大学英语六级模拟试卷26（共380题）

大学英语六级模拟试卷26（共5套）（共380题）大学英语六级模拟试卷第1套一、作文(本题共1题，每题1.0分，共1分。)1、Directions:Forthispart,youareallowedthirtyminutestowriteashortessayentitledGoodMannersYoushouldwriteatleast150wordsfollowingtheoutlinegivenbelow:1.礼貌的含义2．礼貌对我们社会的重要意义3．我们应该怎么看待礼貌GoodManners标准答案：GoodMannersGoodmannersmeanpolitebehaviors,followingthesocialetiquetteswhicharetacitlyagreeduponbyitssociety.Goodmannersareofprofoundsignificancetobothindividualandsociety.Inanarrowview,goodmannerscanrenderapersonelegant,refined,andeasytolike.Awell-manneredpersoncanmakethepeoplearoundhim/herfeelcomfortableandpleased.Inabroadview,goodmannerscanmakegreatcontributionstotheharmonyofasociety.Wecan’tdenyhuman’sirreconcilabledifferencesinphilosophy,politicsorreligion.Goodmannerscan,thoughnoteradicatethem,disguisethoseantipathiesthatarise.Otherwise,oursocietywouldbeplungedintochaos.Inordertokeepthesocialwheelsspinningsmoothly,weshouldstandardizegoodmannersandeducatepeopletoperformaccordingly.知识点解析：暂无解析二、快速阅读理解(本题共10题，每题1.0分，共10分。)Directions:Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthequestionsonAnswerSheet1.Forquestions1-4,markY(forYES)ifthestatementagreeswiththeinformationgiveninthepassage;N(forNO)ifthestatementcontradictstheinformationgiveninthepassage;NG(forNOTGIVEN)iftheinformationisnotgiveninthepassage.Forquestions5-10,completethesentenceswiththeinformationgiveninthepassage.TheAdvantagesofCommunicativeLanguageTeachingAsateachertrainerworkingwithinternationalgroups,Iamfrequentlyaskedtoincludeanoverviewofcommunicativelanguageteaching(CLT),anddiscusswaysofadaptingmaterialstomakelessonsmorecommunicativeorinteractive.MostgroupsareenthusiasticaboutthelessonopportunitieswhichCLToffers.However,somealsoindicatedtheyfeltconstrainedbythesystemunderwhichtheyoperated,especiallythoseteachinginsettingswhichareparticularlyexam-focused.Inaddition,theyqueriedtherelevanceofCLTtotheirsituation,wheremanyofthestudentsneverusedEnglishoutsidetheclassroom.Incontrast,Ihadshiftedacrossaspectrumoflearners,enthusiasticallytakingCLTalongwithmeasuniversallyappropriate.Takingmycolleagues'concernsonboard,IbegantoquestiontheappropriatenessofCLTforsomeofthesediverselearnergroups.Thiswassupportedbycurrentreadingonthetopic;thetitlesofsomearticlesmademethinkIshouldgiveupthesupportforCLTthenandthere.However,themoreIreadonthetopic,themoreIdefendedthecontinuedsuitabilityofCLT.Itreallydoesbenefitthestudentsinavarietyofways.ElementsofCLTCommunication—AccordingtoAbilityWhetherCLTshouldbeconsideredanapproachoramethodologyisamoreabstractdebateandhereIwanttodealwithitsmorepracticalaspects,infact,itisthoseveryelements,andthenameitself,whichhavebeenusedtochallengethefuturerelevanceofCLT.Firstly,thelabelimpliesafocusoncommunicationandsomemightarguethatthismethodcan'tbeemployedgenuinelywithlowlevelsasthereisnoauthenticcommunication,duetoalimitedvocabularyandrestrictedrangeoffunctions.Initially,manyofalearner'sutterancesareveryformulaic.Asanaside,considerjustwhatpercentageofourownEnglishexpressionsareunique,andhowoftenwerelyonasetphrase;justbecauseitisdeliveredunselfconsciouslyandwithnaturalintonationdoesnotmakeitoriginal.Theaimisthatthelengthandcomplexityofexchanges,andconfidentdelivery,willgrowwiththestudent'slanguageability.Withtheemphasisoncommunication,thereisalsotheimplicationthatspokenexchangesshouldbeauthenticandmeaningful;detractorsclaimthattheartificialnatureofclassroom-based(i.e.teacher-createdinteractionsmakesCLTanoxymoron.Nevertheless,aproficientteacherwillprovideacontextsothatclassinteractionsarerealisticandmeaningfulbutwiththesupportneededtoassiststudentstogeneratethetargetlanguage.Weneedtoconsiderthatproducinglanguageisaskillandwhenwelearnaskillwepractiseinimprovisedsettings.Forexample,beforeanursegivesarealinjection,theyhavepuncturedmanyapieceoffruittohonetheirtechnique.AccuracyasWellasFluencyItmightalsobearguedthattheextentofsomeofthestructuresorfunctionsmayneverbeusedinreallife.Oneexampleisadjectiveorder;Ihavegivenstudentsanexercisewheretheyhavetoproduceaphrasewithastringofadjectives,suchas"astrong,orange,Norwegian,canvastent."Thisisveryunnatural,asmosttimesweonlycombinetwoorthreeadjectives.Theotherexampleisdirections—wehavestudentsfollowamapandnegotiateexhaustivedirectionswhichsuggestmaze-likecomplexity.Inreality,mostofusprobablyareonlyinvolvedinathree-phasesetofdirections.Infact,whatwearedoingwiththeseexercisesisexposingstudentstopatternswhichtheycanlateractivate.ThisfocusonaccuracyversusfluencyisoneoftheissuesnotoftenconsideredinadiscussionofCLT.Theteacherdecidestopayattentiontooneorotherendofthisband,dependingonthetypeoflesson,orthestageofaparticularlesson,andaccuracyistheirchoiceiftheywanttodealwithstudentsgettingthingsright,takeanopportunityforcorrection,orgaugethesuccessoftheirteaching,forexample.Freerspeakinginvolvesmorechoice,thereforemoreambiguity,andlessteacherintervention.WhileCLTimpliesthelessonsaremorestudent-centered,thisdoesnotmeantheyareun-structured.Theteacherdoeshaveaveryimportantroleintheprocess,andthatissettingupactivitiessothatcommunicationactuallyhappens.Thereisalotofpreparation;accuracypracticeisthebridgetoafluencyactivity.Byimplication,CLTinvolvesequippingstudentswithvocabulary,structuresandfunctions,aswellasstrategies,toenablethemtointeractsuccessfully.Thereferencetostrategiesintroducesthematterofgrammaticalversuscommunicativecompetence.Ifweviewthetwoasmutuallyexclusive,thenwearelikelytochampiononeovertheother,intermsofapproach,curriculumorwhateverelsedeterminesanddefinesourclassroomteaching.Infact,CanaleandSwain'smodelofcommunicativecompetence,referredtobyGuangweiHu,includesfoursub-categories,namelygrammatical,sociolinguisticdiscourseandstrategic.TheyconsidersomeonecompetentinEnglishshoulddemonstratebothrolesofgrammaranduse.PromotingLearningThisreturnsustotheconsiderationofwhoweareteaching,andwhy.AreourstudentsaimingtolearnoracquireEnglish?Dotheyneedtoknowlexicalitemsandlinguisticrulesasameansofpassinganexam,ordotheywanttobeabletointeractinEnglish?Forthoseinclinedtomaintainthedichotomybetweenlearningandacquisition,andwhoarguethatourprimaryfocusislearners,CLTstillhasrelevance.ItistimelytoreviewanearlydefinitionofCLT.AccordingtoRichardsandRodgers,inGuangweiHu,CLTisbasicallyaboutpromotinglearning.Thenagain,MarkLowesuggeststhatwefollowHalliday'sleadanddropthedistinctionbetweenlearningandacquisition,andrefertolanguagemasteryinstead.Afterall,ifthestudentsmasterthelanguage,theywillcertainlybeabletoperformbetterinexams,ifthatistheirgoal.Inaddition,thosewhodoseeapurposebeyondclassroom-relatedEnglishwillbebetterequippedforusingthelanguagesocially.MotivationOneoftheconstantdiscussionsinallmyteachertraininggroupswashowtomotivatestudents.Thissuggeststhatthefocusonpassingtheexamwasnotalwaysenough.Motivationrelatestoengagingstudentsbutalsoincludesconfidencebuilding.Ifthereisaclimateoftrustandsupportintheclassroom,thenstudentsaremorelikelytocontribute.Onewayofdevelopingthisistoallowpair-checkingofanswersbeforeopen-classcheckingoccurs.Anotherwayistoincludeanopportunityforstudentstodiscussatopicinsmallgroupsbeforethereisanyexpectationthattheyspeakinfrontofthewholeclass.EvelynDomansuggeststhat"Theneedforongoingnegotiationduringinteractionincreasesthelearners'overtparticipation..."Itisthisinvolvementweneedtoharnessandbuildon.Sometimestheparticipationishardlywhatwewoulddefineas"negotiation",butmerelyacontribution.Forafewstudents,justutteringawordoraphrasecanbeanachievement.Indeed,someoftheteachersinthetrainingsessionssaidthiswasthegoaltheysetfortheirmorereticentpupils.AndIhavehadstudentswho,afterwritingtheirfirstnoteore-mailinEnglish,expressedtheirprideatbeingabletodoso.Ifteachersconsideranactivitytobeirrelevantornotengagingenough,therearemanyothertaskswhichmaybemoreappropriate,suchassurveys,usingastimuluspictureandpromptquestions(Who...Where...When...What...),oraseriesofpictureswhichneedtobesequencedbeforeastoryisdiscussed.Inthisrespect,CLTaddressesanotherareawhichconstantlychallengesteachers,themixed-abilityclass.Whenthelessonprogressestoafreer-speakingactivity,studentscancontributeaccordingtotheirabilityandconfidence,althoughIacknowledgebothneedtobestretched.Sothereisachallengeforthemorecapablestudents,whilethosewithanaverageabilitystillfeeltheireffortisvalid.Thiscompareswiththelesscreativeopportunitiesofferedbysometextbooks,wherestudentsreadadialogue,perhapsdoingasubstitutionactivity,forexample.Abasicresponsibilityisconsideringandrespondingtotheneedsofourstudents,soifthecoursebookisinadequateweneedtoemploythefollowingsteps:select,adapt,rejectandsupplement.Moreover,becauseeachclassweteachhasitsowncharacteristicsandneeds,CLTwillvaryeachtimeweemployit.2、ThemoretheauthorreadsonCommunicativeLanguageTeaching,themorehethinksheshouldgiveitup.A、YB、NC、NG标准答案：B知识点解析：暂无解析3、Somemightarguethatasaresultofalimitedvocabularyandrestrictedrangeoffunctions,thereisnorealcommunication.A、YB、NC、NG标准答案：A知识点解析：暂无解析4、Theteacherwillprovideacontextandwhiletheclassispracticing,theteachershouldmonitor.A、YB、NC、NG标准答案：C知识点解析：暂无解析5、Sinceinreality,mostofusprobablyareonlyinvolvedinthreephase-setofdirections,itismeaninglessforthestudentstonegotiateexhaustivedirections.A、YB、NC、NG标准答案：A知识点解析：暂无解析6、Withthestudents’languageability,theismofthe______and______ofexchangesandconfidentdeliverywillgrow.标准答案：length;complexity知识点解析：暂无解析7、OneofthefactorsCLTinvolvesisstrategy,whichintroducesthematterof______versus______competence.标准答案：grammatical;communicative知识点解析：暂无解析8、Accordingtothepassage,Hallidayprefers______todistinctionbetweenlearningandacquisition.标准答案：languagemastery知识点解析：暂无解析9、Thediscussiononhowtomotivatestudentssuggeststhatthefocuson______wasnotalwaysenough.标准答案：passingtheexam知识点解析：暂无解析10、Besidesthecontributionactivity,CLTaddressesanotherarea,whichconstantlychallengesteachers,______.标准答案：characteristicsandneeds知识点解析：暂无解析11、Becauseeachclassweteachhasitsown______,CLTwillvaryeachtimeweemployit.标准答案：themixed-abilityclass知识点解析：暂无解析三、听力短对话(本题共8题，每题1.0分，共8分。)12、A、Tilemanwillarriveatthehotelonlyfourteenminuteslate.B、Themanhasaquartertogettothehotel.C、Themanwillcertainlymisshisbusiness.D、Thewomandoesnotthinkshewillbeabletodrivequickly.标准答案：D知识点解析：男士说：请赶快带我到北京饭店，不然我要误了那桩生意。女士说：我不知道，但我尽量吧。现在交通如此拥挤，至少还要四十分钟，。问题是：我们从对话中了解到什么?A、B项说得太具体，在交通拥挤的情况下是难以准确估计时间的，C项说得过于肯定；不合实情。所以只有D，女士认为不可能开得快。13、A、Tokeephercarpetclean.B、Toprotecthercarpet.C、Toavoidtrippingonthecarpet.D、Tokeeptheirfeetwarm.标准答案：B知识点解析：男士说：我们进你的公寓时你为什么要我们穿拖鞋。女士说：免得磨坏和划破地毯。这里难以理解的是女士的话：“Itsaveswearand．tearonthecarpet．”通常所记得save的意思是“省，救”，这是难处之一。难处之二是对wear和tear，意思的把握，wear除有“穿，戴”的意思外，还有“磨损”的意思；teat除有“撕”的意思外，还有“撕破的口子”的意思。因此选B最合题意。14、A、Hefailedonlyinphysics.B、Hewillnotpasstheexamifhedoesn’treviewhislessons.C、He’sintelligent.D、Cleverpeoplemaybevictimsoftheirowncleverness.标准答案：C知识点解析：女士说：阿伦各门功课成绩都是全班最高的，除了体育课之外。男的说，对他来说，这是很简单的事，我从没有见过他复习功课。从男士的话来看，他认为Allan很聪明，故选C。15、A、Shewasafraidoftheprofessor.B、Shedidn’tenterherhouse.C、Shedidn’tmakefullpreparationsforherlessons.D、Shelostherkey.标准答案：C知识点解析：男士说：一般来说，你很少显得很紧张，怎么刚才教授一点名你就那么紧张?女士说：我昨晚11点钟才进家门，所以没有足够的时间预习。从女士的话中可以感觉到她准备不充分。故选C最合适。16、A、Atthecallbox.B、Atthejewelrystore.C、Fromamachine.D、Fromthepurchaser.标准答案：C知识点解析：男士请求女士换一美元零钱以便去打电话。女土说：……你可以在珠宝店前的零钱机(changemachine)去换。因此，抓住了changemachine，就抓住了解题的关键，故选C。17、A、InJuly.B、InMarch.C、InSeptember.D、Inthewinter.标准答案：A知识点解析：女士说：三月份听说，著名的科幻小说作家艾萨克·阿斯莫夫的新书将于七月出版。男士说：我们可能要到九月份才能在图书馆见到。可见三月是听说的时间，九月是图书馆见到的时间，winter通常指十二月、一月和二月，这都不是问题问到的出版时间，只有七月(July)才是出版时间，故选A。18、A、Ithasbeeninherfamilyalongtime.B、Herboyfriendgaveittoher.C、Thefamilydoesn’tlikeit.D、Itisafamilydisgrace.标准答案：A知识点解析：从男士的问话中我们得知是一本rarelook(珍本书)，且男士以前从未见过。女士说：上周才拆封，这书是我家的传家宝。传家宝自然就可推断出在家里放了很长时间，故选A。其他选项均与会话内容不相符，应予排除。19、A、Hemadeithimself.B、Hehadacarpentermakeit.C、Heboughtit.alongtimeago.D、Hehadanoldonere-made.标准答案：B知识点解析：从男士的回答中可找到答案。