题目内容：

As we all know, the Moon is the moon (卫星) of Earth, and it goes around the earth.Scientists have already known a lot about it, (A) but they’ve always wanted

to know more about it.And they decided to send men to the Moon.They think it’s the best way to learn more about the moon.

But how do the astronauts (宇航员) get to the moon? The moon is about 384,000 kilometers away from the earth.They can’t take a plane to the Moon.But something can fly even when there is no air.That is a manned spacecraft(载人宇宙飞船).Several astronauts have been to the Moon in the manned spacecraft.

1.“it” in sentence (A) refers to (指得是) _____.

A.the planets                   B.the Moon   

C.the sky                     D.the star

2.The Moon is _____ away from the earth.

A.over 384,000 kilometers       B.only 384,000 kilometers

C.about 384,000 kilometers     D.about 348,000 kilometers far

3.The best way to learn more about the Moon is to _____.

A.send men there                B.take photos of it   

C.live on it                    D.find another moon

4.The astronauts have been to the moon in the _____.

A.plane                       B.manned spacecraft 

C.space station                 D.air

5.The best title (题目) for this passage is _____.

A.The Moon

B.The exploration (探索) of the Moon  

C.Men to the Moon

D.The manned spacecraft