2014届高考英语一轮复习 Unit21 指导课时作业A卷（含解析） 北师大版.doc

unit 21 a卷一、单项填空1(2012平顶山月考)the government passed a regulation to _ parking in the city centre.aavoidbprohibitcallow dagree2since im a citizen，nobody can _ me of my right to work and speak.atake bpreventcrob dsteal3(2012湖北联考)the present system no longer meets the changing needs of our customers；we have to make a(n)_ management system.acontradictory bendlesscflexible dconcrete4(2012江苏调研)football fans are always arguing over those _ goals in the world cup.aconfidential bcontroversialccontemporary dcontradictory5(2012皖西五校联考)we both strongly _ you going to the country at this time of the war.its not a wise decision.aenjoy bopposecappreciate dinsist6we would maintain the world balance of power _.aat all costs bat costcat our best dat best7mike，its a pity you didnt come to last nights concert.it was really great!really？if i _ so busy，i would have gone with you.ahadnt been bwerentcshouldnt be dwouldnt be8(2012六安月考)it has been several months since he _ the fuel tank.awiped away bwiped offcwiped out dwiped up9we should always be _ of the views of others，even if we disagree with them.acautious bcuriouscrespective dtolerant10his sister is said _in the supermarket when she was doing shopping there yesterday.ato be badly treated bbadly treatedcbeing badly treated dto have been badly treated11it has been reported that some government leaders _ their authority and position to get illegal profits for themselves.aemploy babandoncabuse doverlook12after he hung up，he felt more tired than ever and decided to _ calling the detective agency until the next day.adesire bsuggestcderive dpostpone13the lucky fans will be picked out _ rather than chosen beforehand to perform with the singer during the party.aby accident bon earthcat random don average14in spite of the differences in colors，languages and races，we share the charm and joy of the olympic games，and together we _ the peace of the world.aseek for bvote forcmake up dmake sure15every day my afterschool _ is doing my homework and then watching tv until i go go bed at half past ten.aroute broutinecpractice ddrill二、完形填空(2012西安质检)my father enjoys bike riding.ever since i was little，ive always loved going biking with my dad._1_，as i became a teenager，other things began to draw my _2_.suddenly，it was important to do things with _3_.i saw my dad every evening at home.why did i have to _4_ my sundays to allday bike trips with him，too？if my indifference(冷漠)hurt him，my father kept _5_，but he would always let me know when he was planning a bike trip _6_ i wanted to come.it was a sunday morning，and i was in low _7_.two of my friends had gone to the movies without inviting me.just then my father _8_ my room.“its a beautiful day.want to go for a _9_，today，beck？”“leave me alone！”i impatiently _10_.those were the last words i said to him before he left the house that _11_.several hours later，the police called us，_12_ us that dad had a traffic accident.my fathers injuries were serious.it took several days before he could _13_ speak.beside his bed i held his hand gently，_14_ of hurting him.“daddy.im sorry.”“its okay，sweetheart.ill be okay.”“no，”i said，“i _15_ what i said to you that day.you know，that morning？”“sweetheart，i dont _16_ anything about that day，not before，during or after the accident.i remember kissing you goodnight the night before，though.”he _17_ a weak smile.i felt regretful for my thoughtless remark，for i _18_ wanted him to leave me alone.my teacher once told me that _19_ have immeasurable power.they can hurt or they can heal.and we all have the _20_ to choose our words.i intend to do that very carefully from now on.1a.therefore binsteadcbesides dhowever2a.attention bsightceffort denergy3a.dad bfriendscteachers dbrothers4a.start bsavecdevote dwaste5a.silent bbusycasleep dawake6a.unless bin casecso that das if7a.spirits bconditionscstate dhopes8a.left bcheckedcentered dknocked9a.ride bwalkcpicnic dgame10a.whispered bwarnedcannounced dshouted11a.moment bmorningcafternoon devening12a.convincing bremindingcinforming dphoning13a.eventually bgenerallycstrictly dbroadly14a.tired bafraidcaware dsorry15a.discuss bthinkccare dmean16a.hate bforgetcremember dlike17a.got bexpressedcexchanged dmanaged18a.often