大学英语作业2答案

2010上半年大学英语(3)第2次作业大学英语（三）

第一部分：交际英语（每题3分，共15分）

1. — _____A_______________

— Well, they got there last Wednesday. So about a week.

A. How long have your parents been in Paris?

B. When did your parents arrive at Paris?

C. Did your parents arrive at Paris last Wednesday?

D. When will your parents go to Paris?

2. —My mother is pretty sick.

—____C______________.

A. Good for her.

B. Oh, it’s not

true.

C. That’s too bad.

D. Why s

3. — I'd like to say goodbye to everyone. My plane leaves at 7:25.

— Well, ______C________________.

A. sounds great

B. good for

you

C. goodbye and have a good trip

D. it’s emergent

4. — Good morning, sir. Can I help you?

— _______B__________.

A. Yes, why not?

B. Yes, is there a bank

near here?

C. Are you kidding?

D. You are welcome!

5. — Please help yourself to some seafood.

— ______D_________.

A. No, I can’t.

B. Sorry, I can’t

help.

C. Well, seafood don’t suit.

D. Thanks, but I don’t

like seafood.

第二部分：阅读理解（每题3分，共30分）

Passage 1

A new study suggests that the more teenagers watch television, the more

likely they are to develop depression as young adults. But the extent to

which TV may or may not be to blame is a question that the study leaves

unanswered.

The researchers used a national long-term survey of adolescent health to

investigate the relationship between media use and depression. They based

their findings on more than four thousand adolescents who were not depressed when the survey began in 1995.

As part of the survey, the young people were asked how many hours of television or videos they watched daily. They were also asked how often they played computer games and listened to the radio. Media use totaled an average of 5.5 hours a day. More than 2 hours of that was spent watching TV.

Seven years later, in 2002, more than 7 percent of the young people had signs of depression. The average age at that time was 21. Brian Primack at the University of Pittsburgh medical school was the lead author of the new study. He says every extra hour of television meant an 8 percent increase

in the chances of developing signs of depression. The researchers say they did not find any such relationship with the use of other media such as movies, video games or radio. But the study did find that young men were more likely than young women to develop depression, given the same amount of media use.

Doctor Primack says the study did not explore if watching TV causes depression. But one possibility, he says, is that it may take time away

from activities that could help prevent depression, like sports and socializing. It might also interfere with sleep, he says, and that could

have an influence.

D 6. According to the passage, the researchers have found

________________________.

A. in what way watching TV causes depression

B. why teenagers like to watch TV

C. the relationship between depression and the use of all forms of media

D. the relationship between depression and watching TV

B 7. As used in paragraph 2, the word “adolescent” means ________________.

A. teenager

B. media use

C. young adult

D. average age

C 8. About the methodology of the research, the writer has mentioned all of the following except that _______________.

A. the research was made nationwide

B. the research was made between 1995 and 2002

C. the adolescents in the survey were all depressed

D. the adolescents were asked how they used various types of media

B 9. Which of the following is true about the findings of the research?

A. all the young people in the survey had signs of depression