Hi, children. Let's talk about our planet Earth. What can you see in the sky?
孩子们，你们好。我们来谈谈我们的地球。在天空中你能看到什么？
The sky is often blue in the daytime. We can see the Sun and clouds. We can also see birds and planes.
白天天空常常是蓝色的。我们能看到太阳和云。我们还能看到鸟和飞机。
At night, we can see the Moon and the stars.
夜里，我们能看到月亮和星星。
Very good. But what can we see from outer space? Let's look at some photos from a space station.
很好。不过从外太空我们能看到什么？我们来看看一些来自空间站的照片。
Wow! We can see mountains, oceans and clouds.
哇！我们能看到山、海洋和云。
There are large oceans on Earth. It looks like a big blue marble.
地球上有大片的海洋。它看起来像一颗大大的蓝色弹子。
It's so beautiful. I want to know more about our Mother Earth!
它太美了。我想更多地了解我们的地球母亲！
Hi, I'm Earth. I'm a planet. I travel around the Sun. Satellites travel around me.
嗨，我是地球。我是一颗行星。我绕着太阳转。卫星绕着我转。
The Moon is my neighbour. It travels around me too. People can often see the Moon and the stars at night.
月亮是我的邻居。它也绕着我转。人们夜里常常能看到月亮和星星。
Earth is a planet. It travels around the Sun. The Moon ...
地球是一颗行星。它绕着太阳转。月亮……
Hey, Chen Jie. What are you reading about?
嘿，陈洁。你在读什么？
Mars? What does it say?
火星？它讲了什么？
It talks about things on Mars.
它讲的是火星上的事物。
Wow! Is there any water on Mars?
哇！火星上有水吗？
Yes, there is. There is soil too.
有。还有土壤。
Oh! Are there any aliens?
哦！有外星生物吗？
I don't think so. They say there aren't any living things.
我想没有。他们说那儿没有任何生物。
Look! This is the sunrise on Mars.
看！这是火星上的日出。
How beautiful! I really want to travel to Mars.
多美啊！我真想去火星旅行。
Maybe you can go one day. China put a rover on Mars. We learn more about the “red planet” every year.
也许有一天你能去。中国在火星上放了一个探测器。我们每年都更多地了解这颗“红色星球”。
We explore space in different ways.
我们以不同的方式探索太空。
We can look into space with telescopes.
我们可以用望远镜看太空。
Astronauts travel to space in a spaceship.
航天员乘宇宙飞船去太空。
Some astronauts live for months on a space station.
有些航天员在空间站生活好几个月。
How can we explore space?
我们怎样探索太空？
There are many ways. We can ...
有很多方法。我们可以……