In China , more and more middle school students are getting shorter sleeping time than before. Most students sleep less than nine hours every night, because they have much homework to do. Some homework is given by their teachers, and some by their parents. Also, some students don't know how to save time. They are not careful enough while they do their homework, so it takes them a lot of time. Some students spend too much time watching TV or playing computer games. They stay up (熬夜) very late. Some students have to get up early every morning on weekdays to get to school on time by bus or by bike. It can be a long way from home to school.

　　Schools and parents should cut down some of the homework so that our children can enjoy more than nine hours of sleep every night for their health. For children, we should make best use of our time. When we have enough time for sleeping, we will find it much better for both our study and health.

1.What makes most students sleep less than nine hours every night?

　　    A. Watching TV.

B. Playing computer games.

　　    C. Doing their homework.

D. Doing housework.

2.Who else gives children some homework to do except their teachers?

　　   A. Their parents.　　　　　　　　　　　B. Other students.

　　   C. The children themselves.　　　　　　 D. Nobody else.

3.How many hours of sleep is good for students' health?

　　  A. Less than 9 hours.　　B. Over 9 hours.　　

C. Only 9 hours.　    　D.8 hours.

4.What would happen to a student who often goes to bed late and gets up early?

　　   A. He would fall asleep in class.

B. He would do well in study.

　　   C. He would finish his homework fast.

D. He would have good health.

5.Which of the following is NOT true?

　　   A. Some students are so careless that they spend lots of time on their homework.

　　   B. All the students stay up late for their homework.

　　   C. Children should be given less homework.

   D. Schools and parents should take care of children.

In China, more and more middle school students are getting shorter sleeping time than before. Most students sleep less than nine hours every night, because they have much homework to do. Some homework is given(被给出) by their teachers, and some by their parents. Also, some students don't know how to save time. They are not careful enough while they do their homework, so it takes them a lot of time. Some students spend too much time watching TV or playing computer games. They stay up (熬夜) very late. Some students have to get up early every morning on weekdays to go to school on time by bus or by bike. It can be a long way from home to school.

Schools and parents should cut down (减少)some of the homework so that our children can enjoy more than nine hours of sleep every night for their health. For children, we should make best use of our time. When we have enough time for sleeping, we will find it much better for both our study and health.

根据短文内容，选择最佳答案，并在答题卷上按要求作答。

71.What makes most students sleep less than nine hours every night?

　 A. Watching TV.　　　　　　　　　　 B. Playing computer games.

　 C. Doing their homework.　　　　　　 D. Doing housework.

72.Who else gives children some homework to do？

A. Their parents.　　　　　　　　　　　B. Other students.

C. The children themselves.　　　　　　 D. Nobody else.

73. How many hours of sleep is good for students' health?

A. Less than 9 hours.　　　　　　　　　 B. Over 9 hours.　　

C. Only 9 hours.　　　　　　　　 　　 D. 8 hours.

74. Sleeping enough is much better for 　　　　　　　　 .

　 A. our study 　　　　　　　 B. nobody

C. our health　　　　　　　　 D. both our study and health

75.Which of the following is NOT true?

　 A. Students should have enough time for sleeping.

　 B. All the students should stay up late for their homework.

　 C. Children should be given less homework.

　 D. Schools and parents should take care of children.

My father woke me up early one summer morning when I was fourteen and announced: “Get up, you're going with me to cut the grass in the garden. ”

　　The idea that my father thought I was old enough to help him in his business made me feel proud and excited. From sunup to sundown, my father, my younger brother and I worked in the large garden. By the end of the day I was too tired to say a word but I felt good. This was my first time to help my father in his business. I got $ 6 for my work that day.

　　One day my father found some leaves I had missed and pulled me aside. “Take away these leaves! ”he said, “and don't make me have to tell you to do it again.” The message was clear. Today I value(珍视)the importance of doing a job well the first time. It will never fail to impress(给……留下印象） the person you are working for.

　　After two years, my father told me and my brother that he felt we were old enough to cut the grass by ourselves. Every Saturday during my last two years of high school, we set off early in the morning with the same strong wish we had gained while working under our father.

　　Looking after the garden was neither exciting nor high paying, but that didn't matter. It taught me that any job was a good job and that whatever I was paid was more than I had before.

　　A newspaper reporter once asked me how someone could possibly live with hard work and low pay. “If you're only thinking about hard work and money, you probably don't want to do any better than you are doing.” I answered. In every job, from cutting the grass to washing dishes, I've learned much. I've learned something that helps me in my next job.

　　If you work hard enough, you can learn from any job you do.

46. The writer felt proud and excited when he was asked to cut the grass because he thought______.

　　 A. he could cut the grass himself

　　 B. he could make much money

　　 C. he could enjoy sunup and sundown

　　 D. he could help his family

47. The underlined word "message" in the passage probably refers to_____.

　　 A. not leaving leaves behind

　　 B. giving no excuse for your mistakes

　　 C. doing a good job at the very beginning

　　 D. missing things which can be found out

48. When the writer finished high school, maybe he was _____ years old.

　　 A. fourteen     B. eighteen        C. twenty　　      D. twenty-two

49. Which of the following does the writer probably think is the most important?

　　 A. Keeping learning from any job you had.

　　 B. Asking no money for work.

　　 C. Finishing work as quickly as possible.

　　 D. Keeping looking for different jobs.

50. The writer probably thinks his father is_____.

　　 A. lazy　　      B. helpful　　    C. careless        D.interesting

Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries slowly.

　 You probably know how to ride a bike safely. Now learn to use a computer safely.

Your eyes

　 Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters from the screen. Remember to look away from it sometimes. This gives your eyes a rest.

　 When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect on (反射) the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.

Your hands and wrists (手腕)

　　Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time, follow these three rules: 1) Rest your wrists on something. 2) Keep your elbows (肘部） at the same height as the keyboard. 3) Stop something and exercise your hands, wrists and fingers in a different way.

Your back

　　Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should all be in front of your eyes. Your forearms（前臂）, wrists, hands and the upper（上部） part of your legs should all be parallel (平行) to the floor. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and necks.

　 Enjoy your computer, but use it safely.

1.A computer screen may injure your eyes if __________.

A．you sit 60 centimeters away

B．you remember to look away

C．your eyes are too close to it

D．the window is on your left or your right

2.Hand and wrist injuries are caused when you _________.

A．get plenty of exercise

B．move in the same way again and again

C．rest your wrists on something

D．keep your elbows as high as the keyboard

3.Your eyes and hands will be safe if __________.

A．you work near a window

B．you often take a rest from working

C．you use a keyboard for a long time

D．the window is behind you

4.It is good for your back and neck if you sit __________.

A．in the right way

B．for many hours

C．with the screen below your eyes

D．with your back leaning forward

5.What would be the best title for the passage?

A．How to protect your eyes

B．How to protect your hands and wrists

C．How to use a computer safely

D．How to protect your back