2021-2022學年沙頭角高考英語二模試卷含解析

2021-2022高考英語模擬試卷

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.Aftercollege,hewasemployedinamiddleschoolandthereeversince.

A.wouldworkedB.hadworked

C.workedD.hasworked

2.Theforeignersherearegreatlyimpressedbythefactthatpeoplefromallwalksoflifeareworkinghardfor

newTianjin.

A./;aB./;the

C.a;aD.the;the

3.studentsshouldbegivenmorefreetimeissuggestedbymanyexpertsandwelcomedbykidsinschool.

A.WhatB.WhyC.WhetherD.That

4.—ThisisthefirsttimeImypicturewithmyownhands.

—Itistimethatyouapictureforme.

A.havetaken;tookB.took;shouldtake

C.took;willtakeD.willtake;havetaken

5.Smokinginthekitcheninmyhouse.

A.doesn9tallowB.didn9tallow

C.isn9tallowedD.won'tallow

6.ThedifferenceinthicknessandweightfromtheearlierversionmakestheiPad2morecomfortable?

A.heldB.holdingC.beheldD.tohold

7."Couldweputoffthemeeting?”sheasked.

“Heansweredpolitely."Thisistheonlydayeveryoneisavailable.”

A.NotlikelyB.Notexactly

C.NotnearlyD.Notreally

8.Oh!Icanfeelsomethingupmyleg!Itmustbeaninsect.

A.toclimbB.climbing

C.climbD.climbed

9.OnehundredandfifteenChinesecompanieshitthenewlyreleasedFortune500listfor2017,anincreasefor

the14thstraightyear;domesticwebsitereportedonThursday.

A.torealizeB.realized

C.realizingD.havingrealized

10.Itwasadifficultjobforhim.Hehadtriedeverythingbutitmadelittle.

A.useB.good

C.differenceD.result

11.Manynetizensareimpressedwiththeexcusegivenbyateacherforquittingherjobsheowestheworlda

visit.

A.becauseB.thatC.whereD.why

12.youconsiderthattheairlinehandled80millionpassengerslastyear,theaccidentfiguresarereallyvery

small.

A.UnlessB.When

C.BeforeD.Though

13.Neverturndownajobbecauseyouthinkit'stoosmall.Youdon'tknowitcanlead.

A.howB.where

C.whetherD.what

14.AnewbusservicetoTianjinAirportstartedtooperatetwomonthsago.

A.commonB.usual

C.regularD.ordinary

15.Howlongdoyousupposeitishearrivedandbegantoworkthere?

A.whenB.before

C.afterD.since

16.—ThankGodIpassedtheinterviewyesterday.Iwassweatingheavily.

—Metoo.IwhenIwassittingoutsidewaiting.

A.lookeddownmynoseB.letmyhairdown

C.hadbutterfliesinmystomachD.chancedmyarm

17.Wecouldhavedonesomethingmeaningfulinthetimeittowatchthatboringmovie.

A.hastakenB.tookC.hadtakenD.takes

18.Wehavealreadydiscussedthisplan,sonextweshouldsparenoefforttocarryitout.

A.atlengthB.atrandomC.ateaseD.atbest

19.FortheChinesedreamatanearlierdate,wemustacceleratethepaceofreformandopeningup.

A.beingrealizedB.torealize

C.realizingD.toberealized

20.TheLifelongLearningProgrammetoenablepeopletotakepartinlearningexperienceshastakenoff

acrossEurope.

A.havingbeendesignedB.beingdesigned

C.designedD.designing

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）AlmaDeutschercouldreadmusicbeforeshecouldreadwords.Shecomposedherfirstpianosonata

atsix,herfirstshortoperaatseven,andherfirstfull-lengthoperaat10.

AlmaAlma>agiftedmusicianaswellasacomposer9thechildprodigy>or66LittleMozart**,whosemusicisinthe

classical-romantictraditionywasonstagethroughout,switchingbetweenthepianoandtheviolin.

Herparents?motherJanie,andfatherGuy,arequiteformal.Theythinkdeeplybeforetheyspeak,andappearto

bequiet.TheymaintainAlmaisanadultwhenitcomestomusicandanormalgirlinotherways.

