大学英语六级完型填空真题2017年-2018

./大学英语六级-选词填空专项训练CET6-cloze-2016-6-1Cloze:Questions26to35arebasedonthefollowingpassage.A.avoidingB.benefitsC.highlightD.illustratesE.impressionF.improvesG.inquiringH.perfectlyI.positiveJ.prevailK.primarilyL.promptM.specificationsN.strappingO.typicalLet'ssayyouloveroller-skating.Justthethoughtof__26__onyourroller-skatesbringsasmiletoyourface.Youalsoknowthatroller-skatingisexcellentexercise.Youhavea__27__attitudetowardit.Thisdescriptionofroller-skating__28__thethreecomponentsofanattitude:affect,cognition,andbehavior.Youlovetheactivity;it'sgreatfun.Thesefeelings__29__theaffectiveoremotionalcomponent;theyareanimportantingredientinattitudes.Theknowledgewehaveabouttheobjectconstitutesthecognitivecomponentofanattitude.Youunderstandthehealth__30__thattheactivitycanbring.Finally,attitudeshaveabehavioralcomponent.Ourattitudes__31__ustogooutsidetoenjoyroller-skating.Now,wedon'twanttoleaveyouwiththe__32__thatthesethreecomponentsalwaysworktogether__33__.Theydon't;sometimestheyclash.Forexample,let'ssayyoulovepizza<affectivecomponent>;however,youhavehighcholesterolandunderstand<knowledgecomponent>thateatingpizzamaybebadforyourhealth.Whichbehaviorwillyourattituderesultin,eatingpizzaor__34__it?Theanswerdependsonwhichcomponenthappenstobestronger.Ifyouarewalkingpastapizzarestaurantatlunchtime,youremotionsandfeelingsprobablywillbestrongerthanyourknowledgethatpizzamaynotbethebestfoodforyourhealth.Inthatinstance,youhavepizzaforlunch.Ifyouareathometryingtodecidewheretogofordinner,however,theknowledgecomponentmay__35__,andyoudecidetogowhereyoucaneatahealthiermeal.KEY:26[N]空格前的of表明此处应填入动名词,与介词on搭配。空格后的roller-skates指"溜冰鞋",词库的动名词中,strapping可与on搭配,后接表示鞋子的宾语,意为"用带子系上<鞋子",符合此处语境。27[I]此处需填入修饰attitude的词,由a可知需填入的单词是辅音字母开头的。上文提到"你"喜欢溜旱冰,穿上鞋子就微笑。"你"同样知道溜旱冰是很好的运动,因此这种态度是积极正面的,故填入positive"积极的"。28[D]此处应填入谓语动词,由主语description可知是第三人称单数形式。文章开头的Let'ssay...表明第一段对溜旱冰的描绘是举例,因此此处符合语义逻辑的是illustrates"说明,阐明",该处句子的意思是"对溜旱冰的描述说明了态度有三个组成部分"。29[C]此处应填入谓语动词,由主语feelings可知是动词原形。本句要说明态度的第一个部分affect"情感",主语thesefeelings指的是对溜旱冰这项活动的喜爱之情,highlight"强调,突出"与宾语theaffectiveoremotionalcomponent"情感或感情部分"搭配合理。而prevail"流行,盛行；获胜"是不及物动词,prompt"推动；提示"在语义上也不合逻辑。30[B]空格在名词health之后,可能填入副词或名词。因为空格后的thattheactivitycanbring"这项活动可以带来的"是定语从句,故应填入名词,充当从句先行词。第一段提到"你"知道溜旱冰是极好的运动<excellentexercise>,因此本句填入语义相关的benefits"好处"。31[L]此处应填入谓语动词,构成～sb.todosth.结构,主语attitudes表明该词是原形。符合要求的是prompt"促使",句子意思是"我们的态度促使我们去外面享受溜旱冰的乐趣"。32[E]空格前的the表明此处应填入名词,空格后that引导的是同位语从句,意为"这三个组成部分总是协调统一的"。impression"印象"符合上下文语义,指"我们不想给你留下这种印象",呼应后文"它们并不是"。33[H]空格在worktogether之后,故应填入副词。perfectly"完美地"符合语境,指这三个部分配合完美。上下文没有表示动作先后的描述,故primarily"主要地,首先"不对。