上海市奉贤区市级名校2025届高考英语全真模拟密押卷含解析

上海市奉贤区市级名校2025届高考英语全真模拟密押卷考生须知：1．全卷分选择题和非选择题两部分，全部在答题纸上作答。选择题必须用2B铅笔填涂；非选择题的答案必须用黑色字迹的钢笔或答字笔写在“答题纸”相应位置上。2．请用黑色字迹的钢笔或答字笔在“答题纸”上先填写姓名和准考证号。3．保持卡面清洁，不要折叠，不要弄破、弄皱，在草稿纸、试题卷上答题无效。第一部分（共20小题，每小题1.5分，满分30分）1．—You’vemadegreatprogressinyourEnglishstudy,haven’tyou?—Yes,butmuch.A．remainstodo B．isremainedtodoC．remainstobedone D．isremainedtobedone2．Allofasudden,thethiefwalkingbehindayoungandprettylady_______herpurse,______intothecrowd.A．seizing;rushed B．seized;rushed C．seizing;rushing D．seized;rushing3．—Haveyouheard____newsthatover10,000peoplelosttheirlivesintheearthquakeinJapan?—Notyet．What____bigsurprise!A．the;a B．the;/ C．/;/ D．/;a4．—Whatabouttheprotectionofthesenewmachines?—Let’skeepthesurface________dustbyputtingacoveroverthem.A．farfromB．apartfromC．freefromD．awayfrom5．WethesunshineinSanyanowifitwerenotforthedelayofourflight.A．wereenjoying B．wouldhaveenjoyedC．wouldbeenjoying D．willenjoy6．—Lookingbackon_____inyearsgonebyandthegoodtimethatIhadmakestodayseemrathersad.—Absolutely.Somuchhaschanged.A．howitwas B．whoitwas C．howwasit D．whowasit7．WatchingbasketballgamesonTVathomeisonething,goingtowatchthem________liveisquiteanother.A．perform B．performing C．toperform D．beingperformed8．Sheisquite________toofficework.Youhadbetterofferhersomesuggestionswhennecessary.A．familiar B．similarC．fresh D．sensitive9．Manyyoungpeoplejustcan’tlivewithouttheInternet,theydependonforwhateverinformationtheyneed.A．which B．when C．where D．what10．As______healthierlifestyleisbeingpromoted,thebicyclehasalsobecomeatoolthatkeepspeopleon______go.A．the;a B．a;aC．a;the D．a;/11．Sheissuchanirritatingwoman,Idon’tknowhowyoucan______her.A．putup B．standwith C．standupto D．putupwith12．Beinghappyisaskillthatcanbelearned,andonewayto________ourselvestobehappyistowritedownthelittlethingsthatcheerusupeachday.A．convey B．appeal C．train D．attempt13．Don’ttospring-cleanthewholehousejustbecausemymotheriscoming—there’snoneedtodothat.A．undertake B．attemptC．bother D．hesitate14．Howcome?Ican’tfindmykey.Ijustleftit________ithadbeen.A．where B．whichC．when D．how15．–Let’stakeacoffeebreak,shallwe?–IwishI________,butIhaveareallytightschedule.A．can B．shall C．could D．should16．—CanIhaveadayofftomorrow?Ineedtovisitmygrandmainthehospital.—__________.Icanmanagewithoutyou.A．ForgetitB．OfcourseC．ItdependsD．I’mafraidnot17．AlthoughtheRomacouldn’tbeforcedtopaytaxes,theycouldn’tvote______theyagreedto______agovernment.A．unless,submitto B．until,correspondtoC．when,resignto D．while,compromiseto18．Aheavysandstormisgoingtoenvelopourcity.Itisunwisetohaveyourcar.A．washB．washedC．washingD．towash19．—MrJohnson,IhavesomethingIwouldliketotroubleyouwith.—________.JusttellmewhatIcando.A．YouhavemywordB．Don'tgivemethatC．YoucansaythatagainD．Don'tstandonceremony20．—Ineedtoadvertiseforaroommatefornextterm.—______?Maryisinterested.A．Whatfor B．WhynotC．Sowhat D．Whybother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）AsimpleprojecttohelpafamilyinneedstoppedLukeMickelsoninhistracks.In2012,heandhisfamilywereinspiredtobuildanddonateabunkbed,onebedontopoftheother,afterlearningtherewerelocalchildrenwhosleptonthefloor.Shockedtodiscoverhowwidespreadthisneedwasinhiscommunity,MickelsonfoundedSleepinHeavenlyPeace,anonprofitthatbuildsanddeliversbedstochildreninneed.BornandraisedinIdaho,Mickelson,now41,hadathrivingcareer.Hecoachedhiskids’sportsteamsandfishedinthenearbyriver.Butwhenhemetchildrenwhoweresleepingonthefloor,hispeacefullifechangedcourse.Usingsafetyguidelinesandhisdaughter’sbunkbedasamodel,Mickelsonstartedbuyingwoodandsuppliestobuildbedswithhisownmoney.Herecruitedfriendsandfamilymemberstohelparoundtheholiday.Aswordspread,interestandinvolvementfromhisandothercommunitiesflooded—alongwithMickelson’sbunkbedoutput.