A recent study suggests that teens’ relationship with parents, friends and teachers may have a lot to do with why they don’t get a good night’s sleep.

David Maume, a sociologist and sleep researcher, analyzed federal health data, which interviewed 974 teenagers when they were 12, and then again at 15. He found that family dynamics (动态) have much to do with how well kids sleep. Teens, who had warm relations with their parents and felt like they could talk to them or their parents were supportive of them, tended to sleep better. However, families that were going through a divorce or a remarriage tended to affect teens’ sleep.

And problems at school also affected teens’ sleep. Feeling safe at school and having good relations with teachers tended to promote better sleep. As did good relationships with friends. Kids who took part in sports or other positive social activities or shared similar academic goals with their friends were also more likely to get a good night’s sleep.

These add up to what makes lots of sense: a general feeling of well-being helps teens sleep. If we’re happy and contented, we’re much more likely to sleep better than if we’re sad and anxious.

Now, of course, teens can hardly resist being drawn to their computers and social networking. Maume also found that when parents were strict not only about bedtime, but also about limiting technology, kids slept better. It’s a finding that seems obvious, but parents really do matter when it comes to health habits of their teenagers.

Clearly, teenagers aren’t getting 9 to 10 hours a night, which puts them at risk for all the consequences of lack of sleep, including poor academic performance, colds and stress.

1.What is the passage mainly about?

A. Teens’ sleep is linked to their relationship with people around them.

B. Lack of adequate sleep puts teens at risk of many bad consequences.

C. Modern technology has something to do with teens’ sleep problems.

D. It is necessary for teens to join in sports and positive social activities.

2.According to Maume’s analysis, who will probably have a poor night’s sleep?

A. Teens who feel like talking with their parents.                

B. Teens who have friends sharing their dreams.

C. Teens who feel contented about themselves.                          

D. Teens who lack a sense of security at school.

3. Para 5 functions as              .

A. a comparison        B. an introduction               C. a conclusion           D. an addition

4. Parents are supposed to               when their kids are growing up.

A. continue their broken marriage                      

B. allow children to decide when to sleep

C. limit teens’ using new technology          

D. force teens to have 10 hours’ sleep daily

单词拼写(共10小题;每小题1分,满分10分)

根据课文内容填空。

This means I could get up an hour later than ________ as schools in China begin before 8 a.m.

I’m trying to lose weight because I’m so ________ of my body.

Since I’m preparing to act in a new TV play, I’m taking weight –loss pills called Fat-Less, which are quite ________ among young women here.

As teenagers grow, it is ________ for them to become confused with the changing world both inside and outside of them.

Walking and riding your bike ________, and so do school sports.

Things change so quickly! I’m now in hospital ________ from liver failure.

Anyhow, they didn’t trust me. They don’t ________ an explanation. Let them think what they want.

When parents come to visit the school and talk to the teacher, we often play songs sung by students, and we also give messages to ________ the parents of events such as outings and school plays.

In our class there were 28 students. This is about the _________ size for British schools.

If you eat ______ and exercise regularly, you will lose weight, keep fit and feel great.

Five years ago, David Smith wore an expensive suit to work every day. “I was a clothes addict(迷),” he jokes. “I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled(皱的).” Today David wears casual clothes — khaki pants and a sports shirt — to the office. He hardly ever wears a necktie. “I’m working harder than ever,” David says, “and I need to feel comfortable.”
More and more companies are allowing their office workers to wear casual clothes to work. In the United States, the changes from formal to casual office wear have been slow. In the early 1990s, many companies allowed their workers to wear casual clothes on Friday (but only on Friday).This became known as “dress-down Friday” or “casual Friday”. “What started out as an extra one-day-a-week benefit for workers has really become an everyday thing,” said business adviser Maisly Jones.
Why have so many companies started allowing their workers to wear casual clothes? One reason is that it’s easier for a company to attract new workers if it has a casual dress code. “A lot of young people don’t want to dress up for work,” says the owner of a software company, “so it’s hard to hire people if you have a conservative dress code.” Another reason is that people seem happier and more productive when they are wearing comfortable clothes. In a study made by Levi Strauss and Company, 85 percent of employers said that casual dress has a side effect on work. Supporters of casual office wear also say that a casual dress code helps them save money. “Suits are expensive, if you have to wear one every day,” one person said. “For the same amount of money, you can buy a lot more casual clothes.”
【小题1】David Smith refers to himself as having been “a clothes addict” because ______________.

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Competitors who wear red win more than those that are dressed in any other color, according to a study in Germany.
【小题1】
Experts believe that red could make individuals and teams feel more confident as well as being perceived by others as more aggressive.
【小题2】On the other hand, the results could suggest that the success of those teams has given those that wear the red color more confidence.
The study, by German sports psychologists at the University of Munster, was reported in New Scientist magazine. They showed video recordings of taekwondo(跆拳道) matches to 42 experienced referees(裁判). One fighter wore blue and the other wore red.
They then showed them the same recordings but digitally manipulated(操纵) the clothing to exchange the colors. 【小题3】
“If one competitor is strong and the other is weak, it won’t change the outcome of the fight,” said Norbert Hagemann, who led the study. “【小题4】”
In 2004 scientists at Durham University also looked at how color influenced sporting competitiveness. They analyzed Olympic contest sports such as boxing, tawkwondo, and freestyle wrestling and found that nearly 55 percent of which were won by the competitor in red.
“【小题5】” said Robert Burton, one of the researchers.
It is the color of fire and is often associated with energy, danger, strength, power, and determination.
The fighters wearing red were given an average of 13 percent more points than when they wore blue.
C. The study shows that football shirts from worldwide teams such as Arsenal, Liverpool, sell successfully.
D. It is reasonable that wearing red makes individuals feel more confident, although this hasn’t yet been tested.
E. Researchers found that those who wear red tops, jackets or clothing score 10 percent more in any competition than if they were in another color.
F. The findings could explain why Manchester United, Liverpool and Arsenal have been so successful.
G. But the closer the levels, the easier it is for the color to tip the scale