北京成人本科英语模拟72

［模拟］北京成人本科英语模拟72ReadingComprehensionDirections:Therearethreepassagesinthispart.Eachpassageisfollowedbysomequestionsorunfinished.statements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.YoushoulddecideonthebestchoiceandmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecenter.Questions1to5arebasedonthefollowingpassage.(76)(Earthquakeisashakingofthegroundcausedbythesuddenbreakingandtheshiftingoflargesectionsoftheearth,srockyoutershell.)Earthquakesareamongthemostpowerfuleventsonearth,andtheirresultscanbeterrifying.Asevereearthquakemayre-leaseenergy10,000timesasgreatasthatofthefirstatomicbomb.Rockmovementsdur-inganearthquakecanmakeriverschangetheircourses.Earthquakescantriggerlandslidesthatcausegreatdamageandlossoflife.Largeearthquakesbeneaththeoceancancreateaseriesofhuge,destructivewavescalledtsunamisthatfloodcoastsformanymiles.Earthquakesalmostneverkillpeopledirectly.Instead,manydeathsandinjuriesinearthquakesresultfromfallingobjectsandthecollapseofbuildings,bridges,andotherstructures.Fireresultingfrombrokengasorpowerlinesisanothermajordangerduringaquake.Spillsofhazardouschemicalsarealsoaconcernduringanearthquake.(77)(Theforceofanearthquakedependsonhowmuchrockbreaksandhowfaritshifts.)Powerfulearthquakescanshakefirmgroundviolentlyforgreatdistances.Duringminorearthquakes,thevibrationmaybenogreaterthanthevibrationcausedbyapassingtruck.Onaverage,apowerfulearthquakeoccurslessthanonceeverytwoyears.Atleast40moderateearthquakescausedamagesomewhereintheworldeachyear.About40,000to50,000smallearthquakes-largeenoughtobefeltbutnotdamaging-occurannually.第1题：Thepassageismainlyabout.A.earthquakesandtheireffectsB.thewayofearthquakestakingplaceC.theclassificationofearthquakesD.thedamagingresultsofearthquakes参考答案：A答案解析：本题主要考查考生对文章整体意思的把握。本文主要介绍了地震产生的原因、强度、释放的能量以及带给人们的影响，故选A。第2题：Whenanearthquakeoccurs,.A.peoplearekilledandinjuredB.rocksarebreakingandshiftingC.destructivewavesfloodthecoastsformilesD.largesectionsoftheearth,srockyoutershellsuddenlybreakandshift参考答案：D答案解析：由开头第一句可知，地震产生的原因是由于大面积的地壳岩层的突然破裂和移动所致。故选D。第3题：Theearthquakeswhichmaynotbesodestructiveare.A.thosebeneaththeoceanB.thosedonotkillpeopledirectlyC.moderateearthquakesD.minorearthquakes参考答案：D答案解析：由第三段最后一句可知，一场强度小的地震所产生的振动可能并不比一辆路过的卡车所产生的振动强烈。故选D。第4题：Theintensityofanearthquakedependson.A.themovementsoftheearth,sshellB.whereittakesplaceC.theinjuriesitcausesD.howfarawayitisfromacity参考答案：A答案解析：由第三段第一句可知，地震的强度大小是依据岩石断裂的数量和它们所移动的距离，这可概括为地壳的运动。故选A。第5题：Itisimpliedthat.A.powerfulearthquakesusuallyoccurafterminoronesB.modernfacilitiesaddtothedangerofanearthquakeC.passingtrucksareasdangerousasminorearthquakesD.thereisapowerfulearthquakeoccurringeverytwoyears参考答案：B答案解析：由第二段可知，地震本身并不是导致人们死亡和受伤的直接原因，而是由于倒塌的建筑以及它们之间的互相碰撞所造成的。