题目内容：

Why we cry with happiness show: Responding with a negative reaction helps us deal with extreme joy. If you cry with happiness at weddings, you are responding to a happy experience with a negative reaction. The researchers believe the unusual reaction may help renew emotional balance in us and keep extreme emotions under control. The findings make it clear how people express and control their emotions, which could help improve their understanding of people’s mental(精神的) health.

Dr Oriana Aragon set out to explore the phrase “tears of joy”, which she said never made sense to her. But after studying a series of incongruous(不和谐的) expressions, she now understands better why people cry when they are happy. “People may be renewing emotional balance with these expressions,” she explained. “They seem to take place when people are struck by strong positive emotions. People, who do this, seem to recover better from those strong emotions.”

The report show various examples of responding to a positive experience with a negative emotion, such as, a crying wife seeing the husband returning from war again, and teenage girls screaming at a Justin Bieber concert. Examples also include a baseball player who hits a home run, only to be slapped(拍) on the back by teammates, as well as when people cannot help kissing babies’ faces who they consider lovely.

Dr Aragon and her team discovered that people, who expressed negative reactions to positive news, were able to moderate(缓和) strong emotions more quickly. There is also some evidence that strong negative feelings may provoke positive expressions. For example, nervous laughter often happens when people are faced with a hard situation. We’ve seen people smiling during times of extreme sadness.

“The findings affect our knowledge of how people express and control their emotions, which is importantly related to mental and physical health, the quality of relationships with others, and even how well people work together,” Dr Aragon said.

1.What will an extremely happy person do, according to the passage?

A. He will jump with joy.    B. He will keep silent.

C. He will calm down as usual.    D. He will burst into tears.

2.By responding to happiness with negative reactions, people can ________.

A. hide the true feelings under a mask of politeness

B. renew emotional balance and control strong emotions

C. show off their rich emotions now and then

D. express themselves carefully in a special way

3.What does the underlined word “provoke” in Paragraph 4 probably mean?

A. Lead to.    B. Hold back.

C. Take in.    D. Get over.

4.What can we learn from the last paragraph?

A. It’s common to express negative reactions to positive feelings.

B. When people cry, it means they are very happy.

C. Expressing and controlling emotions is important for humans.

D. Differences between positive and negative emotions.