Everyone wants to be healthy. Then do you know how to keep in good health? You may say, “Having a balanced diet and doing exercise can help us.” I agree with you.   ①   In fact, good sleep is also very important.

Lots of people in the world have sleep problems. They can’t sleep well at night. The next day they are too tired to work well. They are unhappy and stressed out. Then they may have some other health problems.   ②  

How can people sleep well at night? Here are some good ideas.   ③ 

● Sleep in a quiet room.

● Do some exercise before going to bed. It’ll make you sleepy(瞌睡的).

● Wash your feet in warm water before you go to bed.

● Have a glass of milk. It’s pretty good for sleeping.

● Don’t think about boring things.   ④   Try to be relaxed.

（   ）31. The writer(作者) thinks people should ______ to stay healthy.

A. eat well and do exercise       B. sleep well   

C. have more vegetables         D. eat and sleep well, and do exercise

（   ）32. We can put “For example, heart disease(心脏病) and headaches.” in ______.

A. ①       B. ②         C. ③         D. ④

（   ）33. What’s the meaning(意思) of the underlined sentence(画线句子)?

A. Although they are very tired the next day, they can work well. 

B. They are too tired and can’t work well the next day.

C. They don’t go to work the next day because they’re too tired.

D. They are very tired the next day, but they try to work hard.

（   ）34. Which of the following can NOT help people sleep well?

A. Doing exercise.                 B. Drinking milk.     

C. Thinking about boring things.    D. Putting the feet in warm water.

（   ）35. What’s the best title(题目) of the passage?

A. Do you have a good sleep at night?

B. Bad sleeping brings some health problems

C. A balanced diet is important to your health

D. The importance of milk