1、Unit 1A larger and larger part of society is expressing its concern about environmental protection. Active in their concern, teachers and students hold specific meetings to discuss environmental protection. Also, city planners take environmental problems into serious consideration. And, though reduc
2、ing pollution can be expensive, factories often take every possible measure to do their part. Many people are concerned and active because air and water pollution affects everyone and makes it difficult for cities to survive and businesses to make a profit.Unit 2Computers, just like any new technolo
3、gy, have a negative side. As more and more computers are used in production lines, many jobs are being taken over by computer-controlled machines. As a result, many workers are finding themselves jobless. This constitutes a threat to social security. Another problem is computer crimes. For example,
4、some people are finding ways to break into the bank computer systems and transfer large sums of money to their own accounts. There have been many reports like this. One more negative effect of computers is that they bring about health problems. Sitting in front of computers all day undoubtedly affec
5、ts peoples health. Back pain, wrist pain, failing eyesight, to name only a few.Unit 3Many people place so much emphasis on success that they think any failure is bad. Failure is never pleasant because it hurts people. But in fact it can make positive contribution to our life once we learn how to mak
6、e the best of it. We can learn from a disastrous party how to give a good one. And we can learn from an ill-chosen first house what to look for in a second. Even a total failure can give us fresh ideas or a change of direction. Repeated failures lead to success and prove to be beneficial to us as we
7、 experiment every day to find out the right way of doing things. Unit 4Parents have to save a large amount of money for their children to study abroad. Apart from the international flight, they have to pay for their daily expense, such as food, shelter, entertainment, long-distance telephone calls,
8、and clothing. In addition, the children should have some money ready to cover unexpected expenses.Unit 5There are many problems for mixed marriages. The number one reason is the cultural differences between the mixed couple, like those in customs and lifestyle. Many people have prejudice against mix
9、ed marriages. They often feel shocked to see people of different races get married and have doubts about such marriages. Whats more, children from mixed marriages tend to be looked down upon or even badly treated by their peers. Mixed marriages face many trials, and as a result, mixed couples have h
10、igher divorce rates than couples of the same race. Unit 6My hometown and my college town have several things in common. First, my hometown is a small town. It has a population of only about 10,000 people. Located in a rural area, it is surrounded by many acres of farmland which are devoted mainly to
11、 growing corn and soybeans. As for my college town, it is small too. Having a population of about 11,000 local residents, it lies in the center of farmland which is used to raise hogs and cattle. Therefore living in my college town makes me feel at home. I enjoy it.Unit 7My friend Jack has become a
12、workaholic. He has too strong a desire to prove himself. According to him, good enough is never good enough. While others want only to finish a few things, he aims to do everything by himself. Also, he is unwilling to spend time with his family, playing with the dog, or going fishing. He would feel
13、guilty if he did so, because he believes that all his time should be spent working. He even wishes that he could have a day of 26 hours or even more. He has become a workaholic whether he likes it or not.Unit 8There has been a sad tendency among youngsters in valuing material things more and more. F
14、or college students, the most popular subjects that they prefer to choose are accounting, computer programming, business, etc. When they graduate from colleges, the jobs they prefer to choose are sales representative, advertisement designing, international business, etc. Fewer and fewer people are c
15、hoosing teaching or social services as their life career.Unit 9Some people think that books are the main source of himam ledge, summaries of what people have acquired in their struggle with nature and society. Moreover, with the rapid development of modern society, book knowledge is updated from tim
16、e to time. For these people, books are everything.However, book knowledge is not everything! Books can never cover all the things and happenings in the world. Book knowledge is only a recording of what has been discovered. There are many mysteries unsolved and we can find no answers from books up to
17、 now. So if one does not try to learn something beyond books, it will be difficult for one to cope with some practical problems.We should develop our ability through practice and observing the world. It is not practical to rely on books only. Unit 10London would not surrender. All the people of Lond
18、on were in the front lines. They put out endless fires from the heavy bombing. They dug quickly in cellars to rescue their friends who had been buried underneath the wreckage. London people prepared to fight on with every possible means until the last Englishman died or the invaders were driven off.
