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1Unit4(时间：40分钟满分：45分)Ⅰ.单项填空(共15小题；每小题1分，满分15分)1．Iwillbeawayforatleastayear；Iwouldappreciate________fromyounowandthen，________mehoweveryoneisgettingalong.A．hearing；tellB．tohear；tellC．hearing；tellingD．tohear；totell答案C[考查动词的非谓语形式。appreciate后接动名词作宾语；第二空为现在分词形式作状语。句意：我要离开至少一年的时间，时不时收到你的信告诉我大家的现状，我会很高兴的。]2．Thisspecialschoolacceptsalldisabledstudents，________educationallevelandbackground.A．accordingtoB．regardlessofC．inadditiontoD．intermsof答案B[考查介词短语的辨析。accordingto根据；regardlessof不管；不顾；inadditionto除……之外；intermsof就……而言。句意：这家特校接受所有残疾的学生，不管他们的教育水平和背景。]3．Stepsmustbetaken________thiskindofdisasterwillneverhappenagain.(2012·山东诸城市高三月考)A．becauseB．evenifC．sothatD．as答案C[考查状语从句的连接词。sothat以便于；为了，引导目的状语从句，复合句意及句子结构，故C项正确。句意：必须采取措施以避免这种灾难不再发生。because因为，引导原因状语从句；evenif即使，引导条件状语从句；as因为；由于，引导原因状语从句。]4．—Whydon'twechoosethatroadtosavetime?—Thebridgetoit________.A．hasrepairedB．isrepairedC．isbeingrepairedD．willberepaired答案C[考查动词时态及语态。由语境可知，桥还在修理中，故用进行时的被动形式。句意：——我们为什么不走那条路以节约时间呢？——通往那条路的桥还在修理中。]5．Inthelastfewyearsthousandsoffilms________allovertheworld.A．haveproducedB．havebeenproducedC．areproducingD．arebeingproduced答案B[考查动词时态及语态。由时间状语inthelastfewyears可知，空格处应用现在完成时，且films与produce之间为逻辑上的动宾关系，故用完成时的被动形式。句意：在过2去的几年里，全世界共制作了数千部电影。]6．Theconferencehasbeenheldtodiscussthe________oftheJapan'snuclearradiationonpeople'slivesinthisarea.A．effectsB．concernC．protectionD．attitudes答案A[考查名词词义辨析。effect影响；结果；concern关心；担心；protection保护；attitude态度。theeffectonsth对……的影响。句意：举行了一次会议来讨论日本的核辐射对这一地区人们的生活的影响。]7．Manywildanimals________，sowemusttakemeasurestoprotectthem.(2012·山东实验中学高三模拟)A．aredyingoutB．havediedoutC．diedoutD．dieout答案A[考查动词的时态。dieout灭绝。由sowemusttakemeasurestoprotectthem可知A项正确。句意：许多野生动物正在灭绝，因此，我们必须采取措施来保护它们。]8．Accordingtotherecordreports,oneoftherareanimals，________crocodileisin________dangerofdyingout.A．a;theB．/；asC．/;theD．the;/答案D[考查语境中冠词的用法。可数名词单数前可以加a/an/the来表达泛指概念；indangerof有……的危险，为短语搭配形式，danger前不加冠词，故D项正确。句意：根据调查报告显示，鳄鱼正面临灭绝的危险。]9．Manydevelopingcountriesareunwillingtopursuetheireconomicdevelopment________destroyingtheenvironmentdespitetherebeingseveralfinancialcrises.(2012·江苏淮安高三调研)A．attheriskofB．atthecostofC．attheendofD．atthemercyof答案B[考查介词短语的辨析。attheriskof冒着……的危险；atthecostof以……为代价；attheendof在……的末端/尽头；atthemercyof听凭……的处置。句意：尽管存在金融危机，但许多发展中国家并不愿意以破坏环境为代价来追求经济的发展。]10．Gooddietarysourcesofcalciumshould________leafygreenvegetables,fish，yogurt,tofuandbreakfastcereals(谷类食物)．A．containB．possessC．shareD．include答案D[考查动词词义辨析。contain包含，强调宾语是主语的组成部分；possess拥有；share分享；include包含；包括……在内。