Do you sleep well?If your answer is no, the following may help you.

Set a certain bedtime and rising time

A certain bedtime and rising time can help you build up your body clocks. Set a bedtime which is good and natural for you. Don't change your bedtime and rising time on weekends.

Avoid (避免) exciting activities just before sleep

Exciting activities get your mind running. At the same time, if you make tomorrow's plan or read an exciting story before turning off the light, it doesn't give you enough time to relax before you try to sleep.

Keep the bedroom for sleeping only

It's a bad habit for you to use your bedroom as a place to eat, watch TV, read, talk on the phone, or discuss important matters with your family members. Stop that habit to get better sleep.

Don't go to bed too early

Your body usually lets you sleep only the number of hours it needs. You should decide how many hours you must sleep not to have daytime sleepiness.

Take a warm shower before your bedtime

A twenty-minute warm shower at a temperature of about 45℃-50℃ not only is great relaxation at day's end, but also raises your body temperature by several degrees. The coming drop in temperature of your body will make you feel sleepy.

1.If you want to build up your body clocks, you should .

A. set a certain bedtime and rising time

B. not go to bed too early or too late

C. keep the bedroom for sleeping only

D. take a warm shower before sleeping

2.Why should you avoid exciting activities just before sleep?

A. Because they will get your mind running.

B. Because you have to make tomorrow's plan.

C. Because you should read an exciting story.

D. Because you will have to turn off the light.

3.What will make you feel sleepy according to the passage?

A. Taking a cold shower. B. The drop in your body temperature.

C. Your daily experience. D. Raising your body temperature.

David walked down the street. All he wanted to do was to play basketball with Jim. But his mother told him to return his sister’s books to the library on his way to Jim’s house.

In his eyes, books and summertime just don’t go together. He thought he read a lot during the school year. And he never went into a library. Today he’d just drop the books off in the outside return box, but it was locked. He had to go inside to return them.

David walked inside the building a few minutes before closing time. He put the books into the return box. After a quick drink of water and a short stop in the toilet, he’d be on his way to meet Jim. He walked out of the toilet. The library lights were turned off. He was locked—in a library.

David tried to use the telephone, but he couldn’t find one. As the sun began to set, he searched for a light and found a little one on the desk. He used a pencil to write a note on a big piece of paper. It read, “I’m locked inside. Please call for help.” He put it on the front door. Surely, someone passing by would see it. He then turned his attention to the library itself.

He was surprised to find that this place was not so bad. Rows and rows of books! When he saw a book about Michael Jordan on the desk, he picked it up. He opened the book and began to read. He felt that being locked in the library didn’t seem to be such a terrible thing.

1.What did David’s mother want him to do?

A. Play basketball with Jim. B. Take a walk in the street.

C. Read books in the library. D. Return his sister’s books.

2.Which of the following sentences could be added to the chart?

A. He searched for a light. B. He put the books into the return box.

C. He had a quick drink of water. D. He turned his attention to the library.

3.What did David find after he was locked in the library?

A. He became interested in this place. B. He was very afraid of the dark.

C. His mom was worried about him. D. His friend became nervous about him.

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