Pollution is becoming more and more serious. I.ook at the batteries all around us. We all know that used batteries are bad for environment. We shouldn't throw them away. We should recycle them. Look at the plastic bags all around us. We all know plastic bags never rot. When we do shopping, we can use paper bags to store goods instead of plastic bags. 　　As a matter of fact, we can do a lot to prevent the pollution.Let's do something to bring pollution under control.