2025屆河北省秦皇島中學(xué)高三英語第一學(xué)期期末質(zhì)量跟蹤監(jiān)視試題含解析

2025屆河北省秦皇島中學(xué)高三英語第一學(xué)期期末質(zhì)量跟蹤監(jiān)視試題注意事項(xiàng)：1．答卷前，考生務(wù)必將自己的姓名、準(zhǔn)考證號(hào)填寫在答題卡上。2．回答選擇題時(shí)，選出每小題答案后，用鉛筆把答題卡上對(duì)應(yīng)題目的答案標(biāo)號(hào)涂黑，如需改動(dòng)，用橡皮擦干凈后，再選涂其它答案標(biāo)號(hào)?；卮鸱沁x擇題時(shí)，將答案寫在答題卡上，寫在本試卷上無效。3．考試結(jié)束后，將本試卷和答題卡一并交回。第一部分（共20小題，每小題1.5分，滿分30分）1．Theyoungviolinistisveryexcitedbecausetheconcertgivenbyhimhasneverbeen_____.A．successful B．moresuccessfulC．mostsuccessful D．themostsuccessful2．—MayIhelpyou?Youseemtobehavingsomeproblems.—______,thanks.IthinkIcanmanage.A．Allright B．NoproblemC．It’sallright D．There’snoway3．---IwenttoseeTheWanderingEarthlastnight.Itwasfantastic!---Youweresolucky!HowIwishI_____thetickettoo.A．get B．gotC．hadgot D．wouldget4．—Tony_______whatIdidannoyingthoughhedidn’tsayanything.—Soyouthinkyouwillhavetomakeanapology?A．couldfind B．shouldhavefoundC．mightfind D．musthavefound5．Whenyouaredressedinthelateststyle,dancingtothemostfashionablemusicafterwatchingthelatestfilm,youfeelgreat,______? A．a(chǎn)ren'tyou B．don'tyou C．doyou D．a(chǎn)reyou6．John'ssuccesshasnothingtodowithgoodluck.Itisyearsofhardwork_________hasmadehimwhatheistoday.A．what B．whichC．where D．that7．Itissaidthattheonlysurvivorinthecarcrashwasbadlyinjured.However,somehowthedoctorsmanagedtohelphim______.A．pullthrough B．putthrough C．lookthrough D．breakthrough8．Afterhavingsomealcohol,driverstendtospeedwhenpassingstreetswithlesspeople.A．pullup B．putup C．riseup D．pickup9．Thedebateherewillbelimitedintwomainrespects，________thetimeavailable.A．inviewofB．inreturnforC．inadditiontoD．incomparisonwith10．You________havebookedtheticketsinadvance;therewereplentyleft.A．needn’t B．can’tC．shouldn’t D．mustn’t11．---Let'swalktothatvillagetogether.---__________.Howcanwetwogirlsdothatinthedark？A．Iagreewithyou. B．That'sagoodpoint.C．Youmustbejoking！ D．That'snotyouropinion！12．Witheconomyincreasingsteadily,people______enjoyalifeofhigherquality.A．should B．can C．may D．must13．—Didn’tyougofishingwithyourfriendslastSunday?—No.I______tothenursinghomeasusual.A．went B．go C．havegone D．hadgone14．—NextMondayismybirthday.—Isthatso?______A．Ican’tbelievemyears.

B．I’msogladtohearthat.C．Whatpresentsdoyouwant?

