微笑的力量

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微笑，是一种简单而又美好的情感表达。它可以让我们变得更加积极乐观，勇敢去面对生活中的各种挑战。让我们用微笑去迎接每一个新的挑战，用微笑去感染身边的每一个人，让世界因我们的微笑而变得更加美好！

A smile shows that a person is happy. For example， a person may smile when he or she is pleased with a grade on a test. Or a person might smile if a friend told a funny joke. People smile for many different reasons. But smiles are more than just a way for people to show that they are happy. There are other good reasons to smile often.

First， it is easier to smile than to show unhappiness. In fact， it only takes 17 muscles （肌肉） to smile. On the other hand， it takes 43 muscles to show unhappiness. So give the muscles in your face a rest and smile！

Second， smiles are nice. People may try to look nice on the outside by exercising or wearing nice clothes. However， there is a famous saying： a smile is the best thing a person can wear. That is because it is easy to be around someone who is smiling and happy. Almost no one wants to be around someone who is unhappy all the time.

Third， smiles are helpful. Both smiling and laughing can quickly spread from one person to another. If one person smiles， people around him or her want to smile， too. Similarly， when a person laughs， people tend to laugh with them. If a person is sad， the best thing to do is to share a smile or laugh. It is the easiest and cheapest way to cheer someone up.

Finally， smiling and laughing are very good for the body. Even if you are mad or sad， try smiling. You’ll find that it will be hard to stay mad or sad for very long.

1. Which of the following is mentioned as a reason to smile？

A. It is polite. B. It is quiet. C. It is free. D. It is easy.

2. Which of the following sentences is TRUE？

A. It takes fewer muscles to smile than to show unhappiness.

B. No one wants to be around the people who are happy.

C. If a person is sad， the best thing to do is to have a rest.

D. If you are angry or sad， you’d better avoid smiling.

3. Which of the following best shows the structure of this passage？

4. What’s the best title for this passage？

A. Ways of Making People Happy B. The Power of Smiling

C. Different Ways of Smiling D. The Importance of Happiness

难句解析：

1. However， there is a famous saying： a smile is the best thing a person can wear.

然而，有一句名言：微笑是一个人能穿的最好的东西。（剩余773字）