完形填空，阅读下面的短文，掌握其大意，然后从短文后各题所给的A、B、C、D四个选项中，选择最佳选项。

　　A

　　IQ(intelligence quotient智商)is a score that shows a person’s level of intelligence. People used to believe that some people are born with a high IQ and some aren’t.

　1 a study by scientist at University College London has challenged(挑战)this idea. According to an article last October on the Journal Nature, scientists are beginning to think that our IQ is not a constant(不变的)score.

　　The scientists tested 33 healthy young people in 2004 between the ages of 12 and 16. Then they did tests again four years later, when the same people were between 16 and 20.

　　Scientists found big changes in the IQ scores between 2008 and 2004. Some　2and some fell 3 as many as 21 points.

　　To test whether these scores were meaningful, the scientists compared them with results from brain scans(扫描). They found that the IQ changes matched changes in the structure(结构)of the subjects’ brains. “A change in 20 points is a huge 　4 ,” said Professor Cathy Price, who led the research. He said it could mean the difference between an average and a 　5 person. The team has not found a clear cause for these changes. However, they say it is 　6 that education plays a role in changing IQ. “Here we have shown that children’s 　7 is likely to be still developing, ” says Price. “We have to be careful not to write off 　8 performers at an early stage. In fact, their IQ may improve in a few more years. ”

　  1 A. And B. However C. Besides D. Though

　  2 A. rise B. rose C. raise D. raised

　  3 A. of B. with C. by D. from

　　4 A. difference B. matter C. thing D. meaning

　　5 A. successful B. gifted C. able D. rich

　　6 A. natural B. true C. certain D. possible

　  7 A. score B. intelligence C. skill D. interest

　　8 A. clever B. prettier C. nicer D. poorer

　　B

　　As darkness fell, hundreds of people in the Swiss village left their houses. They were staring(注视)forward at the mountain top in the distance. It was covered with ice and snow-beautiful and dangerous.

　　The huge mountain is called Matterhorn. Mountain climbers had 　9 the top through the southern route(路线). But no one had ever dared to try a winter climbing up the northern side. But now one man was daring to try the 10 route. He was Walter Bonatti, a great mountain climber 　11 Italy. For two days he had climbed. The village people had watched him anxiously(焦虑). Now they were waiting to see his signal. If he planned to 　12 the next day, he would light(点燃)a green signal(信号). A red light would mean that he was turning back. A tiny green light 13 high on the mountain side. Bonatti was not giving up! The people 　14. The next day he continued his way upward. He was so lonely and so 　15 ! But he would not give up. Again that night he lit the green light. In the morning, Bonatti 16 . He could not see the top;he knew he was 17there. Though the climb was painful, he moved up. Bonatti had spent months 　18for the climb. Was the training enough? Did he have the strength and skill to climb to the top? He was finally at the top! News about his. 　19 was radioed to the world.

　　The trip down the southern route was easy. He was warmly welcomed in the village. He had done the “ 　20” and would be well remembered as a climber of all time.

　　 9A. reached B. passed C. watched D. followed

　　10A. comfortable B. important C. difficult D. nervous

　　11 A. with B. from C. in D. at

　　12 A. turn back B. come down C. go on D. get back

13A. placed B. appeared C. pulled D. found

　　14 A. cried B. laughed C. jumped D. cheered

　　15 A. sleepy B. excited C. tired D. happy

　　16 A. woke up B. turned up C. got up D. looked up

　  17 A. already B. almost C. hardly D. surely

　  18A. training B. practising C. planning D. asking

　  19 A. importance B. success C. climb D. courage

　  20A. necessary B. dangerous C. perfect D. impossible

My uncle likes hunting very much. He often goes 　1　during the weekend and usually　2　 home with a bag of birds. Last Sunday evening he came home 　3　 than usual. He didn’t say 　4　 when he came 　5　. He threw his 　6 on to the table and sat by the fire. He looked tired and 　7　.
　　“Didn’t you have a good day, dear?”his wife asked.
　　“　8　 do you think?”he answered angrily and pointed 　9　 the bag on the table .“ Look at the bag! There’s only one bird in it and 　10　 me a lot of money!”“Weren’t there any birds?”she asked kindly.
　　“Hundreds of them!”my uncle said,“　11　 I spent the day 　12　 with a 　13　.”
　　“What happened, dear?”she asked.
　　“I shot my first bird at five o’clock 　14　 afternoon. Soon afterwards, I aimed at 　15　 one and 　16　, but I don’t know what happened. I think I slipped because I didn’t shoot the bird. I 　17　 a cow and killed it. The farmer 　18　owned it got very angry with me. I argued with him for hours and 19 theend I had to 　20　 him 50 pounds!”
　　1．A. shoot       B. to shoot　　  C. and shoots      D. shooting
　　2．A. goes        B. comes　　　   C. leaves          D. gets
　　3．A. early       B. earlier　　　 C. earliest        D. the earliest
　　4．A. anything    B. nothing　　　 C. something       D. everything
　　5．A. in          B. out　　　 C. down          D. up
　　6．A. hat         B. bag　　　 C. gun           D. glasses
　　7．A. terrible    B. pleased　 C. wonderful     D. angry
　　8．A. What        B. How　　　 C. Why           D. When
　　9．A. of          B. to　　　  C. up            D. at
　　10．A. paid       B. spent　　 C. took          D. cost
　　11．A. So         B. Or　　    C. But           D. And
　　12．A. talking    B. arguing　 C. hunting       D. playing
　　13．A. policeman  B. hunter　　C. farmer        D. cow
　　14．A. that       B. this　　  C. one           D. some
　　15．A. the other  B. the　　   C. another       D. some
　　16．A. fired      B. lit　　   C. began         D. opened
　　17．A. frightened B. shot at　 C. hit           D. missed
　　18．A. who        B. which　　 C. whose         D. whom
　　19．A. at         B. in　　    C. for           D. by
　　20．A. borrow     B. lend　 　 C. pay           D. earn

Amy's family has fun. They mail a diary(日记簿、日记) to each other. Everyone writes something in it. Amy's brother is open. He tells many things about his life. Amy's sister is Lazy. She doesn't write much. Amy's dad writes stories. Her mom is talkative. She writes a lot. Everyone enjoys the diary.