D．Manyhappyreturnsoftheday!15．_______,Ihaveneverseenanyonewho'sascapableasJohn.A．AslongasIhavetraveledB．MuchasIhavetraveledC．NowthatIhavetraveledsomuchD．AsIhavetraveledsomuch16．TheeducationsysteminChinaisverydifferentfrom________intheUSA．A．oneB．itC．thoseD．that17．Wearecommittedtocreatingaworldfreefromthehomelessandthehopeless,aworld_______eachandeverycornerisatrueparadise.A．that B．whichC．ofwhich D．fromwhere18．－Doyoureallymeanitwhenyousayhewillagoodpresident?A．judge B．duit C．turn D．Serve19．Nowadays,moreandmoreChinesehomeshavethetechnologyandequipment______todoonlineshopping.A．needed B．needingC．need D．toneed20．Inthatremotearea,thetrees_____bythevolunteersaregrowingwell.A．plantedB．plantingC．beingplantedD．toplant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）Youcaneithertravelorread,buteitheryourbodyorsoulmustbeontheway.Thepopularsayinghasinspiredmanypeopletoreadorgosightseeing.Traveling,justlikereading,isarefreshingjourneyfromthebusyworld.Books,brainfood,cankeepyoucompanyonyourtravel.1.OntheRoad,1957,byJackKerouacThebookisagloballypopularspiritualguidebookaboutyouth.ThemaincharacterinthebookdrivesacrosstheUScontinentwithseveralyoungpeopleandfinallyreachesMexico.Aftertheexhaustingandexcitingtrip,thecharactersinthebookbegintorealizethemeaningoflife.ThebookcanbeagoodpartnerwithyoutoexploretheUnitedStates.2.LifeisElsewhere,1975,byMilanKunderaJean-JacquesRousseauoncesaid,“Manisbornfree,andeverywhereheisinchains.”Thebooktellsayoungartist’sromanticbutmiserablelife,abouthowhereads,dreamsandhasarelationship.Experiencetheartist’spassionatelifeinthebookduringatriptoCentralEurope.Thebookinvitesyoutodeeplyreflectonyourcurrentlife.3.TheStoriesoftheSahara,1967,bySanmaoThebooknarratestheauthor’ssimplebutadventurouslifeintheSaharaDesert,whichseemsadesolateanddullplace.Thefancynaturalsceneryandlifethere,alongwiththeauthor’sromanticandintensiveemotionswillinspireyoutoexplorethemysteriousland.Readingthebookislikeparticipatinginadialoguewiththeauthor,whoissincereandhumorous.4.Lotus,2006,byAnnbabyThisnovelsetinTibet,tellsthreepeople’sstories,eachwiththeiruniquecharacteristics.Itrevealsmodernpeople’semotionsandinnerlife,theirconfusionaboutlove,andexplorationofBuddhism.ThebookisagoodpartnertobringyoutothescaredlandTibet.1、Whichbookisabouttheexplorationoflifevaluethroughajourney?A．OntheRoad. B．LifeisElsewhere.C．Lotus. D．TheStoriesoftheSahara.2、WhosebookissuitabletoaccompanyyourtriptoGermany?A．MilanKundera’s. B．Sanmao’s.C．Annbaby’s. D．JackKerouac’s.3、Whatcanwelearnfromthetext?A．TheStoriesoftheSahararecordsthedialoguesbetweentheauthorandherreaders.B．LifeisElsewherepromotesreaders’considerationoftheirpresentlives.C．LotusisareligiousbookwhichexploresBuddhistcultureinTibet.D．OntheRoadisintendedtoadviseaclassicroutefordrivingacrosstheUS.4、Whatistheauthor’spurposeinwritingthetext?A．Toadvertisefourtravelguidebooks.B．Tointroducefournovelsabouttraveling.C．Torecommendfourbookslinkedtodestinations.D．Toarousereaders’interestinreadingbooks.22．