2、环境保护/生态平衡

As we know, pollution does great harm to human beings.

It is very important to deal with the rubbish in cities.

Rubbish should be treated properly.

With the development of agriculture and industry, more and more waste is produced.

Now more and more people have come to realize how serious this problem is.

Laws have been passed to protect our environment.

A large quantity of trees should be planted.

We must make good use of water and avoid polluting it.

Our government is doing its best to take measures to fight against pollution.

Something must be done to prevent factories from polluting the air.

In my opinion, the best solution to this problem is to carry out the system of praise and punishment firmly.

It is glorious to take care of the environments while it is shameful to pollute them.

It is generally agreed that civilized people should love and protect wild animals.

Thus more effective measures should be taken immediately to protect wild animals.

Only by this means can we stop the air from being polluted.

Only in this way can we enjoy fresh air and live a healthy life.

To protect ourselves, we must keep the balance of nature.

We should take good care of the forest and plant more trees instead of cutting down so as to improve our living conditions.