our earth our home（这篇可以参考：
We all live in the earth.The earth is our home.We must take care of it.It gives us the blue sky,clean air and green trees.It gives us the best environment.If we harm it,it will be angry.And then we will have a terrible end.
It’s our duty to protect our environment.So we must plant more trees,protect the flowers and the trees,reduce the white pollution,not throw old batteries in the river and etc.
Tanking care of our environment is very important.It’s our duty to keep our environment clean and tidy.If everyone makes a contribution to protect the environment,the earth will become much more beautiful.