（8分）Theterm"healthyobesity"hasgainedvalueoverthepast15years,butscientistshaverecentlyquestioneditsveryexistence."Ournewfindingssuggestthathealthmeasuresmaybenecessaryforallobese（肥胖的）individuals,eventhosepreviouslyconsideredtobemetabolically（代謝的）healthy,"saysstudyfirstauthorMikael,"Sinceobesityisthemajordriverchanginggeneexpressioninfatcells,weshouldcontinuetofocusonpreventingobesity."Obesityhasbeenaglobalproblem,affectingapproximately600millionpeopleworldwideandincreasingtheriskofheartdisease,stroke,cancer,andsoon.Butinthe1970sand80s,expertsbegantoquestiontheextenttowhichobesityincreasestheriskforthesedisorders.Laterstudiesinthelate90sandearly2000sshowedthatsomeobesepeopleshowarelativelyhealthylife.However,therearenoacceptedmeasuresformeasuringmetabolicallyhealthyobesity,andwhetherornotsuchathingexistsisnowupfordiscussion."Ourstudysuggeststhattheideaofmetabolicallyhealthyobesitymaybemoredifficultthanthought,"Mikaelsays,"Theredoesn’tappeartobeaclearlinethatseparatesobesesubjectswithhighorlowinsulin（胰島素）sensitivity,indicatingthatobesityisthemajordriverexplainingthechangesingeneexpression."Onelimitationofthestudyisthatitexaminedgeneexpressiononlyinwhitefatcells,notothertypes.Moreover,alloftheobesesubjectswerescheduledtoexperienceobesityoperations,sothefindingsmayonlyapplytopeoplewithsevereobesity.Infutureresearch,Mikaelandhisgroupwilltrackthestudypatientsaftersurgerytodeterminewhetherweightlossnormalizesgeneexpressionresponses.Theywillalsolookforspecificgeneslinkedtoimprovedmetabolichealthinthesepeople.Inthemeantime,thestudyhasanimportanttake-homemessage."Obesepeoplemaynotbeasmetabolicallyhealthyaspreviouslybelieved,"Rydensays.1、Whatdoestheunderlinedphrase"healthyobesity"mean?A．Itcanbehealthywithobesity.B．Obesityisnecessarytobehealthy.C．Unhealthypeoplehavenoobesity.D．Healthhassomethingtodowithobesity.2、Whatleadstohealthyobesityfailingtoprovetrue?A．Lackofrelatedpatients.B．Lackofgeneticevidence.C．Lackofresearchfunding.D．Lackofneededstandards.3、Whatadvicecanreadersgetfromthepassage?A．Peopleshouldhaveahealthylifestyle.B．Peopleshouldacceptobesityinaway.C．Peopleshouldkeepabalancedweight.D．Peopleshouldavoidobesityoperations.4、Whichcanbestdescribetheauthor'sintentioninwritingthepassage?A．Compare,analyzeandconclude.B．Show,appreciate,andpersuade.C．Introduce,argueandadvertise.D．Present,informandinspire.23．（8分）LovellCampsKids’ClubinSwitzerlandLovellCampsKids’ClubisanEnglishlanguageMontessori（蒙臺(tái)梭利）styleclub.Childrenwillenjoyawonderfulandsafelearningexperiencewhichincludeslanguageactivities,cooking,artsandcrafts,singing,dancing,etc.LearningoutsidetheclassroomplaysanecessaryroleatLovellCamps,makingchildrenexperiencetheoutdoors.Duringthesummermonthsthiscanincludevisitstolocalplaygrounds,farmsandindoororoutdoorswimmingpools.Wintertimegiveschildrenthechancetogoskiingandplayoutsideinthesnow.Admission:TheLovellCampsKids’Clubisforpre-schoolchildrenagedbetween2and5.What’sincluded:Feesinclude:Healthysnacksandschoolequipment.Ifyouchoosetheskiingactivity,feesincludetransportationtoandfromtheskihillandprofessionalskiinstructions.Feesdonotinclude:Skirentals,round-triptransportationfromKids’Clubtohomeandmedicalinsurance.Time:Kids’ClubisopenfromDecembertoMarchandinJulyandAugust.ItisclosedonMondaysduringtheyear.1、Whatisthespecialactivityinsummer?A．Gettingclosetoanimals. B．Swimminginthepool.C．Singinganddancing. D．Visitingfarms.2、LovellCampsKids’Clubisdesignedfor2-to5-year-olds____.A．whoaregoodatswimming B．whoenjoyoutdooractivitiesC．whowanttolearnskiing D．whoareinterestedinplayingsports3、Forwhichofthefollowingshouldkidspayextra?A．Medicalinsurance. B．Healthysnacks.C．Schoolequipment. D．Transportationtotheskihill.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(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．