阅读理解。

     Good health is the most valuable thing a person can have. It

is important to remember that body needs proper care in order to

be healthy. There are three things that a person can do to help stay

in good shape: eat right food, get enough sleep, and exercise

regularly.

     Proper nutrition is important for good health. Your body

cannot work well unless it receives the proper kind of "fuel".

Don't eat too much food with lots of sugar and fat. Eat plenty of

foods high in protein,like meat, fish, eggs and nuts. Vegetables

and fruits are very important because they provide necessary

  vitamins and minerals. However, don't overeat. It is not helpful to

be overweight.

     Getting the proper amount of sleep is also important. If you

don't get enough sleep,you feel tired and easily get angry. You

have no energy. Over a long period of time a little amount of sleep

may even result in a change of personality (个性). Be sure to

  allow yourself from seven to nine hours of sleep each night. If you

  do,your body will feel strong and refreshed,and your mind will be

sharp.

     Fmally ,get plenty of exercise. Exercise makes the body strong

and prevents you from putting on weight. It also improves your

  heart and lungs. If you follow a regular exercise program,you will

  probably increase your life-span (寿命) . Any kind of exercise is

good. Most sports are very good for keeping the body in good

shape: basketball, swimming, bicycling, running and so on, are

  good examples. Sports are not only good for your body,but they are

enjoyable and interesting too.

      If everybody were to eat the right foods,get plenty of sleep

and exercise regularly,the world would be a happier and healthier

place. We would all live to be much older and wiser.

1. The passage mainly tells us that _____.  

A. how we can keep fit

B. why health is important for us

C. nutrition is important for health

D. sleep is more important than nutrition and exercise

2. In order to keep good health , _____ .    

A. we should eat a lot of sweets

B. one needs a large amount of fat

C. people should eat according to the foods' nutrition

D. we must try to sleep now and then 

3. Eating more and sleeping less______ .  

A. can keep healthy

B. are not good for you

C. get you more energy

D. will keep your personality 

4. The title of the article should be _______.   

A. Eating Exercising

B. How Vitamins Work in Man's Body

C. How to Stay Healthy

D. Sleeping Well