急求一份关于环保的英语演讲这星期天就要比赛了~""希望之星""一定要是关于环保的,而且时间要控制在一分钟之内（千万别太难,没时间去背）.

We live in the world every day.We eat food,drink water,wear clothes,watch TV,use computers and so on.We are producing waste every moment.Generally speaking,there are four sorts of waste.They are mater...