2025届江西省校级联考英语高三上期末学业水平测试试题含解析

2025届江西省校级联考英语高三上期末学业水平测试试题注意事项1．考试结束后，请将本试卷和答题卡一并交回．2．答题前，请务必将自己的姓名、准考证号用0．5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置．3．请认真核对监考员在答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符．4．作答选择题，必须用2B铅笔将答题卡上对应选项的方框涂满、涂黑；如需改动，请用橡皮擦干净后，再选涂其他答案．作答非选择题，必须用05毫米黑色墨水的签字笔在答题卡上的指定位置作答，在其他位置作答一律无效．5．如需作图，须用2B铅笔绘、写清楚，线条、符号等须加黑、加粗．第一部分（共20小题，每小题1.5分，满分30分）1．Johnsonhasn’tfeltanyeffectthenewdietingrecipehashimsincehetriedtoloseweightthreemonthsago.A．for B．to C．on D．with2．We’llhavetofinishit,_____________.A．howeverittakeslong B．howeverlongittakesC．nomatterhowittakes D．nomatterhowlongdoesittake3．—Whendidyougettoknowyourgirlfriend?—Itwasin2015________shewasworkingasavolunteerinAfrica.A．that B．whichC．when D．then4．ProfessorLi________forhisinformativelecture,waswarmlyreceivedbythestudents.A．knownB．knowingC．havingknownD．tobeknown5．Thesecurityjudgewasvery_________whensheexplainedthatthedrivinglicencewasnecessaryforherwork.A．reasonable B．natural C．ridiculous D．available6．Mymother______angrywithme,butIcouldn’tshutmymouthbeforeIshoutedather!A．wasn’t B．wouldn’tbeC．wouldn’thavebeen D．hadn’tbeen7．--DidJimcome?--Idon’tknow.He_______whileIwasout.A．mighthavecome B．mightcomeC．musthavecome D．shouldhavecome8．____cleargoals,webecomestrangelyloyaltoperformingdailydoingsuntilwebecomeslavesofthem.A．OntopofB．InthesilenceofC．OnaccountofD．Intheabsenceof9．ThankstoChinesepeople’shardworkandwisdom,Chinahas_____intothesecondlargesteconomy.A．evolved B．slipped C．extended D．shaped10．Althoughpassingthedrivingtest________bedifficultnow,it’sworththeefforts.A．need B．shallC．can D．should11．Smoking______inthekitcheninmyhouse.A．doesn’tallowB．didn’tallowC．isn’tallowedD．won’tallow12．Theteacherspokesofastthatitwashardforthestudentsto______whathewassaying.A．takein B．takeoff C．takeon D．takeafter13．______suchaproblembefore,wehandledthesituationverywellthistime.A．Dealwith B．DealingwithC．Todealwith D．Havingdealtwith14．—Iwasintendedtototheconcertwithyouthisweekend,butIcan’tnow.—______.A．Bad B．That’srightC．Notatall D．You’rewelcome15．Greatpity!Hisillnessis________thetreatmentavailablesofar.A．within B．above C．about D．beyond16．—Whatdoyouthinkofteaching,Bob?—Ifinditfunandchallenging.Itisajob________youaredoingsomethingseriousandinteresting.A．which B．whereC．when D．that17．Hewouldbeinbetterhealthnow_______withtoomuchworkwhenyoung.A．hadhenotburdenedhimself B．ifhewasnotburdenedC．werehenotburdened D．hadhenotbeenburdenedhimself18．Thatstudentadmittedinthemathexam,thathewouldneverdothatagaininthefuture.A．tohavecheated,promising B．cheating,promisedC．tocheating,promised D．havingcheated,promising19．________backinhischair,themanbegantotellushisadventuresintheforests.A．SitB．SittingC．TositD．Sat20．Astothelong-termeffectsofglobalwarmingsomebelievethatthedamagehasbeendone,______________________.A．otherwisewetakestepstomakeupnowB．nowthatwetakestepstomakeupC．whetherwetakestepstomakeupnowornotD．unlesswetakestepstomakeupnow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）YoungpeopleintheUnitedStatesdonothaveastrongunderstandingoftheworldandtheirplaceinit.TwoUS-basedgroups,theCouncilonForeignRelationsandtheNationalGeographicSociety,conductedanonlinesurveylastyear.TheywantedtoknowwhatyoungpeopleinAmericancollegesknewaboutgeography,U.S.foreignpolicy,recentinternationalevents,andeconomics.Thesurveywasgiventoover1,200Americansbetweentheagesof18and26,allofthempresentlyattending,orhavingpreviouslygraduatedfrom.a2-or4-yearcollegeoruniversity.Theaveragetestscore,outof75totalpossibleanswers,was55percent.Thestudyidentifiesafewimportantproblems.Forexample,only30percentknewthattheonlypartoftheU.S.governmentthatcandeclarewarisCongress.Only60%ofthosetakingthesurveycouldidentifyBrazilonaworldmap.