他说：我干不了所有的木工活，我是请人做的(Ihaditmade)。因此我们选B，其他选项不符合会话内容。这里“Ihaditmade”听起来可能不容易反应过来。考试中常出现这类题，要听出话中之话就要格外细心。四、听力长对话（含3小题）(本题共3题，每题1.0分，共3分。)20、A、Asickfriend.B、Amathclass.C、Schoolpolicy.D、Theman’stest.标准答案：C知识点解析：一定要把握关键词，几个选项都有迷惑性，但是A，B和D只是在文中出现，只有C是正确答案，依据"privacyact""butthat’sthelaw”等关键词可以做出判断。21、A、Becauseitisagainstthelaw.B、BecausethemanisnotamemberofTerry’sfamily.C、Becausethewomancannotfindthetest.D、BecauseTerrywastoosicktotakethetest.标准答案：A知识点解析：先看题支，再有针对性的认真听。依据“buttheprivacyactwon’tpermitit”“butthat’sthelaw"可以做出选择。22、A、Gerard.B、Patrick.C、Raleigh.D、Kelly.标准答案：C知识点解析：先看题支，再有针对性的认真听。依据“mylastnameisRaleigh．R—A—L—E—I—C—H”可以做出判断。五、听力长对话（含4小题）(本题共4题，每题1.0分，共4分。)23、A、It’scrowdedwithpeople.B、It’sfullofcomputers.C、Lunchisbeingservedthere.D、Onlyfewpeopleinthere.标准答案：A知识点解析：由Thewomansaidshewaswaitingabout45minutesandtherewasacoupleupaheadofherwhohadwailedforanhourfinallygaveupandleft．可得知人很多。因此选A。24、A、Tryingtotelephonesomeone.B、Attendingaconcert.C、Waitinginline.D、Cancelingreservations.标准答案：C知识点解析：对话开头就谈他们在买concerttickets。因此A、B、D是不对的，只能选C，两个人都在排队买票。25、A、Beforebreakfast.B、Latemorning.C、Mid-afternoon.D、Lateevening.标准答案：C知识点解析：Thewomansaid，“Itcouldbethattherearen’tenoughpeoplesellingticketsthisafternoon．"Themansaid：“There’retwomorehoursbeforetheticketofficedoses．”因此猜测对话发生在mid-afternoon。正确答案是C。26、A、Talkingaboutifthewomanwaitedinline.B、Exchangingthetelephonenumbers.C、Sayinghellotoeachother.D、Talkingabouttheirchildren.标准答案：A知识点解析：从选项猜测，肯定会问这两个人在干什么。根据对话开头选A。六、听力短文（含3小题）(本题共6题，每题1.0分，共6分。)27、A、Money.B、Shipsandplanes.C、Florida.D、Trainsandcars.标准答案：B知识点解析：这道题主要是考查考生听音是否细心，只要注意到细节，是不难得出答案的。28、A、InthePacificOcean.B、ClosetoEurope.C、Nobodyknows.D、IntheAtlanticOcean.标准答案：D知识点解析：这道题的答案在文章一开始就已出现，经过训练，对文中开头一句特别注意的考生是不难得出答案的。即便漏听了第一句，考生也可以根据后面提到的地理位置推断出答案。29、A、Abombexplosion.B、Atrafficaccident.C、Murder.D、Massacres.标准答案：A知识点解析：这道题就是要求考生对新闻英语中所发生的事件要留意去听，而且文中多次提及“bomb”，从这也不难推断出答案。30、A、Atarailwaystation.B、Atabuscenter.C、Inthecountryside.D、Inacoastaltown.标准答案：B知识点解析：这道题要求考生注意细节，也就是事件发生的地点。31、A、1B、2C、3D、4标准答案：D知识点解析：我们一再要求考生对听音中听到的数字要保持敏感，这道题中只要考生记住了数字，就只是一个简单的1+3=4的问题。32、A、Thediscussion.B、TheEuropeanUnionteam.C、TheEuropeanUniondeputyforeignministers.D、TheUNinvestigation.标准答案：D知识点解析：这道题要求考生理解"turndown"一词的含义为“拒绝，摒斥”，只要了解这一点，答案是显然的。七、听力短文（含4小题）(本题共4题，每题1.0分，共4分。)33、A、Mice.B、Rats.C、Monkeys.D、A,BandC标准答案：D知识点解析：文中我们可以听到：Onewaythatscientistslearnaboutmanisbyanimals，suchasmice，ratsandmonkeys．由此可选D。34、A、Therelationshipbetweenmice,ratsandmonkeys.B、Therelationshipbetweendietandanimals.C、Therelationshipbetweendietandman.D、Therelationshipbetweendietandhealth.标准答案：D知识点解析：文中我们可以听到：Theyarestudyingtherelationshipbetweendietandhealth．由此我们可选D。35、A、Tilefirstgroup.B、Thesecondgroup.C、Thelastgroup.D、Allthethreegroups.标准答案：A知识点解析：根据实验的情况判断，即三组老鼠三年后表现出的健康程度判断，第一组老鼠是最健康的，故选A。36、A、Diethasnothingtodowithhealth.B、Theamountoffoodhassomethingtodowithhealth.C、Healthdependsondiettotally.D、Goodfoodhasnothingtodowithhealth.