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1Unit3(时间：30分钟满分：40分)Ⅰ.单项填空(共15小题；每小题1分，满分15分)1．Teachershavetoconstantlyupdatetheirknowledgeinordertomaintaintheirprofessional________.A．consequenceB．independenceC．competenceD．intelligence答案C[考查名词词义的辨析。consequence结果；后果；independence独立；competence能力；intelligence智力。句意：教师必须不断的更新自己知识以便于保持他们在职业上的能力。]2．Thetrafficproblemwearelookingforwardtoseeing________shouldhaveattractedthelocalgovernment'sattention.(2012·衡阳市八中高三月考)A．solvingB．solvedC．tosolveD．solve答案B[考查动词的非谓语形式作补足语。分析句子结构可知，wearelookingforwardtoseeing________部分为定语从句，修饰thetrafficproblem，作宾语的引导词被省略。因此，空格处应为句型seesthdone，故B项正确。句意：我们渴望得到处理的交通问题应该引起政府的关注。]3．Manypeoplebelievethatpovertyisonlyaprobleminruralareas.________，itisalsoaprobleminsomeurbanareas.A．AsaresultB．FurthermoreC．IntheendD．Asamatteroffact答案D[考查短语的辨析。asaresult因此；furthermore而且；intheend最后；asamatteroffact实际上。由句中的also可知，D项符合句子的逻辑结构。句意：许多人认为贫穷只是乡村地区存在的问题，实际上，它也是部分城市地区存在的问题。]4．Whathehassaidisreasonable________.(2012·福建厦门三校高三联考)A．inthewayB．onthewayC．bythewayD．inaway答案D[考查介词短语的辨析。intheway挡道；碍事；ontheway在途中；即将到来；bytheway顺便说；顺便问一下；inaway在某方面。句意：他说的话在某些方面是合理的。]5．Chinahasshownincreasinglypositive________ofeconomicperformance，butthecountry'seconomicrecoveryisstilluncertain，PrimeMinisterWensaid.A．tracesB．signalsC．marksD．signs答案D[考查名词词义的辨析。trace痕迹；遗迹；signal信号；mark符号；记号；sign符号；标记。句意：温家宝总理说中国已经表现出了日益增长的经济实绩的征兆，但是国家2的经济复苏还不稳定。]6．Ihaven'tseenAnnfor________longthatI'veforgottenwhatshelookslike.A．suchB．veryC．soD．too答案C[句意：我有很长时间没见着安了，我已忘记她长什么样了。so/such...that如此……以至于，即so＋adj./adv.＋that，而such＋n.＋that，long为副词，故用so。故选C。]7．Nofurtherfinancialproblem________，butweoncecouldn'tmakebothendsmeet.A．roseB．aroseC．arousedD．raised答案B[考查动词词义的辨析。rise为不及物动词，意为上升；升起；arise常表示(问题、困难等)出现，不及物动词；arouse及物动词，唤醒；唤起；raise及物动词，抚养；提高。句子主语为problem，由此可知空格处应用arise。句意：没有再出现财政问题，但我们又一次入不敷出了。]8．I'mnotsurewhetherI'llsucceedinpersuadingher.________，I'lltryallpossiblemeanstomakeit.A．EventhoughB．IfsoC．AnyhowD．Therefore答案C[考查副词及连词的辨析。eventhough尽管，后接句子；ifso如果这样的话，为状语从句的省略；anyhow无论如何；不管怎么说；therefore因此。由句子结构可知C项正确。句意：我不能确定是否能说服她，但不管怎么说，我要尽一切可能去做这件事。]9．ManyEuropeansexplored________continentofAfricainthe19thcenturywiththedeterminationtodiscover________unknown.A．/;theB．the;anC．/;anD．the;the答案D[考查冠词的用法。continent大洲，有定语ofAfrica修饰，应用定冠词the；第二空为the＋形容词表示一类人或物。句意：许多欧洲人在19世纪时到非洲去探险，决定发现那些未知的东西。]10．________thatTomgotinsidetheroomtoseewhatwasgoingon.(2012·安徽蚌埠二中高三质检)A．SostrangelydidhefeelB．SostrangelyhefeltC．SostrangedidhefeelD．Sostrangehefelt答案C[考查so...that句型的倒装。so＋adj./adv.位于句首时主句用倒装结构。句意：他觉得那么奇怪以至于汤姆都到房间里来看看发生了什么事。]