41.Where do Amy's family members write their diaries?

A. On the same family diary.　　 B. On their own diaries.

C. On Amy's diary.　　　　　　　　　 D. On Mother's diary.

42.When did Amy design a new dress?

A. On Monday.　 B. On Tuesday.　 C. Yesterday.　 D. Today.

43.What does the brother think of his job?

A. The job makes him sad.　 B. The job always gives him pleasure

C. The job is too easy.　　　　 D. The job is a challenge.

44.What did the mother do today?

A. She made a chocolate cake.　 B. She did nothing but walk in the park.

C. She got a new job.　　　　　　　　 D. She went for a walk and visited Aunt Betty.

45.What's the best title for the passage?

A. Amy and her family.　　　　 B. Amy and her diary.

C.A family's diary.　　　　　　 D. Amy's father writes stories.

Margaret, married with two small children, has been working for the last seven years as a night cleaner, cleaning offices in a big building.

She trained as a nurse, but had to give it up when her elder child became seriously ill. "I would have liked to go back to it, but the shifts(工作班次) are all wrong for me, as I have to be home to get the children up and off to school."

So she works as a cleaner instead, from 9 p.m. till 6.a.m. five nights a week for just￡90, before tax and insurance. "It's better than it was last year, but I still think that people who work 'unsocial hours' should get a bit extra."

The hours she's chosen to work meant that she sees plenty of the children, but very little of her husband. However, she doesn't think that puts any pressure on their relationship.

Her work isn't physically very hard, but it's not exactly pleasant, either. "I do get angry with people who leave their offices like a place for raising pigs. If they realized people like me have to do it, perhaps they'd be a bit more careful."

The fact that she's working all night doesn't worry Margaret at all. Unlike some dark buildings at night, the building where she works is fully lit, and the women work in groups of three. "Since I've got to be here, I try to enjoy myself-and I usually do, because of the other girls. We all have a good laugh, so the time never drags."

Another challenge Margaret has to face is the reaction of other. people when she tells them what she does for a living. "They think you're a cleaner because you don't know how to read and write," said Margaret. "I used to think what my parents would say if they knew what I'd been doing, but I don't think that way any more. I don't dislike the work though I can't say I'm mad about it."

54. Margaret left her job as a nurse because_______.

　　 A. she needed the right time to look after her children

　　 B. she had suffered a lot of mental pressure

　　 C. she wanted to earn more money to support her family

　　 D. she felt tired of taking care of patients

55. Margaret gets angry with people who work in the office because_______.

　　 A. they never clean their offices　　　 　　　 B. they look down upon cleaners

　　 C. they never do their work carefully 　 D. they always make a mess in their offices

56. When at work, Margaret feels_______.

A. tired because of the heavy workload　 　　

B. happy because the building is fully lit

　　 C. light-hearted because of her fellow workers　　

D. bored because time passed slowly

57. The underlined part in the last paragraph implies that Margaret's parents would_______.

　　 A. help care for her children　　　　 B. feel disappointed in her

C. show sympathy (同情) for her D. regret what they had said

Margaret, married with two small children, has been working for the last seven years as a night cleaner, cleaning offices in a big building.

She trained as a nurse, but had to give it up when her elder child became seriously ill. "I would have liked to go back to it, but the shifts(工作班次) are all wrong for me, as I have to be home to get the children up and off to school."

So she works as a cleaner instead, from 9 p.m. till 6.a.m. five nights a week for just￡90, before tax and insurance. "It's better than it was last year, but I still think that people who work 'unsocial hours' should get a bit extra."

The hours she's chosen to work meant that she sees plenty of the children, but very little of her husband. However, she doesn't think that puts any pressure on their relationship.

Her work isn't physically very hard, but it's not exactly pleasant, either. "I do get angry with people who leave their offices like a place for raising pigs. If they realized people like me have to do it, perhaps they'd be a bit more careful."

The fact that she's working all night doesn't worry Margaret at all. Unlike some dark buildings at night, the building where she works is fully lit, and the women work in groups of three. "Since I've got to be here, I try to enjoy myself-and I usually do, because of the other girls. We all have a good laugh, so the time never drags."

Another challenge Margaret has to face is the reaction of other. people when she tells them what she does for a living. "They think you're a cleaner because you don't know how to read and write," said Margaret. "I used to think what my parents would say if they knew what I'd been doing, but I don't think that way any more. I don't dislike the work though I can't say I'm mad about it."

54. Margaret left her job as a nurse because_______.

　　 A. she needed the right time to look after her children

　　 B. she had suffered a lot of mental pressure

　　 C. she wanted to earn more money to support her family

　　 D. she felt tired of taking care of patients

55. Margaret gets angry with people who work in the office because_______.

　　 A. they never clean their offices　　　 　　　 B. they look down upon cleaners

　　 C. they never do their work carefully 　 D. they always make a mess in their offices

56. When at work, Margaret feels_______.

A. tired because of the heavy workload　 　　

B. happy because the building is fully lit

　　 C. light-hearted because of her fellow workers　　

D. bored because time passed slowly

57. The underlined part in the last paragraph implies that Margaret's parents would_______.

　　 A. help care for her children　　　　 B. feel disappointed in her

C. show sympathy (同情) for her D. regret what they had said