Shehasalwaysbeenhome-schooledandisreadingPhilipPullman'sHisDarkMaterialswhenwemeet.Janie,who

hasgivenupheruniversityjob,isalsoahugesupport,home-schoolingbothgirls.AndtheybelieveAlmawouldn*thave

developedinmainstreameducationanyway.Becauseherneedsaredifferentandit'squitedifficultforanyschool.

Butperhapswhatmostsetsherapartistheintensity（強度）ofherimagination.SpendtimewithAlmaandyouare

struckbyhowoftenshetalksaboutTransylvanian,whichisunrelatedtotheregioninRomania."Imusthaveheardthe

namesomewhere,becauseIdidn'tknowitwasarealplaceuntilmuchlater,“shesays.

Transylvanianisnmyownlandwithitsownlanguageandtherearebeautifulcomposersthere,namedAntonin

YellowsinkandAshyandShellandFlarew.Transylvanianisoutside,inside；everywhereandnowhere.

Shehaswrittenbiographiesaboutthecomposers,createdamagazine,ParisFlash,fortheinhabitants,andeven

composedaTransylvaniannationalanthem.Herfatherbelieveshermusicalabilityisasignofthisimagination.MItall

poursoutlikeavolcano/*hesays.

1、WhatcanwelearnaboutAlmafromthefirsttwoparagraphs?

A.Sheistooyoungtobeamusician.

B.Sheisawonderchildonmusic.

C.Sheisahard-workingchildonmusic.

D.Hermusicworksarewell-knownaroundtheworld.

2、WhydidAlmareceiveeducationathome?

A,Becauseshedidn'tlikeschool.

B.Becauseofherspecialneeds.

C,Becausehermotherlostherjob.

D.Becauseshewantedtostaywithhersister.

3、WhatdoweknowaboutTransylvanian?

A.TransylvanianisaplaceinAlma'scity.

B.TransylvanianisaplaceinthebookAlmaread.

C.TransylvanianisaplacethatAlmaimagined.

D.Transylvanianisagroupformusiciansandcomposers.

4、Accordingtoherfather,whatisthekeytoAlma'ssuccess?

A.Herrichimagination.B.Herparents*influence.

C.Herteachers*instruction.D.Herhardworkonmusic.

22.（8分）Statistically,airtravelisbyfarthesafestwaytotravelandyoucanmakeflyingevensafer,justby

followingthesesimplerules.Asyourchancesofbeinginvolvedinanairaccidentarepracticallynil（零），manyofthese

rulesconcernwhatyoushouldandshouldn'tdotomakeyourjourneysaferwhenyouareintheair.

?Flyonnon-stoproutes

Mostaccidentsoccurduringthetakeoff,climb,descentandlandingperiodofaflight,soflyingnon-stopreducesyour

exposuretothesecomplicatedprocedures.

?Chooselargeraircraft

Althoughsmallaircraftshaveverygoodsafetyrecords,thosewithmorethan30passengerseatsaredesignedtocomply

（遵守）withmuchstricterregulationsandaretestedmoreregularlytomakesuretheystillcomply.Also,inthe

unlikelyeventofaseriousaccident,largeraircraftsprovideabetteropportunityforpassengersurvival.

?Payattentiontothepre-flightsafetybriefing（簡報）

Theinformationmayseemtoberepeated,butit'sworthlisteningtotheflightattendants.Andevenifyouhaveflown

before,itdoesn'tmeanyouknoweverythingabouttheaircraftyou*reon,suchasthelocationoftheclosestemergency

exit.

?Storethingssafely

Neverputveryheavyarticlesintheoverheadstoragebins.Theymayfalloutwhensomeoneopensthebinandcause

injury.Also,thebinmaynotbeabletoholdheavierobjectsduringtheviolentmovementsofaircausedbythewind.

?Keepyourseatbeltfastenedwhileyouareseated

Cabincrewalwaystellyouthis,butit'simportant.Youcouldbeseriouslyinjurediftheplanehitstheviolentmovement

ofairunexpectedly.Alwaysfastenyourseatbeltifyouaretoldto.Theteneralruleofflyingisthis:Ifyouaretoldtodo

something,doitfirstandaskquestionslater.

