题目列表(包括答案和解析)
1.它的明亮的光________
2.只是飞机上的光________
3.充满________
4.令人吃惊的事________
完形填空
When the sun has set (下落), we see other light (光) in the sky (天空) It is ____1__ than the sun, and not so bright (明亮的). It is the moon. We can see many little lights, too. They are the stars (星星). You can not ___2___ the stars. There are ___3___ of them. They are very ___4___. That's ___5___ they look so ___6___. A star ___7___ our sun. It shines (发光) by its own (自己的) light. The moon has ___8___ light of its own. The sun ___9___ it bright. ___10___ it shines.
1.[ ]
A. bigger B. smaller C. older D. younger
2.[ ]
A. see B. make C. count D. find
3.[ ]
A. too many B. lots of C. a few D. too few
4.[ ]
A. near B. far away C. high D. different
5.[ ]
A. how B. where C. when D. why
6.[ ]
A. big B. bright C. nice D. small
7.[ ]
A. likes B. calls C. is like D. makes
8.[ ]
A. no B. not C. few D. little
9.[ ]
A. puts B. makes C. lets D. finds
10.[ ]
A. But B. Then C. And D. Well
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.
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