全新版大学英语综合教程第二版第三册课后习题答案-第三单元

1Book 3 Unit 3 SecurityText AContent Questions1. No.2. No.3. It has been replaced by an era when people employ various secuirty devices at home.4. Small notices announcing that the premises are under surveillance by this security force or that guard company.5. The insurance company tries to impress the public that it will ensure your safety by paying for your losses.6. An atmosphere of fear and distrust.7. Because they feel threatened and want to keep outsides away.8. No. They are by now the most sophisticated of security sites.9. It is a way to hold the terrorists, real and imagined, at bay.10. To tell whether their friend or client is telling lies.11. All is done in the name of “security”. But according to the author, America, with all this “security”, is perhaps the most insecure nation in the history of civilization.12. We may have locked the evils out, but in so doing we have locked ourselves in.Text Organization1. Parts Paragraphs Main IdeasPart One Paras 1-3 In America, the era of leaving the front door on the latch has drawn to a close.Part Two Paras 4-15 A new atmosphere of fear and distrust has crept into every aspect of daily life. As a result, security de vices, in varied forms, are put to use.Part Three Paras 16-19 By locking our fears out, we become prisoners of our own making.2.1) Doors are not left unlocked either in cities or in rural areas.2) Dead-bolt locks, security chains, electronic alarm systems and trip wires are widely in use.3) Suburban families have steel bars built in sliding glass doors.4) Small notices warning against burglary are commonly seen pasted on the windows of the most pleasant of homes.5) Access cards are required of those who work with medium to large-size companies.6) Airport security uses electronic X-ray equipment to guard against terrorism.7) Businessmen employ new machines linked up to their telephone to help determine whether the caller is telling lies or not.Suburban housewives wear rape whistles on their key chains. - 2 - Language Sense EnhancementI. 1) electronic 2) hooked up to3) suburban 4) built in5) uncommon 6) announcing 7) survaillance 8) symbol9) featured 10) attached toLanguage FocusVocabulary1. 2) by a small margin4) closed up6) paste8) sideways10) universal12) Bathed in2) looked back on 4) fit into 6) lies in 8) stand for3. 1) A certain gene which is likely to make people vulnerable to asthma has been found byresearchers at the Department of Clinical Medicine in Oxford.2) A wardrobe with mirrored doors had to be built in so as to make their small bedroom look larger.3) The NBC show's opening shots feature the space shuttle Challenger blowing up in January 1986killing all seven crew.4) When the teacher threatened to keep the pupils in after school they were quieted at once.5) Energy difficulties are a major barrier to the country's economic growth due to the fact that imported oil has absorbed 40% of its foreign exchange / because imported oil has absorbed 40% of its foreign exchange.4. 1) Jacob looked back on his summer holidays spent on the Big Island of Hawaii with itsbeautiful landscape and tranquil atmosphere as a rare escape from the madness of urban life. 2) Learning in the information era is really convenient and efficient. With your computer hooked up to the internet, you can easily obtain the electronic resources relevant to your research.3) Detectives, who believe more than one person is behind the constant attacks in the suburb, are using a sophisticated computer system to analyze specific behavior and situations. However, they are also aware that they shouldnt rely too much on computer because it may make errors at times.II. Collocation1. away 2. inside/in3. forward/through 4. backI. 1. 1) threathens3) civilize5) wandered7) without so much as 9) hook up to11) chart2. 1) narrowed down3) cut off5) wear (the other) down7) put up - 3 - 5. off 6. home7. back, down 8. in, outIII. Usage1. Internet is not such an unusual word as it used to be.2. Most men do not look unattractive in them.3. Wealthy as she is, she is not unconcerned by her sudden unemployment.4. This claim is not unrealistic in view of a sharp decrease in the city's violent crimes.5. His poor health is not unrelated to his unhealthy way of life.Comprehensive ExercisesI. Cloze1.1. Statistics 2. rural3. era 4. stood for5. on the latch 6. vulnerable7. barriers 8. electronic 9. reflection 10.civilized2.1. tougher 2. liable3. shift 4. electric5. cautious 6. sophisticated7. thieves 8. break9. chances 10. signsII. Translation1.1). The Internet is changing the way people live, no matter whether they are in urban or rural areas.2). Medium-sized and small companies are more vulnerable to the threat of the global economic crisis than large ones.3). With regard to our term papers, the professor asked u