The Earth

The Earth

地球

Chapter 1 What Is the Earth? Where are you right now? You may be in your home. You may be at school. But wherever you are, you are on the Earth.

第一章 地球是什么? 你现在在哪里?你可能在家里。你可能在学校。但无论你身在何处，你都在地球上。

The Earth is a planet. The Earth is round. The Earth is beautiful! It looks like a blue marble from far away.

地球是一个行星。地球是圆的。地球是美丽的!从远处看它就像一个蓝色的弹珠。

Most of the Earth is covered with water. But there is also a lot of land. Take a close look. You can see the United States!

地球的大部分被水覆盖。但也有很多土地。仔细看看。 你可以看到美国!

The Earth is surrounded by a thick blanket of air called the atmosphere. Plants and animals all breathe this air. The Earth is the only planet where living things have been found.

地球被一层厚厚的空气包围着，叫做大气层。植物和动物都呼吸这种空气。地球是唯一发现有生物的星球。

Chapter 2 The Moving Earth You cannot feel it, but the Earth is always moving. It travels around the sun on an invisible path. It takes about one year to go all the way around.

第二章 移动的地球 你感觉不到，但地球一直在运动。它沿着一条看不见的路径绕太阳运行。绕一圈大约需要一年的时间。