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(確保) bedtime. Instead, it may be that biologically(生物學上)these sleepyhead(貪睡者)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(遷移)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.”

51. 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

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

53. 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.

54. What is the test mainly about?

A young man was going to join the army and had to take a medical examination. The doctor was sitting at a desk when he went in. He said to the man, "Take your coat and shirt off, and sit on that chair."

The young man did so. The doctor looked at him for a moment without getting up from his chair and then said, "All right. Put your clothes on again."

"But you haven't examined me at all!" the young man said in surprise.

"There is no need to do so," the doctor said with a smile. "When I told you to take your coat and shirt off, you heard me all right, so there is nothing wrong with your ears. You saw your chair, so your eyes are good. You could take your clothes off and sit on the chair, so you must be in good health. And you understood what I told you to do and did it without a mistake..."

51. Why did the young man take a medical examination?

　 A. He had hurt his ear.　　　　　　　　 B. He hoped to join the army.

　 C. He wanted to get some medicine.　　 D. He wondered if he was in good health.

52. The doctor asked the young man to take his coat and shirt off to test

　　 A　his eyes　　　　　　　　 　　　　　　　　 B. his arms

　 C. his sense of hearing　 　　　　　　　　　　　　 D. his sense of touch

53. Which of the following can be chosen to complete the underlined sentence?

　 A. so I feel sorry for you

　 B. so you are too weak to join the army

　 C. so you need another medical examination

　 D. so you must be clever enough for the army

54. The best title for this story is"_______ ".

　 A. A Strict Doctor　　　　　　　 　　　　 B. A Special Medical Examination

　 C. A Serious Mistake　　　　　　　　 　 D. A Smart Young Man

Claire Lee, a girl, lives in Boston, Massachusetts, in the U. S. Last Thursday, she didn’t go to school. She went to work with her mother instead. Every year, on the fourth Thursday in April, millions of young girls go to work. This is Take Our Daughters to Work Day. The girls are between the ages of 9 and 15. They spend the day at work with an adult, usually a mother, father, aunt, or uncle. They go to offices, police stations, laboratories, and other places where their parents or other family members work.

The Ms. Foundation, an organization for women, started the program about ten years ago. In the U. S., many women work outside the home. The Ms. Foundation wanted girls to find out about many different kinds of jobs. Then, when they grow up, they can choose a job they like.

Claire’s mother works in a company. Claire says, “It was very exciting for me to go to the company with my mum. I saw a lot of people doing different jobs. ” Many businesses have special activities for girls on this day. Last year, Claire went to work with her aunt at the University of Massachusetts. In the engineering department, the girls learned to build a bridge with toothpicks（牙簽）and candy. In the company, they learned to type pictures.

Right now, Claire does not know what job she will have when she grows up. But because of Take Our Daughters to Work Day, she knows she has many choices.

(   )50. According to the passage, Take Our Daughters to Work Day is ________.

A. on every Thursday in April    

B. on the fourth Tuesday in April

C. on every Tuesday in April     

D. on the fourth Thursday in April

(   )51. We can infer that Claire’s mother is ________.

A. a bus driver.        B. a teacher.           C. a manager.         D. a policewoman.

(   )52. According to the passage, Which of the statement is NOT true about Claire ________.

A. she learned to type pictures     

B. she worked as a singer

C. she went to work with her mum    

D. she used toothpicks to build a bridge

April 27 is a special day in Britain. It’s called Take Our Daughter to Work Day. It was brought to Britain in 1994 from America. On that day thousands of girls take a day off school and go with one of their parents to their work places. By doing this, it can teach girls more about the society where they live.

Now the girls can have a close look at what their parents are doing. This may help them to be calmer when they have to choose a job. Mary experienced a day of work at her mother’s office. This helped her understand her mother’s work better. She said that this made her feel more confident about her future.

Schools and many companies support the activity, too. Some schools even make the day a necessary part of school life.

Experts think that girls with more self-confidence are more likely(可能的)to be successful than common girls. If parents can set good examples both at work and at home for them, they will do better than others. Take Our Daughter to Work Day is surely a step in the right direction.

51.Where was Take Our Daughter to Work Day brought?

A. From America.          B. From China.

C. From Canada.           D. From Australia.

52. On Take Our Daughter to Work Day, thousands of girls_______.

A. go on a journey with their parents

B. have a party with their friends at home

C. go to the work places of one of their parents

D. take part in a school activity freely

53. What’s the advantage by doing such an activity?

A. It can help girls understand their parents’ work better.

B. It can teach girls more about the society.

C. It can make girls feel more confident about their future.

D. All of the above.

54. Which of the following is NOT true about Take Our Daughter to Work Day?

A. It is a special activity on April 27 in Britain.

B. Schools and many companies support this activity

C. Many girls like this day because they won’t go to school.

D. Some schools even make the day a necessary part of school life.

55. According to the experts, being______ is the most important to girls in their future.

A. smart and careful     B. confident

C. hard-working            D. friendly

    Hundreds of years ago, a Roman army came north from England to make war on Scotland. The Scots, a brave people, loved their country very much. They fought hard to drive the enemy out of Scotland, but there were too many Romans. It looked as if the Romans would win.

    One night, the leader of Scots marched his soldiers to the top of a hill. "We will rest here tonight, my men.”  he said. Tomorrow we will fight one more battle. We must win or we will die."

    They were all very tired, so they ate their supper quickly and fell asleep. There were four guards on duty, but they, too, were very tired, and one by one, also fell asleep.

    The Romans were not asleep. Quickly they gathered at the foot of the hill. Slowly they climbed up the hillside, taking care not to make a sound. Closer and closer they came to the sleeping Scots. They were almost at the top. A few minutes more, the war would be over.  Suddenly, one of them put his foot on a thistle（薊）.He cried out and his sudden cry woke the Scots. In a moment, they were on their feet and ready for battle. The fighting was hard but it did not last long. The Scots wiped out the Romans and saved their country.

     The thistle is not a beautiful plant. It has sharp needles all over it. Few people like it. But the people of Scotland liked it so much that they made it their national flower.

      51.  Hundreds of years ago there was a war between ________            .

          A. Roman army and North England           B. Roman army and the Scots

          C. England and Scots                      D. a brave people and the Scots

     52.  "We must win or we will die." What the leader of the Scots said means________

          A. they were sure to win

          B. they couldn't escape from death

          C. they would win and then they would die

          D. they must try hard to win, otherwise they would be killed

     53.  The Romans climbed up the hill quietly because ________.

          A. they didn't want to wake the Scots

          B. they wanted to reach the top

          C. they wanted to catch the four guards first

          D. they were afraid of the sharp needles of the thistle

     54.  The people of Scotland made thistle their national flower because ________

          A. it is a beautiful plant

          B. it is fresh and lovely

          C. it had so many sharp needles all over it

          D. it was the thistle that helped the Scots to win the battle