1、Environmental protection has caused global concern recently.

近来环保已经引起了全球的关注。

2、Keep our mountains green, the water clean, and the sky blue.

使我们的山更绿，水更清，天更蓝。

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

众所周知，污染对人类危害极大。

The terrible pollution have done great harm to us as well as to the surroundings.

严重的污染已经给我们自己还有环境带来了很大的危害。

5、To protect the environment, the government has passed laws to prevent people from throwing rubbish everywhere.

为了保护环境，政府已经通过一些法规来阻止人们乱扔垃圾。

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

唯有这种方式我们才能享受新鲜空气,活得健康。

Everyone should take the responsibility to protect the ecological environment.

保护生态环境，人人有责。