标准答案：B知识点解析：三组老鼠的实验表明：thehealthiestgroupistheonethatisonlyeatingonecupoffoodeachday．Thesecondgroupofmiceis“healthy”．Thelastgroupisnotveryactive．可见食量与健康是有关的，故选B。八、听力复合式听写(本题共11题，每题1.0分，共11分。)TheEnglish【B1】______settlementsinNorthAmericabeganinthe17thcenturywhenWesternEuropewas【B2】______greatchanges.DuringtheMiddle-Ages,Europewasunderthesingle【B3】______authorityoftheRomanCatholicChurch.Thepeasantsweretiedtothesoilandworkedinthefieldsfortheirlords.【B4】______andcraftsmenwere【B5】______bythesocialdisorders.ArtandlearningwerecontrolledbytheChurch.Bythe16thcentury,somenewandpowerfulsocialforcesbeganto【B6】______whichledtotheawakeningofEuropeandthediscoveryofAmerica.Thefirstnewforcewasthedevelopmentofcapitalism.Thegrowthofcapitalismproducedtwonewclassesthebourgeoisclassandtheworkingclass.Withthefastdevelopmentof【B7】______andtrade,thebourgeoisiebecame【B8】______.powerfulinpoliticsaswellasineconomy.Theywantedtosharepowerwithfeudallordsand【B9】___________________.TheEnglishRevolutionwastheresultofthisgrowthofcapitalism.【B10】_______________________.TheGod-centeredworldwaschallengedbythegreatprogressinnaturalandsocialscience.ManychallengedtheauthorityoftheBibleandwerewillingtoobserve,experimentandtesttruthsforthemselves.Thisattitudepushedthedevelopmentoftechnology.【B11】__________________________________.37、【B1】标准答案：permanent知识点解析：暂无解析38、【B2】标准答案：undergoing知识点解析：暂无解析39、【B3】标准答案：spiritual知识点解析：暂无解析40、【B4】标准答案：Merchants知识点解析：暂无解析41、【B5】标准答案：handicapped知识点解析：暂无解析42、【B6】标准答案：emerge知识点解析：暂无解析43、【B7】标准答案：commerce知识点解析：暂无解析44、【B8】标准答案：increasingly知识点解析：暂无解析45、【B9】标准答案：insomecountriessuchasEnglandtheywantedtohavemorepowerfromthekingsothattheycouldhavefreedevelopment.知识点解析：暂无解析46、【B10】标准答案：ThesecondmajorforcethatbroughtaboutthemodemdevelopmentofEuropewastheRenaissance,whichwasmarkedbyachangingoutlookonlife.知识点解析：暂无解析47、【B11】标准答案：ThethirdinfluenceforcewastheReligiousReformation,areligiousreformmovementthatstartedfromGermany.知识点解析：暂无解析九、阅读（常规阅读理解）(本题共10题，每题1.0分，共10分。)Scientistshaveknownsince1952thatDNAisthebasicstuffofheredity.They'veknownitschemicalstructuresince1953.TheyknowthathumanDNAactslikeabiologicalcomputerprogramsome3billionbitslongthatspellsouttheinstructionsformakingproteins,thebasicbuildingblocksoflife.Buteverythingthegeneticengineershaveaccomplishedduringthepasthalf-centuryisjustapreambletotheworkthatCollinsandAndersonandlegionsofcolleaguesaredoingnow.CollinsleadstheHumanGenomeProject,a15-yearefforttodrawthefirstdetailedmapofeverynookandcrannyofgeneinhumanDNA.Anderson,whopioneeredthefirstsuccessfulhumangene-therapyoperations,isleadingthecampaigntoputinformationaboutDNAtouseasquicklyaspossibleinthetreatmentandpreventionofhumandiseases.Whattheyandotherresearchersareplottingisnothinglessthanabiomedicalrevolution.LikeSiliconValleypiratesreverse-engineeringacomputerchiptostealacompetitor'ssecrets,geneticengineersaredecodinglife'smolecularsecretsandtryingtousethatknowledgetoreversethenaturalcourseofdisease.DNAintheirhandshasbecomebothablueprintandadrag,apharmacologicalsubstanceofextraordinarypotencythatcantreatnotjustsymptomsorthediseasesthatcausethembutalsotheimperfectionsinDNAthatmakepeoplesusceptibletoadisease.Andthat'sjustthebeginning.Forallthefeveredworkbeingdone,however,scienceisstillfarawayfromtheBraveNewWorldvisionofengineeringaperfecthuman—orevenaperfecttomato.Muchmoreresearchisneededbeforegenetherapybecomescommonplace,andmanydiseaseswilltakedecadestoconquer,iftheycanbeconqueredatall.Intheshortrun,themostpracticalwaytousethenewtechnologywillbeingeneticscreening.DoctorswillbeabletodetectallsortsofflawsinDNAlongbeforetheycanbefixed.Insomecasestheknowledgemayleadtotreatmentsthatdelaytheonsetofthediseaseorsoftenitseffects.Someonewithageneticpredispositiontoheartdisease,forexample,couldfollowalow-fatdiet.Andifscientistsdeterminethatvitalproteinismissingbecausethegenethatwassupposedtomakeitdefective,theymightbeabletogivethepatientanartificialversionoftheprotein.Butinotherinstances,almostnothingcanbedonetostoptheravagesbroughtonbygeneticmutations.48、WhatachievementshavebeengotbyCollinsandAndersonandlegionsofcolleagues?A、TheyknowthathumanDNAactslikeabiologicalcomputerprogram.B、Theyhavefoundthebasicbuildingblocksoflife.C、Theyhaveaccomplishedsomegeneticdiscoveryduringthepasthalf-century.D、TheyaremakingabreakthroughinDNA.标准答案：D知识点解析：“正在DNA方面取得突破。”可从第2段第1句推论出：过去50年中取得的一切成果与他们所从事的研究相比只不过是一个序幕，暗示他们将取得重大突破。49、CollinsandAndersonarecitedinthetexttoindicateallthefollowingEXCEPTthat______.A、time-consumingeffortisneededtoaccomplishthedetailedmapofgeneinhumanDNAB、humangene-therapyoperationsmaybeappliedtothepatientsC、gene-therapynowisalreadygenerallyusedtothetreatmentandpreventionofhumandiseasesD、informationaboutDNAmaybeusedinthetreatmentanpreventionofhumandiseases标准答案：C知识点解析：“基因疗法已经普遍用于治疗和预防人类疾病”，从全文我们看不到这样的事实。因此应当排除。其余选项都能在文章中找到依据。50、Whatdoestheword"pirates"inthethirdparagraphmean?A、Onewhorobsatseaorplundersthelandfromthesea.B、Onewhomakesuseoforreproducestheworkofanotherwithoutauthorization.C、Totake(something)bypiracy.D、Tomakeuseoforreproduce(another’swork)withoutauthorization.标准答案：B知识点解析：“剽窃者：非法翻印者”。此处的pirates为名词，原文的likeSiliconValleypiratesreverse-engineeringacompetitor’schiptostealacompetitor’ssecrets，其结构可简化为：likesb．doingsth./todosth。51、Whatconclusioncanwegetfromthepassage?A、Engineeringaperfecthumanisnotfeasibleforthetimebeing.B、It’simpossibleforscientiststoengineeraperfecttomato.C、Manydiseaseswillneverbeconqueredbyhumanbeings.D、DoctorswillbeabletocureallsortsofflawsinDNAinthelongrun.标准答案：A知识点解析：“目前用基因工程来制造理想的人并不现实”。可从原文倒数第2段得出这样的结论：ScienceisstillfarawayfromtheBraveNewWorldvisionofengineeringaperfecthuman．52、Whichofthefollowisthemostsuitabletothetitleforthispassage?A、DNAandHeredity.B、TheGeneticRevolution.C、ABiomedicalRevolution.D、HowtoApplyGeneticTechnology.标准答案：B知识点解析：“基因革命”，我们通过全文可以得出这一标题。选项A不全面，只归纳了Collins和Anderson的研究：C、D不切题。