BEIJING—No Car Day was first started by 34 cities in France on September 22,1998.It was started to protect the environment.By now, more than 1,000 cities around the world have had a No Car Day.

The first No Car Day in China was in Chengdu in 2001.Other cities, including Taipei, Shanghai and Wuhan, also support(支持) the day.

In Beijing, more and more people are joining in the activity.It asks drivers to leave their cars at home for one day each month and walk or ride a bike to work.It also calls on Beijingers not to use cars on June 5(World Environment Day).The slogan(口号) for the day is, “If we drive for one less day, we can have one more nice day.”

So far, more than 200,000 drivers have shown their support.“We can’t control the weather, but we can chose not to drive,” said Wu Zonghua, a car club chairman.Beijing is trying to have 238 blue sky days this year.In the first quarter of this year, Beijing only had 52 blue sky days.This was 11 days less than the number for the same period last year.Much of the dust(灰尘) comes from the desert(沙漠), but cars cause most of the air pollution(污染).We must do more for no Car Day.

1.There are       cities in China that support No Car Day according to the passage.

A．three            B．four              C．five              D．six

2. The activity of No Car Day encourages Beijing drivers       .

A．not to work on No Car Day

B．to enjoy having a day off

C．to leave their cars at home for repair

D．to ride a bike or walk instead of driving to work

3.According to the passage there were       blue sky days in the first quarter of last year in Beijing.

A．52               B．63               C．41               D．238

4.The air pollution in Beijing is mostly caused by       .

A．cars              B．dust              C．weather          D．rubbish

5.We can know from the passage that       .

A．more and more people in Beijing are joining car clubs

B．people will have one more World Environment Day each month

C．more and more people won’t drive on No Car Day in Beijing

D．more people in the world won’t drive any more

A Brown University sleep researcher has some advice for people who run high schools: Don’t start classes so early in the morning. It may not be that the students who nod off at their desks are lazy. And it may not be that their parents have failed to enforce(确保) bedtime. Instead, it may be that biologically(生物学上)these sleepyhead(贪睡者)students aren’t used to the early hour.

　　“Maybe these kids are being asked to rise at the wrong time for their bodies,” says Mary Carskadon, a professor looking at problem of adolescent (青春期的)sleep at Brown’s School of Medicine.

　　Carskadon is trying to understand more about the effects of early school time in adolescents. And, at a more basic level, she and her team are trying to learn more about how the biological changes of adolescence affect sleep needs and patterns(方式).

　　Carskadon says her work suggests that adolescents may need more sleep than they did at childhood, no less, as commonly thought.

　　Sleep patterns change during adolescence, as any parent of an adolescent can prove. Most adolescents prefer to stay up later at night and sleep later in the morning. But it’s not just a matter of choice---their bodies are going through a change of sleep patterns.

　　All of this makes the transfer(迁移)from middle school to high school---which may start one hour earlier in the morning----all the more difficult, Carskadon says. With their increased need for sleep and their biological clocks set on the “sleep late, rise late” pattern, adolescents are up against difficulties when they try to be up by 5 or 6 a.m. for a 7:30 a.m. first bell. A short sleep on a desktop may be their body’s way of saying. “I need a timeout.”

1.Carskadon suggests that high schools should not start classes so early in the morning because _______.

A．it is really tough for parents to enforce bedtime

B．it is biologically difficult for students to rise early

C．students work so late at night that they can’t get up early

D．students are so lazy that they don’t like to go to school early

2.The underlined phrase nod off most probably means _______.

A．turn around       B．agree with others   C．fall asleep         D．refuse to work

3.What might be a reason for the hard transfer from middle school to high school?

A．Adolescents depend more on their parents.

B．Adolescents have to choose their sleep patterns.

C．Adolescents sleep better than they did at childhood.

D．Adolescents need more sleep than they used to.

4.What is the test mainly about?

A．Adolescent health care.

B．Problems in adolescent learning.

C．Adolescent sleep difficulties.

D．Changes in adolescent sleep needs and patterns.

完形填空(每空1词，共10分)
Of all the things we eat and drink，water is the  1 important. The human body can go 2  food for a long time，but two  3 three days without water could make people  4 .
A lot of people don’t understand how  5 water the human body needs  6 well and many people don’t drink enough，especially in  7 weather. Most people drink  8 they are thirsty but in fact they need more water，especially when they take  9 .
A man’s body is 65 to 75 percent of  10 . If we don’t have enough water. We fell tired and may become ill.
(   )1.A.more          B. most            C. less                D. least
(   )2.A.with          B. on              C. without             D. by
(   )3.A.or                B. and             C. of              D. but
(   )4.A.died          B. to die          C. dies                D. die
(   )5.A.many          B. little          C. few                 D. much
(   )6.A.work          B. working         C. to work             D. works
(   )7.A.hot           B. cold                C. cool            D. warm
(   )8.A.so                B. that            C. when            D. since
(   )9.A.fun           B. exercise            C. exercises       D. work
(   )10.A.blood            B. water           C. air             D. food