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Laughter is a kind of universal body language that is shared by people of all nationalities, skin colors, cultures and traditions. But did you know that the ability to tell real laughter apart from fake (假的) laughter also varies among cultures?

Greg Bryant, a professor of communication at the University of California, published a study in late July. In the study, 884 people from 21 countries were asked to listen to random recordings of laughter. Some of the recordings were made up of laughs from the bottom of the heart, while others were made by people who were asked to laugh on command.

The study showed that people around the world have the ability to pick out real laughter, although their abilities vary from country to country. Residents of the Samoan Islands, were particularly good at it, correctly identifying real laughter 56 percent of the time. According to Bryant, people from smaller, less industrialized nations “are more accurate in identifying a natural smile” because they rely heavily on emotional engagement in order to predict others’ behavior and create stronger social relationships.

But how do people from different cultures detect natural laughter so easily? And what characters does real laughter have? As Professor Jessica Wolf of the University of California told the Association for Psychological Science, in real laughter, we produce qualities, such as higher pitch (音调) and volume, as well as faster bursts of no clear sounds.

By contrast, fake laughter will “sound like speech”. According to Science Daily, fake laughter is controlled by the same brain system that controls the lips and tongue. Bryant further explained that this system has active ability, saying “with this speech system, you can make a lot of different noises, including crying, laughter or scream. That’s where fake laughter comes from”.

So that? s something to think about: next time one of your friends laughs at something you say, will you be able to tell if it’s real or fake?

1.What did the study find?

A.Real laughter is produced from people’s heart.

B.People can tell real laughter from fake laughter.

C.People have trouble recognizing real laughter.

D.Laughter is a kind of universal body language in the world.

2.Why are residents of Samoan accurate in identifying natural laughter?

A.They put much emotion to knowing others.

B.They often predict others’ behaviors.

C.They aren’t well educated.

D.They have a strong social relationship.

3.What characters does real laughter have?

A.Clearer words. B.Slower speed.

C.Higher sound. D.More like a speech.

4.What can we learn about the fake laughter system?

A.It controls ears and eyes.

B.It works like speech systems.

C.It encourages people to copy others.

D.It can make people produce various noises.

高二英语阅读理解中等难度题

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