文档介绍：1. My View on Keeping Pets
With the rise of people’s living standard(生活水平), keeping pets is becoming a fashionable cnto rivers and lakes（废水不断注入江湖）; as a result, many water species are dying out.（死光） Furthermore, everywhere we go today, we can find rubbish carelessly disposed. Pollution is, in fact, threatening our existences.
People are showing a real concern over the problem（表示对此问题的真正关注）. For example, there is an increasingly loud voice from the public calling far firm action against pollution. Scientists have warned that unless effective solutions are worked out, the problem of pollution will eventually get out of hand. Indeed, the earth is our home and we have the duty to take care of it for ourselves and for our later generations.
Fortunately, measures are being taken to cope with the situation. First, many new laws have been passed to place strict control over industrial pollution（严格控制工业污染）. Secondly, a large-scale program is now under way to educate people to be responsible citizens in fighting pollution. Finally, the government has started building various facilities such as sewage treatment（污水处理） plants and has encouraged scientists to work out more and better ways to reduce pollution it is hoped that all these measures will be effective and bring back a healthful world.
3. How to Solve the Problem of Heavy Traffic
In many big cities, people suffer muc