英语
高中 · 高一
外研版 · 必修第二册
阅读理解
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阅读下列短文，从每题所给的四个选项中选出最佳选项。
A smile is the simplest but the most powerful expression on a human face. It costs nothing, yet it can bring warmth to a stranger, comfort to a friend and hope to a person in trouble. Scientists say smiling can make people feel happier because it sends a message to the brain. In addition, a smile is understood in every country of the world, so it needs no translation at all. Next time you meet someone, try to smile first, and you may find that the whole world becomes much friendlier.
1. Why can smiling make people happier according to scientists?
A smile is the simplest but the most powerful expression on a human face. It costs nothing, yet it can bring warmth to a stranger, comfort to a friend and hope to a person in trouble. Scientists say smiling can make people feel happier because it sends a message to the brain. In addition, a smile is understood in every country of the world, so it needs no translation at all. Next time you meet someone, try to smile first, and you may find that the whole world becomes much friendlier.
1. Why can smiling make people happier according to scientists?
A. Because it costs a lot of money.
B. Because it helps people sleep well.
C. Because it sends a message to the brain.
D. Because it makes people look younger.