“Thatfirstproject,webuilt11bunkbedsinmygarage,”hesaid.“Thenextyear,wedid15.Thenitdoubledeveryyear.In2017,webuilt612bunkbeds.”Withthemotto“Nokidsleepsonthefloorinourtown”,thenonprofitanditsmorethan65brancheshavebuiltanddeliveredmorethan1,500freebedstochildrenacrossAmerica.Butalongwiththerapidgrowth,Mickelsonwasfacedwithatoughchoice:advancinghiscareerorhisnonprofit.Hechosethelatterandwentfrommaking“greatmoneytozeromoney”.He’sneverlookedback.“IfoundthattheneedIhaveisn’tfinancial,”hesaid.“TheneedIhaveisseeingthejoyonkids’faces,knowingthatIcanmakeadifference.”1、WhydidMickelsonsetupSleepinHeavenlyPeace?A．Tohelpthepoorchildren. B．Tomakeabigfortune.C．Toinspirehiscommunity. D．Togetmoredonations.2、WhatdoweknowaboutLukeMickelson?A．Hehadhisownfishfarm.B．Hechangedhiscareerfromtimetotime.C．Heusedtosleeponthefloorwhenhewasakid.D．Heoriginallyhadarelaxingandpleasantlife.3、HowdidotherpeoplereacttoMickelson’sproject?A．Theyshowedlittleinterestinit.B．Theyweresupportiveandinvolvedinit.C．Theyweredoubtfulaboutthesafetyofthebunkbed.D．Theyvolunteeredtobuybedswiththeirownmoney.4、WhatisMickelson’sattitudetothenonprofit?A．Ambiguous B．Defensive. C．Cautious. D．Positive.22．（8分）Accordingtoofficialgovernmentfigures,therearemorethantwiceasmanykangaroosaspeopleinAustralia,andmanyAustraliansconsiderthempests(有害动物).Landholdingfarmerssaythatthecountry’sestimated50millionkangaroosdamagetheircropsandcompetewithlivestockforscarceresources.Australia’sinsuranceindustrysaysthatkangaroosareinvolvedinmorethan80percentofthe20,000-plusvehicle-animalcollisionsreportedeachyear.Inthecountry’sunderpopulatedregion,thecommonbeliefisthatkangaroonumbershaveswollento“plagueproportions.”Intheabsenceoftraditionalhunters,thethinkinggoes,killingkangaroosiscriticaltobalancingtheecologyandboostingtheruraleconomy.Agovernment-sanctioned(政府认可的)industry,basedonthecommercialharvestofkangaroomeatandhides,exported$29millioninproductsin2017andsupportsabout4,000jobs.Todaymeat,hides,andleatherfromkangarooshavebeenexportedto56countries.GlobalbrandssuchasNike,Puma,andAdidasbuystrong,supple“k-leather”tomakeathleticgear.Andkangaroomeatisfindingitswayintomoreandmoregrocerystores.Advocatespointoutthatlow-fat,high-proteinkangaroomeatcomesfromananimalmoreenvironmentallyfriendlythangreenhousegas-emittingsheepandcattle.JohnKelly,formerexecutivedirectoroftheKangarooIndustryAssociationofAustralia,says,“HarvestingourfoodandfibersfromanimalsadaptedtoAustralia’sfragilerangelandsisextremelywiseandsustainable.Manyecologistswilltellyouthatthereisnomorehumanewayofproducingredmeat.”Opponents(反对者)oftheindustrycallthekillinginhumane,unsustainable,andunnecessary.Populationestimatesarehighlydebatable,theysay,but“plagueproportions”arebiologicallyimplausible.Littlekangaroosgrowslowly,andmanydie,sokangaroopopulationscanexpandbyonly10to15percentayear,andthenonlyunderthebestofcircumstances.DwayneBannon-Harrison,amemberoftheYuinpeopleofNewSouthWales,saystheideathatkangaroosaredestroyingthecountryislaughable.