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2017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

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．avoid B．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 after-school ______ 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 all-day 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 a llows people to unlock this black box of sleep，”says Dave Dickinson，a health-care 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

(完整版)北师大版高中英语单词表

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