而其他的诸如火灾等灾难也是因泄漏气体等原因造成的，而这些都是现代化的设施所导致的。故选B。Questions6to10arebasedonthefollowingpassage.Letchildrenlearntojudgetheirownwork.Achildlearningtotalkdoesnotlearnbybeingcorrectedallthetime:ifcorrectedtoomuch,hewillstoptalking.Henoticesathou-sandtimesadaythedifferencebetweenthelanguageheusesandthelanguagethosearoundhimuse.Bitbybit,hemakesthenecessarychangestomakehislanguagelikeotherpeople,s.__78)__Inthesameway,childrenlearntodoalltheotherthingswithoutbeingtaught-towalk,run,climb,whistle,rideabicycle-comparetheirownperformanceswiththoseofmoreskilledpeople,andslowlymaketheneededchanges.)Butinschoolwenevergiveachildachancetofindouthismistakesandcorrectthemforhimself.Wedoitallforhim.Weactasifwethoughtthathewouldnevernoticeamistakeunlessitwaspointedouttohim,orcorrectitunlesshewasmadeto.Lethimworkout,withthehelpofotherchildrenifhewantsit,whathiswordsays,whattheansweristothatproblem,whetherthisisagoodwayofsayingordoingthisornot.Ifitisamatterofrightanswers,asitmaybeinmathematicsorscience,givehimtheanswerbook.Lethimcorrecthisownpapers.Whyshouldweteacherswastetimeonsuchroutinework?Ourjobshouldbetohelpthechildwhenhetellsthathecan,tfindthewaytogettherightanswer.__79)__Letthechildrenlearnwhatalleducatedpersonsmustsomedaylearn,howtomeasuretheirownunderstanding,howtoknowwhattheyknowordonotknow.__第6题：Accordingtothepassage,thebestwayforchildrentolearnthingsisby .A.askingolderpeoplemanyquestionsB.listeningtoskilledpeople,sadviceC.makingmistakesandcorrectingthemD.doingwhatotherpeopledo参考答案：D答案解析：文章第一段HenoticesathousandtimesadaythedifferencebetweenthelanguageheusesandthelanguagethosearoundhimuseBitbybit,hemakesthenec-essarychangestomakehislanguagelikeotherpeople's.就指出孩子们是通过做其他人所做的去学习知识，后面作者又举例来强调这一观点。第7题：WhichofthefollowingdoestheauthorthinkteachersshouldNOTdo?A.Letchildrenmarktheirownwork.B.Allowchildrentomakemistakes.C.Pointoutchildren,smistakestothem.D.Givechildrencorrectanswers.参考答案：C答案解析：文章第二句指出：Achildlearningtotalkdoesnotlearnbybeingcot-rectedallthetime：ifcorrectedtoomuch,hewillstoptalking.就表明老师不应该总是给孩子们指出他们的错误。第8题：Accordingtotheauthor,teachersinschoolshould.A.allowchildrentolearnfromeachotherB.pointoutchildren,smistakeswheneverfoundC.correctchildren,smistakesassoonaspossibleD.givechildrenmorebookknowledge参考答案：A答案解析：这道题可以通过排除的方法解决，B和C选项都在前面提到过，不符合题意，D选项文章没有提到，也可排除，所以应该选A。第9题：Thepassagesuggeststhatlearningtospeakandlearningtorideabicycleare.A.differentfromlearningotherskillsB.thesameaslearningotherskillsC.notreallyimportantskillsD.moreimportantthanotherskills参考答案：B答案解析：文章第五句中提到inthesameway同样地，就说明和前面所提到的是同一观点。