“They’vebeenwalkingthislandalotlongerthanpeoplehave,”hesays.“Howcouldsomethingthat’sbeenhereforthousandsofyearsbe‘destroying’thecountry?Idon’tunderstandthelogicinthat.”CanAustralians’conflictingattitudestowardkangaroosbereconciled(和解)?GeorgeWilsonsaysthatifkangarooswereprivatelyowned,thengraziers(放牧人)—workingindependentlyorthroughwildlifeconservancies—wouldprotecttheanimals,treatingthemaspossessions.Theycouldfeedthem,leasethem,breedthemandchargehunterafeeforaccess.“Ifyouwanttoconservesomething,”Wilsonsays,“youhavetogiveitavalue.Animalsthatareconsideredpestsdon’thavevalue.”Privatizationcouldalsohelpreducegrazingpressures.Ifkangaroosweremorevaluablethancattleorsheep,farmerswouldkeeplesslive-stock,whichcouldbegoodfortheenvironment.Underthisscheme,landholderswouldworkwiththekangarooindustryonbranding,marketingandqualitycontrol.Thegovernment’srolewouldbeoversightandregulation.1、Whatcanbelearntfromthefirstthreeparagraphs?A．Kangaroomeatishealthierthanotherredmeat.B．Globalbrandsmakesmallprofitsonkangaroos.C．Kangaroosaremorefriendlytotheenvironment.D．Overpopulatedkangarooshavebecomeafinancialburden.2、Whatdoestheunderlinedword“implausible”inParagraph4probablymean?A．Unreasonable. B．Immeasurable.C．Unquestionable. D．Unchangeable.3、Whichofthefollowingmightbethebenefitofprivatization?A．Thepopularityofkangaroohunting.B．Thereductioninthenumberofkangaroos.C．Theestablishmentofmoreconservationareas.D．Thebettermanagementofthekangarooindustry.4、Thepassageiswrittento________.A．argueagainstthekillingofkangaroosB．stresstheimportanceofprotectingkangaroosC．presentdifferentopinionsonthekangarooindustryD．provideasolutiontotheproblemcausedbykangaroos23．（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（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．Howtotakeaplane24．（8分）“I’vealwayslovedfood,”saysCassieDawsoninthekitchenofherflatinLondon.“ButI’vebecomeboredwitheatingout.I’vehadtoomanydisappointingmealsandpaidtoomuchmoneyforthem!Atonepoint,fedupwithmycomplaint,afriendsuggestedIopenmyownrestaurant.Impossible,Ithought.ButthenIheardaboutsupperclubs...”Supperclubsareamixtureofarestaurantandadinnerparty—yougotoastranger’shouseandhe/shecooksdinnerforyou.Likearestaurant,youpayforyourfood,butlikeadinnerparty,youeatatthesametableasotherpeople.Theyareadvertisedthroughsocial-networkingsiteswithamenuandlittleinformationaboutwherethesupperclubisuntiljustbeforethemeal.“It’slikerunningasecretrestaurantforonenight,”saysCassie.“Thenextmorning,Isetthetablesandchairsaside.IputtheTVbackandit’smylivingroomagain.”Cassieopensher“restaurant”forpeopleaboutonceamonth,andshereallyenjoystheeveningsshe’shadsofar.Sheusesfresh,localingredientsandatypicalmealcostsaboutthesameasatakeaway—muchlessthanarestaurantmeal.Sohowdoesshemakemoneyoutofit?“Idon’t,”saysCassie.“Infact,atfirstIwasworriedaboutlosingmoneyonmyclub.I’mgoodatcookingbutmymathsisterrible!ButIwassurprisedbyhowcheaplyIcouldmakeagoodmeal.Thisisn’taboutmoney.It’saboutadifferenteatingexperience.”Andwhataboutinvitingcompletestrangersintoherhouse?WasCassieevernervousaboutthat?“Notatall,”shesays.“Almosteveryoneatthesupperclubisjustinterestedinhavingagoodmealwithotherinterestingpeople.”1、WhydidCassiedecidetoopenherownrestaurantfinally?A．