Unit3单元测试卷答案

大学英语综合教程3单元检测题答案

Unit 3 Security

I. Compound Dictation(2x10)

Listen and fill in the blanks with the missing words.

Planning for Safer Buildings

Experts are beginning to study ways to(1) secure large buildings against (2)terrorist attacks. They are reacting to the attacks that (3)destroyed the World Trade Center buildings in New York September eleventh.

The American Institute of Steel Construction has created a working group of experts to(4) investigate the reasons the buildings fell. The A-I-S-C is the organization(5) responsible for developing the rules for the design of (6)steel buildings in the United States. (7) Information developed by the working group will help A-I-S-C decide if the design rules should be changed.

The south World Trade Center building fell fifty-six minutes after a(8) passenger plane crashed into it. The north building fell about one hundred minutes after a (9) similar crash. Each building was four hundred ten meters tall. Experts say the buildings could not (10)survive the extremely hot fires caused by the airplane fuel.

II. Translate the phrase into English(2x20)

1.（门）关着但没上锁on the latch (para.1)

2.带钥匙carry keys(para.1)

3.（暂时）关闭close up(para.1)

4.巡逻严密的城区街道well-patrolled urban streets([p?'tr?ul])(para.3)

5.据称很宁静的地区the allegedly tranquil areas(para.3)[?'led??dl?]['tr??kw?l]

6. …的时代结束了the era of …is over(para.3)

7.电子报警系统electronic alarm systems(para.4)

8. 连接到hook up to[huk](para.4)

9.内置，嵌入build in(para.4)

10. 处于监控下under surveillance [s?:'veil?ns](para.5)

11.设置路障put up barricades[,b?ri'keid](para.8)

12. 保安security guards(para.10)

13.不让靠近hold/keep (sb.) at bay [bei] (para.13)

14. 电子搜查器electronic friskers(para.13)

15.看都不看一眼without so much as a sideways glance(para.13)

16. 代表；表示，象征stand for(para.13)

17.沉浸于，沐浴于be bathed in [bɑ:(?)θ](para.14)

18. 误差率很小/大with/by a small/large margin of error['mɑ:d?i?n](para.15)

19. 在人类文明的历史上in the history of civilized man['sivilaizd] (para.17)

20. 聪明反被聪明误outsmart oneself (para.18)

III. Cloze(2x10)

hooked determined exposing barrier common

switched sophisticated latch discourage both

It is almost impossible to keep a (1)determined burglar out. All you can do is (2)discourage him for a few minutes, thus (3)exposing him to police patrols or those wandering around.(4) Common sense tells us that lighting is a (5)barrier to criminal activity. A light should be fixed in the doorway and (6)switched on at night. Make sure yourself that you don’t leave the door on the (7)latch if you happen to be the last to come in. If you decide to buy a (8)sophisticated electronic alarm system, be sure to ask for its signs and put them up on(9) both windows and doors. In addition you may have it (10)hooked up to a police station.

1

IV Reading(2x10)

Passage one

Questions 1to 5 are based on the following passage. 1-5 ACBDB

Children are a delight. They are our future. (1)But sadly, hiring someone to take care of them while you go to work is getting more expensive by the year.

Earlier this month, it was reported that the cost of enrolling an infant or small kid at a childcare center rose 3% in 2012, faster than the overall cost of living. There are now large strips of the country where daycare for an infant costs more than a tenth of the average married couple's income.

This is not necessarily a new trend, but it is a somewhat puzzling one. The price of professional childcare has been rising since the 1980s. (2)Yet during that time, pay for professional childcare workers has stood still. Actually caregivers make less today, in real terms, than they did in 1990. Considering that labor costs are responsible for up to 80% of a daycare center's expenses, one would expect flat wages to have meant flat prices.

So who's to blame for higher childcare costs?

Childcare is a carefully regulated industry. States lay down rules about how many children each employee is allowed to watch over, the space care centers need per child, and other minute details. (3)And the stricter the regulations, the higher the costs. If it has to hire a caregiver for every two children, it can't really achieve any economics of scale on labor to save money when other expenses go up. (4)In Massachusetts, where childcare centers must hire one teacher for every three infants, the price of care averaged more than $16,000 per year. In Mississippi, where centers must hire one teacher for every five infants, the price of care averaged less than $5,000.

Unfortunately, I don't have all the daycare-center regulations handy. But I wouldn't be surprised if as the rules have become more elaborate, prices have risen. The trade off(交换)might be worth it in some cases; after all, the health and safety of children should probably come before cheap service. (5)But certainly, it doesn't seem to be an accident that some of the cheapest daycare available is in the least regulated South.

