Health is very important. How can we stay healthy? Look at the three children. They'll tell you what helps them stay healthy.

    Xiao Ping: Well, I like eating vegetables and fruit. I never eat unhealthy snacks（快餐）. I drink a glass of milk before I go to bed and I get up on time every morning, I also join a dance club. I practice dancing a lot after school. My good lifestyle helps me keep healthy.

    Katrina: My room helps me stay healthy. She always makes me go to bed early on weekdays. She tells me not to eat too much junk food. My morn also gives mc a lot of work around the house. Sometimes I don't like that, but I do it all. This work keeps me busy, and it is like exercise. And I like any kind of exercise.

    Zhao Gang: Well, I like sports. I go swimming in summer and running or skating in winter. I don't watch TV too much, but I read a lot of books. I learn a lot from the books. I also drink a lot of milk and eat lots of fruit. They help me become strong and keep me healthy and happy.

（   ）1．What's the passage about?

A．How to eat things every day.                B．How to keep healthy.

      C．How to exercise every day.                  D．How to study well.

（   ）2．Xiao Ping ________.

A．eats a lot of snacks every week       B．drinks some milk for breakfast every day

      C．gets up late every morning               D．practices dancing a lot after school

（   ）3．Katrina's morn helps her ________.

      A．study hard                                 B．eat lots If junk food

      C．work around the house                    D．have a good lifestyle

（   ）4．ZhaoGang gets a lot of knowledge （知识） by_______.

      A．doing sports                              B．watching TV

      C．reading books                            D．listening to the radio

　　Our body can make some vitamins（维生素）. When sunlight shines on the skin（皮肤）, the body produces Vitamin D. Some vitamins cannot be made or stored in the body. Vitamin C is an example. If a person doesn't take in any Vitamin C for a long time, a deficiency（缺乏）can develop in the body.

　　Many people also take vitamin pills. Most vitamin pills contain（包含）man-made vitamins, which are made in labs. Natural vitamins are found in foods. The vitamins that are added to natural foods are also man-made.

　　In the future, scientists may discover several new vitamins. New uses may also be discovered for the known vitamins. Scientists are experimenting to find out if vitamins can cure（治愈）or prevent diseases like cancer and heart disease. It may be that vitamins are even more important than we think.

A．we take much exercise

B．the sun shines on our skin

C．we eat much rich food

D．all of the above

A．from all kinds of foods

B．in the lab

C．of fresh milk

D．from the sunlight

A．know whether vitamins can stop some illness

B．make much more vitamin pills

C．become well-known in the world

D．help the patients who need Vitamin C

A．The vitamins that are added to natural foods are also natural.

B．If you want to be healthy, you'll have to eat more vitamin pills.

C．Vitamins are very important for our health.

D．We can take vitamin pills instead of natural vitamins to keep healthy.