21. Ladies and gentlemen,

Yesterday our teacher of English asked me to say something about pollution. Now, I give you my views on this vital question.As a matter of fact, the effects of industrial pollution are well known to everyone --- polluted air, polluted water and polluted earth. Though a great deal is already being done to control these effects, the problem of pollution is still serious. Continued population increase, smog and chemical waste produced by factories and cars, not only threatens to exhaust our resources, but also pollutes our environment. We do need clean air, safe water and our children’s health.In my opinion, to solve the problem of pollution, everyone must refrain from polluting our environment. We should know that this is the duty of every individual, not that the government alone.

20. Dear Tom,　　

　I felt terribly sorry to learn that both your parents had been killed in the September 11th Incident. In this incident the World Trade Centre, which used to be one of the tallest buildings in the world, was completely destroyed and thousands of people lost their lives. I’m very angry about the terrorist activities.　　 We are against all forms of terrorist activities and support the war against the terrorism.　 　Don’t be too sad. Don’t lose heart. After all, the majority of the people in the world love peace. I hope you can recover from the sadness as soon as possible. Be sure to take good care of yourself.

Best wishes.　　　　　　　　　　　　　　　　　　　　　 　　　Yours,　　 Xiao Fang

19.Attention, please!

I’m going to give you a summary of today’s discussion about whether we would go online in our spare time.Most students think they (we) can go online as much as possible in our spare time because we are free then. Through the Internet, they can gain plenty of the newest knowledge and the latest news at home and abroad. What’s more, network offers them(us) a convenient way to communicate with each other. The Internet makes their lives outside class colourful and various.On the other hand, a few students partly agree to this idea. Going online is part of our daily life. They suggest a time limit. They’ve found that more students are playing computer games instead of studying their lessons. There’re few students who are often absent from school for days.

18.　　 About the discussion we’ve had about whether China should devote major efforts to developing car industry, opinions are divided on the question.　　 60% of the students think China should fully develop car industry. They believe this will speed up the development of the national economy. More workers will be employed. With cars the people’s life quality will be raised. They will save time and be more convenient in their life and work.　　 On the other hand, 40% of them think China should control its car industry development. Otherwise, the city traffic will be even heavier and more traffic accidents will take place. At the same time, more land will be used for the new roads. What is more, air and noise pollution will become more serious.

17.　　　　 Students Like Optional Courses

This term our school had offered more than 10 optional courses, from which students can choose. The courses are given from 3:30 to 5:00 every Tuesday afternoon.Students take great interest in the optional courses. Their favourites are computer, spoken English, arts and so on. They say they have got a great deal of practice and they have learned a lot that is not taught in textbooks. However, students hope more optional courses will be offered while their homework should be reduced. They suggest more trips and visits should be organized so that they can learn more about what is going on outside school.

16. Dear Mr. Headmaster,　　

　I am writing this letter to tell you something about our canteen.　　 There are many kinds of food in our canteen, and generally they are cheap. Some food is delicious. The dining environment has been improved, with the walls painted and some pictures posted up. The students are satisfied with the new look.　　 But students are not given a proper helping of every dish. Also, as the number of the students continues to increase, there is not enough space for us to have meals there. As a result, many of us go out to have meals.　 All in all, there is still much room for improvement in food quality and service.

　　　 Best regards,

　　　　　　 Sincerely yours, Li Ming

15.Hi, Jason,

You asked me about Yao Ming. Here is something I got when I searched the websites at home.Yao Ming, who is now 2.26 metres tall and 134kg in weight, was born in Shanghai on the 12th of September,1980. It is said he likes meat most and his favourite colour is blue. The man he respects most is late Premier Zhou Enlai and the one he believes in most is himself.He joined Shanghai basketball team in 1997 and became a member of China national team Shanghai won the champion of CBA and he was among the top players in the team. In the same year he went to the US and became Number One Overall in the NBA draft, which helped him join Houston Rockets. After many matches as well as struggles he now feels a little tired. Up to now he says he still hasn’t got any further definite plan.

14. Fire causes

Fire, one of the most terrible killers in out modern society, is mainly caused by smokers, as can be seen from the graph.In 2002, thousands of fires happened in China. About 50% of them were caused by smokers who left cigarette-ends everywhere. 30% were caused by defective insulation and 20% by children playing with matches. No matter what type of the fire was, there was one thing in common: carelessness.We should warn children of the dangers of playing with matches. Workers should know the importance of good insulation to people’s lives. Smoking should not be in public places.

13.　　　　 Pollution　　

A chemical factory lies near my home.

The manager was criticized by the government because the pollution had harmed people’s health, but he paid no attention. Then the factory was forced to stop production and the manager said angrily, “ Is there any fact that we have harmed people’s health? In fact, we haven’t.” Just then, a doctor came, with the result of the medical exam of the manager, saying the manager was suffering a lung cancer. It is very clear that the population has harmed not only to people’s health but also the manager himself. He was realized the importance of keeping air clean.

12. Dear Editor,

　 I’m writing to tell you about our discussion we had on the afternoon of last Wednesday about the good and bad sides of setting off firecrackers during the Spring Festival. 20 boy and 20 girl students attended the discussion. As a result, 40% of them believe that setting off firecrackers certainly adds pleasure and joy to the festival. Therefore, it is a wonderful tradition. But another 40% of the students think that setting off firecrackers causes air and noise pollution, and what’s more, it sometimes causes terrible accidents to us and to our property. The other 20 % have never thought about it or don’t care a bit. In my opinion, ……　　　　　　　　　　　　　　　　　　　　　　　　　 Yours truly,　　　　　　　　　　　　　　　　　　　 　　　　　　　Li Hua