大学英语四unit2 第四次课

课程教案

Unit 2 Smart Cars

I. Warming-up

Proverbs and Quotations

1. Activity is the only road to knowledge.

行动是通往知识的唯一道路。

2.Love is ever the beginning of knowledge as fire is of light.

知识总是从爱好开始，犹如光总是从火开始一样。

3.Knowledge is a treasure, but practice is the key to it.

知识是一座宝库，而实践是开启宝库的钥匙。

4.The foundation of knowledge must be laid by reading. General principles must come from books, which, however, must be brought to the test of real life.

—Samuel Johnson, British writer

读书是积累知识的基础。基本原理来源于书本，但须经实际生活的检验。

—英国作家S. 约翰逊

5. Imagination is more important than knowledge.

—Albert Einstein, American Scientist

想象力比知识更为重要。

—美国科学家 A. 爱因斯坦

II.Review

Useful Expressions

计算机革命the computer revolution

制造业manufacturing industry

长途司机long-distance driver

被严重低估be grossly underestimated

威胁生命的重大隐患life-threatening hazard

解决问题cure the problem

积极的影响 a positive impact

与无线电信号调谐be tuned to radio signals

在任何一个特定时间at any given time

量子理论法则the laws of the quantum theory

精确的频率precise frequency

发出无线电信号send out a radio signal

换算出be converted into

导航能力navigational capability

几乎无限virtually limitless

手杖walking sticks

遥控remote control

潜在的应用potential use / application

要求call for

完全控制take complete control of

被编成组be bunched into groups

一齐行驶travel in union

对环保有利environmental boon

III. Exercises

1. V ocabulary

1)Before Anglo-American westward expansion, North America had been shaped by many other cultures.

2)We are confident that the introduction of a(n) automated assembly line will eliminate most of today’s human errors.

3)Warmer air is able to hold more water vapor than cold air and so has a higher humidity.

4)In most communities in the United States, the local American Red Cross chapter has been authorized to take control of certain local public buildings in times of emergency.

5)Traffic control establishes a set of rules and instructions that drivers, pilots, train engineers, and ship captains rely on to avoid collisions(碰撞) and other hazards.

6)Since the launching of the first artificial satellite in 1957, thousands of "man-made moons" have been rocketed into the Earth's orbit, each designed to serve a specific purpose or mission.

7)The thunder crashed so near the house that the glass vibrated in the windows, and some books, which had sat on the windowsill fell to the floor.

8) Radio telescopes have provided valuable information about other stars and about the magnetic fields of other planets in our solar system, especially Jupiter's.

9)At the beginning of the race, the runners were bunched together on the track, but later some of them got ahead and left the others behind.

10)From the control tower, air traffic controllers coordinate aircraft movement both in the air and on the ground.

11) Further troubles developed in October 1995 when the tape recorder in the orbiter Galileo got/was stuck in the "rewind" position for 15 hours, wearing out a section of the tape.

12) In 1978, at the beginning of the reform period, approximately11,000 Chinese students went abroad to pursue further studies.

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 firm

4) … the prototype of a new model before they set up a factory to make the cars. 5) … are co rrelated in all racial groups 4.

1) the application, remote, has turned into a reality, are poised to 2) that vibrate, can detect, fr equency 3) lanes, are mounted in, alert a, hazard

山东协和学院讲稿

II. Word Formation

Clipped Words:

kilo kilogram ； memo memorandum； gym gymnasium ； lib liberation ；doc doctor ； vet veterinarian； prep preparatory ； auto automobile； flu influ enza Blends:

Medicare medical care ； email electronic mail； comsat communications satellite ；newscast news broadcast； skyjack sky hijack ； Eurodollar European dollar； brun ch breakfast and lunch ； telecast television broadcast ；Oxbridge Oxford and Cambridge III. Usage

1. swimming pool

2. drawing board

3. enriched Middle English

4. disturbing change

5. full y developed prototype

6. Canned foods

7. working population

8. puzzling differences Translation

Sentences translation：

1 空气中有一种不同寻常的寂静，只有远处响着大炮的声音。

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

2 在某些非洲国家城市的扩展已引起生活水平相当大的下降和社会问题的增多。

The expansion of urban areas in some African countries has been causing a significant fall in l iving standards and an increase in social problems.

3 研究表明大气中二氧化碳的含量与全球温度密切相关。

The research shows that atmospheric carbon dioxide levels are closely correlated with global t emperatures.

4 最近公共汽车的车辆行驶频率已有改善，从15分钟缩短到 20分钟一班。

The frequency of the bus service has been improved from 15 to 12 minute recently.

5 那位跳水运动员立在跳水板边沿，只等教练发出信号便会立刻跳下。

The diver stood on the edge of the diving board，poised to jump at the signal from the coach. Passage translation：

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, especi ally 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 acc idents. 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 si gnals sent out from orbiting satellites and greatly reduce your chances of getting stuck in traffi c jams.