第10题：Thebesttitleforthispassagecouldprobablybe.A.LetChildrenCorrectTheirExercisesB.LetUsMakeChildrenLearnC.LetUsTeachersStopWorkD.LetChildrenLearnByThemselves参考答案：D答案解析：文章自始至终都是围绕让学生自己去学会知识而展开，因此题目应该是D选项最合适。Questions11to15arebasedonthefollowingpassage.Everyhumanbeing,nomatterwhatheisdoing,givesoffbodyheat.Theusualprob-lemishowtodisposeofit.ButthedesignersoftheJohnstowncampusoftheUniversityofPittsburghsetthemselvestheoppositeproblem-howtocollectbodyheat.Theyhavede-signedacollectionsystemwhichutilizesnotonlybodyheat,butalsotheheatgivenoffbysuchobjectsaslightbulbsandrefrigeratorsaswell.Thesystemworkssowellthatnocon-ventionalfuelisneededtomakethecampus,ssixbuildingscomfortable.Somepartsofmostmodernbuildings-theatersandofficesaswellasclassrooms-aremorethanamplyheatedbypeopleandlightsandsometimesmustbeair-conditionedeveninwinter.Thetechniqueofsavingheatandredistributingitiscalled"heatrecovery."Afewmodernbuildingsrecoverheat,buttheUniversity,ssystemisthefirsttorecoverheatfromsomebuildingsandre-useitinothers.Alongtheway,Pitthaslearnedagreatdealaboutsomeofitsheatproducers.Theharderastudentstudies,themoreheathisbodygivesoff.__80)__Malestudentsemitmoreheatthanfemalestudentsdo,andthelargerastudentis,themoreheatheproduces.)ItistemptingtoconcludethatthehottestprospectfortheJohnstowncampuswouldbeahard-working,overweightmalegenius.第11题：Untilrecently,bodyheathascausedproblemsbecauseit .A.wasdifficulttocollectB.cameinavarietyofformsC.wasdifficulttogetridofD.tendedtobeabsorbedbyphysicalobjects参考答案：C答案解析：答案在开头的第二句：Theusualproblemishowtodisposeofitdisposeof处理，解决。第12题：WhichofthefollowingistrueoftheheatingsystemoftheJohnstowncampus?A.Theheatissuppliedbyhumanbodiesonly.B.Theheatissuppliedbybothhumanbodiesandotherheat-emittingobjects.C.Theheatissuppliedbybothhumanbodiesandconventionalfuel.D.Theheatissuppliedbyhumanbodies,otherheat-emittingobjects,andcon-ventionalfuel.参考答案：B答案解析：答案在第一段的第四和第五句中。他们设计了一种收集系统，它不但利用人体的热，还收集由灯泡、冰箱等散发出来的热。有了这两种热能，作者指出在校园中已无需任何conventionalfuel。第13题：Thephrase"eveninwinter"__Lines8〜9)mostnearlymeans.A.ifthewinterisespeciallywarmB.duringalloftheyearexceptthewinterC.inwinteraswellasinotherseasonsD.duringtheeveningsinwinter参考答案：C答案解析：第二段中说：大多数现代化的大楼有些部分中一一剧院、办公室以及教室一一人体和灯泡散发出来的热能过于充沛，有时候甚至在冬天还需要空调散热。even意为“甚至”。第14题：Thephrase"heatrecovery"referstoa .A.methodofconcealingthesourceofheatB.specialformofair-conditioningC.supplementaryhotwatersystemD.wayofreclaimingandre-usingheat参考答案：D答案解析：回收再利用热能。此题考查考生对全文的总结能力，以及reclaim和re-use的词义。第15题：AccordingtothepassagewhichofthefollowingwouldproducetheLEASTamountofheat?A.Afatfemalewhostudieshard.B.Athinfemalewhodoesnotstudy.C.Afatmalewhodoesnotstudy.D.Athinmalewhostudieshard.