“Partoftheproblem,”arguetheorganizersofthesurvey,“istheInternet.”Theysayitisbecominghardertofindhigh-qualityinformationaboutworldeventsamongallthefakenewsandtrivia(琐事)whichswamp(淹没)theweb.Forty-threepercentofthosequestionedsaidtheyreadaboutthenewsonFacebook.Anotherproblemisthatmostcollegecoursesdonotrequirestudentstolearnaboutinternationalissues.Ifsuchinformationisnotrequired,RichardHaassfromtheCouncilonForeignRelationssaid,thentheUnitedStatescouldhaveleaderslikeGaryJohnson.HewasarecentpresidentialcandidatewhodidnotknowabouttheSyriancityofAleppowhenareporteraskedhimaboutit.Thesurveyresultswerenotallbad.Theyoungpeoplealsodemonstratedagoodunderstandingofclimatechangeandrenewableenergy.Andthemajorityofthemsaidthatinternationalissueswerebecomingmoreimportanttothem.Haasssaysthesefindingssuggesttheneedtofindwaystogetgoodinformationforstudents,bothinschoolandonline.Tohelp,theCouncilonForeignRelationsiscreatinganewprogramcalledCFRCampus,designedtohelpbuildknowledgeaboutglobalissues.1、Whatdoweknowaboutthesurvey?A．Theparticipantswereallrecentuniversitygraduates.B．ItwasanonlinesurveyconductedbytwoUSuniversities.C．Itwasgiventoover1,200Americanpeopleagedfrom18to26.D．ItaimedtofindoutwhattheyoungpeopleknowaboutAmerica.2、What’sonereasontheorganizersofthesurveygiveforyoungpeople’slackofknowledge?A．ThepoorqualityoftheUSuniversitysystem.B．Youngpeople’sunwillingnesstotravelabroad.C．ThesourcesfromwhichtheygeltheirinformationD．Theirlackofinterestinknowingmoreabouttheworld.3、WhattopicdidtheyoungAmericansunderstandbestaccordingtothesurvey?A．Governmentorganizations.B．Geographicinformation.C．Foreignrelations.D．Environmentalmatters.4、Inwhichpartofanewspapercouldwefindthisarticle?A．Economics. B．Education.C．NationalPolitics. D．Entertainment.22．（8分）Mytrackandfieldcoach,MrJones,haddecidedtogettheteamtotakepartinthe4x100mrace.Itwouldbethefirsttimethatwewererunninginsucharace.Weneededtoworkasateamtoimproveonourspeed.Themostcriticalmomentwasthepassingofthebaton(接力棒)attherighttimetothenextrunner.MrJoneshadchosenmetostarttherace.ThenextrunnerwouldbeSusan.Inthebeginning,wheneverwepractisedpassingthebaton,somethingwouldgoterriblywrong.Iwouldeitherbegoingtooslowlyorshewouldbetakingofftoolate.Weneededtoperfectit.Atthesametime,IhadtomakesurethatIwouldnotgobeyondtheyellowline.Finallyitwasthedayoftherace.Wewereconfidentthatthegoldmedalwouldbeours.Eachofushadimprovedinourrunningspeed.Ourpassingofthebatonhadbeenperfectedduringthepractices.MyreactionswereexactandaccurateasIstartedrunning.EverythingfeltthewayitshouldasIsprintedtowardsSusan.Iheldthebatoninmysweatypalms,promisingmyselfnottoletgo.MylonglegsmovedmeasfastasIcouldgoroundthecomer.AsIcameclosertomyfinalsteps,myheartwasbeatingfasterthanusual.Thecheeringbythespectators(观众)gotintomeandIbecamenervous.“Whatifwelose?”Ithoughttomyself.ItwasthenthatIsawSusaninthefardistance.IheldoutthebatonandcontinuedrunningquicklytowardsSusan.Susanyelled“Slowdown,slowdown!”However,itwastoolate.Theofficialhelduptheredflag.ItwasthenthatIrealizedthatIhadgonebeyondtheyellowline.1、Whatdoestheunderlined“it”inthesecondparagraphreferto?A．