TheSecurityCouncilisthemostpowerfulbodyintheUN.Itisresponsibleformaintaininginternationalpeace,andforrestoringpeacewhenconflictsarise.ItsdecisionsarebindingonallUNmembers.TheSecurityCouncilhasthepowertodefinewhatathreattosecurityis,todeterminehowtheUNshouldrespond,andtoenforceitsdecisionsbyorderingUNmemberstotakecertainactions.TheCouncilconvenesanytimethereisathreattopeace.ArepresentativefromeachmembercountrywhositsontheCouncilmustbeavailableatalltimessothattheCouncilcanmeetatamoment'snotice.TheSecurityCouncilalsofrequentlymeetsattherequestofaUNmember—oftenanationwithagrievanceaboutanothernation'sactions.TheSecurityCouncilhas15members;fiveofwhichholdpermanentseats.TheAssemblyelectstheothertenmembersfortwo-yearterms.Thefivepermanentmembers—theUnitedStates,Britain,France,Russia(formerlytheSovietUnion),andChina—havethemostpower.ThesenationswerethewinningpowersattheendofWorldWarⅡ,andtheystillrepresentthebulkoftheworld'smilitarymight.DecisionsoftheCouncilrequireninevotes.Butanyoneofthepermanentmemberscanvetoanimportantdecision.Thisauthorityisknownasthevetorightofthegreatpowers.Asaresult,theCounciliseffectiveonlywhenitspermanentmemberscanreachaconsensus.TheCouncilhasavarietyofwaysitcantrytoresolveconflictsamongcountries.UsuallytheCouncils'firststepistoencouragethecountriestosettletheirdisagreementswithoutviolence.TheCouncilcanmediateadisputeorrecommendguidelinesforasettlement.Itcansendpeacekeepingtroopsintoadistressedarea.Ifwarbreaksout,theCouncilcancallforaceasefire.Itcanenforceitsdecisionsbyimposingeconomicsanctionsonacountry,orthroughjointmilitaryaction.53、WhichisTRUEinthefollowingstatementsaccordingtothepassage?A、TheSecurityCouncilconvenesannually.B、AllUNmembersshouldabidebythedecisionsadoptedbytheSecurityCouncil.C、Althoughonememberseriouslycomplainsaboutanothermember’saction,theSecurityCouncilwillnotconvenesatitsrequest.D、ThefivepermanentmembersoftheSecurityCouncilholdlessthanonehalfarmedforcesintheworld.标准答案：B知识点解析：本题考察细节理解。参见文章第1段第3句，表明所有成员国都必须遵守安理会做出的决议，所以选项B正确。选项A不对，因为第2段提到“只要和平受到威胁，安理会就会召开会议”。选项D不对，因为5个常任理事国代表了世界上大部分的军事力量。54、WhyistheSecurityCouncileffectiveonlywhenitspermanentmemberscanreachaconsensus?A、Becauseeverypermanentmemberhasthevetorightofgreatpowers.B、BecauseallthepermanentmemberswonintheWorldWarⅡ.C、BecausetheothermembersoftheSecurityCouncilareinthechargeofthepermanentmembers.D、Becauseofsomeotherreasonsnotmentionedinthispassage.标准答案：A知识点解析：细节题。参见第4段第2句：任何一个常任理事国都可以对某种重要决议投否决票。55、OnemotionisadoptedbytheSecurityCouncilonlyif______.A、1of15membersacceptthismotionB、allthemembershavenoobjectiontothemotionC、9membersagreeonitandallthepermanentmembersapproveofitD、allthepermanentmemberspassit标准答案：C知识点解析：推理题。根据第4段描述：只有当赞成票在9票以上，并且常任理事国没有投否决票时，安理会的决议才能生效。56、ThepassageintroducesallthethingsabouttheSecurityCouncilEXCEPT______.A、missionB、membershipC、rightsD、history标准答案：D知识点解析：推理题。文章就安理会的使命、权力、会员国这几个方面进行了介绍，唯独没有提到安理会的历史。57、Thelastparagraphofthispassagemaybeconcludedwiththestatement