参考答案：B答案解析：最后一段倒数第二句说，男生发出的热量比女生发出的热量多，学生体积越大产生的热量越多。学习刻苦的比学习不刻苦的产生的热量多。所以最瘦的、学习不努力的女生产生的热量最少。PartIIVocabularyandStructureDirections:Inthispart,thereare30incompletesentences.ForeachsentencetherearefourchoicesmarkedA,B,CandD.ChoosetheONEanswerthatbestcompletesthesentence.ThenmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecenter.第16题：Ifyouthatnight,youmighthavebeentoolatetogetyourticket.A.didn,thurryB.hadn,thurriedC.wouldn,thurryD.hadn,ttohurry参考答案：B答案解析：与过去事实相反的虚拟语气。第17题：Hisparentsdiedwhenhewasyoungsohewasbyhisaunt.A.bredB.fedupC.broughtupD.grownup参考答案：C答案解析：bringup抚养；bred是breed“繁殖，生子，下蛋”的过去分词；feedsb.up给吃饱。第18题：Hefindsitdifficulttohimselftotheclimatehere.A.accountB.accustomC.applyD.adopt参考答案：B答案解析：accustomoneselfto适应，习惯于。第19题：--1thinkheistakinganactivepartinsocialwork.--1agreewithyou.A.inawayB.onthewayC.bythewayD.intheway参考答案：A答案解析：本题考查的是介词短语的辨析。inaway在某种程度上；ontheway在途中，接近；bytheway在途中，顺便；intheway挡道，碍事。本句的意思是：“我认〃为他对社会工作很积极。”“我在某种程度上同意你。”第20题：Theyussincefiveo,clockthismorninguntilnow.A.arehelpingB.helpC.havehelpedD.havebeenhelping参考答案：D答案解析：sincefiveo,clockthismorninguntilnow自从今天早上五点钟直到现在，这一段时间一直在帮助我们。第21题：Allstudentsaretotherulesoftheschool.A.obeyingB.objectC.subjectD.according参考答案：C答案解析：besubjectto受到，经受。本句的意思是：“所有的学生都要遵守学校的纪律。”第22题:Thewriterwasalwayslookingforsuitabletouseinhisnextstory.A.contentsB.articlesC.pagesD.ideas参考答案：D答案解析：suitableideas"合适的思想”是比较正确的。第23题:Theroughdraftofanyresearchreportshouldbeeditedtothatalldataarecorrectlypresented,thatallequipmentsarelisted,thatallresultsareproperlyde-tailed.A.ensureB.assureC.secureD.insure参考答案：A答案解析：ensure”保证，确保"常指确保某事发生，后常接从句。assure”保证，担保”，常用来向某人保证某事会发生，其固定搭配为assuresb.ofsth./that…。ensure和assure后接抽象名词时，意义相同，如Weeksofpracticeensured/as-suredsuccessinthematch.secure”得到，使安全“。insure“给……保险，确保(against)”，常指为防不测向保险公司投保。本句的意思是：“任何研究报告的草稿都应经过编辑以确保所有数据都被正确地提出，所有的仪器都被列出，所有的结果都被详细准确地写下。”第24题：Someanimalscaninthedesertonverylittlewater.A.surviveB.starveC.relieveD.routine参考答案：A答案解析：survive存活。第25题:Thepolicedontknowwhocommittedthecrime,buttheyJones.A.doubtB.suspectC.regardD.consider参考答案：B答案解析：suspect怀疑。doubt泛指一种怀疑的态度，如：Idoubtthetruthofthenews.我怀疑这消息的真实性。doubt作动词时仅用于两种简单的句型，即后接宾语或宾语从句。suspect多用于具体的“怀疑”，即举出怀疑对象和怀疑内容，可用的句型也比doubt丰富得多。如：Theoverseer（监工）suspectedhimoftheft.第26题:IfIcouldputbacktheclock,Illgivemorethoughttoforacareer.A.prepareB.bepreparedC.preparingD.haveprepared参考答案：C答案解析：giveathoughtto思考一下，想一想，这里to是介词。第27题:--Whatsthematter?Why?--Thesignalisagainstus.A.thetrainstoppingB.doesthetrainstopC.isthetrainstoppingD.didthetrainstop参考答案：C答案解析：用排除法。A、B、D都不对，D是过去时，而前面是现在时，所以后面为将来时态更合适。