?Lettheflightattendantpouryourhotdrinks

Flightattendantsaretrainedtohandlehotdrinkslikecoffeeorteainacrowdedaisleonamovingaircraft,soallow

themtopourthedrinkandhandittoyou.Neverasktotakeacoffeepotfromoneofthem.

1、Whatisrthegeneralreasonfortheseairsafetyrules?

A.Whattodointheeventofacrash.

B.Howtoavoidsuddenchange.

C.Howtoimprovesafetywhileyouareflying.

D.Howtoavoidinjury.

2^Theunderlinedphrase"Thegeneralrule"inthefifthrefersto.

A.anythingtheflightstafftellyoutodo

B.generalsafetyadvice

C.walkingaroundtheplane

D.pouringhotdrinks

3、WhichofthefollowingisNOTtrue?

A.largerplaneshavemoresafetychecksandaresaferinanaccident.

B.Take-offsaresaferonnon-stopflightsthanlanding.

C.Everyaircraftisdifferent,sothesafetyproceduresmaybedifferent.

D.Seatbeltsshouldbeworntoprotectagainstsuddenchange.

4、Thebesttitleshouldbe.

A.ThesafestwaytotravelB.Airsafetytips

C.Non-stopRoutesD.Howtotakeaplane

23.（8分）UnbelievableStoriesofAnimalsActingJustLikeHumans

?Horsesarepickyeaters

Horseshaveanevenbettersenseofsmellthanhumansdo.Whenhorsesraisetheirnosesandopentheirnostrils（鼻

孑L）,theirnervoussystemallowsthemtosensesmellswecan'tsense.Thismightexplainwhytheyrefusedirtywaterand

carefullymovearoundmeadows,eatingonlythetastiestgrasses,expertssay.

?Whalesaysthanks

In2011,awhaleexpertspottedahumpbackwhaletrappedinafishingnetandspentanhourfreeingit.Afterward,

inanhour-longdisplayofthanks,thewhaleswamneartheirboatandleapedintotheairabout40times.

?Pandasliketobenaughty

Isthereanythingmorelovelythanababypanda,exceptmaybeahumanbaby?Infact,babypandassometimes

behavelikehumanbabies.Theysleepinthesamepositionsandvaluetheirthumbs.Pandasareshybynatureforitsshy

behaviorssuchascoveringitsfacewithapawofduckingitsheadwhenconfrontedbyastranger.

?Acathonorsitsowner

Papertowels,andaplasticcuparejustafewofthegiftsthatToldo,adevotedthree-year-oldgray-and-whitecat,

hasplacedonhisformerownerlozzelliRenzo'sgraveeverydaysincethemandiedinSeptember2011.Renzoadopted

Toldofromashelterwhenthecatwasthreemonthsold,andthetwoformedaninseparablebond.AfterRenzopassed

away,Toldofollowedthecoffintothecemetery,andnow“standsguardnatthegraveforhoursatatime.

1、Whatcanhorsesdotopickdeliciousgrasses?

A.Feelthem.B.Tastethem.

C.Smellthem.D.Observethem.

2、Whatdothewhaleandthecathaveincommonaccordingtothepassage?

A.Theyareeleven

B?Theyhaveagratefulheart.

C.Theyareactiveandlovely.

D.Theyhaveagoodsenseofsmell.

3、Whichofthefollowingactslikeahumanbabyaccordingtothepassage?

A.Thewhale.B.Thecat.

C.Thehorse.D.Thepanda.

24.（8分）Thesemuseumsaresolelydevotedtoaparticularpieceoffoodculture.

SPAMMuseum

Withabrandnewlocation,theSPAMMuseumcelebratesafoodthatpeopleeitherloveordespise.Whilevisitors

mightnotactuallybeabletofindoutwhat'sinsideacanofSPAM,themuseumhasalotofmemorabilia（紀念品）on

display,manyofthemrelatedtoitsroleintheworldWarII.