Howtotakeaplane25．（10分）Workisapartofliving—mygrandparentsunderstoodthat.Theylivedandworkedonafarmthathasbeeninmyfamilyfor150years.Theyraisedchickensforeggs,pigsandcattleformeat.Cowswerekeptformilkandthecream,fromwhichGrandmamadebutterandcheese.Whatlittleyardtheyhadbecameagarden.TheDepression（大蕭條時(shí)期）,therefore,didn’tmakemuchchangeintheirlives.Butitdidbringalotofmenoutofwork,driftingfromjobtojob,tothefarm.Thefirsttoshowupatthedoorofthekitchenwasamaninrags.Hetookoffhishatandquietlyexplainedthathehadn’teatenforawhile.Grandpastoodwatchinghimabit,thensaid,“There’sastackoffirewoodagainstthefencebehindthebarn（谷倉）.I’vebeenneedingtogetitmovedtotheothersideofthefence.Youhavejustaboutenoughtimetofinishthejobbeforelunch.”Grandmasaidasurprisingthinghappened.Themangotashineinhiseyesandhehurriedtothebarnatonce.Shesetanotherplaceatthetableandmadeanapplepie.Duringlunch,thestrangerdidn’tsaymuch,butwhenheleft,hisshouldershadstraightened.“Nothingruinsamanlikelosinghisself-respect,”Grandpalatertoldme.Soonafter,anothermanshowedupaskingforameal.Thisonewasdressedinasuitandcarriedasmalloldsuitcase.Grandpacameoutwhenheheardvoices.Helookedatthemanandthenofferedahandshake.“ThereisastackoffirewoodalongthefencedownbehindthebarnI’vebeenmeaningtogetitmoved.It’dsurebeahelptome.Andwe’dbepleasedtohaveyoustayforlunch.”Thefellowsethissuitcaseasideandneatlylaidhiscoatontop.Thenhesetofftowork.Grandmasaysshedoesn’trememberhowmanystrangerstheysharedamealwithduringthoseDepressiondays-orhowmanytimesthatstackofwoodgotmoved.1、Whenhewasaskedtomoveastackoffirewood,thefirstmanwhoaskedforamealgotashineinhiseyesforhewasgladthat.A．hehadfoundagoodjobB．hewouldhavesomethingtoeatC．hewouldnolongersufferfromtheDepressionD．hewouldgetwhathewantedwithoutlosinghisself-respect2、Thewriter’sgrandfatheraskedthosejoblessmentomovethestackoffirewoodbecause.A．hedidn’twantthemtohaveamealfreeofchargeB．hehadbeenneedingtogetitmovedC．hewantedtohelptheminhisownwayD．hewantedtoshowthemhiskindnessandrespect3、Thewriter’sgrandfatherwasallofthefollowingbut.A．kind B．thoughtfulC．wealthy D．sympathetic4、Thebesttitleforthestorywouldbe.A．TheDepression B．ThePleasureofHelpingOthersC．NoPains,NoGains D．Work-APartofLiving第三部分語言知識(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）Ifyouwanttolearnanewlanguage，theveryfirstthingtothinkaboutiswhy.Doyouneeditfora1reason，suchasyourjoboryourstudies？2perhapsyou'reinterestedinthe3，filmsormusicofadifferentcountryandyouknowhowmuchitwillhelptohavea4ofthelanguage.Mostpeoplelearnbestusingavarietyof5，buttraditionalclassesareanidealstartformanypeople.They6anenvironmentwhereyoucanpracticeunderthe7ofsomeonewho'sgoodatthelanguage.Wealllead8livesandlearningalanguagetakes9.Youwillhavemoresuccessifyoustudyregularly，sotrytodevelopa10.Itdoesn'tmatterifyouhaven'tgotlong.Becomingfluentinalanguagewilltakeyears，butlearningtogetbytakes11.Manypeoplestartlearningalanguageandsoongiveup.“I'mtoo12，”theysay.Yes，childrendolearnlanguagesmore13thanadults，butresearchhasshownthatyoucanlearnalanguageatany14.Andlearningisgoodforthehealthofyourbrain，too.I'vealsoheardpeople15aboutthemistakestheymakewhen16.Well，relaxandlaughaboutyourmistakes17you'remuchlesslikelytomakethemagain.Learninganewlanguageisnever18.Butwithsomeworkanddevotion，you'llmakeprogress.Andyou'llbe19bythepositivereactionofsomepeoplewhenyousayjustafewwordsin20ownlanguage.Goodluck!1、A．