由语境可知D项正确。句意：良好的饮食结构中3钙的来源主要包括绿叶蔬菜、鱼、酸奶、豆腐及适合早餐的谷类食物。]11．—Whatisthatnoise?—Oh,Iforgottotellyouthatthenewmachine________.(2012·安徽百校论坛高三联考)A．wastestedB．willbetestedC．hasbeentestedD．isbeingtested答案D[考查动词的时态及语态。由Whatisthatnoise？可知某一动作正在进行，故D项正确。句意：——什么声？——噢，我忘记告诉你了，那台新机器正在检测。]12．________momenthesawZhaoBenshan'sfunnyperformances,heburstinto________laughter.(2012·浙江学军中学高三模拟)A．A；/B．A；theC．The；/D．The;a答案C[考查语境中冠词的用法。themoment＋句子，表示“一……就……”；burstintolaughter突然大笑起来。句意：他一看到赵本山滑稽的表演就大笑起来。]13．Alwaysrememberthatyourowndecision________ismoreimportantthananythingelse.A．tosucceedB．succeedingC．havingsucceededD．succeeded答案A[考查动词的非谓语形式作后置定语。不定式作定语表示该动作还没有发生；现在分词作定语表示该动作正在进行；过去分词作定语则表示动作的完成。由语境可知A项正确。句意：永远牢记你要成功的决定比其它任何东西都重要。]14．Itwasnotwhathesaidbut________hesaiditthatmademesurprised.A．thewayB．inthewaythatC．inthewayD．thewaywhich答案A[考查名词way的用法。theway表示“……的方式”且后接定语从句时从句的引导词有三种形式，即：inwhich，that或什么也不加，由此可知A项正确。句意：使我吃惊的不是他说的话而是他说话的方式。]15．________involunteeringwork，thecoupleleadabusyandrichlifetheyretired.A．EmployingB．EmployedC．ToemployD．Beingemployed答案B[考查动词的非谓语形式做状语。beemployedindoingsth忙于干某事，作状语时去掉be动词。句意：由于忙于做志愿工作，那对夫妇退休后过着忙碌而充实的生活。]Ⅱ.完形填空(共20小题；每小题1分，满分20分)Youhavewaited45minutesforthevaluable10minutes'breakbetweenclasses.Butwhenthebellforthenextclassrings，youcan't__16__howquicklytimehaspassed.Ifyouarefamiliarwiththis__17__，you'llknowhowtimeflieswhenyouarehavingfunand4__18__whenyouarebored.Nowscientistshave__19__areasonwhythisisthecase.Scanshaveshownthatpatternsofactivityinthebrain__20__accordingtohowwefocusonatask.Whenweare__21__，weconcentratemoreonhowtimeispassing.Andthismakesus__22__theclockistickingmoreslowly.Inanexperiment__23__byaFrenchlaboratory,12volunteerswatchedanimage__24__researchersmonitoredtheirbrainactivity.Thevolunteersweretoldto__25__concentrateonhowlonganimageappeared，then__26__thecoloroftheimage，andthird，studyboththedurationandthecolor.Theresultsshowedthatthe__27__wasmoreactivewhenthevolunteerspaidattentionto__28__subjects.Itisthoughtthatifthebrainis__29__focusingonmanyaspectsofatask，ithasto__30__itsresources，andpayslessattentiontotheclock.__31__，timereallypasseswithoutus__32__it，andseemstogoquickly.Ifthebrainisnotsoactive，itconcentratesits__33__energiesonmonitoringthepassingoftime.__34__，timeseemstodrag.Nexttimeyoufeelbored__35__，perhapsyoushouldpaymoreattentiontowhattheteacherissaying!【解题导语】本文讲述了为什么有时我们感觉一节课时间过得很快，有时过得很慢，这主要是因为人的大脑对于一个任务的专注程度不同。当大脑专注于一个任务的多个方面时，它的精力就会被分散，因而就转移了对时间的注意。16．A.guessB．learnC．believeD．doubt答案C[考查语境与动词的辨析。课间十分钟玩得很开心，时间在不知不觉中就过去了。此处用can'tbelieve表示对这段时间飞快流逝的惊讶与感