Admission:free

Hours:

November-March

Monday-Closed

Tuesday-Saturday:10am-5pm

Sunday:Noon-5pm

April-October:

Monday-Saturday:10am-6pm

Sunday:Noon-5pm

CLOSED:NewYear'sDay,Easter,Thanksgiving.ChristinasEveandChristmasDay

ChocolateMuseum,Cologne

Themuseumoffersguidedtours,acafeandastorewhereover100,000chocolateproductsareforsale.AGerman

travelexpertsays,n,'TheexhibitiontextsareinEnglishandGerman:forkids,thereareplentyofinteractiveactivities,

butthehighlightofthemuseumisa10-foothighchocolatefountain（噴泉）

Admission:

Adults:€9.00

Groupsof15personsormore:€8.50

Familyticket:EC25.00

Hours:

TuesdaytoFriday:10am-6pm

Saturday/Sunday/bankholidays:llam-7pm

InDecember2018themuseumwillbeopeneveryMonday

Frietmuseum,Bruges

TheFrietmuseumexplainsthehistoryofthepotatoandfries,startingonthegroundfloorwithanexhibitionabout

Peru,wherepotatoesoriginatedmorethan10,000yearsago.Thenonthefirstfloor,visitorscanlearnaboutthehistory

offries,andhowtheycametoBelgiumandbecamethemostbelovednationalfoodTherearealsomedieval（中世紀的）

potatocellars（地窖）wherevisitorsgettohaveataste

Admission:

Adults:€7.00

Groups（from15people,reservationrequired）:€6.00

Students,65+:€6.00

Childrenagedfrom6to11:€5.00

Hours:

Dailyfrom10amto5pm（lastticketsat4:15pm）

Closingdates

Closedon24th,25thand31stDecember,1stJanuary

Wearealsoclosedfrom9thtill13thJanuary

1、IfyouvisittheSPAMMuseumduringthewinterholiday,youhavetovisititat.

A.11amonMonday.

B.11amonSunday.

C.11amonThursday.

D.6pmonSaturday.

2、WhatisprobablythemostpopularthingforchildrenintheChocolateMuseuminCologne?

A.Achocolatestore.

B.Interactiveactivities.

C.Achocolatecafe.

D.Achocolatefountain.

3、WhatisnotexhibitedintheFrietmuseuminBruges?

A.ThehistoryofpotatoesinPeru.

B.ThehistoryofpotatoesinBelgium.

C.ThehistoryoffriesinBelgium.

D.Thecity'smedievalpotatocellar.

4、WhichofthefollowingisTRUEaboutthemuseums?

A.AllexhibitionsintheSPAMMuseumarerelatedtoitsroleinWorldWarIL

B.TheChocolateMuseuminCologneisclosedonMondayatpresent.

C.PotatoesandfriesoriginatedinPeru.

D.Alltheticketpriceforeachstudentis€6.

25.（10分）Hi,mynameisEthanKing.Tm14yearsoldandIlovethegameofsoccer.Inthesummerof2009,1

wenttonorthernMozambique（Africa）withmydadtohelprepairwaterwells（井）inlocalvillages.Itookmysoccerball

along.IthoughtImightbeabletoplaywiththelocalkids.WhenwearrivedatthevillageofNtette,Ithrewoutmyball

andsoon,50kidswereplaying.Manyofthesekidshadneverhadthechancetoenjoyplayingsoccerwitharealball.

Forme,it'snobigdealtoplaysoccerwitharealball.Idoitallthetime.

I'vediscoveredthatmanykidsinpoorcountrieswanttoplaysoccer,buttheycan'tbecausetheydon'thaveaball.

Ihaveseveralsoccerballsinmyhouse.Ithoughtthatthesekidswouldenjoythissoccerballfarmorethanme.So,I

gavemyballtothem.

Aswepreparedtoleave,oneoftheboysbroughtthesoccerballbacktome.Isaidtohim,"No,thisisyours.Igave

ittoyou.”Helaughedandcheered!Ilovedseeingthattheyhadarealballtoplaywith.

Everykidwholovesthegameofsoccerdeserves（值得）toplay.Everykidwholovesthegameofsoccerdeserveshis

orherownball.Andthat'swhyIstartedCharityBallin2010.Itprovidesnewsoccerballsforkidsinpoorcommunities

aroundtheworld.