34[A]由or可知此处应填入与eating并列的动名词,意思上表示相反的情况,因此avoiding"避免"正确,指"吃比萨还是不吃"。35[J]空格前的may表明此处应填入动词原形,且是不及物动词。上一句提到情感部分可能更强的情形〔probablywillbestronger,本句指认知部分更强的情况,故填入与bestronger近义的prevail"获胜"。CET6-cloze-2016-6-2Questions26to35arebasedonthefollowingpassage.Theroboticsrevolutionissettobringhumansfacetofacewithanoldfear—man-madecreationsassmartandcapableaswearebutwithoutamoralcompass.Asrobotstakeonevermorecomplexroles,thequestionnaturally26__________:Whowillberesponsiblewhentheydosomethingwrong?Manufacturers?Users?Softwarewriters?Theanswerdependsontherobot.Robotsalreadysaveustime,moneyandenergy.Inthefuture,theywillimproveourhealthcare,socialwelfareandstandardofliving.The27__________ofcomputationalpowerandengineeringadvanceswill28__________enablelower-costin-homecareforthedisabled,29__________useofdriverlesscarsthatmayreducedrunk-anddistracted-drivingaccidentsandcountlesshomeandservice-industryusesforrobots,fromstreetcleaningtofoodpreparation.Butthereare30__________tobeproblems.Robotcarswillcrash.Adrone<遥控飞行器>operatorwill31__________someone'sprivacy.Aroboticlawnmowerwillrunoveraneighbor'scat.Juriessympathetictothe32__________ofmachineswillpunishentrepreneurswithcompany-crushing33__________anddamages.Whatshouldgovernmentsdotoprotectpeoplewhile34__________spaceforinnovation?Big,complicatedsystemsonwhichmuchpublicsafetydepends,likedriverlesscars,shouldbebuilt,35__________andsoldbymanufacturerswhotakeresponsibilityforensuringsafetyandareliableforaccidents.Governmentsshouldsetsafetyrequirementsandthenletinsurerspricetheriskoftherobotsbasedonthemanufacturer'sdrivingrecord,notthepassenger's.A.arisesB.ascendsC.boundD.combinationE.definiteF.eventuallyG.interfereH.invadeI.manifestingJ.penaltiesK.preservingL.programmedM.proximatelyN.victimsO.widespread阅读参考答案26[A]空格位于句末,前面是副词naturally和主语thequestion,因此应填入不及物动词,充当句子谓语。由As从句中takeon所用的一般现在时,可知填入的动词应是第三人称单数。上文提到人们惧怕机器人缺乏道德界限<withoutamoralcompass>,空格后是具体的问题,因此本句应表示问题自然"出现,引起",故arises符合要求。另一个第三人称单数动词是ascends"上升；攀登",与question搭配不当。27[D]由空格前的the和空格后的of可知此处应填入名词。介词of后是两个并列的名词结构：computationalpower"计算能力"和engineeringadvances"工程学发展"。由此可知名词中combination"结合体"符合语义逻辑。28[F]空格位于助动词will和谓语动词enable之间,故应填入副词。本句表示某物能够降低残疾人的家庭护理费用。副词中符合语义逻辑的是eventually"终于,最终"。29[O]空格在名词use之前,故应填入形空词或分词。本句的结构是...useofdriverlesscarsandcountless...usesforrobots,因此填入的词与countless"无数的"语义相关,应指运用得"多"或"广",故填入widespread"广泛的,普遍的",指机器人最终将普遍运用在无人驾驶汽车、家用和服务业等方面。30[C]空格处应填入分词或形容词,构成be...to的搭配。上文提到机器人最终会普遍运用,本句用but转折,提到problems"问题",接着下文列举了具体的问题,因此空格处填入bound"肯定的,一定的",指"问题肯定会有"。31[H]空格前的will表明此处应填入及物动词原形,与后面的名词privacy"隐私"构成搭配。invade"入侵,侵犯"符合要求,指无人机可能会"侵犯"别人的隐私。32[N]空格在the和of之间,故应填入名词。