Strong,healthy teeth help you chew food that helps you grow. They help you speak clearly. And they help you look best. Here are some tips for you to take care of your teeth.

1. Brush your teeth in the right way.

Brush your teeth at least twice a day―after breakfast and before bedtime. If you can,brush them after lunch or after sweet snacks,too.

Brush all of your teeth,not just the front ones. Spend time brushing teeth along the side and back of your mouth. Brush things away from your gums (牙床) too.

Spend at least three minutes each time when you brush your teeth. Play a song you like to help pass the time. Get a new toothbrush every three months. When you buy your toothbrush,be sure it has soft bristles (刷子毛) .

2. Learn how to floss your teeth (用牙線剔牙縫) .

Flossing is a very important way to keep your teeth healthy. Food may hide in places where a toothbrush can not get to,like the space between two teeth. Flossing can help get rid of (除掉) it. Carefully move the floss between two teeth,up and down. You need to floss your teeth at least once a day.

3. Have good eating habits.

You need to be careful about what you eat and drink. Eating sugar is a major cause of tooth decay (蚊牙) .Eating sugar before you go to bed can make things even worse. So you should eat lots of fruit and vegetables and drink water instead of soda.

(   ) 11. Which is not mentioned in this passage?

   A. Flossing your teeth.

   B. Brushing your teeth.

   C. Having good eating habits.

   D. Seeing a dentist.

(   ) 12. The underlined word "tips" in the first paragraph may mean "         ”in Chinese.

   A. 小費(fèi)   B. 小建議

   C. 原W   D. 小工具

(   ) 13. What can we learn from this passage?

   A. Brushing your teeth twice a day is enough.

   B. Hard bristles will make your teeth clean and healthy.

   C. Flossing is not so important to keep your teeth healthy.

   D. Having good eating habits is very important to keep your teeth healthy.

(   ) 14. Which of the following statements is NOT true according to the passage?

   A. We should brush our teeth at least twice a day.

   B. Flossing can help get rid of the food hidden between two teeth.

   C. One of the major causes of tooth decay is eating sugar.

   D. We don't have to brush our teeth if we eat a lot of fruit and vegetables.

(   ) 15. What is the major cause of tooth decay?

   A. Flossing your teeth.

   B. Brushing your teeth too often.

   C. Hiding some food between your teeth.

   D. Eating too much sugar.

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