There are many kinds of pollution.They are noise pollution,water pollution and air pollution.Air pollution is the most serious kind of pollution.It is not only harmful to people,but also harmful to animals and plants.We can use paper bags instead of plastic ones to fight pollution.People can't throw dirty things into river.We can plant more trees and make streets less noisy.We can't talk loudly in public places.l think everyone must help to fight pollution.
Electricity is invisible,but it is very important to us.Many things in our homes are run by electricity such as computers,televisions,radios and so on.Our life cannot go on without it.But do you know how to save electricity?l think we mustn't turn on more lights than we need.We must close all the windows when we are using the air conditioners.ln these ways ,l think our life will better than before.
这两篇作文我写过是以前老师指导我们写的.