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

Many students now like the Internet very much. Lin Gang likes 41 , too. What does he like doing on the 　42 ? He likes playing games and 　43 music. He often 44 some nice songs from the Internet. Does he use it for 　45 ?Yes, sometimes he 　46 English on it. 　47 does Lin Gang play games on the computer? 48 Saturday and Sunday. And he often does that 　49 . Because he doesn’t 　50 a computer at home. He asks his 51 to buy one for him, 　52 she doesn’t agree（同意）.Her mother 53 to him, ”It’s not 　54 for you to play computer games too 　55 .”

(　　　　　　 )41.A. them　　　　　 B. they　　　　　 C. its　　　　　　　　　　 D. it

(　　　　　　 )42.A. computer　　 B. table　　　　　 C. mouse　　　 D. printer

(　　　　　　 )43.A. singing B. writing　　　 C. listening to D. making

(　　　　　　 )44.A . buys 　　　 B. downloads（下载） C. opens D. sings

(　　　　　　 )45.A. play　　　　　 B. studying　　　　　 C. emails　　　　　　　 D. talking

(　　　　　　 )46.A. needs　　　　 B. takes　　　　　　　　 C. brings　　　　　　　 D. learns

(　　　　　　 )47.A. How　　　　　 B. Where　　　 C. What　　　　　　　　　　　 D. When

(　　　　　　 )48.A. In　　　　　　　 B. To　　　　　　　　　 C. On　　　　　　　　　　　　　 D. From

(　　　　　　 )49.A. at home　　　 B. at school　　　　　 C. at work　　　　　　 D. in his bedroom

(　　　　　　 )50.A. have　　　　　 B. has　　　　　　　　　 C. plays　　　　 D. know

(　　　　　　 )51.A. mother B. father　　　　 C. sister　　　　 D. grandmother

(　　　　　　 )52.A. but　　　　　　 B. and　　　　　 C. so　　　　　　 D. because

(　　　　　　 )53.A. likes　　　　　 B. calls　　　　　 C. sounds　　　　　　 D. says

(　　　　　　 )54.A. bad　　　　　　 B. careful　　　 C. unhealthy　　　　 D. good

(　　　　　　 )55.A. many　　　　 B. well　　　　　 C. often　　　　　　　　 D. only

I’m John. 21is my room. The TV is 22 the table. The video tapes 　23 in the drawer. Where are 　24 pencils? They 　25 on the table. 　26 my pencil-case? Oh, 　27 in my backpack. Where’s my backpack? 28 on the table? No, it isn’t. It’s on the bed. My alarm clock is on the dresser. My keys and ID cards are 　29 the drawer. I have (有) many 　30 on my bookcase.

(　 )21.A.what　　　　　　　　 B. This　　　　　　　　　　　 C. These　　　　　　　　　 D. Those

(　 )22.A. in　　　　　　　　　　 B. on　　　　　　　　　　　　 C. under　　　　　　　　　　 D. and

(　 )23.A. is　　　　　　　　　　 B. are　　　　　　　　　　　　 C. to　　　　　　　　　　　　 D. isn’t

(　 )24.A. your　　　　　　　　 B. his　　　　　　　　　　　　 C. her　　　　　　　　　　　 D. my

(　 )25.A. are　　　　　　　　　 B. don’t　　　　　　　　　　 C. aren’t　　　　　　　　　　 D. isn’t

(　 )26.A. What’s　　　　　　 B. Who’s　　　　　　　　　 C. Where are　　　　　　 D. Where’s

(　 )27.A. It’s　　　　　　　　　 B. They’re　　　　　　　　 C. It　　　　　　　　　　　　　 D. They

(　 )28.A. It is　　　　　　　　 B. Are they　　　　　　　　 C. Is it　　　　　　　　　　　 D. Is

(　 )29A. on　　　　　　　　　　 B. in　　　　　　　　　　　　　 C. next　　　　　　　　　　　 D.at　　　　

(　 )30A. books　　　　　　　 B. book　　　　　　　　　　 C. picture　　　　　　　　　 D. pen

Mrs. Jack was always 41 lots of time and money in 42 the shopping.
　 It was winter, Mrs. Jack wanted to do a lot of shopping, she waited 43 it was Saturday when her husband was 44 , and she 45 him to the shops with her and 46 for everything. They went to a lot of shops and supermarkets, and Mrs. Jack 47 a lot of things, and Mr. Jack certainly had to 48 all these things. Mrs. Jack often 49 and said, "Look, Joe! 　50 that beautiful!
He then answered, "All right, dear. How 51 is it? " and took his money out to pay for it.
It was dark when they came out of the last 52 and Mr. Jack was so 53 that he didn't stop 　54 about those things. Suddenly his wife looked up and said, "Look at that beautiful moon, Joe!" Without 55 , Mr. Jack answered, "All right, dear, How much is it?"
(　 ) 41. A. spent　 B. spending　 C. spend　 D. to spend
(　 ) 42. A. do　　 B. doing　　 C. does　　 D. did
(　 ) 43. A. for　　 B. when　 C. until　　　 D. because
(　 ) 44. A. busy　 B. working　 C. free　 D. out
(　 ) 45. A. took　 B. brought　 C. let　　　 D. showed
(　 ) 46. A. sold　 B. bought　 C. saw　　 D. paid
(　 ) 47. A. sold　　 B. carried　 C. bought　 D. paid
(　 ) 48. A. give　　 B. catch　　 C. find　　　 D. carry
(　 ) 49. A. stopped　 B. asked　 C. went　　 D. walked
(　 ) 50. A. isn't　　 B. doesn't　 C. aren't　　 D. don't
(　 ) 51. A. many　　 B. much　 C . beautiful　 D. dear
(　 ) 52. A. money　　 B. cinema　 C. shop　　 D. hour
(　 ) 53. A. tired　　　 B. sad　　 C. happy　　 D. sorry
(　 ) 54. A. to think　 B. thinking　 C. thought　 D. think
(　 ) 55. A. to think　 B. thinking　 C. think　 D. thought

Maria Gomez was born in Peru. She grew up in a small village. She 　1 when she was six years old. She went to elementary school, but she 　2 to high school. Her family was very 　3 ,and she had to go to work when she was thirteen years old. She 　4 in a shoe factory.

When Maria was seventeen years old, her family 　5 to the United States. First they lived in Los Angeles, and then they moved to San Francisco. When Maria 　6 in the United States, she was not happy.

She missed her friends in Peru, and she didn't 　7 a word of English. She began to study English at night, 8 worked in a factory during the day.

Maria studied very hard, and now she speaks English well. She's still 　9 at night, but now she is studying typing. She wants 　10 in Peru. Maria still misses her friends in Peru. But she is very happy now, and she hopes she will have a good future in the new country.

(　 )1.A.went to school B. go to school C. goes to school D. begins school

(　 )2.A.went　 B. didn't go　 C. began　　 D. wasn't

(　 )3.A.rich　　　 B. poor　　 C. happy　　　 D. glad

(　 )4.A.works B. is working　 C. is going to work D. worked

(　 )5.A.moved B. go　　 C. stayed　　 D. lived

(　 )6.A.reached　　　 B. arrived　 C. got　　　 D. moved

(　 )7.A.tell　　　 B. talk　　 C. know　　　 D. say

(　 )8.A.when　 B. so　 C. or　　 D. and

(　 )9.A.studying　　　 B. studied　 C. study　 D. studies

(　 )10.A.to do　　 B. do　　　 C. to be　　　 D. be