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.
A．avoidB．prohibit
C．allow
D．agree
2．Since I'm a citizen，nobody can ______ me of my right to work and speak.
A．take
B．prevent
C．rob
D．steal
3．(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.
A．contradictory
B．endless
C．flexible
D．concrete
4．(2012江苏调研)Football fans are always arguing over those ______ goals in the World Cup.
A．confidential
B．controversial
C．contemporary
D．contradictory
5．(2012皖西五校联考)We both strongly ______ you going to the country at this time of the war.It's not a wise decision.
A．enjoy
B．oppose
C．appreciate
D．insist
6．We would maintain the world balance of power ______.
A．at all costs
B．at cost
C．at our best
D．at best
7．—Mike，it's a pity you didn't come to last night's concert.It was really great!
—Really？If I ______ so busy，I would have gone with you.
A．hadn't been
B．weren't
C．shouldn't be
D．wouldn't be
8．(2012六安月考)It has been several months since he ______ the fuel tank.
A．wiped away
B．wiped off
C．wiped out
D．wiped up
9．We should always be ______ of the views of others，even if we disagree with them.
A．cautious
B．curious
C．respective
D．tolerant
10．His sister is said ______in the supermarket when she was doing shopping there yesterday.
A．to be badly treated
B．badly treated
C．being badly treated
D．to have been badly treated
11．It has been reported that some government leaders ______ their authority and position to get illegal profits for themselves.
A．employ
B．abandon
C．abuse
D．overlook
12．After he hung up，he felt more tired than ever and decided to ______ calling the detective agency until the next day.
A．desire
B．suggest
C．derive
D．postpone
13．The lucky fans will be picked out ______ rather than chosen beforehand to perform with the singer during the party.
A．by accident
B．on earth
C．at random
D．on average
14．In 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.
A．seek for
B．vote for
C．make up
D．make sure
15．Every day my afterschool ______ is doing my homework and then watching TV until I go go bed at half past ten.
A．route
B．routine
C．practice
D．drill
二、完形填空
(2012西安质检)My father enjoys bike riding.Ever since I was little，I've 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.“It's 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 father's 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...I'm sorry...”
“It's okay，sweetheart.I'll be okay.”
“No，”I said，“I __15__ what I said to you that day.You know，that morning？”
“Sweetheart，I don't __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.
1．A.Therefore
B．Instead
C．Besides
D．However
2．A.attention
B．sight
C．effort
D．energy
3．A.Dad
B．friends
C．teachers
D．brothers
4．A.start
B．save
C．devote
D．waste
5．A.silent
B．busy
C．asleep
D．awake
6．A.unless
B．in case
C．so that
D．as if
7．A.spirits
B．conditions
C．state
D．hopes
8．A.left
B．checked
C．entered
D．knocked
9．A.ride
B．walk
C．picnic
D．game
10．A.whispered
B．warned
C．announced
D．shouted
11．A.moment
B．morning
C．afternoon
D．evening
12．A.convincing
B．reminding
C．informing
D．phoning
13．A.eventually
B．generally
C．strictly
D．broadly
14．A.tired
B．afraid
C．aware
D．sorry
15．A.discuss
B．think
C．care
D．mean
16．A.hate
B．forget
C．remember
D．like
17．A.got
B．expressed
C．exchanged
D．managed
18．A.often
B．never
C．even
D．once
19．A.apologies
B．promises
C．smiles
D．words
20．A.experience
B．honor
C．power
D．desire
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 Brown's business and engineering schools—and began thinking about ways to sleep better.They discovered they weren't 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 you're transitioning out of REM sleep(which is when you're least sleepy)．In the morning you can upload the data to the company's website，and so track your sleep over time.The cost，$399，includes six months' access to one of Zeo's online sleep coaches.Most of the feedback(反馈)comes in the form of Zeo's ZQ score showing how well you've 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 U．S.levels.
1．Why did the three students imagine a smart alarm clock?
A．To earn enough money for a scholarship.
B．To wake them up on time in the morning.
C．To record the length of their sleep time.
D．To improve the quality of their sleep.
2．Which is the correct order of how the Zeo device works?
a．wake you when you're least sleepy
b．scan your brain for sleep signs
c．get the Zeo's ZQ score
d．show a graph of your sleep pattern
e．upload the data to the company's website
A．d，b，a，e，c
B．b，a，d，c，e
C．d，b，a，c，e
D．b，d，a，e，c
3．The Zeo's ZQ score is connected with ______.
A．the quality of sleep
B．the length of sleep
C．the time of waking up
D．the time of going to bed
4．From the passage we can learn that ______.
A．Zeo will have a direct effect on users' lifestyles
B．Zeo will have better results if users make proper changes
C．Zeo is reported to be well received in Australia
D．Zeo can now be bought either in stores or online
参考答案与解析
课时作业(四十一)
Unit 21 A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：B
2．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：C
3．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：C
4．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：B
5．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：B
6．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 one's best处于最佳状态。
答案：A
7．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：A
8．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：C
9．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：D
10．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：D
11．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：C
12．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：D
14．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：A
15．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：D
2．解析：由other things可知，是其他事情吸引了我的注意力。
答案：A
3．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：B
4．解析：devote time to sth.是固定搭配，符合题意。
答案：C
5．解析：下文but
he would always let me know when...说明正常情况下如果我对父亲冷漠，他总是保持沉默。
答案：A
6．解析：in case“如果”，表假设，符合语境。unless“除非”；so that“以至于”；as if“好像”，均不符合语境。
答案：B
7．解析：根据下文两个朋友看电影却没有邀请我，可知我情绪低落。
答案：A
9．解析：根据文章首句，父亲喜爱骑车，可推知这里是邀请我骑车。
答案：A
10．解析：联系语境，作者当时情绪低落，很不耐烦，所以shout最符合语境。whisper“低声说”；warn“警告”；announce“宣布”，均不符合语境。
答案：D
11．解析：根据第二段第一句It was a Sunday morning可知答案。
答案：B
12．解析：inform sb.that...“告知某人……”。
答案：C
13．解析：句意：过了好几天他才终于能说话。eventually“最终”。其余三项明显不符合语境。
答案：A
14．解析：根据父亲当时的身体状况，作者应是轻轻地握住父亲的手，这是因为害怕伤到父亲。A.“厌倦于”；C.“知道”；D.搭配不对，应是be sorry for...。
答案：B
15．解析：上文父亲岔开作者道歉的话题，所以作者这里是作解释，I mean...意为“我是指……”。
答案：D
16．解析：父亲原谅作者的过错，说自己不记得了。
答案：C
17．解析：当时父亲大病初愈，身体虚弱，但还是勉强笑了一下。manage与后面weak相照应。
答案：D
18．解析：根据上文thoughtless remark可知，作者并不是真的想让父亲不管自己，故用never。
答案：B
19．解析：根据下文to choose our words和上文作者伤害父亲的话leave me alone可推知答案。
答案：D
20．解析：我们都有能力选择好自己的言辞。power“力量，能力”。
答案：C
三、阅读理解
解题导语：这是一则科普说明文，美国三名大学生研制出一种仪器，能够记录睡眠数据，从而提醒主人规律生活，提高睡眠质量。
1．解析：细节理解题。依据第二段的内容和第三段首句可知，他们想象该仪器的目的是提高睡眠质量。
答案：D
2．解析：细节理解题。依据第四段的内容可知，D项是Zeo的工作程序。
答案：D
3．解析：细节理解题。依据第四段的最后一句可知，Zeo提供的记录显示的是睡眠质量如何。
答案：A