第28题：Hardlyanythingmorethanthehappinessofseeingsomeoneusinghisde-vicefortreatment.A.pleasehimB.doespleasehimC.pleaseshim10D.doeshimplease参考答案：C答案解析：一般情况下，表示否定意义的副词置于句首时，句子应部分倒装。但如果否定的副词修饰主语，是主语的一部分，句子就不必倒装。本题中Hardly修饰主语anything，因此句子不必倒装，用正常语序。本句的意思是：“几乎没什么比看到有人将他的设备用于治疗更令他开心了。”第29题：Thenexttrainthestationat11o,clock.A.leavesB.hasleftC.leftD.leaving参考答案：A答案解析：现在时表将来。第30题：Assoonaschildrenwere,theirmothergotthemoutofbedandintothebathroom.A.wokeB.awokeC.awakeD.woken参考答案：D答案解析：孩子一醒他们的母亲就让他们起床进洗澡间。woken是wake的过去分词，这里是过去分词当形容词用，意思是“醒来，醒着”。第31题：Yourexperimentreportsmustbecheckedwithcarebefore.A.handedtheminB.themhandinginC.beinghandedinD.handingthemin参考答案：C答案解析：before后要加动名词且是被动的。11第32题：TwoTVcameraseyesofamechanicalman.A.areservedasB.serveasC.willbeserveasD.wereserveas参考答案：B答案解析：serveas充当，权当，起 作用。第33题：Bynextweekthenewregulations.A.willintroduceB.aretointroduceC.aretobeintroducedD.willhaveintroduced参考答案：C答案解析：本句要用将来被动态。第34题：Hehasatongue,butisusuallysorryafterward.A.swiftB.fastC.rapidD.quick参考答案：D答案解析：quick快，敏捷；aquicktongue快嘴快舌。第35题：Wethinkitpossiblethelocalgovernmentwillbeabletosolvethehousingproblem.A.forB.thatC.whenD.how参考答案：B答案解析：本题考查的是形式宾语。由于从句结构不缺成分，意思完整，所以选择that。本12句的意思是：“我们认为可能地方政府将能够解决住房问题。”第36题：ThedirectorrecommendedsheEnglishbeforegoingabroad.A.havetostudyB.studyC.studiesD.willstudy参考答案：B答案解析：在recommend之后的宾语从句中谓语动词要用虚拟语气，所以study正确。第37题:Theremorethanonecausecontributingtotheaccident.A.wereB.wasC.beD.havebeen参考答案：B答案解析：morethanonecause是单数。第38题:IvegotaveryscheduletodaysoIcantseeyouuntiltomorrow.A.seriousB.bigC.toughD.tight参考答案：D答案解析：tight紧张的；serious严肃的，一本正经的；tough强韧的，艰苦的。第39题:Hegavenoopinionaboutthematterbecausehedidntwanttorisk init.A.toinvolveB.beinginvolvedC.tobeinvolvedD.involving13参考答案：D答案解析：risk后面要加动名词，involve使陷入，使卷入（漩涡）。这类动词还有enjoy,finish,giveup，suggest，avoid，excuse，feellike，imagine，mind，miss，prac-tise，postpone，understand等。第40题：BecausetheUnitedStatesisnotsurroundedbymanyothernations,someAmeri-canstendtotherestoftheworld.A.ignoreB.declineC.neglectD.overlook参考答案：A答案解析：本题考查近义词的辨析。ignore“忽视，不顾”，通常指有意地忽视或故意不理睬。decline"减少，下降；衰落；婉言拒绝"。neglect"疏忽，忽视，忽略”，通常指对自己的职责、义务、家庭等没有给予应有的重视。。verlook“忽略，漏掉，未看见”，指由于匆忙、粗心大意而忽略，尤指监督检查方面的遗漏。本句的意思是：“因为美国没有被许多周边国家包围，一些美国人往往忽视世界上的其他地方。”第41题：IfJohntomorrow,hewillworkinthegarden.A.comesB.cameC.iscomingD.willcome参考答案：A答案解析：主句是将来时，从句就要用一般现在时表示将来。第42题：Hesaidthattherewasnothingtobe.A.ashamedB.ashamedinC.ashamedofD.ashamedat参考答案：C答案解析：beashamedof因（替） 感到害臊。14第43题：Weaswellleaveheretoday.A.mustB.mightC.needD.can参考答案：B答案解析：may(might)aswell最好，不妨，还是 的好。第44题：Leavemealone;mindyourown.A.eventsB.affairsC.thingsD.matters参考答案：B答案解析：leavemealone不要管我。第45题：Youallthoseclothes!Wehaveawashingmachinetodothatsortofthing.A.needn,thavewashedB.shouldn,thavewashedC.mustnothavewashedD.cannothavewashed参考答案：A答案解析：本题考查的是情态动词的应用。