11．________，theexcitedcrowdsinthesquaresuddenlybecamesoquiet.It'sstillpuzzling.3A．PersonallyB．NaturallyC．SomehowD．Anyway答案C[考查副词的用法。somehow表示“不知为什么”，符合句子结构。personally本人；亲自；naturally自然地；anyway无论如何；不管怎么说。句意：广场上兴奋的人群不知为什么突然那么安静。太令人不解了。]12．Thepolicehavefinally________themystery(疑案)．(2012·山西介休十中高三模拟)A．succeededtosolveB．succeededinsolvingC．succeededsolvingD．succeededonsolving答案B[考查短语的搭配。succeedindoingsth成功做某事。句意：最后警察成功的破解了这一疑案。]13．Everypossiblemeans________，butitseemsthatnothingwillpreventthesituationfromgettingworse.(2012·陕西西安市高三质检)A．hastriedB．havetriedC．hasbeentriedD．havebeentried答案C[考查主谓一致。everypossiblemeans每一种可能的方法，谓语动词应用单数形式，且means与try之间为动宾关系，故C项正确。句意：每一种可能的方法都被试过了，但好像没有什么能阻止这种状况的每况愈下。]14．Creativethinkingisaconsciousefforttobreakawayfromoldpatternsofthinkinginorderto________newpossibilities.A．solveB．applyC．exploreD．ensure答案C[考查动词词义辨析。solve解决；apply申请；explore探索；ensure保证；确保。句意：创造性思维是一种试图摆脱旧思考模式、探索新的可能性的有意识的努力。]15．Whilebuildingatubethroughthemountain，________.A．anundergroundlakewasdiscoverdB．therewasanundergroundlakediscoveredC．alakewasdiscoveredundergroundD．theworkersdiscoveredanundergroundlake答案D[分析句子结构可知，从句为状语从句的省略，此时主从句的主语应一致，故D项正确。句意：在山上建隧道时，工人们发现了一个地下湖。]Ⅱ.阅读理解(共5小题；每小题2分，满分10分)Whatwillpoweryourhouseinthefuture？Nuclear，wind，orsolarpower？AccordingtoscientistsattheMassachusettsInstituteofTechnology(MIT)intheUS，itmightbeleaves—but4artificial(人造的)ones.Naturalleavesareabletochangesunlightandwaterintoenergy.Itisknownasphotosynthesis(光合作用)．Nowresearchershavefoundawaytoimitatethisseeminglysimpleprocess.TheartificialleafdevelopedbyDanielNoceraandhiscolleaguesatMITcanbeseenasaspecialsiliconchipwithcatalysts(催化剂)．Similartonaturalleaves，itcansplitwaterintohydrogenandoxygenwhenputintoabucketofwater.Thehydrogenandoxygengasesarethenstoredinafuelcell，whichusesthosetwomaterialstoproduceelectricity，locatedeitherontopofahouseorbesidethehouse.Thoughtheleafisonlyabouttheshapeofapokercard，scientistsclaimedthatitispromisingtobeaninexpensivesourceofelectricityindevelopingcountries.“OnecanimaginevillagesinIndiaandAfricanotlongfromnowpurchasinganaffordablebasicpowersystembasedonthistechnology，”saidNoceraataconferenceoftheAmericanChemicalSociety.Theartificialleafisnotanewidea.Thefirstartificialleafwasinventedin1997butwastooexpensiveandunstableforpracticaluse.Thenewleaf，bycontrast，ismadeofcheapmaterials，easytouseandhighlystable.Inlaboratorystudies，Nocerashowedthatanartificialleafprototype(原型)couldoperatecontinuouslyforatleast45hourswithoutadropinactivity.ThewonderfulimprovementscomefromNocera'sr