2014届高考英语一轮复习 Unit20 指导课时作业A卷（含解析） 北师大版.doc

unit 20 a卷一、单项填空1(2012安庆月考)when you light candles，they may _ some smell.agive awaybgive offcgive in dgive up2(2012六安月考)its generally agreed that he will _ his position to his son.atake over bhand overchand out dgive out3a driver shall be fined if he drives without the _.apermission bpermitcallowance dadmittance4(2012哈尔滨模拟)is there any particular soup you would like to have?_ you select is all right with me.awhatever bwhichcno matter what dwhichever5(2012南京金陵中学高三期中)make sure the gas is turned off after a bath，which would _ cause danger.asomehow bmeanwhilecotherwise dfurthermore6china is making great efforts in the prevention and _ of aids，mankinds common“super killer”aheal bcurectreat drecover7as a teacher，we should try to _ it _ to our students how helpful a correct learning method is.aget；about bget；awaycget；across dget；off8after the fire，they arranged for mr.smith，one of our inspectors，to come and _ the damage.arescue bdonatecinspire dassess9there are many books！its not easy for us to decide _ and what to leave behind.awhat to be taken bwhat to takechow to take dhow to be taken10after a whole afternoons heated discussion，they finally _ to us what had been decided.atold bdeclaredcstated dmade11he asked us to _ them in carrying through the plan at the meeting yesterday.aprovide bencouragecassist dpersuade12he is a man of _ ideas and he often makes a careful plan _.aadvanced；before advancebadvanced；in advance ofcadvanced；in advancedadvancing；in advance of13it is reported that the government will give all private _ to floodstricken areas.arelations bintonationsc donations ddominations14i used to _ my friends by letters while now the internet is more convenient.ameet with bcome up withcput up with dcorrespond with15of the two _ pieces of news the _ is more of interest than the former.alatest；latter blast；latestclatest；later dlatter；last二、完形填空whenever i think of the moonwalk，a certain pop icon comes into my mindmichael jackson.when i was a _1_，my mother often purchased collections of his music video on _2_.when she took the collections home，shed _3_ me to watch them with her._4_ i was frightened by michael jacksons wolflike appearance in thriller，i was _5_ by his voice and fluent movements.gradually，i began to _6_ my own collections of his songs，until i _7_ all of his albums and videos.thus，when the news of his death _8_ in june，i felt like an important aspect(方面)of my childhood had _9_ as well.i have loved jacksons music and his _10_ from the moment my mother _11_ me to him.i felt sorry for the man，who，although _12_ a brilliant and energetic performer，transformed into a pitiful person _13_ always needed a shield from the sun.so，when his _14_ came and those rumors that damaged jacksons image were _15_ aside to honor the late“king of pop”，i was rather _16_ .it struck me as ridiculous that all these people who once thought jackson was a childmolester(骚扰者)with strange habits now _17_ him a wonderful man and the greatest _18_ who ever lived.despite these frustrations，i _19_ mourned(悼念)his death，and my music playlist showed _20_ but his songs.1a.man bchildcwoman dperson2a.end baccountcperformance dsale3a.appeal bforcecmanage dask4a.although bbecausecsince dwhen5a.delighted bworriedcfascinated dsatisfied6a.find bdestroycbuild dmanage7a.owned bgainedcneeded dselected8a.stuck bstruckcdropped drepeated9a.died bexistedcappeared dcompared10a.manner bexchangeccomment dsteps11a.introduced btaughtccombined dforgave12a.besides bstillconce dyet13a.who bwhichcwhere dwhy14a.situation bnewscmessage ddeath15a.thrown bsetchunted dthought16a.happy bangryccool dequal17a.consider barguecprotect dadvance18a.host bagentcmusician dwriter19a.silently bquietlyccalmly ddeeply20a.something banythingceverything dnothing三、阅读理解rising levels of carbon dioxide in the atmosphere are a major cause of climate change，and now a new study has confirmed that atmospheric co2 is also affecting the ocean chemistry and potentially harming sea life.montana state university scientist robert dore has been researching the water in the pacific ocean for almost two decades.