1. What problem do parents of small kids have to face?

A) The ever-rising childcare prices. B) The budgeting of family expenses.

C) The balance between work and family. D) The selection of a good daycare center.

2. What does the author feel puzzled about?

A) Why the prices of childcare vary greatly from state to state.

B) Why increased childcare prices have not led to better service.

C) Why childcare workers' pay has not increased with the rising childcare costs.

D) Why there is a severe shortage of childcare professionals in a number of states.

3. What prevents childcare centers from saving money?

A) Steady increase in labor costs. B) Strict government regulations.

C) Lack of support from the state. D) High administrative expenses.

4. Why is the average cost of childcare in Mississippi much lower than in Massachusetts?

A) The overall quality of service is not as good. B) Payments for caregivers there are not as high.

C) Living expenses there are comparatively low. D) Each teacher is allowed to care for more kids.

5. What is the author’s view on daycare service?

A)Caregivers should receive regular professional training. B) Less elaborate rules about children might lower costs. C) It is crucial to strike a balance between quality and costs. D) It is better for different states to learn from each other. elaborate[?'l?b(?)r?t]adj. complicated/complex/detailed/full精心制作/复杂/详尽/煞费苦心的

Passage Two

2

Questions 6 to 10 are based on the following passage. 6-10 DDCBC

(6)Alex Pang's amusing new book The Distraction Addiction addresses those of us who feel panic without a cellphone or computer. And that, he claims, is pretty much all of us. When we're not online, where we spend four months annually, we're engaged in the stressful work of trying to get online.

The Distraction Addiction is not framed as a self-help book. (7)It's a thoughtful examination of the dangers of our computing overdose and a historical overview of how technological advances change consciousness. A “professional futurist”, Pang urges an ap proach which he calls “contemplative (沉思的) computing.” He asks that you pay full attention to “how your mind and body interact with computers and how your attention and creativity are influenced by technology.”

Pang's first job is to free you from the common misconception that doing two things at once allows you to get more done. (8)What is commonly called multitasking is, in fact, switch-tasking, and its harmful effects on productivity are well documented. Pang doesn't advocate returning to a pre-Internet world. Instead, he asks you to “take a more ecological (生态的) view of your relationships with technologies and look for ways devices or media may be making specific tasks easier or faster but at the same time making your work and life har der.”

The Distraction Addiction is particularly fascinating on how technologies have changed certain fields of labor—often for the worse. For architects, (9)computer-aided design has become essential but in some ways has cheapened the design process. As one architect puts it,(9)“Architecture is first and foremost about thinking...and drawing is a more productive way of thinking” than computer-aided design. Somewhat less amusing are Pang's solutions for kicking the Internet habit. (10)He recommends the usual behavior-modification approaches, familiar to anyone who has completed a quit-smoking program. Keep logs to study your online profile and decide what you can knock out, download a program like Freedom that locks you out of your browser, or take a “digital Sabbath (安息日)”: “Unless you're a reporter or emergency-department doctor, you'll discover that your world doesn't fall apart when you go offline.”

6. Alex Pang's new book is aimed for readers who________.

A) find their work online too stressful B) go online mainly for entertainment

C) are fearful about using the cellphone or computer D) can hardly tear themselves away from the Internet

tear oneself away from 舍不得离开,爱不释手

7. What does Alex Pang try to do in his new book?

A) Offer advice on how to use the Internet effectively. B) Warn people of the possible dangers of internet use.

C) Predict the trend of future technological development. D) Examine the influence of technology on the human mind.

8. What is the common view on multitasking?

A) It enables people to work more efficiently. B) It is a way quite similar to switch-tasking.

C) It makes people's work and life even harder. D) It distracts people's attention from useful work.

9. What does the author think of computer-aided design?

A) It considerably cuts down the cost of building design. B) It somewhat restrains architects' productive thinking. C) It is indispensable in architects' work process. D) It can free architects from laborious drawing.

restrain /r??stre?n/vt. control/stop/prevent抑/控制；约束；制止

10. What is Ales Pang's recommendation for Internet users?

A) They use the Internet as little as possible. B) They keep a record of their computer use time.

C) They exercise self-control over their time online. D) They entertain themselves online on off-days only.

3

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p p （C ）{}22≤<-p p （D ）{}2>p p 12. 若用()A C 表示非空集合A 中元素的个数,定义()()()()()()()() ???<-≥-=*B C A C A C B C B C A C B C A C B A ,,,已知{}2,1=A ,()(){} 0222=+++=ax x ax x x B ,且1=*B A ,设实数a 的所有可能取值构成集合S ,则()=S C 【 】 （A ）4 （B ）3 （C ）2 （D ）1

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