A new study suggests that the more teenagers watch television, the more likely they are to develop depression (抑郁症) as young adults.

The researchers used a national long-term survey of healthy young teenagers of about 13—16 to find out the relationship between media(媒体) use and depression. They based their findings on more than 4000 young teenagers 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. Here was the result. The young people spent five and a half hours a day using media and more than 2 hours of that was spent watching TV.

Seven years later, in 2001, more than 7% 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% 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 find out if watching TV causes depression directly. But one possibility, he says, is that it may take time away from activities that could help prevent depression, like sports and social activities. It might also prevent a person from sleeping well, he says, and that could have an influence.

The study was just published in the Archives of General Psychiatry.

In December, the journal Social Indicators Research published a study of activities that help lead to happy lives. Researchers from the University of Maryland found that people who describe themselves as happy spend less time watching television than unhappy people. The study found that happy people are more likely to be socially active, to read, attend social services and to vote.

完形填空 (30分)

阅读下面短文，从短文后所给的四个选项中，选出可以填入空白处的最佳选项。

A

In today’s world, pollution has become a serious problem.  51.  we know, air pollution is harmful to our health. However, not all people know that noise    52  also a kind of pollution and is harmful to human health.

People who work and live in noisy conditions may become   53  . For example,  many of the workers who   54. newspapers and books become deaf. Quite a few people living near   55 also have hearing lose. Recently it was reported that many teenagers in America  56 hear better than the old do, because these young people always listen to  57 pop music.  Making a loud noise in public is also a kind of pollution, it not only  58  others but also does great harm to hearing. Cars and machines also produce 59 noise. It makes people feel uncomfortable and unpleasant.  60  , it can cause them to be sick or deaf.Nowadays many countries are trying to solve all sorts of environmental problems, including noise pollution.

Singapore is not just a clean and tidy city in the world, it's also the greenest. There are (A) 三个原因why it is so.

Say "No" to waste

Singaporeans do not waste a single drop of water. They recycle water and save( B ) almost all rainfall. The water can be used for industry （工业） and even drinking.

Many "green" buildings

The Duke-NUS Graduate Medical School is one of the great examples of (C) pretty green design. It uses sustain-able design elements (可持续发展的设计元素) in its school building. ( D ) Singapore has many green buildings like this.

Get them while they're young

The Green Singapore 2050 (GS2050) is a community platform (社区平台) for young people to express their great worries about environmental problems, and think of solutions for(E) them. Why 2050'？It's because these young people will be the ones to run the country in 2050, and hopefully they will solve the world's problems.

1.将文中划线部分(A)译成英语。________________________

2.写出文中划线部分(B)和(C)的同义词或近义词。______________________

3.将文中划线部分(D)改写为There _______ many green buildings like this ______ Singapore.

4.文中划线部分(E)指代的是：__________________

5.从文中找出能说明本文主旨大意的中心词。_________________

Canada geese are large blue and white birds .When autumn arrives ,they have to fly south where the weather is warmer .The winters are so cold in Canada that the birds will die if they stay there .
Last spring ,Bill Lishman found sixteen young Canada geese on his farm “They had lost their parents , ”Bill thought . “These young birds won’t know what to do in the autumn .
Bill had a small plane and he decided to teach the birds to follow him .All through the summer ,he went on short trips in his plane and the young geese flew after him .”
When the cold weather arrived in autumn ,Bill flew to Virginia in the United States ,600 miles south from his home in Canada .The geese follwed him all the way .Bill flew to Virginia and returned home .
This spring ,Bill was waiting for the birds to come back .They didn’t arrive ,so Bill flew to Virginia to get them .He looked for them for two weeks but he couldn’t find them .
When he arrived back home ,Bill found the geese waiting for him .Then had found the way home without him !
【小题1】 Canda geese have to flly south______.