Goingtooslowly.B．Takingofftoolate.C．Passingthebaton.D．Goingbeyondtheyellowline.2、Whywasauthorconfidentofwinningtherace?A．Theyworkedasateamandweresupportedbythespectators.B．Theyhadperfectedtherunningspeedandthepassingofthebaton.C．Theyhadlearnedhowtoavoidbreakingtherulesintherace.D．Theygainedanadvantageofastablestateofmindintherace.3、Whatcanweinferabouttheauthor?A．Herantoofastthroughouttherace.B．Helosthisfocusintherace.C．Hisstartskillneededimproving.D．Hewasnotwell-trainedinrunning.4、Howwouldtheauthorfeelaftertherace?A．Proud.B．Grateful.C．Puzzled.D．Disappointed.23．（8分）AccordingtonewresearchfromtheUniversityofCambridgeinEngland,sheepareabletorecognizehumanfacesfromphotographs.Thefarmanimals,whoaresocialandhavelargebrains,werepreviouslyknowntobeabletorecognizeoneanother,aswellasfamiliarhumans.However,theirabilitytorecognizehumanfacesfromphotosaloneisnovel.Therecentstudy,theresultsofwhichwerepublishedinthejournalRoyalSociety;OpenScience,showthewoollycreaturescouldbetrainedtorecognizestillimagesofhumanfaces,includingthoseofformerPresidentBarackObamaandactressEmmaWatson.Initially,thesheepweretrainedtoapproachcertainimagesbybeinggivenfoodrewards.Later,theywereabletorecognizetheimagesforwhichtheyhadbeenrewarded.Thesheepcouldevenrecognizeimagesoffacesshownatanangle,thoughtheirabilitytodosodeclinedbyabout15percent—thesamerateatwhichahuman’sabilitytoperformthesametaskdeclines,“Anyonewhohasspenttimeworkingwithsheepwillknowthattheyareintelligentandindividualanimalswhoareabletorecognizetheirhandlers.”saidProfessorJennyMorton,wholedtheCambridgestudy.“We’veshownwithourstudythatsheephaveadvancedface-recognitionabilities,closetothoseofhumansandmonkeys.”Recognizingfacesisoneofhismostimportantsocialskillsforhumanbeings,andsomedisordersofthebrain,includingHuntington’sdisease,affectthisability.“Sheeparelong-livedandhavebrainsthataresimilarinsizeandcomplexitytothoseofsomemonkeys.Thatmeanstheycanbeusefulmodelstohelpusunderstanddisordersofthebrain,suchasHuntington’sdiseasethatdevelopoveralongtimeandaffectcognitive(认识的)abilities.Ourstudygivesusanotherwaytomonitorhowtheseabilitieschange.”Mortonsaid.1、Accordingtothenewresearch,what’sunusualaboutsheep?A．Theyhavelargebrains.B．Theycanrecognizetheirowners.C．Theycantellanimalsfromhumans.D．Theycanrecognizehumanfacesfromphotographs.2、Howdidtheresearcherstrainthesheep?A．Bygivingfoodrewards.B．Byshowingphotosoffamouspeople.C．Byguidingthemtofollowtheirhandlers.D．Byshowingphotosofhumansandmonkeysbyturns.3、Whatcanbeinferredfromthepassage?A．Sheephaveahigherface-recognitionabilitythanmonkeys.B．Thenewdiscoveryisofgreatbenefittothestudyofcognitiveabilitychanges.C．Thesheep’sface-recognitionabilitymaypreventsomedisordersofthebrain.D．Thesheep’sface-recognitionabilitystaysthesamewhenshownphotosatanyangle.4、What’sthebesttitleofthepassage?A．AWonderfulScientistB．TheLifeofSheepC．ANewDiscoveryaboutSheepD．HowSheepRecognizeEachOther24．（8分）Likealotofyoungpeople.JoannaRakofftookthefirstjobshewasoffered.ShedecidedtoworkatoneofNewYork’soldestliteraryagencies.Yetshehadnoideathatitwouldbethefirststeppingstoneonthewaytobecomingawriter,andlater,thenovelistsheistoday.Inthefaceoftheupsanddowns,shegaveitherall.Shecanstillrememberthatherbosswasverychallenging.