精选优质文档-倾情为你奉上一、关于环保的英语演讲稿We have only one earth. But now,the environment becomes worse and worse. As you know,theres no enough clean water for people. So many of them lose their lives because of water. In a lot of countries, people have to cut trees for living. So theres nothing to keep water from running away. Also we have polluted the land, the river and the air. So we have to face more and more floods and droughts . Its time that we must do something useful to protect our e