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Save Earth 　　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. It’s very cruel. People are polluting the land, the water and the air. People must stop doing this. We must save the earth.

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部分单词解释

them 来自五年级上学期	他们
earth 来自六年级上学期	地球
their 来自五年级上学期	他们的
white 来自一年级上学期	白色
wonderful 来自五年级下学期	精彩的
pollution 来自六年级上学期	污染
green 来自一年级上学期	绿色
people 来自三年级下学期	人
blue 来自一年级上学期	蓝色
interesting 来自三年级下学期	有趣的

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