“Thethingthatworkedwhenmybosswasbeingdifficultwasrememberingitwasn’tpersonal.Usually,it’snotaboutyou,it’sthem,”sheadvisesanyoneinasimilarsituation.Beingamanagerandeditorherselflaterinhercareeralsohelpedtomakesenseofwhathappenedyearsbefore.“It’sreallyhardmanagingalotofpeople.Ihadalotmoresympathyformyformerbossafterthat.Youdon’tknoweverythingthat’sgoingonwiththem,andremember:they’reaperson,too,”shesays.Afteronlyayear,Rakoffrealizedshewasnot“anagencyperson”ashermanagerhadbelieved,buttheseedhadbeenplanted.Sheleftwithdreamsofbecomingawriterandarealunderstandingoftheworldofglossy(亮丽光鲜的)magazines.Rakoffrosefromwritingmagazinearticlestofeatureseditor,andlatereditor-in-chief.Dreamsofonedaywritingfictionremained.“Writingpiecesformagazinesreallyhelpedmetobecomeanauthor.Ithelpedmakewritinglessscary.Whenyouwriteregularlyandhavedeadlines,itreallyteachesyouthatsometimesyouhavetositdownandjustdoit,”shesays.Withallthepressureonyoungpeoplethesedays,itisimportanttorememberyoudon’thavetobeintheperfectjobrightaway.What’smore,youdon’tneedtoknowwhatyouwanttobeordoforacareerassoonasyoufinishhighschoolorcollege.Rakoffexplainshowmanyofherverysuccessfulfriendsfounddifferentpathstowardbecomingfictionwriters.Thereisnothingwrongwithhavingajobtokeepyoubusyandpaythebillswhileyoufigureoutyourpassions,shesays.1、WhenJoannaRakoffwasofferedthefirstjob.she.A．gaveituptoseekforsomebetteropportunitiesB．leftitatoncebecausethebosswastoodemandingC．agreedtoworkfortheoldliteracyagencyinNewYorkD．accepteditbelievingitwouldleadtoherfuturesuccess2、HowcouldRakoffunderstandherbossintheliteraryagency?A．Shethoughtherbosswasundergreatpressure.B．Shebelievedherbossexpectedhertoworkbetter.C．Sheknewhercolleaguesweredoingwellenough.D．Shebecameamanagerandeditorherselflateron.3、Rakofflefttheliteraryagencywiththeambitionof.A．workingasamanagerB．writingformagazinesC．becomingafictionwriterD．beinganagencyperson4、WhatcanwelearnfromRakoff’sexperience?A．Thegrassisalwaysgreenerontheotherside.B．Keeponwhatyouaredoinguntilyousucceed.C．Landthebestjobassoonasyougraduatefromcollege.D．Aseeminglyimperfectjobmayaswellleadtosuccess.25．（10分）ChineseLanguageandCultureSummerCampinChinaShanghaiisthecitywhichwillpresentyouhowmodernizationmeetstradition,andhowwesternculturedanceswitheasterncivilization.SoitoffersabestplaceforyoutoparticipateinChineselanguageandculturesummercamp.InteractiveChineseLessonsOurChinesecoursesfocusondevelopingspeaking,listening,readingandwritingskillsinawell-balancedway,whileeachhasitsownfocus.Theteachingmaterialsweuse,offering12levelsofclasses,arewrittenspeciallyforourprogram.Forbeginners,speakingandlisteningabilitieswillbestressedwhileforadvancedlevelstudents,thecoursewilldevelopindepththeirskillsonChinesecharactersrecognition,longparagraphreadingandwriting,aswellasfluentconversation.SmallSizeClassesOurstudentscomefromallovertheworld,mostlybetween11and17yearsold,havingdifferentChineselevels.Theywillacceptlevelassessment(评估)onthefirstdayofcamp,andbeplacedintodifferentgroupsaccordingtotheirlanguagefluency.Inasmall-classsettingeachstudentcanreceiveindividualattentionfromteachersandachievebeststudyingresult.TraditionalCultureCoursesWeprovidevariousculturecoursestohelpstudentstodevelopinterestintraditionalChineseculture,whichwillbenefittheirlanguagelearning.Theculturecoursesinclude:Calligraphy,Traditionalbrushpainting,ChineseKong-fu,Tai-chi,Paper-cutting.DayCampDaycampisdesignedforparticipantswhohaveahostfamilyinShanghai.DaycamprunsfromMondaytoSundaybetween8:30and17:00.Daycamppackageincludes:ChineseclassesinthemorningsLunchCulturecourses,fieldtripandsportsactivitiesintheafternoonsOthers:Textbooks,studyingmaterials,camplifesouvenirDaycamppackageNOTincludes:AccommodationDailypickupanddropoffBreakfast,dinnerFieldtripisoptional.1、Whatisoneofthesummercamp’sfeatures?A．