用所给动词的适当形式填空。

    Many years ago，people  1  (think)the sun went round the earth，and the earth went around the moon．In some countries people even said the sun was a god(上帝)．They thought that he  2   (drive)across the sky everyday on a golden(金色的)horse．Now we know the earth   3   (go)round the sun．Scientists tell us that the earth travels over a thousand miles a minute on its way round the sun．

    Some people   4  (be) to the moon since last century(世纪)．Our country   5  (send) the first moon explorer，Chang’e I (月球探测仪——嫦娥一号)into the space on Oct 24th，2007．And it   6  (take)the first photo of the moon．All of our Chinese are proud of it．From now on，we must   7  (work)hard to make a contribution to developing the newest moon explorer，we are looking forward to   8  (see)it land on the moon with people some day．

    Of course the sun is too hot for people   9  (reach)now．Maybe in the future people   10  (land)on the sun．

阅读下面材料，根据其内容完成后面各项任务。

    Thousands of years ago，people didn’t know why sometimes the moon is full and sometimes it is crescent（弯曲）shaped，and even sometimes it can’t be seen at all．The moon was a great mystery（谜）to them．They made up stories about the great light in the night sky．They thought there was a god up there who was in charge of（掌管）the moon。They called the god，“Moon God”．

      In fact the moon is the Earth’s satellite（卫星）．Many planets have a satellite，and some have many．Our moon travels around the Earth once a month．It’s much smaller than the Earth and gravity（引力）pulls it．

    In most nights the moon is the brightest thing in the sky．This is because it reflects（反射）light from the sun．It doesn’t shine itself．

    What we see of the moon changes from night to night．Its changing shapes are called phases（盈亏）．The pictures of the moon’s phases show the shapes of the shining part of the moon that people see in its different phases．

    When the moon is between the sun and the Earth，we can’t see the moon at all．This is called a“new moon”．

    When the moon is behind the Earth and the sun shines on it，there is a“full moon”．

    Thanks to space travel，people now know more about the moon．Humans have even visited it．They know that there is no air，no water or life there．But there is much sunlight and natural resources（资源）．These can be very useful to us．Some scientists say，with the help of modem technology，more and more people will be able to go to the moon，even live on it．Maybe it will be some people’s second home in the future．

（The changing positions of the moon’s phases）  （The pictures of the moon’s phases）

1．In the third sentence of Paragraph I“They made up stories about the great light in the night sky”，“the great light”refers to _____________．

2．Why is the moon very bright in most nights?

3．We can see the“full moon”____________times a year．

4．将画线的英语句子译成汉语。

5．Which of the pictures a，b，c，d，e is of a“new moon”?

阅读理解

　　A long time ago people thought the sun went around the earth. Now we know the earth goes round the sun. It takes the earth a year to go all the way round the sun. Today men even know how far it is for the earth to go round the sun. They tell us that the earth travels over one and a half thousand kilometers a minute on its way round the sun.

　　The sun is really a star. It's much bigger than the earth and it is very hot. Some people have been to the moon, but we know no one can go to the sun. It's too hot for people to live anywhere near it. The sun is three hundred thousand times heavier than the earth and more than a million times larger.

1．Long ago people thought ________.

[　　]

A．the sun circled the earth

B．the earth circled the sun

C．the earth went round the sun

D．the moon went round the sun

2．It takes ________.

[　　]

A．the sun one year to go all the way round the earth

B．the earth one year to go all the way round the sun

C．the earth one month to go round the sun

D．the sun one month to go round the earth

3．In fact the earth travels ________ in the space.

[　　]

A．a million kilometers an hour

B．half a thousand kilometers a minute

C．very fast

D．1.5 thousand kilometers a minute

4．People can never live anywhere near the sun because ________.

[　　]

A．the sun is too hot

B．the sun is too far

C．the sun is too big

D．spaceships can't reach the sun

5．The earth is ________.

[　　]

A．as heavy as the sun

B．much heavier than the sun

C．as light as the sun

D．much lighter than the sun

　　The earth is not the only body that travels around the sun. With it are eight other planets(行星), fellow members of the sun's family.

　　Two of them are nearer while the other six are farther from the sun than the earth is. The farther they are, the longer trips they make around the sun. People noticed long ago that these made travelling bodies move around in the sky in definite(一定的) paths.

　　We know that every little bit of matter in the universe pulls upon every other bit of matter. There exists(存在) a pull between the earth and the moon, which keeps the moon travelling in its orbit(轨道) around our planet, the earth. The gravity(重力) holds you to its surface, and pulls back to it the ball which you throw into the air. Of course the ball also pulls on the larger earth, but the earth is so much larger that the pull is not noticed.

　　Now remember that large bodies exert (施加) a greater pull on any body than smaller ones which contain(含有) less material (原料，材料). But each object in the universe, no matter how small, pulls on all other objects to some degree(某种程度).

1．According to the passage, there are ________ fellow members besides the earth in the sun's family.

[　　]

2．Which of the following statements is TRUE?

[　　]

A．The earth is farther from the sun than any of the other eight planets.

B．Two of the planets are farther from the sun than the earth.

C．Six of the planets are closer to the sun than the earth.

D．The earth is the third nearest planet to the sun.

3．What holds the nine planets in their paths?

[　　]

4．Why the moon travels around the earth is ________ .

[　　]

A．that the sun pulls upon the moon

B．that the earth pulls upon the moon

C．that the earth and the moon pull upon each other

D．that the other eight planets pull upon the moon

5．In the last paragraph the writer tell us ________ .

[　　]

A．each object in the universe pulls upon all the others more or less

B．a large body pulls on a small one less than a small body pulls on a large one

C．a small body does not pull on a large one

D．the pull between two bodies is always equal(相等)