A
Good health is the most valuable thing a person can have, but one cannot take good health for granted. It is important to remember that the 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 (营养) is important for good health. Your body cannot work well unless it receives the proper kind of “fuel” (燃料). Don't eat too much food with lots of sugar and fat. Eat plenty of food 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 (人的个性). 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.
Finally, get plenty of exercise. Exercise firms the body, strengthens the muscles, and prevents you from gaining weight. It also improves your heart and lungs. If you follow a regular exercise programme, you will probably increase your lifespan (寿命). Any kind of exercise is good. Most sports are excellent for keeping the body in good shapes: 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 food, 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．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 food nutrition
D．we must try to sleep now and then
答案：C
解析：细节理解题。由第二段第一句“Proper nutrition (营养) is important for good health.”这一信息可知答案。
2．Sleeping less for a long time ________.
A．can keep healthy
B．is no good for you
C．gets you more energy
D．will keep your personality
答案：B
解析：推理判断题。由第三段的内容可知长期睡眠不足会导致人疲劳、易怒、没有精神，故无益于人的身体健康。
3．The writer explains ________ in this passage.
A．how to eat
B．the importance of doing exercise
C．how to keep healthy
D．what to eat
答案：C
解析：细节理解题。由第一段第一句“Good health is the most valuable thing a person can have, but one cannot take good health for granted.”这一信息，以及本段最后的“...eat right food, get enough sleep, and exercise regularly.”可知A、B、D三项只是其中的一部分内容。