本句指陪审团对机器的……表示同情,会让企业家受到惩罚。上文说机器人会发生碰撞,无人机侵犯隐私,机器人割草机轧压邻居家的猫。这些都是机器的"受害者",故victims"受害人,牺牲品"符合语义逻辑。33[J]空格前的company-crushing是复合形容词,表示"令公司压力大的,可摧毁公司的",故应填入与damages"赔偿金"并列的名词,形式上也是复数,作punish的间接宾语。故penalties"罚金"符合要求。34[K]空格前的while是连词,故应填入动名词形式。由宾语space"空间",可知搭配恰当的是preserving"保护,保留",句子意为：政府在给创新"保留"空间时,应该做些什么来保护人们呢？35[L]空格与过去分词built和sold并列,故也应是表被动的过去分词形式。本句指大型复杂系统<systems>应该由厂商创建……并销售。符合语义逻辑、并与systems搭配的是programmed"规划"。CET6-cloze-2016-6-3Questions26to35arebasedonthefollowingpassage.Pursuingacareerisanessentialpartofadolescentdevelopment."Theadolescentbecomesanadultwhenhe26__________arealjob."TocognitiveresearcherslikePiaget,adulthoodmeantthebeginningofan27__________.Piagetarguedthatonceadolescentsentertheworldofwork,theirnewlyacquiredabilitytoformhypothesesallowsthemtocreaterepresentationsthataretooideal.The28__________ofsuchideals,withoutthetemperingoftherealityofajoborprofession,rapidlyleadsadolescentstobecome29__________ofthenon-idealisticworldandtopressforreforminacharacteristicallyadolescentway.Piagetsaid:"Trueadaptationtosocietycomes30__________whentheadolescentreformerattemptstoputhisideastowork."Ofcourse,youthfulidealismisoftencourageous,andnoonelikestogiveupdreams.Perhaps,taken31__________outofcontext,Piaget'sstatementseemsharsh.Whathewas32__________,however,isthewayrealitycanmodifyidealisticviews.Somepeoplerefertosuchmodificationasmaturity.Piagetarguedthatattainingandacceptingavocationisoneofthebestwaystomodifyidealizedviewsandtomature.Ascareersandvocationsbecomelessavailableduringtimesof33__________,adolescentsmaybeespeciallyhardhit.Suchdifficulteconomictimesmayleavemanyadolescents34__________abouttheirrolesinsociety.Forthisreason,communityinterventionsandgovernmentjobprogramsthatoffersummerandvacationworkarenotonlyeconomically__35__butalsohelptostimulatetheadolescent'ssenseofworth.A.automaticallyB.beneficialC.capturingD.confusedE.emphasizingF.entranceG.excitedH.existenceI.incidentallyJ.intolerantK.occupationL.promisesM.recessionN.slightlyO.undertakes阅读参考答案26[O]空格所在句子为when引导的时间状语从句,从句中缺少谓语动词,且根据主句中谓语动词becomes可进一步确定此处应填入动词的第三人称单数。宾语是arealjob,undertakes"承担;从事"符合语境,句子表示从事一份真正的工作时,他〔她才真正步人成年人的行列。而promises"承诺"不符合语义逻辑。27[K]空格前面的不定冠词an决定了此处应填入一个首发音是元音的名词。上句提到,青少年真正步入成年人行列是当他从事一份真正的工作时,也就是说成年意味着一份职业的开始,故填入occupation"职业"合适。28[H]空格前面的the和后面的of决定了此处应填入名词,和后面的ofsuchideals搭配。existence"存在"符合语义逻辑,表示这些理想的存在。29[J]空格前面是动词become,可判断此处应填入形容词或名词。前面提到青少年会产生一些过于理想化的想法,那么对于这个不那么理想的世界应该是"接受不了"或"难以忍受的",故填入intolerant"无法忍受的"。30[A]空格位于动词comes之后,when引导的状语从句之前,所在句子不缺少主要成分,可判断此处需要填入副词。从逻辑上推断,当青少年改革者试图将他的想法付诸工作实践时,对社会的真正适应就是自然而然的了,故automatically"自动地；自然而然地"符合语境。