technical B．political C．practical D．physical2、A．After B．So C．Though D．Or3、A．literature B．transport C．a(chǎn)griculture D．medicine4、A．view B．knowledge C．form D．database5、A．paintings B．regulations C．methods D．computers6、A．protect B．change C．respect D．provide7、A．control B．command C．guidance D．pressure8、A．busy B．happy C．simple D．normal9、A．courage B．time C．energy D．place10、A．theory B．business C．routine D．project11、A．somerisks B．a(chǎn)lotless C．somenotes D．a(chǎn)lotmore12、A．old B．nervous C．weak D．tired13、A．closely B．quickly C．privately D．quietly14、A．a(chǎn)ge B．speed C．distance D．school15、A．worry B．hesitate C．think D．quarrel16、A．singing B．working C．bargaining D．learning17、A．if B．a(chǎn)nd C．but D．before18、A．tiresome B．hard C．interesting D．easy19、A．blamed B．a(chǎn)mazed C．interrupted D．informed20、A．their B．his C．our D．your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）TheAmberRoom1．(put)upin1709.Itusedtobelong2．FrederickWilliamI,thefirstKingofPrussia.PetertheGreatfellinlovewiththeroomonavisit,andin1716theKingofPrussiasentittoPetertheGreatasagift.TheAmberRoomwasshippedtoRussiain18largeboxesandputintheWinterPalaceinStPetersburgasapartofaEuropeanartcollection.Itwasfirstopenin1746intheWinterPalace,3．itwashousedtill1755.In1755,CzarinaElizabethorderedtheroom4．(move)totheCatherinePalaceinPushkin.AnItalian5．(art)BartolomeoFrancescoRastrelliredesignedtheroomtofitintoitsnewlargerspace,6．(use)extraamberfromBerlin.7．seemshardtobelievethatboxesofseveraltonsofambercouldgomissing,andmanyhistorianshavetriedtosolvethemystery.Mostofthembelieve8．theboxesweredestroyedintheSecondWorldWar.OneofthemoreextremetheoriesisthatStalin9．(actual)hadasecondAmberRoomandtheGermansstoleafake(贗品).ThehistoryofthenewAmberRoom,atleast,isknownforsure.Thereconstruction(重建),10．wasbasedlargelyonblackandwhitephotographsoftheoriginalAmberRoom,beganin1979atTsarskoyeSeloandwascompleted25yearslater.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）假定英語課上老師要求同桌之間交換修改作文，請(qǐng)你修改你同桌寫的以下作文。文中共有10處語言錯(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)(∧)，并在其下面寫出該加的詞。刪除：把多余的詞用斜線(\)劃掉。修改：在錯(cuò)的詞下劃一橫線，并在該詞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。Ihavetwopets,PollyandSally、Theyaregreen-and-blueparrot、Theirhomeisashadytreeinthegardenwheretheyarefreelytoflyfrombranchtobranch、Therehasawoodenboxfortheminatree、Thisistheirnest,wheretheysleepatnightthereandtakeshelterwheneveritrain、Everymorning,aftercleantheirnest,Ifeedthemwithsomeseedsandgivethemabowlwatertodrink、Theyareprettyandlivelybirds、Thisisreallyinterestingwatchingtheirmovements,becauseIneverfeeldullspendingmytimewiththem、第二節(jié)書面表達(dá)（滿分25分）29．（25分）假定你是李華，你校將舉辦“中國古典名著研討會(huì)”活動(dòng)。請(qǐng)用英文給喜歡中國文學(xué)的外教Smith寫一封電子郵件，邀請(qǐng)他參加該活動(dòng)。內(nèi)容包括：1.活動(dòng)時(shí)間和地點(diǎn)；2.活動(dòng)目的：走進(jìn)中國古典文學(xué)，感受中國傳統(tǒng)文化；3.活動(dòng)內(nèi)容：探討名家，交流閱讀經(jīng)驗(yàn)。注意：1.詞數(shù)100左右；2.可以適當(dāng)增加細(xì)節(jié)，以使行文連貫。_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

參考答案第一部分（共20小題，每小題1.5分，滿分30分）1、B2、C3、C4、D5、B6、D7、A8、D9、A10、A11、C12、B13、A14、D15、B16、D17、C18、C19、A20、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(gè)選項(xiàng)中，選出最佳選項(xiàng)。21、1、A2、A3、B4、C22、1、A2、D3、C4、D23、1、D2、B3、A24、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-dollartoolkitthatastronautHeidemarieStefanyshynPiperlostduringaspacewalk.Themajorproblemwiththespac