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全新版大学英语(第二版)综合教程4

Unit 2 Smart Cars

Text A Smart Cars课后习题答案

P.37Content Questions 课文内容理解

1. How important was the automobile industry in the twentieth century?

(Para.2) The automobile industry ranked as among the most lucrative and powerful industries of the twentieth century.

2. What will happen to cars and roads in the twenty-first century?

(Para.3) Cars and roads will be revolutionized in the twenty-first century.

3. Why does the author say the key to tomorrow's "smart cars" will be sensors?

(Para.3) Because it is sensors that will enable vehicles and roads to be able to see, hear, feel, smell, talk, and act.

4. How would sensors help reduce traffic fatalities?

(Para.4) Sensors can sense if a driver is drunk and refuse to start up the engine.

5. What is the function of the radars hidden in the bumpers?

(Para.5) The radars hidden in the bumpers can scan for nearby cars. If you make a serious driving mistake the computer will sound an immediate warning.

6. How will a smart car alert a driver who feels drowsy?

(Para.6) If the driver's eyelids close for a certain length of time and his or her driving becomes erratic, a computer in the dashboard could alert the driver.

7. What makes it possible for smart cars to determine their approximate location?

(Para.7) GPS makes it possible for smart cars to determine their location on the earth to within about a hundred feet.

8. What are the prospects for applications of GPS?

(Para.8) With the price of microchips dropping so drastically, future applications of GPS are virtually limitless.

9. What is "telematics" expected to achieve in increasing the efficiency and safety of highway transportation?

(Para.11) It is expected to put smart cars on smart highways.

10. What are traffic engineers doing on Interstate 15 close to San Diego?

(Para.12) They are installing an MIT-designed system which will introduce the "automated driver".

11. What hopes do promoters of the smart highway have for its future?

(Para.13) They have great hopes for its future. By 2010, telematics may well be incorporated into one of the major highways in the United States. By 2020, telematics could be adopted in thousands of highways in the United States.

12. What are the advantages of smart highways?

(Para.13) Smart highways could be an environmental boon, saving fuel, reducing traffic jams, decreasing air pollution, and serving as an alternative to highway expansion.

P.41-42Vocabulary

I.

1.Tips: 做这类题要知道所给出的单词和题目的意思、区分所给出单词的词性，填空时应注意时态和形式的变化。

1)    expansion （提示：settlement n. 殖民地,居留地,新辟地,开拓地a place where people have come to live and make their homes, especially where few or no people lived before）

2)    automated （提示：automated 自动化的与human相对，assembly line 生产流水线）

3)    vapor（提示：humidity n. 温度）

4)    take control of （提示：local American Red Cross chapter 当地的美国红十字会分会）

5)    hazards（提示：traffic control交通管制）

6)    satellite（提示：moon 月亮，行星的卫星 man-made moons 人造卫星）

7)    vibrated（提示：vibrate应与crashed时态一致）

8)    magnetic（提示：magnetic field磁场）

9)    bunched（提示：赛跑开始时，比赛选手在跑道上挤在一堆，但不一会儿，有一些人就冲到了前面，把其他人甩在其后。）

10)  in the air（提示：air traffic controller空中交通管制员，in the air与on the ground相对）

11)   got/was stuck in（提示：rewind 倒带， tape recorder磁带录音机）

12)  approximately

P.46Comprehensive Exercises

I. Cloze

1. Text-related 

Tips: 这是与课文内容相关的完型填空题，需要学生在了解课文大意并熟悉P.41 Words and Phrases to Drill框里的词义的基础之上完成此练习。

Hello. Welcome to your new car. I am your onboard 1) computerized driving system. From the moment you 2) start up the car, I will 3) be poised to help you. It is my job to 4) alert you to any 5) hazards that may occur on the road. When you find the driving 6) monotonous and want to relax, I can 7) take control of the car and 8) steer it in your place. I will guide you from one 9) lane to another and make sure you arrive at your destination safe and sound. If a car in front of you slows down suddenly, I will 10) decrease your speed. And I will 11) calculate the data provided by the GPS system and choose the less busy routes so as to 12) eliminate your worries of 13) getting stuck in a traffic jam. When you want to convert back from automatic control to manual control, that is easy. Just press the right button 14) mounted on the steering column. But do remember not to take any alcoholic drinks. If I 15) detect the presence of alcohol in the 16) vapor of your breath, I will stop the car whether you like it or not.

解析：

（4）填alert, 注意alert sb to sth这个搭配；

（14）填mounted，过去分词作后置定语。