31[N]空格所在部分为一个固定短语take...outofcontext,意为"断章取义,脱离上下文",其中take的宾语应是句子的主语Piaget'sstatement,所以该过去分词短语在句子中作状语,且不缺少主要成分,由此可判断此处需要填入一个副词。本句要说明在什么情况下,皮亚杰的论断或许太过苛刻,填入slightly"轻微地"合适,意为"稍加孤立地看"。32[E]空格所在部分为what引导的主语从句,从句缺少谓语动词,由前面的助动词was可判断此处应填入动词的现在分词形式,本句的表语是theway"那种方式"。emphasizing"强调"符合语境,表示他意在强调的是那种方式。33[M]空格前面的of决定了此处应填入名词或动名词形式。就业岗位越来越少,所以应该是处于萧条时期,且根据下文difficulteconomictimes也可判断出recession"衰退"符合语义逻辑。34[D]空格所在部分为"leavesb.+宾语补足语"结构,空格填入的单词作leave的宾补,且能与后面的about搭配,可判断此处应填入形容词或动词的分词形式。处于这样的经济困难时期,很多青少年或许对他们在社会中扮演的角色应该是"迷茫"或"困惑"的,词库中符合这一语义的是confused"困惑的；混乱的"。35[B]空格所在句子缺少谓语,由前面的助动词are可判断此处应填入形容词或动词的分词形式。根据主语communityinterventionsandgovernmentjobprograms和空格前的economically,可知填入beneficial"有益的",表示社区干预和政府提供的就业计划不仅使青少年在经济上受益。CET6-cloze-2016-12-1Questions26to35arebasedonthefollowingpassage.Itisimportantthatscientistsbeseenasnormalpeopleaskingandansweringimportantquestions.Good,soundsciencedependson26,experimentsandreasonedmethodologies.Itrequiresawillingnesstoasknewquestionsandtrynewapproaches.Itrequiresonetotakerisksandexperiencefailures.Butgoodsciencealsorequires27understanding,clearexplanationandconcisepresentation.Ourcountryneedsmorescientistswhoarewillingtostepoutinthepublic28andoffertheiropinionsonimportantmatters.Weneedmorescientistswhocanexplainwhattheyaredoinginlanguagethatis29andunderstandabletothepublic.Thoseofuswhoarenotscientistsshouldalsobepreparedtosupportpublicengagementbyscientists,andto30scientificknowledgeintoourpubliccommunications.Toomanypeopleinthiscountry,includingsomeamongourelectedleadership,stilldonotunderstandhowscienceworksorwhyrobust,long-rangeinvestmentsinresearchvitallymatter.Inthe1960s,theUnitedStates31nearly17%ofdiscretionary<可酌情支配的>spendingtoresearchanddevelopment,32decadesofeconomicgrowth.By2008,thefigurehadfallenintothesingle33Thisoccursatatimewhenothernationshavemadesignificantgainsintheirownresearchcapabilities.AttheUniversityofCalifornia<UC>,we34ourselvesnotonlyonthequalityofourresearch,butalsoonitscontributiontoimprovingourworld.To35thedevelopmentofsciencefromthelabbenchtothemarketplace,UCisinvestingourownmoneyinourowngoodideas.A.Arena B.contextualC.Convincing D.devotedE.Digits F.hastenG.Hypotheses H.impairingI.Incorporate J.indefiniteK.Indulge L.inertiaM.Pride N.reapingO.Warrant名词：A.arena舞台,竞技场；E.digits数字；G.hypotheses假设；L.inertia惯性,惰性；O.warrant授权,授权令动词：D.devoted献身于,把……专用于；F.hasten加速；H.impairing损害；I.incorporate合并,使并入；K.indulge放纵,使沉溺于；M.pride以……为豪；N.reaping收获形容词：B.contextual上下文的,情境的,前后关联的；C.convincing有说服力的,使人信服的；J.indefinite不确定的26．G.hypotheses。27．B.contextual。28．A.arena。空格位于形容词之后,据此判断可填入名词,并与public连用构成固定搭配。故推测句意为"我们的国家需要更多科学家登上公共舞台"。因此填入A.arena"舞台,竞技场"。