题目内容：

    Kate is reading something about how to keep healthy on the Internet.

Brush your teeth twice a day and see a dentist at least once a year. The oral examination（口腔检查）is not only for the health of your teeth, but for the whole body. Please visit www.mvdr.com. for more information.

Studies show that the cold or flu virus（病毒）can live on our hands for long. So you should wash your hands often with soap. For more ways to prevent（预防）the cold or flu, please call Health Line at 180-1313.

Good sleep is important for your health. You need about seven hours' sleep a night. Don't eat or read in bed. Go to bed and get up at the same time every day. For more information, please visit www.sleeping.com.

How often do you exercise? If you want to keep healthy, try to exercise for 30 minutes a day, three or four times a week. For more information, please call Healthy Line 180-2000.

1.How can you find more information about tooth health?

A.Visit www.mvdr.com. B.Call Health Line at 180-1313.

C.Call Healthy Line 180-2000. D.Visit www.sleeping.com.

2.You should _________ if you don't want to have a cold.

A.wash your hands often B.eat in bed

C.brush your teeth every day D.buy a piece of soap

3.If you want to keep healthy, how often do you need to exercise?

A.At least once a year. B.Three or four times a week.

C.30 minutes every day. D.three or four times a month.

4.Which of the following is true?

A.The oral examination is only good for your teeth.

B.You need about eight hours' sleep a night.

C.For more information about cold and flu, please call Healthy Line 180-2000.

D.Kate is reading an article about health on the Internet.

5.What is the best title about this article?

A.How to prevent the cold B.How to exercise

C.How to protect your teeth D.How to keep healthy