A本不需要；B本不应该。根据句意应选择A。must的意思是“禁止”，can的意思是“能够”。本句的意思是：“你本不必洗那些衣服!我们有洗衣机做那种事情。”PartIUIdentificationDirections:EachofthefollowingsentenceshasfourunderlinedpartsmarkedA,B,CandD.Identifytheonethatisnotcorrect.ThenmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecenter.15第46题：Hisfathermentioned(tome)thatRobert(hadwrittento)(him)requestingmoney(forbuying)anewear.A.tomeB.hadwrittentoC.himD.forbuying参考答案：D答案解析：改为tobuy。request要求，请求。第47题：(However)(itis)youhaveheard,(you'dbetter)askhimaboutit(in)person.A.HoweverB.itisC.you,dbetterD.in参考答案：A答案解析：改为whatever。本句意思是：不管你听到什么，你最好亲自请教他。第48题：TheJoneses(havevisited)HawaiiandAlaska,andthey(assureme)that(they)likeAlaska(thebest).A.havevisitedB.assuremeC.theyD.thebest参考答案：D答案解析：改为better。这里是二者进行比较，所以没有最高级。第49题：(If)theexperimentsucceedsorfails,itwill(provideus)withvaluable(experience)whichisessentialto(improving)ourfuturework.A.IfB.provideusC.experienceD.improving16参考答案：A答案解析：改为Whether。因为在从句中后面有个or,所以用Whether。第50题：Let's(go)(andask)(theteacher),(willyou)?A.goB.andaskC.theteacherD.willyou参考答案：D答案解析：改为shallwe?本题考查的是反意疑问句。本句的意思是：“让我们去问问老师吧，好不？”第51题：Asnooneinthesmallvillage(knew)(nothing)aboutmedicine,Mrs.Smith,afor-mernurse,(hadto)work(as)adoctor.A.knewB.nothingC.hadtoD.as参考答案：B答案解析：改为anything。前面是否定，后面就必须用anything，用nothing就是双重否定了。第52题：Restrictyourselftooneortwo(pages),and(listing)any(publications)orrefereeson(aseparate)sheet.A.pagesB.listingC.publicationsD.aseparate参考答案：B答案解析：改为list，与restrict平行。本题考查的是平行结构。本句的意思是：“把你的文章限制在一页或两页，并且把出版物或参考书目单列一页。”第53题:17(Forseveral)yearsnow,thestudentbody(isattempting)togain(more)influence(over)universitypolicies.A.ForseveralyearsnowB.isattemptingC.moreD.over参考答案：B答案解析：改为hasbeenattemptingofor的短语表示几年来一直做某事，所以用现在完成进行时。第54题:Ifhehadapplied(byAugust)15,theuniversity(hadaccepted)(him)(this)semester.A.byAugustB.hadacceptedC.himD.this参考答案：B答案解析：改为wouldhaveaccepted。这是与过去事实相反的虚拟语气。第55题：Marywas(surprisedto)realizethatitwas(us),herold(schoolfriends),(calling)herfromParis.A.surprisedtoB.usC.schoolfriendsD.calling参考答案：B答案解析：改为we。这里we是主语，因此要用主格形式。ClozeDirections:Thereare20blanksinthefollowingpassage,andforeachblankthereare4choicesmarkedA,B,CandDattheendofthepassage.YoushouldchooseONEanswerthatbestfitintothepassage.ThenmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecenter.18Musiccomesinmanyforms;mostcountrieshaveastyleoftheirown.