Toearnaliving.B．Tosatisfyherfriend’sneeds.C．Tomakefriendswithstrangers.D．Tocookcheapandgoodmealsforothers.2、Whatdoestheunderlinedword“They”inParagraph2referto?A．Dinnerparties.B．Supperclubs.C．Freshingredients.D．Invitationstodinner.3、WecanknowthatCassie’srestaurant________.A．servesmealsforfreeB．onlyservestakeawaysC．isonlyopentoherfriendsD．isonlyopenintheevening4、HowdoesCassiefeelaboutherrestaurantnow?A．Worried.B．Content.C．Annoyed.D．Sensitive25．（10分）Itcouldhavebeenanyofus,butithappenedtobeme.Ireceivedabrief18-monthsofundividedattentionandloveastheonlychild,beforethreemoreappeared.Thesecondwasasevereblow.Nodoubt,learningtheneedtosharewasimportant,butIhadtastedthelifeofanonlychild.Thencameyearsofrequeststolookafterthesiblings(兄弟姐妹),beingurgedthat,youshouldbesettingabetterexample,“AgainandagaintheothersgotawaywithdoingwrongbutIdidn’t.Weeachplayedourroles;thesecondonewholaterskippedschooltomeetboys;theeversoattractivethird,theboywhocoulddonowrong;andfinallythesurpriseappearanceofthefourth,seemedcertaintobespoiledevennow.Sothatleftme:thereasonable,quietonewhogotthegrades,didthehouseworkandbecameachameleon(变色龙)—skilledatreadingasituationandbeingwhatwasneeded.Theneventuallycamethechancetobethefirsttoleaveandexperiencelifeontheoutside,notdefined(定义)astheeldest.ThemomentIhadwaitedfor.Butnow,manyyearslater,beingtheeldestmattersagain.It’sdowntome;itseems,totaketheleadincaringforourparents.AllthetimeIwasmadetolearnaboutsharing;however,whenitcomestoresponsibility,itnolongerseemstoapply.Theothersaretoobusy,toofaraway,ortoounconcerned.SodutifullyItravelmanytimesacrossthecountryforhourstoprovidecareandsupport.Requeststomysiblingstohelpoutmorefallondeafears.Tome,thedutifulfirstborn,itfeelsliketherightandonlythingtodo;tobethereforourparentsastheywereforus.Sadly,thatfeelingisn’tsharedbythesecond,thirdorfourth.1、Howdoestheauthorcommentonthefourchildreninthesecondparagraph?A．AngrilyandBitterly.B．Angrilyandproudly.C．Bitterlyandhumorously.D．Humorouslyandproudly.2、Howdidtheauthordevelophissocialskills?A．Throughhardwork.B．Withtheparents’help.C．Attheparents’request.D．Inpracticeforeffectiveness.3、Whatdoestheunderlinedword“it”inthelastparagraphrefersto?A．Tocarefortheold.B．Tohelptheyoung.C．Toliveoutsidealone.D．Totravelnationwide.4、Whatcanwelearnfromthetext?A．Thewriterhatestobetheeldest.B．Thewriterfeelsproudofhisrole.C．Thewriterissatisfiedwithhisattempt.D．Thewriterisregretfulaboutthesiblings.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）Honestyisalwaysthebestpolicy,especiallywhenitcomestomentalhealthproblems.InaTV1,onegirlgetsveryrealaboutdealingwithanxietyandpanic.“Iwasthebeststudentinmyhighschool.Iputsomuch2onmyself,”shesaid.“Inever3aclass.ButIgotsickduring10thgradeandIstartedto4.That’swhenthepanicattacksbegan.”Shegoesontodescribewhatapanicattack5like,“Onedaytheteacherhandedmemygrade6,andIcouldn’tbreathe.Myheartwasbeatingvery7.Ifeltdisconnected.IsawpeopletryingtotalktomebutIcouldn’thearthem.Afterwards,Iwassentto8,”sheshared.Itwasthen9theattacksstartedhappening10daily,andtheyhaven’tstopped.“LastyearIstartedcollege.AndIcan’tbethebeststudentherenomatterhowhardItry,”shesaid.“Everyoneisso11.MypanicattacksgotsobadthatIhadto12myfirstsemester.”However,nowsheisfacingheranxiety,andthingsaregettingbetter.