参考作文：Take care of the environment

The environment is very important to us. But now the world’s environment is getting worse and worse. Many people are very worried about it. I think we should do something to protect our environment. First, we mustn’t pollute it. We shouldn’t cut down trees, spit in public places, draw on public walls or throw litter about. We should also do something to improve the environment. We should plant more trees, stop people from polluting the environment, collect waste paper for recycling and so on. If we all do these , our environment will become more and more beautiful. Taking care of the environment is our duty. We have only one earth. So we should protect it.