网址:http://m.1010jiajiao.com/timu3_id_2373481[举报]
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.
查看习题详情和答案>>
-Do you like the music Moonlight Sonata?
-Yes ,it ______really beautiful.
A. sounds B. tastes C. looks D. listens
查看习题详情和答案>>
I have spent years of my life traveling all over the world. When I arrive in a new country or city, usually I am _1__ and go to bed. For this reason my first day or night in any__2__place is always quiet and very little happens.
But my first night in Algeciras was very different. This night was very__3__and unusual.
At that time Alseciras in Southern Spain was a dirty and__4__looked-after city. I arrived late in the evening by boat. As soon as I got off the boat, I went to look for a __5__ . I find a small one not far from the boat.
This hotel looked dirty and untidy from the outside. But I was very tired and did not know my __6__ around the city of Algecras. And so I decided to stay in this __7__ hotel on the quay (码头). I also decided to stay in this hotel for another__8__. The moon was full and it was a clear, bright night. From the hotel I could_9__the sea. I could see the huge rock of Gibraltar in the bright moonlight.
The hotel had a narrow _10__and no name. When I went through this doorway, I had to climb up narrow and dark stairs to the first floor. I __11__ a small cupboard with a desk in front of it. This was the hotel office.
An untidy and tired woman was sitting beside the __12__. When I said I wanted a room for the night, she took me __13__some more stairs to a room on the second floor. Inside this room the landlord was sitting playing cards with some friends. He was__14__his game of cards and I was simply a nuisance (讨厌的人). He looked at me when the woman told him that I wanted a room, Then he said, Room Five, and __15__to his game of cards.
1. A.frightened B.excited C.tired D.satisfied
2. A.old B.new C.famous D.unknown
3. A.interesting B.common C.forgetful D.strange
4. A.badly B.well C.wrongly D.slowly
5. A.guide B.driver C.hotel D.dinner
6. A.friend B.address C.home D.way
7. A.small B.large C.expensive D.funny-looking
8. A.memory B.person C.reason D.sight-seeing
9. A.look down B.find out C.study D.forget
10. A.bedroom B.doorway C.stairs D.river
11. A.ran out of B.picked up C.painted D.came to
12. A.bed B.office C.desk D.doorway
13. A.over B.down C.up D.under
14. A.tired of B.enjoying C.buying D.throwing
15. A.turned back B.began C.took back D.finished
查看习题详情和答案>>
阅读下面短文,从每题所给的A、B、C、D四个选项中选出最佳选项。
|
A On a Quiet Night Tang Li Bai I saw the moonlight before my couch, And wonder if it were not the frost on the ground, I raised my head and looked out on the mountain moon, I bowed my head and thought of my far-off home. |
|
B Homesickness -- by Yu Guangzhong In my childhood, Homesickness was a small stamp. I was here. And my mother was over there, When I grew up, Homesickness was a narrow ship-ticket. I was here And my bride was over there: And then Homesickness was ___47________. With me outside And my mother inside: But now, Homesickness is a shallow strait. I am on this side. And the mainland is on the other side |
1.PoemA was written by in Dynasty.
A.Du Fu, Tang B.Bai Juyi, Tang C.Li Bai, Tang D.Sushi, Song
2.Choose the best phrase to fill in the blank.
A.a big rock B.a huge mountain C.a small tomb D.a long river
3.What’s the theme of the two poems?
A.Missing hometown B.Talking about friendship
C.Missing mother D.Talking about city
查看习题详情和答案>>
阅读下面短文,从每题所给的A、B、C、D四个选项中选出最佳选项。
| A On a Quiet Night Tang Li Bai I saw the moonlight before my couch, And wonder if it were not the frost on the ground, I raised my head and looked out on the mountain moon, I bowed my head and thought of my far-off home. |
| B Homesickness -- by Yu Guangzhong In my childhood, Homesickness was a small stamp. I was here. And my mother was over there, When I grew up, Homesickness was a narrow ship-ticket. I was here And my bride was over there: And then Homesickness was ___47________. With me outside And my mother inside: But now, Homesickness is a shallow strait. I am on this side. And the mainland is on the other side |
| A.Du Fu, Tang | B.Bai Juyi, Tang | C.Li Bai, Tang | D.Sushi, Song |
| A.a big rock | B.a huge mountain | C.a small tomb | D.a long river |
| A.Missing hometown | B.Talking about friendship |
| C.Missing mother | D.Talking about city |