题目内容：

Scientists have always wanted to know more about the other world in the space.

Years ago they knew a lot about the moon, They knew how big it is and how far away it is from the earth. But they wanted to know more about it. They thought and thought. At last they found the only way to send men to the moon.

The moon is about 384,000 kilometers away from the earth. A plane can not fly to the moon because the air reaches only 240 kilometers high above the earth. Then there is no air. But something can fly even when there is no air. That is rocket. Rockets can fly out into space. Rockets with men in them have already reached the moon. Some rockets without men I them have flown to other parts, much farther away than the moon in the universe. One day rocket may be able to go to any place.

根据短文内容, 回答下列问题

1.Why do scientists want to send men to the moon?

Because they want to                   about the moon.

2.How far is the moon away from the earth?

It’s about                     away from the earth.

3.Why can’t a plane fly to the moon?

Because                              .

4.How do people reach the moon?

They can reach there                      .

5.Where can rockets go?

One day rockets may be able to go to                   .