__56__theturnofthecenturywhenjazzwasborn,Americahadnoprominent__57__ofitsown.Nooneknowsexactlywhenjazzwas__58__,orbywhom.Butitbegantobe__59__intheearly1900s.JazzisAmerica,scontributionto__60__music.Incontrasttoclassicalmusic,which__61__formalEuropeantraditions,jazzisspontaneousandfreeform.Itbubbleswithenergy,__62__themoods,interests,andemotionsofthepeople.Inthe1920sjazz__63__likeAmerica,and__64__itdoestoday.The__65__of thismusicareasinterestingasthemusic__66__AmericanNegroes,orblacks,astheyarecalledtoday,werethejazz__67__TheywerebroughttoSouthernStates__68__slaves.Theyweresoldtoplantationownersandforcedtoworklong__69__WhenaNegrodiedhisfriendandrelatives__70__aprocessiontocarrythebodytothecemetery.InNewOrleans,abandoftenaccompaniedthe__71__Onthewaytotheceme-terythebandplayedslow,solemnmusicsuitedtotheoccasion.__72__onthewayhomethemoodchanged.Spiritslifted.Deathhadremovedoneoftheir__73__,butthelivingweregladtobealive.Thebandplayed__74__music,improvising__即兴表演）onboththeharmonyandthemelodyofthetunes__75__,atthefuneral.Thismusicmadeeveryonewanttodance.Itwasanearlyformofjazz.第56题：A.ByB.AtC.InD.On参考答案：B答案解析：这里attheturnofthecentury表示“在本世纪初”这一具体时间，故只有at符合题意。第57题：A.musicB.songC.melodyD.style参考答案：D答案解析：根据上文所说的大多数国家都有自己的音乐风格（style）,而美国却没有自己突出的，后面也应该是风格，故选style。19第58题:A.discoveredB.actedC.inventedD.designed参考答案：C答案解析：本句意为“没有人确切地知道爵士乐是什么时候发明的，由谁发明的"。discover意为“发现”，act意为“行动，扮演"，invent意为“发明"，design意为“设计“。故选invent。第59题:A.noticedB.foundC.listenedD.heard参考答案：D答案解析：这里是说爵士乐被听到，所以用heard°listen的意思是“听”，而且需接介词to,A、B两项意思不符。第60题：A.classicalB.sacredC.popularD.light参考答案：C答案解析：popularmusic：是指"流行音乐"，与classicalmusic（古典音乐）相对。爵士乐（jazz）是流行音乐的一种，故选popular。第61题:A.formsB.followsC.approachesD.introduces参考答案：B答案解析：此处是说古典音乐遵循正规的欧洲传统。form意为“形成"，follow意为“遵循”，approach意为“接近，靠近”，introduce意为“引进，介绍”。20第62题：A.expressingB.explainingC.exposingD.illustrating参考答案：A答案解析：express意为"表达”，与后面的宾语moods（情绪）、interests（兴趣）以及emotions（感情）相搭配。explain意为“解释，说明”，expose意为“揭露，使暴露"，illustrate意为“阐明”。第63题：A.appearedB.feltC.seemedD.sounded参考答案：D答案解析：本句意为“在20世纪20年代，爵士乐听起来像是美国风格”。只有sound有“听起来”的意思。其他三个词都无此意。第64题：A.asB.soC.eitherD.neither参考答案：A答案解析：本句意为“就像爵士乐今天的样子”，as意为“正如，就像”，后面接句子。第65题：A.originsB.originalsC.discoveriesD.resources参考答案：A答案解析：origins意为"起源，起始”，originals意为“原作，原物”，discov-eries意为“发现"，resources意为“资源”。此处句意为“爵士乐的起源”，故选21A。第66题：A.concernedB.itselfC.availableD.oneself参考答案：B答案解析：本句是说这种音乐的起源和音乐本身一样有趣。故此处应选择反身代词itself。第67题：A.playersB.followersC.fansD.pioneers参考答案：D答案解析：本句意为“美国的黑奴是爵士乐的先锋”。players意为“演奏者”，followers意为“追随者”，fans意为“（爵士乐）迷”，pioneers意为“先锋，开拓者”。第68题：A.forB.asC.withD.by参考答案：B答案解析：本句意为“他们被作为奴隶带到南部各州”。只有介词as意为“作为”，符合此意。第69题：A.monthsB.weeksC.hoursD.times参考答案：C答案解析：本句意为“黑奴们被卖给南方种植园主们而且被迫长时间地劳动”。10ng一般不与months和weeks搭配；hours指工作时间；times指次数或倍数，当一段时间22讲时是不可数名词，故只可选hours。第70题：A.demonstratedB.composedC.hostedD.formed参考答案：D答案解析：demonstrate意为“论证，说明，示威”；compose后接介词of，意为“组成”；host意为“款待，作乐”；form与procession搭配，意为“形成队列”。故选D。第71题：A.demonstrationB.proces