在备选项中,digitS意为"数字",inertia意为"惯性,惰性",warrant意为"授权,授权令",均不符合文意,且不能与public搭配,故排除。29．C.convincing。空格位于以that引导的定语从句中,此定语从句使用了主系表结构,据此判断应填入形容词,且此形容词可以用来修饰language"语言"。根据句意"他们能够用令人信服并且让人们听得懂的语言,对公众解释自己的所作所为"可知,答案为C.convincing"有说服力的,使人信服的"。在备选项中,indefinite意为"不确定的",与文意相反,故排除。30．I.incorporate。31．D.devoted。32．N.reaping。空格位于句子的主体结构之外,描述主句动词所引发的结果,属于结果状语成分,据此判断可填人现在分词。根据句意"美国将大约17％的可支配收入专门用于科学研究,________了数十年的经济增长"可知,答案为N.reaping"收获"。在备选项中,impairing意为"损害",不符合文意,故排除。33．E.digits。34．M.pride。空格位于句子的谓语动词处,且此动词应能够与on构成固定搭配,备选项中只有M.pride"以……为豪",符合语法要求。所在旬意为"我们不仅为我们的科研质量自豪,也为我们的科研为改进世界所做出的贡献自豪"。在备选项中,hasten意为"加速",indulge意为"放纵,使沉溺于",均与文意不符,故排除。35．F.hasten。CET6-cloze-2016-12-2CET6-cloze-2016-12-3CET6-cloze-2017-6-1Let’sallstopjudgingpeoplewhotalktothemselves.Newresearchsaysthatthosewhocan’tseemtokeeptheirinnermonologues<独白>inareactuallymorelikelytostayontask,remain__26__betterandshowimprovedperceptioncapabilities.Notbad,really,forsomeextramuttering.AccordingtoaseriesofexperimentspublishedintheQuarterlyJournalofExperimentalPsychologybyprofessorsGaryLupyanandDanielSwignley,theactofusingverbalcluesto__27__mentalpictureshelpspeoplefunctionquicker.Inoneexperiment,theyshowedpicturesofvariousobjectstotwenty__28__andaskedthemtofindjustoneofthose,abanana.Halfwere__29__torepeatoutloudwhattheywerelookingforandtheotherhalfkepttheirlips__30__.Thosewhotalkedtothemselvesfoundthebananaslightlyfasterthanthosewhodidn’t,theresearcherssay.Inotherexperiments,LupyanandSwignleyfoundthat__31__thenameofacommonproductwhenonthehuntforithelpedquickensomeone’space,buttalkingaboutuncommonitemsshowednoadvantageandslowedyoudown.Commonresearchhaslongheldthattalkingthemselvesthroughataskhelpschildrenlearn,althoughdoingsowhenyou’ve__32__maturedisnotagreatsignof__33__.Thetwoprofessorshopetorefutethatidea,__34__thatjustaswhenkidswalkthemselvesthroughaprocess,adultscanbenefitfromusinglanguagenotjusttocommunicate,butalsotohelp"augmentthinking".Ofcourse,youarestillencouragedtokeepthetalkingatlibrarytonesand,whateveryoudo,keeptheinformationyousharesimple,likeagrocerylist.Atany__35__,there’sstillsuchathingastoomuchinformation.26.[解析]F。空格前的remain为系动词,因此空格处需要填入一个形容词；根据前面的句意"……更有可能坚持做一件事",可知focused最为符合,表示"保持全神贯注",因此本题选F。27.[解析]L。根据空格前的to可判断空格处应填入动词原形,根据句意,"使用口头提示来记忆图像",可知选项L符合。28.[解析]0。空格前是量词twenty,因此空格处需填入一个名词复数；再由前边的"Inoneexperiment"可知这是一个实验,所以这里选择volunteers〔志愿者最为合适,故本题选0。29.[解析]H。空格前后分别为be动词were和介词to,因此空格处需要填入一个动词的被动语态；根据句意,"一半人被_____要大声地重复他们要找的东西,"可知instructed〔通知,指导最为合适,因此本题答案选H。30.[解析]J。根据句子结构可判断空格处需要填入一个形容词。再由theotherhalf对应的是前边的Half,可知这里的情况和前边的不同,前边说repeatoutloud〔大声地重复,后边自然就是要表达"不说话"的意思,keepone’slipssealed即"闭上嘴巴、不说话"的意思,故本题选J。