根据句意，从方框中选用合适的词并用其适当形式填空，其中有两项是多余的。（5小题，每小题2分，共10分）

How much sleep do we need? People are all different. Some people need only three or four hours of sleep a night. Others need ten hours of sleep a night. Most Americans sleep seven to eight hours a night.

Some people find it hard to fall asleep. About one in three(三分之一) Americans have a problem with sleep. Many of these people can not fall asleep. The name of this problem is insomnia(失眠症). Many famous people in history had insomnia. Some of these people have special(特殊的) ideas to make themselves sleep. Benjamin Franklin had four beds. He moved from bed to bed to fall asleep. Mark Twain lay(躺) on his side across the end of his bed.

根据短文内容，判断正(A)误(B)。（5分）

1.Different people need different amounts of sleep(睡眠时间).

2.Most Americans sleep more than 8 hours a night.

3.If a person has insomnia, he can never fall asleep.

4.About 1/3 of Americans have a problem with sleep.

5.Mark Twain had four beds to make himself sleep.

Sleep is very important. A person who does not sleep dies faster than a person who does not eat. We spend about a third()of our lives in sleep. That’s about 121 days a year!
How much sleep do we need? We are all different. A baby needs 16 hours of sleep every day. Children of 6 to 12 years of age need an average(平均)of 10 to 12 hours of sleep. Teenagers need 9 to 10 hours of sleep. An adult needs an average of 7 to 8 hours a day. There are some people who need only 3 hours of sleep; others need 10 hours of sleep. After the age of 50, the average sleep time goes down to 6.5 hours a day. We need less sleep as we get older.
About one in three Americans has a problem with sleep. Many of these people cannot fall asleep. The name for this problem is insomnia. Some people say, “I didn’t sleep all night.” But that’s not really true. They may sleep lightly and wake up several times. In the morning, they only remember the time they were awake, so they think they were awake all night.
This is not a new problem. Many famous people in history had insomnia. Some of these people had special ideas to make themselves sleep. Benjamin Franklin had four beds. He moved from one to the other to fall asleep. Mark Twain had a different way. He lay on his side across the end of the bed!
【小题1】How long do we spend in sleep a year?

How much sleep do we need? We are all different. Some people need only three hours of sleep a night. Others need ten hours of sleep a night. Most Americans sleep an average (平均) of seven to eight hours a night. After the age of fifty, the average sleeping time goes down to 6.5 hours a night.

Most people have a bad night when they can’t fall asleep (入睡). The name of this problem is called insomnia.

This isn’t a new problem. Many famous people in history had insomnia, too. Some of these people had special ideas to make them sleep. Benjamin Franklin, the famous inventor, had four beds. He moved(移动) from one to another to fall asleep. King Louis XI V (国王路易十四) of France had four hundred and thirteen beds and hoped to fall asleep in one of them. Mark Twain, the famous American writer, had a different way. He lay on his side across the end of his bed.

1.After the age of fifty, the average sleep hours are_______ a night.

A. 3 hours B. 7or 8 hours C. 6.5 hours D. 10 hours

2.Which of the following is TRUE?

A. King Louis XI V was an American.

B. Many famous people in history had a bad night when they couldn't fall asleep.

C. Benjamin Franklin was a famous writer.

D. Most young Americans sleep for an average of 6.5 hours a night.

3.Why did King Louis XI V of France have more than four hundred beds?

A. Because he hoped to fall asleep.

B. Because he was a famous inventor.

C. Because he had a lot of money.

D. Because he liked to lie on his side across the end of his bed.

4.What does the word insomnia mean (意思) in Paragraph (段落) 2?

A. too many beds B. sleep well C. can’t sleep well D. problems

5.What’s Paragraph (段落) 1 talking about?

A. The history of sleep. B. How much sleep do we need?

C. The story of famous people. D. Why can’t we sleep?