In the sky, you can see the sun, stars, and the moon. The sun is up during the day. The sun gives us light and heat. Plants need the sun to grow, using its energy like nature's own factory.
在天空中，你可以看到太阳、星星和月亮。白天太阳高挂。太阳为我们提供了光和热。植物生长需要阳光，它们利用阳光的能量，就像自然界自身的工厂一样。
We can see the stars at night. They give off light and heat, just like the sun. There are more stars than we can count, creating a wonderful concert in the sky.
晚上我们可以看到星星。它们就像太阳一样也发出光和热。天空中的星星多得数不清，仿佛在天空中上演一场美妙的音乐会。
Some people see shapes in the stars. A group of stars that make a shape is called a constellation. Have you ever seen the Big Dipper? That is a part of the constellation Ursa Major!
有些人从星星中看出形状。由一群星星组成的形状称为星座。你曾见过北斗七星吗？那就是大熊星座的一部分！
The moon is out at night. Sometimes we can still see it during the day! It does not give off light and heat.
月亮在晚上出来，有时白天我们仍能看到它！它不会发出光和热。