31.[解析]M。空格前的that引导的是宾语从句,空格与后面的名词词组thenameofacommonproduct共同充当宾语从句的主语,因此空格处应填入动词的-ing形式,根据句意可判断uttering更为合适,故本题选M。32.[解析]A。空格所在句是一个现在完成时态,空格前后组成谓语动词havematured,因此空格处实际上并不缺成分,只可能填入一个副词来修饰动词matured,根据单词意思,这里应选apparently。33.[解析]C。根据空格前边的agreatsignof可知,空格处缺少一个名词；再根据句意,"当你足够成熟时,自言自语并不能显示出你的_____",可知这里填入brilliance更为合适。故本题选C。34.[解析]D。空格前边是一句完整的话,空格后是that从句,由此判断空格处填入动词的-ing形式,作为前边句子的伴随状语,并引导后面的宾语从句；分析选项,动词的-ing形式只剩下claiming这一个词,故本题选D。35.[解析]N。空格处需要填入一个名词,与前边的Atany构成介词词组；结合整篇文章的大意,此处填入volume最为合适,故本题选N。2017年6月六级考试真题<第2套>CET6-cloze-2017-6-2AfterbecomingpresidentofPurdueUniversityin2013,MitchDanielsaskedthefacultytoprovethattheirstudentshaveactuallyachievedoneofhighereducation’smostimportantgoals:criticalthinkingskills.Twoyearsbefore,anationwidestudyofcollegegraduateshadshownthatmorethanathirdhadmadeno26gainsinsuchmentalabilitiesduringtheirschoolyears.Mr.Danielsneededto27thehighcostofattendingPurduetoitsstudentsandtheirfamilies.Afterall,thepercentageofAmericanswhosayacollegedegreeis"veryimportant"hasfallen28inthelast5-6years.Purduenowhasapilottesttoassessstudents’criticalthinkingskills.YetlikemanycollegeteachersaroundtheU.S.,thefacultyremain29thattheirworkaseducatorscanbemeasuredbya"learning30"suchasagraduate’sabilitytoinvestigateandreason.However,theprofessorsneednotworrysomuch.Theresultsofarecentexperimentshowedthatprofessorscanuse31metricstomeasurehowwellstudentsdointhreekeyareas:criticalthinking,writtencommunication,andquantitativeliteracy.Despitethesuccessoftheexperiment,theactualresultsareworrisome,andmostly32earlierstudies.Theorganizersoftheexperimentconcludedthatfarfewerstudentswereachievingathighlevelsoncriticalthinkingthantheyweredoingforwrittencommunicationorquantitativeliteracy.Andthatconclusionisbasedonlyonstudentsnearinggraduation.Americanuniversities,despitetheirglobal33forexcellenceinteaching,haveonlybeguntodemonstratewhattheycanproduceinreal-worldlearning.Knowledge-baseddegreesarestillimportant,butemployersare34advancedthinkingskillsfromcollegegraduates.Iftheintellectualworthofacollegedegreecanbe35measured,morepeoplewillseekhighereducationandcomeoutbetterthinkers.A>accuratelyB>confirmC>demandingD>doubtfulE>drasticallyF>justifyG>monopolizedH>outcomeI>predominanceJ>presumingK>reputationL>significantM>signifyN>simultaneouslyO>standardized26.no,空格后是名词gainssignificanthavemadenosignificantgains。。27.[解析]F。空格前是不定式to,空格后是名词词组thehighcost,所以此空应该填入一个动词原形。根据句意,动词原形中只有justify符合句意。故选F。28.[解析]E。空格前是hasfallen,空格后是时间状语inthelast5-6years,本句是现在完成时且不缺句子成分,所以此空应该填入一个副词。根据句意,选项中只有drastically符合句意。故选E。29.[解析]D。空格前是动词remain,空格后是that引导的表语从句,所以此空应该填入一个形容词。根据句意,选项中只有doubtful符合句意。