We are now living in a common home. That is the earth. She provides us with enough food, enough water and enough living room. So we must do everything to protect her. There are lots of big or small, red or green, beautiful gardens around us .But there are still some other lands bare of grasses or trees on the earth.

Some people may ask why not led all lands covered with trees, flowers and grasses? Why not prevent the lands from being desert? Why not prevent the air from being polluted? And why not prevent the earth from being poisoned? Yes! Our environment is being polluted faster than nature and man’s efforts can prevent. Time is ing us more people, and more people will ing us more industry. So many trees will be cut down, and more large cities will be set up. Lots of waste material, in return, is produced and harms the environment. So some experts declare that the balance of nature is being destroyed. The survival of man is in danger.

We feel really sad about it. What can we do to solve this problem? We must forbid cutting down trees and forbid killing animals and pouring waste water into rivers and so on. We’ll never destroy the balance of nature. Let’s get along well with all animals. Let the trees, flowers and grasses come back to our home. Because we have only one home --- the earth.

我们现在生活在一个共同的家。那就是地球。她为我们提供了足够的食物，足够的水和足够的生存空间。所以我们必须尽可能地去保护她。在我们身边有很多大大小小，色彩鲜艳的美丽花园。但是地球上仍然有一些土地很荒芜。

有些人会问为什么不把所有土地都种上树，花和草?为什么不阻止土地沙漠化?为什么不阻止空气被污染?为什么不阻止地球被毒害?是的!我们的环境受污染的速度比自然和人的努力防止要快得多。时间带给我们更多的人，更多的人会给我们带来更多的工业。所以很多的树木会被砍伐，更多的大型城市会被设立。作为回报，大量的垃圾会产生从而危害环境。所以一些专家们宣称自然界的平衡正在被破坏。人类的生存很危险。我们对此感到很难过。

我们能做什么来解决这个问题?我们必须禁止砍伐树木，禁止捕杀动物，禁止把废水倒入河流等。我们再也不能破坏自然的平衡。我们应当和多有的动物和谐相处。让树，花和草回到我们的家园。因为我们只有一个家园——地球。