缺词填空  先通读下列短文，掌握其大意，然后根据短文内容和所给首字母，在空格内填入一个适当的词，使短文意思完整。所填单词在题后横线上必须完整写出（本大题共6分，每格0.5分）

Suppose you are reading a book. Suppose you suddenly close your eyes, can you still see the book? "Of course not." you will say. But can you tell why? You would p__1. say, "When I close my eyes, my e__2.___ cannot get out of my eyes to get to the book." Many others might give an explanation(解释) very much like the above . But this explanation is w__3.___.

      You cannot see any object if light from that object doesn’t get into your eyes. Some of the things you see give off light of their own.

      The sun, the star, a lighted lamp are examples that can be seen by their own light. S__4.__ things are luminous(发光的). Most of the things you see are not giving off light of their own. They are simply reflecting(反射) light that falls on them from the sun or some other luminous bodies. The moon, for example, doesn't give off any light of i__5._ own. It's non-luminous. You see it because sunlight falls on it and some of it reflects in your d__6.__. So moonlight is only second-hand sunlight.

      When you look at a book, it sends to your eyes some of the light which falls on it, and you see the book. If light could be kept out from w__7.__ you are, so that there would be no light for the book to reflect, then you could not see the book e__8.__ with your eyes wide open.

      Light travels so fast that the time it t___9.__ from the book to your eyes is so s___10._ as if there was none at all. Light r___11.__ us from the moon, which is about 380,000 kilometers away, in only a little more than a s__12.__.

 

You can’t see any object unless light from that object gets into your eyes．Some of the things you see give off light of their own。The sun，the stars，a lighted lamp are the examples that can be seen by their own light．But most of the things you see are not giving off light of their own．They are just reflecting(反射)light that falls on them from the sun or some other luminous bodies．The moon，for example，doesn’t give off any light of its own．It is not 1uminous．You see it because sunlight falls on it and some of the sunlight reflects on the earth．So moonlight is only second—hand sunlight．
When you look at a book，it sends some of the light which fails on it to your eyes，and you see the book．If light could be kept out from where you’re so that there would be no light from the book to reflect．Then you couldn’t see the book even with your eyes wide open．Light travels so fast that the time in which it travels from the book you’re reading to your eyes is as short as if there were no time at time．Light reaches us from the moon，which is about 380，000 kilometres away，in only a little more than a second．
【小题1】You can see the book because________．

A．your eyes are close to it	B．it reflects some of the light
C．it has light of its own	D．it is big enough to be seen

【小题2】The Chinese meaning of the world“luminous”is close to_______．

A．闪光的

B．看不见的

C．发光的

D．明亮的

【小题3】________has light of its own．

A．The moon

B．The earth

C．The sun

D．The satellite of Dong Fong Hong

【小题4】Light travels about_________kilometers per second．

A．300，000

B．100，000

C．400，000

D．190，000

【小题5】Which of the following is TRUE?

A．All the things you can see give off light．

B．Light from the book is much faster than that from the moon．

C．The moment you open your eyes，the light from the book travels to your eyes．

D．Light travels so fast that there is no time for you to read．

You can’t see any object unless light from that object gets into your eyes．Some of the things you see give off light of their own。The sun，the stars，a lighted lamp are the examples that can be seen by their own light．But most of the things you see are not giving off light of their own．They are just reflecting(反射)light that falls on them from the sun or some other luminous bodies．The moon，for example，doesn’t give off any light of its own．It is not 1uminous．You see it because sunlight falls on it and some of the sunlight reflects on the earth．So moonlight is only second—hand sunlight．

    When you look at a book，it sends some of the light which fails on it to your eyes，and you see the book．If light could be kept out from where you’re so that there would be no light from the book to reflect．Then you couldn’t see the book even with your eyes wide open．Light travels so fast that the time in which it travels from the book you’re reading to your eyes is as short as if there were no time at time．Light reaches us from the moon，which is about 380，000 kilometres away，in only a little more than a second．

1.You can see the book because________．

     A．your eyes are close to it       B．it reflects some of the light

     C．it has light of its own         D．it is big enough to be seen

2.The Chinese meaning of the world“luminous”is close to_______．

     A．闪光的       B．看不见的      C．发光的       D．明亮的

3.________has light of its own．

A．The moon   B．The earth   C．The sun    D．The satellite of Dong Fong Hong

4.Light travels about_________kilometers per second．

    A．300，000      B．100，000      C．400，000        D．190，000

5.Which of the following is TRUE?

