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?
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.
Many wild animals, birds and insects lose their homes. people are killing animals for their food and their skins. Its very cruel. people are polluting the land, the water and the air. people must stop doing this. We must save the earth.
这是一个地球。绿色的部分是陆地，蓝色的部分是海洋，白色的部分是云。我们的地球非常美丽和有趣。有河流、小溪、大海和湖泊，有山丘和山脉，有树林、丛林和森林。那里有许多国家和城市，有许多人居住在里面。你发现地球的神奇了吗?
许多年前,地球是非常干净的。但现在地球受到了很多污染。有空气污染、土地污染和水污染。人们在不断的砍伐森林。
许多野生动物、鸟类和昆虫都失去了家园。人们猎杀动物为了食用它们和获得它们的皮。这是非常残忍的行为。人们正在污染土地、水和空气。人们必须停止这样的行为，我们必须拯救地球。