全新版大学英语综合教程4第二单元第一篇课文是关于汽车的文章。下面是小编整理的课后答案，欢迎阅读!

　　Unit 2

　　Vocabulary

　　I. 1. 1) expansion 2) automated 3) vapor 4) take control of 5) hazards 6) satellite 7) vibrated 8) magnetic 9) bunched 10) in the air 11) got/was stuckin 12) approximately

　　2. 1) send out 2) stand up for 3) pass for 4) were closing in on 5) starting up 6) went through 7) fill out 8) fall into

　　3. 1)… incorporates all the latest safety features 2) …two trees ten feet apart 3) … awarding lucrative contracts to his construction site 4) … the prototype of a new model before they set up a factory to make the cars. 5) … are correlated in all racial groups

　　4.1) the application, remote, has turned into a reality, are poised to

　　2) that vibrate, can detect, frequency

　　3) lanes, are mounted in, alert a, hazard

　　II. Word Formation

　　Clipped Words Blends

　　Kilo kilogram Medicare medical care Memo memorandum email electronic mail gym gymnasium comsat communications satellite lib liberation newscast news broadcast doc doctor skyjack sky hijack vet veterinarian Eurodollar European dollar prep preparatory brunch breakfast and lunch auto automobile telecast television broadcast flu influenza Oxbridge Oxford and Cambridge

　　III. 1. swimming pool 2. drawing board 3. enriched Middle English 4. disturbing change 5. fully developed prototype 6. Canned foods 7. working population 8. puzzling differences Comprehensive Exercises

　　I. Cloze

　　1. 1) computerized 2) start up 3) be poised to 4) alert 5)hazards 6) monotonous 7) take control of 8) steer 9) lane 10) decrease 11) calculate 12) eliminate 13) getting stuck in 14) mounted 15) detect 16) vapor

　　2. 1) generates 2) related 3) revolutionized 4) enabled 5) opportunities 6) overall 7) manufacturing 8) dependent 9) interact 10) fatalities

　　II. Translation

　　1.1) There was an unusual quietness in the air, except for the sound of artillery in the distance.

　　2) The expansion of urban areas in some African countries has been causing a significant fall in living standards and an increase in social problem.

　　3) The research shows that atmospheric carbon dioxide levels are closely correlated with global temperatures.

　　4) The frequency of the bus service has been improved from 15 to 12 minutes recently

　　5) The diver stood on the edge of the diving board, poised to jump at the signal from the coach.

　　2. Automobiles have, since their invention, revolutionized transportation, changing forever the way people live, travel, and do business. On the other hand, they have brought hazards, especially highway fatalities. However, today the application of computer technology and electronic sensors in designing and manufacturing cars makes it possible to eliminate most of traffic accidents. For example, electronic sensors mounted in your car can detect alcohol vapor in the air and refuse to start up the engine. They can also monitor road conditions by receiving radio signals sent out from orbiting satellites and greatly reduce your chances of getting stuck in traffic jams.