bneverceven donce19a.apologies bpromisescsmiles dwords20a.experience bhonorcpower ddesire三、阅读理解few of us make money by losing sleep.but three graduate students at brown university in providence built a company around sleep deprivation(睡眠不足)jason donahue，ben rubin and eric shashoua were working late nights in browns business and engineering schoolsand began thinking about ways to sleep better.they discovered they werent alone in burning the midnight oil.around 20% of americans get less than six hours of rest a night.the friends imagined a smart alarm clock that could track how much time we spend in the most restorative(促使康复的)stages of the sleep cycle：rem(快速眼动)and deep sleep.what would it cost to design such a thing？five years of research,20 employees，$14 million in funding and a lot of doubting from investors and scientists.the company，zeo，based in newton，mass.，launched its product in june.the zeo device uses a headband with tiny sensors(传感器)that scan your brain for signs of four sleep states：rem，light，deep and waking sleep.the smart alarm clock displays a graph of your sleep pattern and wakes you as youre transitioning out of rem sleep(which is when youre least sleepy)in the morning you can upload the data to the companys website，and so track your sleep over time.the cost，$399，includes six months access to one of zeos online sleep coaches.most of the feedback(反馈)comes in the form of zeos zq score showing how well youve slept.“zeo allows people to unlock this black box of sleep，”says dave dickinson，a healthcare ceo.whether any of this actually improves sleep is up to the consumer，who will also need to make lifestyle changes like cutting out alcohol before bedtime or caffeine after 3 pm.for now the company is selling zeo online only.dickinson also plans to expand to countries such as australia，where sleep deprivation approaches us.levels.1why did the three students imagine a smart alarm clock?ato earn enough money for a scholarship.bto wake them up on time in the morning.cto record the length of their sleep time.dto improve the quality of their sleep.2which is the correct order of how the zeo device works?awake you when youre least sleepybscan your brain for sleep signscget the zeos zq scoredshow a graph of your sleep patterneupload the data to the companys websitead，b，a，e，c bb，a，d，c，ecd，b，a，c，e db，d，a，e，c3the zeos zq score is connected with _.athe quality of sleep bthe length of sleepcthe time of waking up dthe time of going to bed4from the passage we can learn that _.azeo will have a direct effect on users lifestylesbzeo will have better results if users make proper changesczeo is reported to be well received in australiadzeo can now be bought either in stores or online参考答案与解析课时作业(四十一)unit 21a卷一、单项填空1解析：由句意可知，此处应是“禁止做某事”，prohibit doing sth.禁止做某事，符合句意。答案：b2解析：句意：既然我是一个公民，没有人能剥夺我工作和说话的权利。rob sb.of sth.剥夺某人某物，符合句意。答案：c3解析：考查形容词词义辨析。句意：当前的制度满足不了顾客不断变化的需求了，我们必须建立一种灵活的管理制度。contradictory“矛盾的，对立的”；endless“无尽的，不断的”；flexible“灵活的，可变通的”；concrete“具体的”。答案：c4解析：句意：球迷们一直在争论世界杯上那些有争议的进球。confidential“秘密的”；controversial“有争议的”；contemporary“当代的”；contradictory“矛盾的”。答案：b5解析：句意：我们俩都坚决反对你在战争的时候去这个国家，这是不明智的决定。oppose反对，符合句意。enjoy喜欢；appreciate欣赏；insist坚持。答案：b6解析：句意：我们将不惜一切代价维持世界力量的均衡。at all cost (s)不管付出多大代价，符合句意。at cost按成本；at best至多；at ones best处于最佳状态。答案：a7解析：句意：迈克，非常遗憾你没能去昨晚的音乐会。那场音乐会真是太棒了！真的吗？如果我不那么忙的话，就和你们一起去了。根据句意，本题考查与过去事实相反的虚拟语气，if从句的谓语动词应该是“had过去分词”。答案：a8解析：句意：他好几个月没有擦洗油箱了。wipe out擦净的内部，符合句意。答案：c9解析：考查形容词辨析。句意：我们总是应该容忍别人的看法，即使我们不同意他们。结合后面的信息，我们可以推测出来是容忍别人的意见和看法。cautious 小心的；curious 好奇的；respective 各自的。答案：d10解析：句意：昨天在超市购物时，据说他妹妹受到不公正对待。b、c 两项不是不定式形式，a项不定式表示的时间与句子后半部分时间不一致。答案：d11解析：abuse此处表示“滥用”之意。a.利用，使用；b.放弃，遗弃；d.忽视。答案：c12解析：句意：挂了电话后他感到无比的累，决定延迟到第二天再打电话给侦探事务所。desire期望；suggest建议；derive获得；postpone延期，推迟，符合句意。答案：d14解析：句意：尽管在肤色、语言和种族上有区别，但是我们分享了奥林匹克运动会的魅力和喜悦，并且我们要一起追寻世界和平。vote for投票赞成；make up组成；make sure确保；seek for寻求。答案：a15解析：句意：每天放学后我的惯例就是做作业，然后看电视直到10点半上床去睡觉。route路线；routine常规，惯例；practice练习，做法；drill操练。答案：b二、完形填空解题导语：语言的力量是巨大的，不要因为说话不当而伤害别人。本文讲述了作者的切身体会。1解析：根据下文other things推知是语意转折，故用however。答案：d2解析：由other things可知，是其他事情吸引了我的注意力。答案：a3解析：兴趣转移，对象也发生改变，据第二段第二句跟two of my friends相处的事可以看出作者现在喜欢跟朋友们玩。答案：b4解析：devote time to sth.是固定搭配，符合题意。答案：c5解析：下文but he would always let me know when.说明正常情