1. (2023八上·重庆市月考)  阅读下列材料，从A、B、C、D四个选项中选出最佳答案。

Everyone wants to be healthy. Then do you know how to keep in good health? You may say, "Having a balanced diet(平衡的饮食) and doing exercise can help us. " But I think good sleep is 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 not happy and tired. Then they may have some other problems.

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

 Sleep in a quiet room. 

 Do some exercise before going to bed. It'll make you sleepy.

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

 Have a glass of milk. It's really good for sleeping.

 Don't think about boring things. Try to be relaxed.

1. （1） The writer thinks people should ____ to keep healthy. 

   A . eat well B . sleep well C . do exercise D . work
3. （2） What's the meaning of the underlined sentence?

   A . Although they are very tired the next day, they can work well. B . They are so tired that they can't work well the next day. C . They don't go to work the next day because they're too tired. D . The next day they aren't tired and they can work well.
5. （3） Which of the following can NOT help people sleep well?

   A . Doing exercise. B . Washing feet in warm water before sleep. C . Drinking milk. D . Thinking about boring things.
7. （4） What's the main idea of the passage?

   A . Good sleep is very important to your health. B . Everyone wants to be healthy. C . A balanced diet is important to your health. D . Doing exercise is good for your health.