题目列表(包括答案和解析)
If you look at the sky one night and see something moving and shining that you have never seen before, it might be a comet (彗星).
A comet sometimes looks like a star. Like a planet, a comet has no light of its own. It shines from the sunlight it reflects (反射). Like the earth, a comet goes round the sun, but on a much longer path (轨道) than the earth travels.
If a comet isn’t a star, what is it then?
Some scientists think that a large part of a comet is water frozen into pieces of ice and mixed with iron and rock dust and perhaps a few big pieces of rock. When sunshine melts (融化) the ice in the comet, great clouds of gas go trailing after it. These clouds, together with the dust, form a long tail.Many people perhaps have seen a comet. However no one knows how many comets there are. There may be millions of comets, but only a few come close enough for us to see.
An Englishman named Edmund Halley, who lived from 1656 to 1742, found out a lot about the paths that comets take through the sky. Some comets move out of our sight and never come back. Others keep coming back at regular times. A big comet that keeps coming back was named after Halley because he was the one who worked out when it would come back again. Maybe you have ever seen Halley’s Comets because the last time it came close to the sun and the earth was in the year 1986. Then people all over the world were outside at night to look at it. You will probably be able to see Halley’s Comets when it comes near the earth again.
1.A comet is like ________.
A. sun B. moon C. sunlight D. the earth
2.A large part of a comet is ______.
A. water and rock
B. water frozen into pieces of ice and mixed with iron
C. ice, iron and rock dust
D. only a few big pieces of rock
3.Maybe many people _______.
A. haven’t seen any comets B. have seen all comets
C. have seen a comet at daytime D. have seen a comet
4.Some comets keep coming back ________.
A. at any time B. at noon C. at regular times D. at daytime
5.Halley’s Comets came back _____.
A. in 1990 B. in 1980 C. in 1986 D. in 1989
完型填空：阅读下面短文，从短文后所给各题的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。
Monday morning is an important time at our school. All of the students go to the playground. We listen to music, and we 1 the national flag go up.
Usually, one student gives a talk on Monday mornings. One Monday last year, a boy gave the talk. He was 2 and excited! When I saw him, I wanted to have a try, too.
Can I really do it?
Last week, our teacher said our class should give the talk. My teacher 3 me, “I know you want to have a try. Next Monday morning, I want you to give the talk. Go and write something down. 4 for it, I’m sure you’ll do well.”
“Thank you.” I answered. It was such a great 5 for me! When I got home, I was excited. I wrote two pages for the talk. I read them again and again. When I read, I asked my parents 6 . I wanted to make my teacher happy.
Finally Monday morning came. I began to feel 7 .
When did I last give a talk to 8 many people? Never! This was my first time. Could I really 9 it? Maybe I couldn’t finish the talk.
When I got to school, we all went out to the playground. I 10 in front of everyone. I opened my mouth, but I couldn’t say anything.
“Take it easy,” I said to 11 . “Don’t be nervous. You can do it.”
Just then, I looked down at everyone. I saw about 1,000 eyes. They were all looking at me ! I couldn’t 12 stand up.
I took a look at their eyes more carefully. Their eyes seemed to say, “You can do it! Come on! 13 afraid, just talk!”
I took a big breath. Then I began to talk. It wasn’t hard. It was easy.
I don’t know 14 I finished my talk, but I tried my best to do it. I felt so good that day. I showed myself 15 everyone what I can do.
1. A．watch B．see C．notice D．look at
2. A．surprised B．proud C．bored D．careful
3. A．spoke B．asked for C．said to D．showed
4. A．Look out B．Come on C．Take care D．Get ready
5. A．chance B．news C．time D．message
6. A．to do B．to listen C．to see D．to play
7. A．excited B．happy C．nervous D．surprised
8. A．after B．such C．before D．so
9. A．do B．speak C．talk D．take
10. A．sat B．stood C．jumped D．ran
11. A．me B．myself C．my class D．my parents
12. A．be able to B．hardly C．never D．even
13. A．Not be B．Don’t C．Don’t be D．Not
14. A．where B．how C．why D．whether
15. A．with B．at C．to D．for
Expert(专家)say that students usually need eight to ten hours’ sleep at night, but most Chinese students do not get enough sleep. Some Chinese parents are usually glad to see their children studying late. They will think their children work very hard, but not all parents are happy about this. Once a mother told us that every morning her 10-year-old boy put up one finger(手指)with his eyes still closed, begging(请求)for one more minute to sleep. Like thousands of students “early birds” in China, he has to get up before six every morning.
A report shows that without a good night’s sleep, students seem to be weaker(虚弱)than they should be. Many students have fallen asleep(睡觉) during class at one time or another. Too much homework is not the only reason why students stay up late. Some watch TV or play the computer games late into the night.
Experts have ever said that the students should develop good study habits. So some clever students never study late, they are able to work well in class.
1.The 10-year-old boy begged for more minute to sleep because__________.
A. he didn’t have enough sleep
B. it wasn’t time for him to get up
C. he didn’t want to go to school
D. he wanted his mother to wake him up
2.In this passage we know if students don’t get enough sleep, they may________.
A. become too weak to sleep B. not work well in class
C. go to bed early D. be weak in English
3.In this passage “early birds” means “persons who ______________.”
A. get up early B. get up late
C. sleepless D. don’t want to sleep
4.“Stay up late” here means “_____________.”
A. study late B. watch TV late
C. not go to bed until late D. stay outside
5.According to the passage, which of the following is right? _________.
A. If you want to study better, you must work hard at night.
B. Sleeping less means working hard.
C. Some clever students are able to work well in class because they have good study habits.
D. Students don’t have enough sleep because they have lots of homework to do.
I lost my sight when I was four years old by falling off a box and landing on my head. Now I am thirty-two. I can vaguely(模糊地) 1 the brightness of sunshine and what color red is. It would be wonderful to see things again, 2 a disaster can do strange things to people. It happened to me the other day that I might not have come to love 3 as I do if I hadn’t been blind. I believe in life now. I am not sure that I would believe in it so 4 . I don’t mean that I would prefer to go without my eyes. I 5 mean that the loss of 6 made me enjoy more of 7 I have now.
Life asks us to keep making 8 to reality. If a person is able to get ready for anything changeable his world will 9 more meaningful. I became blind, but I was 10 . My parents and my teachers saw 11 in me－a potential(潜力) to live, you might call it－which I didn’t see, and they make me fight it out with blindness.
The hardest 12 I had to learn was to believe in myself. That was what I had to do at least. If I hadn’t been able to do that, I would become a chair rocker for the 13 of my life. When I say I believe in myself I am not talking about simply the kind of self-confidence that helps me down an unfamiliar staircase 14 . That is part of it. But I mean something bigger than that: A belief that I could deal with anything alone; that somewhere in the 15 there is a special place where I can make myself fit.
1. A. imagine B. find C. remember D. guess
2. A. but B. though C. so D. because
3. A. myself B. life C. eyes D. blindness
4. A. that B. therefore C. happily D. deeply
5. A. seldom B. just C. hardly D. always
6. A. them B. it C. blindness D. light
7. A. that B. what C. which D. where
8. A. moments B. encouragements C. improvements D. changes
9. A. become B. change C. look D. end
10. A. brave B. lucky C. sad D. wise
11. A. something B. everything C. nothing D. anything
12. A. problem B. experience C. difficulty D. lesson
13. A. rest B. whole C. need D. last
14. A. lonely B. alone C. self D. person
15. A. company B. group C. society (社会) D. family
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