故选D。.Houtcome符合句意。故选H。31.[解析]O。空格前是动词use,空格后是名词metrics,所以此空应该填入一个形容词或名词。根据句意,选项中只有standardized符合句意。故选O。32.[解析]B。空格前是副词mostly,空格后是名词词组earlierstudies,由空格所在小分句开头的and以及本句主语theactualresults可知,此空应该填入一个动词原形。根据句意,选项中只有confirm符合句意。故选B。33.[解析]K。空格前是形容词global,空格后是介词调组forexcellenceinteaching,所以此空应该填入一个名词。根据句意,选项中只有reputation符合句意。故选K。34.Care,advancedthinkingskills,demandingdemandfrom意为"向要求C。35.[解析]A。空格前是系动词be,空格后是动词的被动语态measured,所以此空应该填入一个副词,以修饰measured。根据句意,选项中只有accurately符合句意。故选A。CET6-cloze-2017-6-32017年6月六级考试真题<第3套>Halfofyourbrainstaysalertandpreparedfordangerwhenyousleepinanewplace,astudyhasrevealed.Thisphenomenonisoften26toasthe"first-night-effect".ResearchersfromBrownUniversityfoundthatanetworkinthelefthemisphereofthebrain"remainedmoreactive"thanthenetworkintherightsideofthebrain.Playingsoundsintotherightears<stimulatingthelefthemisphere>of27wasmorelikelytowakethemupthanifthenoiseswereplayedintotheirleftear.Itwas28observedthattheleftsideofthebrainwasmoreactiveduringdeepsleep.Whentheresearchersrepeatedthelaboratoryexperimentonthesecondandthirdnightstheyfoundthelefthemispherecouldnotbestimulatedinthesamewayduringdeepsleep.Theresearchersexplainedthatthestudydemonstratedwhenweareina29environmentthebrainpartlyremainsalertsothathumanscandefendthemselvesagainstany30danger.Theresearchersbelievethisisthefirsttimethatthe"first-night-effect"ofdifferentbrainstateshasbeen31inhumans.Itisn’t,however,thefirsttimeithaseverbeenseen.Someanimal32alsodisplaythisphenomenon.Forexample,dolphins,aswellasother33animals,shutdownonehemisphereofthebrainwhentheygotosleep.Apreviousstudynotedthatdolphinsalways34controltheirbreathing.Withoutkeepingthebrainactivewhilesleeping,theywouldprobablydrown.But,asthehumanstudysuggest,anotherreasonfordolphinskeepingtheireyesopenduringsleepisthattheycanlookoutfor35whileasleep.Italsokeepstheirphysiologicalprocessesworking.A>classifiedB>consciouslyC>dramaticallyD>exoticE>identifiedF>inherentG>marineH>novelI>potentialJ>predatorsreferredL>speciesM>specificallyN>varietiesO>volunteers26.[解析]K。空格前是系动词is和副词often,空格后是不定式to,所以此空应该填入一个形容词或者动词的-ed形式。选项referred符合句意。bereferredtoas为固定搭配,意为"被称为"。故选K。27.[解析]O。空格前是名词词组therightears和介词of,空格后是系动词was,所以此空应该填入一个表示人的名词,表示所属关系。选项volunteers符合句意。故选O。28.[解析]M。空格前是系动词was,空格后是动词的-ed形式observed,所以此空应该填入一个副词,修饰observed。选项specifically符合。故选M。29.[解析]H。空格前是不定冠词a；空格后是名词environment,所以此空应该填入一个形容词。选项novel符合句意。故选H。30.[解析]I。空格前是代词any,空格后是名词danger,所以此空应该填入一个形容词。选项potential符合句意。故选I。31.[解析]E。空格前是现在完成时的标志词hasbeen,空格后是介词词组inhumans,所以此空应该填入一个动词的-ed形式。选项identified符合句意。故选E。alsodisplay,someanimalspecies。33.[解析]G。空格前是代词other,空格后是名词animals,所以此空应该填入一个形容词。选项m