17、D18、A19、D20、B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、C2、A3、B4、A22、1、C2、B3、B4、A23、1、C2、D3、A4、D24、1、B2、C3、A4、B25、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-dollarto