Itsteachingmaterialsareregularandcommontextbooks.B．Everyparticipantinthecamphastofinish12levelsofclasses.C．Beginnersattendtheclassstressingcharactersrecognition.D．Studentsareplacedingroupsthatmeettheirlanguagefluency.2、Thesummercamp’straditionalculturecoursesdon’tinclude________.A．TraditionalbrushpaintingB．ChineseKong-fuC．TraditionalChinesecookingD．Paper-cutting3、WhichofthefollowingdescriptionsaboutthedaycampisTRUE?A．Everyonewhoattendsdaycampwillreceiveacamplifesouvenir.B．Participantsindaycampcanhavebreakfast,lunchandsupperthere.C．Fieldtripisanactivitythateveryoneissupposedtoparticipatein.D．Daycampisdesignedforparticipantswholiveinthesummercamp.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）CommunicationwithaStrangerLastweekendIsatonthebustalkingwithexcitementandsoreadytospendtimeinNewYorkCitywithoneofmybestfriendsfromcollege.AsItookthewindowseatandworeheadphonesoverears,Ialmostdidn't1theelderlymansittingbesideme.TwohourspassedandIwasstillabsorbedinmyownworld.2theelderlymanaskedmeaquestion,asimplequestion3thebus'sWi-Ficonnection,whichturnedintoatwo-hour4.Infact,itdirectly5mypersonallife.Wetalkedalotaboutmydreams,myfearsandmylife.I6morewiththisstrangeronthebusthanIhavewithanyfriendorfamilymemberinmonths.Maybeithadsomethingtodowithmejustbeing7toletanyoneIknowclosetome.Iwas8thatthestrangerwasnotonlysodeeplyinterestedingettingtoknowme,butalsojustaswillingto9metomygreatestabilities.HelistenedcarefullytoeverywordIsaidandmadesomeuseful10attimes.Insteadofpolitely11hisheadwhenImentionedmymajor,hetoldmethatmystronglikingseemedtobepsychology,butnottheoneIwasstudying.HesaidthatheknewIwouldfacedifficultiesifIstudiedpsychologyandthathefullyunderstoodmy12forthefailure.Thiselderlymanmademe13theplansthatIhadlaidoutformylifewithjustthatsimplestatement.Hehelpedmerealizethatmyneatly14planforthenextfiveyearsofmylifewasn'tallthatneat,butactuallycomplexandfilledwith15.Mostofall,hehelpedme16thecomplex,notstayawayfromitbecauseofmyfearfortheunknown.I17alotfromtalkingwiththeelderlystranger.Afewdayslater,heemailedme,saying,“Ithinkyou're18forgreatthingsnomatterwhatyoudecidetodo.”Theemailwasfilledwithwordsof19Inafewhoursastrangershowedmeasenseofkindnessthatmademerealizethatlifeissometimes20butitisgoingtobeokay.1、A．check B．notice C．excuse D．believe2、A．Then B．Instead C．Again D．Also3、A．through B．with C．during D．about4、A．introduction B．explanation C．conversation D．competition5、A．affected B．controlled C．interrupted D．created6、A．searched B．shared C．demanded D．reviewed7、A．sorry B．curious C．anxious D．afraid8、A．puzzled B．bothered C．amazed D．disappointed9、A．push B．invite C．treat D．admit10、A．choices B．suggestions C．decisions D．efforts11、A．raising B．dropping C．turning D．nodding12、A．regret B．change C．fear D．desire13、A．prepare B．develop C．approve D．question14、A．replaced B．organized C．discussed D．predicted15、A．uncertainty B．danger C．responsibility D．