1. 听录音，写单词，补全短文。

The Earth is a place. There are , rivers, mountains and . Some parts of the Earth are hot, but some parts are very cold. There are many kinds of and plants on the Earth. Some are , but some are small. Today some parts of the Earth are very . People throw into the rivers. Some people cut down too many trees. They pollute the , the water and the . It is important for us to the Earth.

The earth is a beautiful place.<br />There are forests, rivers, mountains and oceans.<br />Some parts of the earth are hot, but some parts are very cold.<br />There are many kinds of animals and plants on the earth.<br />Some are large, but some are small.<br />Today, some parts of the earth are very dirty.<br />People throw rubbish into the rivers.<br />Some people cut down too many trees.<br />They pollute the land, the water and the air.<br />It is important for us to save the earth.<br />The earth is a beautiful place.<br />There are forests, rivers, mountains and oceans.<br />Some parts of the earth are hot,<br />but some parts are very cold.<br />There are many kinds of animals and plants on the earth.<br />Some are large, but some are small.<br />Today, some parts of the earth are very dirty.<br />People throw rubbish into the rivers.<br />Some people cut down too many trees.<br />They pollute the land, the water and the air.<br />It is important for us to save the earth.