    A．All the things you can see give off light．

    B．Light from the book is much faster than that from the moon．

    C．The moment you open your eyes，the light from the book travels to your eyes．

    D．Light travels so fast that there is no time for you to read．

 

缺词填空 先通读下列短文，掌握其大意，然后根据短文内容和所给首字母，在空格内填入一个适当的词，使短文意思完整。所填单词在题后横线上必须完整写出（本大题共6分，每格0.5分）
Suppose you are reading a book. Suppose you suddenly close your eyes, can you still see the book? "Of course not." you will say. But can you tell why? You would p__【小题1】 say, "When I close my eyes, my e__【小题2】___ cannot get out of my eyes to get to the book." Many others might give an explanation(解释) very much like the above . But this explanation is w__【小题3】___.
You cannot see any object if light from that object doesn’t get into your eyes. Some of the things you see give off light of their own.
The sun, the star, a lighted lamp are examples that can be seen by their own light. S__【小题4】__ things are luminous(发光的). Most of the things you see are not giving off light of their own. They are simply reflecting(反射) light that falls on them from the sun or some other luminous bodies. The moon, for example, doesn't give off any light of i__【小题5】_ own. It's non-luminous. You see it because sunlight falls on it and some of it reflects in your d__【小题6】__. So moonlight is only second-hand sunlight.
When you look at a book, it sends to your eyes some of the light which falls on it, and you see the book. If light could be kept out from w__【小题7】__ you are, so that there would be no light for the book to reflect, then you could not see the book e__【小题8】__ with your eyes wide open.
Light travels so fast that the time it t___【小题9】__ from the book to your eyes is so s___【小题10】_ as if there was none at all. Light r___【小题11】__ us from the moon, which is about 380,000 kilometers away, in only a little more than a s__【小题12】__.

You can’t see any object unless light from that object gets into your eyes．Some of the things you see give off light of their own。The sun，the stars，a lighted lamp are the examples that can be seen by their own light．But most of the things you see are not giving off light of their own．They are just reflecting(反射)light that falls on them from the sun or some other luminous bodies．The moon，for example，doesn’t give off any light of its own．It is not 1uminous．You see it because sunlight falls on it and some of the sunlight reflects on the earth．So moonlight is only second—hand sunlight．
When you look at a book，it sends some of the light which fails on it to your eyes，and you see the book．If light could be kept out from where you’re so that there would be no light from the book to reflect．Then you couldn’t see the book even with your eyes wide open．Light travels so fast that the time in which it travels from the book you’re reading to your eyes is as short as if there were no time at time．Light reaches us from the moon，which is about 380，000 kilometres away，in only a little more than a second．
【小题1】You can see the book because________．

A．your eyes are close to it	B．it reflects some of the light
C．it has light of its own	D．it is big enough to be seen

【小题2】The Chinese meaning of the world“luminous”is close to_______．

A．闪光的

B．看不见的

C．发光的

D．明亮的

【小题3】________has light of its own．

A．The moon

B．The earth

C．The sun

D．The satellite of Dong Fong Hong

【小题4】Light travels about_________kilometers per second．

A．300，000

B．100，000

C．400，000

D．190，000

【小题5】Which of the following is TRUE?

A．All the things you can see give off light．

B．Light from the book is much faster than that from the moon．

C．The moment you open your eyes，the light from the book travels to your eyes．

D．Light travels so fast that there is no time for you to read．