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完型填空:(共10分)
John is a famous writer now. But he said he was not a ____1____ student when he was young. He was often late for ___2_____ and didn’t like doing his homework. Sometimes, he slept in class. He didn’t understand(理解) much ,____3____ he always thought he understood everything and made some jokes.
One day the teacher ____4____ the students a question, “When Jack was ten years old, ____5____ brother Bob was twenty. Now Jack is fifteen and ___6___ is his brother Bob?” John said, “That’s easy. Bob is twice as old as Jack, so he is now thirty.”
Another time, the _7____ in a science class asked, “When it thunders(打雷), ____8____ do we always see light before we ____9____ sound?
“But, Miss,” said John quickly, “don’t you ___10____ our eyes are in front of our ears?
1. A.good B.tall C.cool D.short
2. A.dinner B.lunch C.class D.play
3. A.so B.and C.or D.but
4. A.sent B.asked C.told D.found
5. A.your B.my C.his D.her
6. A.how many B.how old C.how much D.how long
7. A.teacher B.farmer C.nurse D.pilot
8. A.what B.when C.where D.why
9. A.see B.listen C.hear D.feel
10. A.read B.learn C.study D.know
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When you look up into the sky at night, have you ever felt that your eyes are playing tricks on (捉弄) you? It seems that the stars are moving all the time.
Actually, there is nothing wrong with your eyes. This twinkling effect is called scintillation (交光). Scintillation happens because of air movements in the earth’s atmosphere (大气). Light is “bent (弯曲的)” when it travels through different parts of the earth’s atmosphere. As the air in the earth’s atmosphere is moving all the time, the light from the stars looks as if it is moving too.
The same thing also happens to things on the ground. On a very hot and shiny day, if you look at the road, the image in the distance is not clear and things move slightly. You can also see the same effect if you drop a rock into water. The rock appears a little unclear under the moving water.
This twinkling effect causes a lot of problems for astronomers (天文学家) since they cannot observe the stars clearly. A telescope (望远镜) was sent into space so that the air movements in the atmosphere could be avoided (避免). It took a long time to build the space telescope but finally in 1990, a huge space telescope called the Hubble Space Telescope was successfully sent into space. Since then, astronomers have many important observations that have helped people understand space better.
根据短文内容,选择最佳选项。 (10分)
1.What happens to the light from the stars we see when the air in the earth’s atmosphere is moving?
A.It looks even brighter.
B.It looks as if it is bent.
C.It looks as if it is moving.
D.It looks like drops of rain.
2.Scintillation also happens on according to the passage.
A.rainy days B.shiny days
C.cloudy days D.windy days
3.What can you see when you drop a rock into the water?
A.The rock gets broken.
B.The rock becomes unclear.
C.The water becomes much polluted.
D.The water does not move anymore.
4.The underlined word “observe” means “ ”.
A.watch B.listen C.draw D.explain
5.Why is scintillation a problem for astronomers?
A.The stars never stay still.
B.It makes the stars too dark to see.
C.It makes astronomers feel too hot to work.
D.Astronomers cannot observe the stars clearly.
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A. How long B .How far C. How often 查看习题详情和答案>>
I’m Brain. I 16 a good friend. His name is Jack. He 17 from Canada. He likes brown best(最). What 18 Jack look like? He 19 cool. His eyes are big and blue. He has short, 20 hair, and it’s his favourite colour. Jack is 21 . He is just 1.4 metres tall. Jack likes to tell 22 stories (故事) and I like him (他) very much. But I feel 23 today, because (因为) he feels 24 . I take him to 25 a doctor.
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完形填空。(10分)
Clerk:Can I help you?
Jenny:Yes, please. Do you 1 black schoolbags?
Clerk:Yes. We have black ones, red ones 2 blue ones.
Jenny:How 3 are they?
Clerk:Each of them is fifteen 4 .
Jenny:Great! Well, I 5 a T-shirt. Can you tell me the prices of your T-shirts?
Clerk:OK. Look! These red T-shirts 6 seven dollars. Do you 7 the color?
Jenny:Yes, I do. How much are those yellow T-shirts 8 the table?
Clerk:Fifteen dollars each. And 9 black T-shirts are twenty dollars.
Jenny:OK! I’ll 10 a red one. Thank you.
Clerk:You’re welcome.
【小题1】A、have B、see C、want
【小题2】A、or B、but C、and
【小题3】A、long B、many C、much
【小题4】A、dollar B、dollars C、dollar’s
【小题5】A、want B、have C、buy
【小题6】A、am B、is C、are
【小题7】A、find B、like C、meet
【小题8】A、for B、of C、on
【小题9】A、this B、that C、those
【小题10】A、bring B、take C、sell