1、HowoldisEthen?............................

A.fourteenB.fifty

C.sixtyD.forty

2、WhenEthanleftNtette,.

A.hemadeasoccerballforthevillageboys

B.hegavehissoccerballtothevillageboys

C.oneofthevillageboysgavehimahandmadesoccerball

D.hegavethevillageboyssomemoneytobysoccerbails

3、WhatdoweknowaboutCharityBall?

A.Itcollectsoldsoccerballs

B.Ittrainskidswholovesoccer

C.ItstartedwhenEthanwas14yearsold

D.Itgivesnewsoccerballstokidsinpoorcommunities

4、WecanlearnfromthepassagethatEthanis.

A.kindB.talented

C.braveD.careful

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）IhadstoppedtogetgasataplacewhereIalmostnevergo.Ihad]aboutcleaningmy

windshield（擋風玻璃）.Butthenwhenthegas2wasalmostfinished,Idecidedforsomereasonto3and

cleanit.That'swhatIwasdoingwhenawomanapproachedmeandaskedfor4.

Thereweretwowomen,onemiddleaged,theothertwenty-something,5ayoungchildinthebackseat.On

adaywhenthetemperaturewaswellpast100,theywere6inanoldcarwithnoairconditioning,drivingfroma

townaboutanhouraway.

HCanyoutellushowtogettoMopac,sir?”Shehadafolded-upprintoutofdirectionsfromGooglemaps.MSure.

WhereonMopacareyou7?”Iasked.Sheunfoldedtheprintoutandshowedmethe8.Iknewitwell,

andstartedtogetthe9thatthismomentwasmeanttohappen.HIknow10wherethatis.MItoldher.nI

usedtohavea（n）11inthatbuildingtoworkin."

112givingdirectionstotheolderlady,andthenagaintoher13,whowasthedriver.Ittooka

while,becauseI14eachinstructiontomakesuretheyunderstood.Inasinceremomentof15,theolder

ladythankedme.

Thewhole16helpedmemuchmorethanithelpedher.Ihadbeenhavingavery17day.Infact,

theonlyreasonIhadgonetothatparticulargasstationwasthatIwantedtotakealittledriveand18myhead.

AsIreplacedthegascap,havingsentthemontheirway,Isuddenly19thatIfeltbetter.Myheadwasclear.

AndIam20fortherealgoodnessitbroughtintomylife.

1、A.caredB.hesitatedC.worriedD.complained

2、A.makingB.leakingC.burningD.pumping

3、A.goaheadB.giveupC.setoffD.hurryup

4、A.gasB.coinsC.directionsD.food

5、A.uponB.withC.exceptD.beyond

6、A.starvingB.shelteringC.travelingD.hiding

7、A.lostB.arrangedC.locatedD.headed

8、A.distanceB.lineC.signD.address

9、A.feelingB.evidenceC.rewardD.pleasure

10、A.generallyB.exactlyC.whollyD.personally

11、A.destinationB.fieldC.officeD.apartment

12、A.thoughtofB.putoffC.turnedtoD.endedup

13、A.companionB.passengerC.helperD.colleague

14>A.explainedB.repeatedC.demonstratedD.recalled

15、A.silenceB.coldnessC.appreciationD.embarrassment

16>A.situationB.accidentC.conversationD.incident

17、A.meaningfulB.fortunateC.importantD.difflcult

18、A.clear.B.emptyC.coverD.turn

19、A.understoodB.realizedC.acknowledgedD.assume

20、A.anxious.B.fitC.readyD.grateful

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~或括號內單詞的正確形式。

27.(15分)Onceuponatime,thereweretwolittleboys,JackandTom,who(raise)inanorphanage.Jackhad

alwayswishedhecouldflylikeabird.AndTom,unabletowalkproperly,was2.(eagerness)towalkandrunlikeother

children.

OnedayJackcameuponapark3,hesawTomplayinginthesandbox.Heranoverto41_(he)andaskedifheever

hadwantedtoflylikeabird."NoJsaidTom,"5.Ihavewonderedwhatitwouldbeliketowalkandrunlikeothers.”

