题目内容
These young trees must ______.
|
A．look after well |
B．be look after well |
C．be looked well |
D．be looked after well |
D
【解析】略
| A．for | B．because | C．so that | D．unless |
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 !
1. Canda geese have to flly south______.
|
A．in spring |
B．before autumn |
|
C．in the winter |
D．after summer |
2.The young birds_____,so they could follow Bill to Virginia .
|
A．were well trained |
|
B．went on trips in Bill’s plane |
|
C．liked Bill |
|
D．lost their parents |
3.Bill took the birds to virginia because ______.
|
A．it’s warmer there |
|
B．it’s 600 miles away from his home |
|
C．he wanted the birds to fly after him |
|
D．it’s a beautiful place in the United States |
4.The birds returned to Bill’s home_______.
|
A．in Bill’s plane |
B．by themselves |
|
C．in the winter |
D．in the autumn |
5..From the passage we can know that Bill _____.
|
A．likes the birds very much |
B．in an American bird-lover |
|
C．stayed in Virginia with the birds |
D．taught the birds to fly |
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.
|
Process of the study |
Details |
|
The purpose of the research |
To find out 1. between media use and depression |
|
At the beginning of the research |
2. was made among over 4000 young people who were not depressed. |
|
The result of the survey |
These young people spent five and a half hours a day in using media and they spent over 2 hours or that 3. |
|
Seven years later |
Researchers found 7% of the young people had a sign of depression. Every extra hour of watching TV meant an 8% increase in the chances of developing signs of depression. |
|
Results of the study |
1. Watching TV might have 4. and it may take time away from activities and sports. 2. Young men get more chance than young women to develop depression. 3. The reason some people get depression is that 5. |