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　　There is nothing more important to life than the sun．Without the sun all living things on the earth would die．

　　The sun is a star．There are millions of stars like the sun i________(1)the sky．They are as large as the sun and as hot as the sun．At n________(2)you can see many stars, but in the daytime you can o________(3)see one star－the sun．

　　The sun is much n________(4)to us than any other star．That's w________(5)it looks the biggest and brightest of all the stars．The distance(距離)of the sun from the earth is as much as 110 million kilometers．Most of the stars are thousands of light years a________(6)from the earth．Do you k________(7)the light year?Nothing in the world travels faster than light．It t________(8)300 000 kilometers a second(秒)．And one light year is the distance that light travels in one year．

聽力題

聽句子，選擇適當答語(10分)

1．A．It's about five kilometres．

B．It's about half past seven．

C．It's very cold．

2．A．Which do you think is more delicious？

B．I think I prefer reading．

C．I'll be happy．

3．A．By many people．

B．By radio．

C．By satellite．

4．A．There may be something wrong with you．

B．There must be something wrong with the TV set．

C．It doesn't matter．

5．A．I'm glad to hear that．

B．I'm sorry to hear that．

C．I don't feel well．Maybe I have a cold．

聽短文，根據(jù)短文內(nèi)容選擇正確答案(10分)

1．When it is night，the sun ________．

A．doesn't shine

B．shines for a short time

C．disappears(消失)

D．shines on the other side of the earth

2．We can't see the stars in the sky at daytime because ________．

A．there are no stars there

B．the stars are much smaller than the sun

C．the bright light from the sun makes them not seen

D．the stars come out only at night

3．The stars look small because ________．

A．they are far away

B．they are small

C．they have no light

D．they are in the sky

4．Small things may look ________ when they are closer．

A．bigger

B．smaller

C．nearer

D．farther away

5．The sun looks bigger than other stars because ________．

A．it's bigger

B．it's far away in the sky

C．it gives much bright light

D．it's closer to the earth than other stars