“Iusedtotrytohide13.Ithoughtthat14nobodyknow,itdidn’texist,”shesaid.“ButthemoreItalkaboutmy15,themoreIrealizethatotherpeopleexperience16things.SoI’mtryingtoexpressitmore.Ihadagreatteacher17toldme,‘Insteadoflettinganxietykeepyoufromdoingyourart,letitbethethingthat18yourart.’”Recently,womenallovertheworldtooktoTwitterto19whatanxietyislike.Weare20alone.1、A．project B．program C．platform D．station2、A．weight B．height C．pressure D．measure3、A．joined B．succeeded C．failed D．attended4、A．fallbehind B．falldown C．leavebehind D．leavealone5、A．looks B．sounds C．tastes D．feels6、A．report B．survey C．research D．notice7、A．mildly B．wildly C．slowly D．severely8、A．school B．work C．hospital D．home9、A．when B．since C．before D．that10、A．still B．always C．merely D．almost11、A．ambitious B．anxious C．talented D．experienced12、A．arrange B．perform C．operate D．cancel13、A．it B．them C．me D．us14、A．unless B．if C．while D．as15、A．confidence B．dream C．issue D．desire16、A．similar B．familiar C．various D．serious17、A．who B．whom C．whose D．which18、A．abandons B．quits C．motivates D．protests19、A．advertise B．advise C．share D．compare20、A．always B．sometimes C．seldom D．never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）Visitingthecitywhenyouaresixmonthspregnantandhaveatwo-year-oldgirlcanbereally1．(challenge).Onespringafternoon,wewenttooneofthegrocerystoresnearbytobuysomefoodfordinner.Therewasnosignofrain,andthestorewasjustaroundthecomer,sowewentthere2．anumbrella.However,wewereabouttoleavethestore3．theraincameinfullforce.Itseemedthatthestreetswouldbeflooded4．waterwithinminutes.InoticedayoungChinesecouplestaringat5．(we)whenwecametoacrossroadsandwerewaitingforthelighttochange.Ifiguredtheywereprobablywondering6．apregnantforeignerwasdraggingherlittlekidoutthroughtherain.Butaswecrossedthestreet,7．womanofferedmeherumbrella.ItoldherIcouldn’ttakeitwhenitwasclearlystartingtostorm.Sheinsisted,8．(hand)ittomeandhurriedoffwithherhusband.Thoughcaughtintherain9．(expect),westilltreasuredthememoryandwillalwaysrecallthe10．(friend)andkindnessoftheChinesecouple.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。每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：在错的词下画一横线，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仅限一词；2.只允许修改10处，多者（从第11处起）不计分。Sorrytohearthatyoufailedinthemonthlyexams.Asisknowntousthatlifeisnotasmoothlyjourney,whichisfullofupsanddowns,soneverlosetheheart.Buttherearesometipsforyoutofollow.Firstly,learnfromyourexperiences.It’sstronglysuggestedthatyoufiguredoutandreflectonyourmistakes.Toavoidmakethesameerrors,youmayaswelltumyourteachersforhelp.Secondly,workoutadetailedplan.Makesureitiseasyandpracticaltocarryoutandyoushouldrewardyouwhengoalsachieving.Thirdly,moderaterelaxationisamust,becauseallworkandnoplaymakeJackadullboy.Lastbutnotleast,sticktoyourideal,whichservesasacompass,guidingandmotivatingyouacrosstoughtimes.Wishyougoodluck.第二节书面表达（满分25分）29．（25分）假定你是李华，你的笔友Tom来信询问你的暑假生活，请你给他写一封回信。内容包括：1．讲述你做志愿者的经历；2．介绍你的收获和心得；3．希望了解他的暑期生活。注意：1．词数100左右；2．可以适当增加细节，以使行文连贯________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

参考答案第一部分（共20小题，每小题1.5分，满分30分）1、C2、D3、A4、C5、C6、A7、D8、C9、A10、C11、D12、C13、C14、A15、C16、B17、A18、B19、D20、D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、A2、D3、B4、D22、1、C2、A3、D4、D23、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.Thejunkvariesfromtin