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”. Don't eat too much food with lots of sugar and fat. Eat plenty of foods high in protein (蛋白质), like meat, fish, eggs and nuts. Vegetables and fruits are very important because they provide necessary vitamins (维他命) 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 program, you will probably increase your life-span (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 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.According to the passage _________.

A．we should always keep fit

B．if we were healthy, we could spend our days in doing things with less sleep

C．one can eat a lot to stay in good shape

D．one needn't take any exercise if he is healthy

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 food’s nutrition

D．we must try to sleep now and then

3. Eating more and sleeping less________.

A．can keep healthy                       B．is no good for you

C．gets you more energy                    D．will keep your personality

4.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

5. The title of the article should be___________ .

A．Eating and Exercising                     B．How Vitamins Work in Man's Body

C．Staying Healthy                         D．Sleeping Well

 

阅读理解

　　Read the following interview with Dr. John Bass, an international shark (鲨鱼) specialist who has spent many years studying sharks:

　　First of all, doctor, are all sharks dangerous?

　　No, they aren’t. There are about 250 different kinds of sharks, but fewer than 30 of them are dangerous to humans. Certain sharks are very aggressive(好斗的) and we should fear them, but the danger of shark attacks is much lower than most people think.

　　So which sharks are dangerous?

　　The Great White shark is the most dangerous. Then there is the Tiger shark, which other sharks are afraid of, and the Blue shark. Both of them are very fast and dangerous.

　　Which are the biggest and the smallest sharks?

　　The Whale shark is the biggest shark in the world. It grows up to 15m in length and weighs as much as six large cars. The smallest shark, which is found near Japan, could fit into the palm of your hand because it is only 15－20cm long.

　　Do all sharks have teeth?

　　Yes, they do. Most sharks have hundreds, sometimes even thousands, of sharp teeth. These are arranged in rows of four or more. They fit quite loosely in the jaw. When the front ones break off or fall out, spare teeth move forwards from the rows behind. Sharks get a new set of teeth every two weeks. In 10 years, a Tiger may lose as many as 24,000 teeth!

　　That’s a lot of teeth! What kind of food do sharks eat?

　　Most sharks feed on small fish, and they keep the oceans healthy by eating sick and injured fish. However, hungry sharks will eat almost anything, including smaller sharks and even rubbish. Inside one Tiger which was found, there was a tin can, a bicycle tyre, a leather wallet and an alarm clock!

　　And how do sharks find their food, doctor?

　　A shark’s sense of smell is excellent. It will follow the smell of blood across thousands of meters of ocean. They also see well, and they have good hearing. Sharks can feel movement in water very easily too, and it is possible for them to feel a fish moving as far as 30m away.

1．Most types of sharks are ________.

[　　]

2．A shark’s best sense which helps it most in finding food is its sense of ________.

[　　]

3．Sharks are helpful to us as ________.

[　　]

4．Choose the best title for this passage. ________

[　　]

A．Sharks: Our Friends

B．Sharks: The Killers

C．Sharks: The Figures

D．Sharks: The Facts