This is the earth. The green part is land. The blue part is sea. The white part is clouds. Our earth is very beautiful and interesting. There are rivers, streams, seas and lakes. There are hills and mountains. There are woods, jungles and forests. There are many countries and cities. There are many people live in them. Do you think the earth is very wonderful?

这个是地球。绿色部分是陆地，蓝色部分是海洋，白色部分是云朵。我们的地球非常漂亮和有趣。这里有河流，小溪，大海和湖泊;有丘陵，有山脉;有树林，丛林和森林;有很多农村和城市，很多人住在这里。你觉得地球是不是奇妙极了?

Many years ago, the earth is very clean. But nowadays there is much pollution on the earth. There is air pollution, land pollution and water pollution.People are cutting down the forests.

很多年前，地球是非常干净的。但是现在，地球上污染非常严重。有空气污染，陆地污染和水污染。人们还在不断地伐树。

Many wild animals, birds and insects lose their homes. People are killing animals for their food . It's very cruel. People are polluting the land, the water and the air. People must stop doing this. We must save the earth.

很多野生动物，鸟类和昆虫都失去了它们的家园。人类杀死动物烹食。真是残忍。人类污染了陆地，水和空气。他们应该停止这样做，我们必须拯救地球。