“weve been going to the same spot in the pacific ocean，and we try and characterize longterm change in the open ocean environment.and one of the key things that we measure is co2 levels.and weve been able to record this increasing quantity of atmospheric co2 into the ocean.”scientists expected that as atmospheric co2 increased，more and more of the carbon dioxide would be absorbed into the ocean，affecting the chemical balance of the sea water，with a potentially harmful impact on shellfish and coral in particular.“as carbon dioxide dissolves(溶解)in the water or seawater in this case，it forms a weak acid，carbonic acid，”dore explains.“and therefore，as the concentration of co2 in the atmosphere goes up and that exchanges with the surface seawater，it drives the ph down，and makes it more acidic.”the seawater dore and his colleagues have analyzed confirms what the theory predicts.the effect was particularly striking at about 250 meters down，and again at 500 meters.dore and his colleagues came up with two possible explanations.it could be that surface water picked up co2 and then moved to those depths.or there could be a biological explanation.“its important to realize that the oceans are really becoming acidic.and it could have negative impacts on a whole variety of sea life from fish to coral.its potentially catastrophic.”1what can be the best title of the passage?asea life facing dangerbscientist researching seawatercoceans becoming more acidicdclimate change affecting seawater2which of the following shows the process of the impact of atmospheric co2 on sea life?asea life is endangered.bco2 goes into the surface water.cthe ocean chemistry is affected.dco2 decreases the ph and makes the seawater more acidic.eco2 levels in the atmosphere go up.a.b.c.d.3scientist robert dore came to the conclusion based on _.ahis research and analysisbthe expectation of other scientistscsome former theoryda major cause of climate change4what does the passage want to tell us most?ait takes time to make a scientific study.batmospheric co2 is doing harm to sea life.crobert dore is a committed and serious scientist.dmeasures should be taken to prevent the potential catastrophe.参考答案与解析课时作业(三十九)unit 20a卷一、单项填空1解析：句意：当你点蜡烛时，它们会发出某种气味。give off放出，排放(气味等)。答案：b2解析：句意：他将移交他的位子给儿子。hand over移交。答案：b3解析：句意：如果司机无证驾驶，他将会受到罚款。permit“许可证，许可”。permission“许可，允许”；allowance“津贴，补助费”；admittance“进入权”。答案：b4解析：答语句意：无论你选什么，我都没有意见。此处为主语从句，故排除c项。which表示“哪一个”，要有选择的范围，故排除。答案：a5解析：句意：洗澡后确保将煤气关上，不然会引起危险。otherwise“否则，不然的话”符合题意。答案：c7解析：get about四处走动，(消息等)传开；get away(from)逃离；get across使被理解；get off下车。句意：作为老师，我们理应让学生理解正确的学习方法是多么的有益。答案：c8解析：rescue救援；donate捐赠；inspire鼓励；assess评估，评定。句意：火灾之后，他们就安排我们的检查员之一史密斯先生来评估损失。答案：d9解析：句意：书太多了！拿走哪些，留下哪些对我们来说不容易决定。and前后为并列结构。答案：b10解析：句意：经过一下午的激烈的讨论，他们最终向我们宣布了他们的决定。tell告诉，后直接接人作宾语；declare宣布，宣告，应用declare to sb.sth.；state陈述；make做。答案：b11解析：考查词义辨析。在用法上只有assist与介词in搭配，assist sb.in (doing) sth.帮助某人做某事。答案：c12解析：句意：他是一个具有先进思想的人，他经常提前做好详细的计划。advanced形容词，作定语修饰名词ideas；in advance“提前”，固定短语。in advance of是介词短语，其后要有宾语。答案：c13解析：donation“捐赠(物)”；relation“关系”；intonation“语调”；domination“支配，控制”。句意：据报道政府将把所有私人捐赠交给遭受洪灾的地区。答案：c14解析：句意：我过去和朋友们靠书信交流，而现在用互联网更方便了。correspond with“与通信”；meet with“碰见”；come up with“提出”；put up with“容忍”。答案：d15解析：句意：这两则最新的新闻中，后者比前者更有趣。the latest最新的；the latter两者中的后者。答案：a二、完形填空解题导语：在母亲的“胁迫”下，作者逐渐迷恋上了迈克尔杰克逊的歌声和动作。当他逝世这一噩耗传开后，作者感到无比失落。虽然人们对他的非议早已烟消云散，可是作者依然播放着他的歌曲，在音乐声中缅怀心中的偶像。1解析：此处是对过去的回忆，叙述的是作者“孩童”时代的事情。另外，第三段中的“my childhood”也是提示。答案：b2解析：本句提到作者的母亲经常购买迈克尔杰克逊的音乐专辑，由此可知用sale。on sale 表示“出售，折价销售”。答案：d3解析：下文提到作者对迈克尔杰克逊在thriller中像狼一样的外貌感到无比恐惧，由此可知作者当时不敢观看，所以是作者的母亲“强迫”作者和她一起欣赏。答案：b4解析：前半句叙述的是对他的外貌的恐惧，后半句描写的是对他的声音以及动作的入迷，所以选a项，表示的是让步关系。答案：a5解析：虽然他的外貌恐怖，但是他的声音优美，动作娴熟，深深地“迷住”了作者。fascinated 表示“入迷的，感兴趣的”。答案：c6解析：上文提到作者迷恋他的声音和动作，所以自己开始慢慢收集他的专辑。build表示“创建，建立”。答案：c7解析：作者坚持不懈地收集，直到“拥有”了迈克尔杰克逊全部的唱片和录像带。b项表示“获得”时通常指获得物质利益，因此语义不太恰当。答案：a8解析：此处 struck 原形是 strike，表示“突然爆发”。a 项的动词原形是 stick，表示“刺入，粘贴”，不符合语境。答案：b9解析：听到迈克尔杰克逊在6月份突然去世的消息，作者感觉自己童年时代的一个重要的组成部分也随之“消亡”。答案：a10解析：上文中提到作者痴迷于他的优美的声音和娴熟的动作，由此可知作者一直非常喜欢他的音乐和舞步。答案：d11解析：根据上文叙述的作者小时候的经历可知，作者是在母亲的“介绍”下开始喜欢上他的。答案：a12解析：结合上下文可知他“曾经”是一个才华横溢精力充沛的表演者，后来成为一个总是戴着防护物以遮蔽阳光的可怜人物。答案：c13解析：who always needed a shield from the sun是定语从句，修饰先行词person。答案：a14解析：