Thetwolittleboysplayedfor6,(hour).ThenamancamewithawheelchairtopickTomup.Jackranovertothe

manandwhisperedsomethinghisear.AndthenheranovertoTomandsaid,“IwishIwereable8.(make)youwalk

andrun.But1can'tHowever,thereissomethingthatIcandoforyou?”

JackturnedaroundandtoldTomtoslideupontohisback.Hethenbegantorunacrossthegrass,9.(carry)Tom

onhisback.Soonthewindjustwhistledacrossthetwolittleboy'sfaces.

Flapping(擺動)hisarmsupanddowninthewind,Tomyelled10>(cheerful),“PMFLYINGI'MFLYING!”

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)假定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（八），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：在錯的詞下劃一橫線，并在該詞下面寫出修改后的詞。

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。

Asisknown,somestudentshavebreakfastregularly>Therefore,othersdon't,orevenskipit、Amongofthestudents

whohavebreakfasteveryday,onlyafewhaveabalanceddietwhichincludesbreads,milkandeggs、Thereisseveral

reasons>Firstofall,manystudentsdon'tknowanimportanceofbreakfastsBesides,manyparentshavelimited

knowledgeaboutthatabalanceddietis>Finally,teachersgivestudentstoomuchtasks,sotheyhavenotimehave

breakfastsInaword,everystudentshouldhadbreakfastregularlyThemorebalanceddietonehas,thehealthyhe

willbe!

第二節(jié)書面表達（滿分25分）

29.（25分）假設你是李華，目前正在英國做交換生，你的英國朋友Debbie送了你一張CeilidhDance的舞會票?，F(xiàn)

在，請給她寫一封郵件致謝，并詢問有關情況（箭頭所指內容）。

introductiontotobring?

tsance.clothesorshoestowear?

Summerhall>MAINHALL

TheCei(idhClubatSum

IEdinburghCeilidhCL-------------------------------howtogetthere?

Thu31Mar201620:00

￡6.00FULLPRICE

AOMN131toM.1

RUMV

注意：1.詞數(shù)100左右;

2.可適當增加細節(jié)，以使行文連貫；

3.開頭和結尾已給出，不計入總詞數(shù)。

DearDebbie,

IamdelightedtoreceiveyourticketfortheCeilidhDance.

Yours,

LiHua

參考答案

第一部分（共20小題，每小題L5分，滿分30分）

1、D

2、A

3、D

4、A

5、C

6、D

7、D

8、B

9、C

10、C

11、B

12、B

13、B

14、C

15、D

16、C

17、B

18、A

19、D

20、C

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、B

2、B

3、C

4、A

22、Spaceiswhereourfutureis—tripstotheMoon,Marsandbeyond.Mostpeoplewouldthinkthatasidefrom

comets（彗星）andstars,thereislittleelseoutthere.But,sinceourspacejourneystartedwehaveleftsomuchtrash（垃

圾）therethatscientistsarenowconcernedthatifwedon*tcleanitup,wemayallbeinmortal（致命的）danger.

Thefirstpieceofspacejunkwascreatedin1964,whentheAmericansatelliteVanguardIstoppedoperatingandlostits

connectionwiththegroundcenter.However,sinceitkeptorbitingaroundtheEarthwithoutanyconsequences,

scientistsbecameincreasinglycomfortableabandoning（拋棄）thingsthatnolongerservedanyusefulpurposeinspace.

Itisestimated（估計）thattherearenowover500,000piecesofman-madetrashorbitingtheEarthatspeedsofupto

17,500milesperhour.Thejunkvariesfromtinypiecesofpaintchippedoffrocketstocameras,hugefueltanks,and

evenodditemslikethemillion-dollartoolkitthatastronautHeidemarieStefanyshynPiperlostduringaspacewalk.

Themajorproblemwiththespacetrashisthatitmayhitworkingsatellitesanddamagetravelingspacecraft（飛船）.

Moreover,piecesofjunkmaycollide（碰撞）witheachotherandbreakintopieceswhichfallbacktotheEarth.To

avoidthis,scientistshaveinventedseveralwaysforclearingthesky.Groundstationshavebeenbuilttomonitorlarger

piecesofspacetrasht