急!英语完形填空!在线等!
The universe（宇宙）is everything out in space．Nobody knows how big the universe is．When we talk 1____ the universe,we mean the earth,the sun,the moon and the stars．
Now let me tell you something about our earth．The earth is a huge ball．It turns round and round in space．2____ surface（表面）is covered by water and land．If you are in a spaceship and look 3____ at the earth from up in space,you will see lots of clouds over the surface of the earth． Through the clouds you will see the blue colour of the oceans and seas．Almost two thirds of the earth is covered with water．
We live on the outside 4____ of the earth．Around and above us is the air．The earth takes twenty-four hours to turn all the way round—that is one day and one night． When your country is facing the sun,it is daytime for you．But as the earth turns you away from the sun,everything around you grows 5____ ．
Can you tell me something more about the earth or the universe?
根据短文内容,选择最佳答案.
1．A．to B．with C．about D．in 2．A．Its B．It's C．It has D．The earth
3．A．up B．over C．off D．down 4．A．part B．point C．pole D．top
5．A．clearer B．brighter C．warmer D．darker