conflict16、A．identify B．ignore C．seize D．accept17、A．suffered B．increased C．benefited D．experienced18、A．leaving B．heading C．watching D．caring19、A．encouragement B．protection C．admiration D．description20、A．stable B．normal C．painful D．serious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）SilkwasnottheonlyproducttobetransportedalongtheSilkRoad,1．othergoodssuchastea,medicinalherbsalsobeingexportedfromChina.Manymerchantsfoundinstantwealththroughthetradeinluxuryitems．RatherthantravelingtheentirelengthoftheSilkRoad,eachmerchanttradedgoodsalongonesectionoftheroute,2．(buy)theminonetownandthensellinginanother.Thetravelersandmerchantsalso3．(carry)manyideas,philosophiesandreligionswiththemalongtheSilkRoad.Ofallthese,Buddhism,4．camefromIndia,hadthegreatestinfluenceonChineseculture.It5．(eventual)becameChina'sprimaryfaith,6．（widespread)thantheoriginalChinesereligionsofConfucianismandTaoism．SilkRoadtradestraveledtogetherinlongcaravansofcamels.Thismodeoftravelprovided7．(protect)fromrobberswhomightattempt8．(rob)thevaluablegoodsbeingtransported．TheSilkRoadwasnotonlyonesingleroad,but9．wholecollectionofroutesbywhichgoods10．(transport)betweentheEastandtheWest．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、删除和修改。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：在错的词下划一横线，并在该词下面写出修改后的词。注意：1.每处错误及其修改仅限一词；2.只允许修改10处，多者（从第11处起）不计分。LastSaturday,ourclasspaidthevisittotheWelfareCentreforchildreninourcity.Onourarrival,wedonatedsomegifttothekids,whichmadethemverypleased.Thenwedidwhatwecouldhelpthem.Somesweptandtidiedtheirrooms.Someplaygameswiththem.Andotherstoldinterestingstoriestothem.Thedaypassedquicklyafterweknewit.Honestlyspeaking,thoughtired,theyweremuchhappierthaneverthatday.Thereasonisthatwhenwehelpwithothers,wealsogetsomethingmoreimportantly.Therefore,showyourloveandcare,oroursocietywillbemorebeautyandmoreharmonious.第二节书面表达（满分25分）29．（25分）假定你是李华，作为交换生在一所英国学校交流学习。现在你即将回国，要作为学生代表在欢送会上发言，请按下列要点写一篇发言稿：1.表示感谢；2.学习的收获和感受；3.表达祝愿。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、B3、C4、A5、A6、C7、A8、D9、A10、C11、C12、A13、D14、A15、D16、B17、A18、D19、B20、C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、Youcan’tmakeacallorsendatextonyourmobilephoneintheUStownofGreenBank,WestVirginia.WirelessInternetisoutlawed,asisBluetooth.Asyouapproachthetinytownonatwo-laneroadthatsnakesthroughthemountains,yourmobilephonesignaldropsout,andyourradiostopsworking.Therustedpayphoneonthenorthsideoftownistheonlywayforavisitortoreachtherestoftheworld.It’sapre-modernplacebydesign,lackingofthelatesttechnologiesthatdefinelifetoday.Thereasonforthetown’semptyairwavesisapparentthemomentyouarrive.It’stheRobertC．Byrdtelescope,alsoknownastheGBT,ashinywhite,147-metre-tallsatellitedish.It’sthelargestofitskindintheworldandoneofnineinGreenBank,allofthemgovernmentownedandoperatedbytheNationalRadioAstronomyObservatory(NRAO).Youdon’tlookthroughthesekindsoftelescopes.They’reradiotelescopes,soinsteadoflookingfordistantstars,theylistenforthem.There’salonglineofastronomersallovertheworldwhowanttousethetelescopewhichissosensitivethatitcouldhearasinglesnowflakehittingtheground1,000milesaway.Suchasensitivelisteningtoolneedstotaltechnologicalsilencetooperate,soin1958theUSgovernmentcreatedaNationalRadioQuietZone,a33,000km2areacoveringGreenBankwhere,tothisday,electronicandradiosignalsareforbiddeneveryhourofeveryday.Peoplewholivewithina