Everybody has one of those days when eve...

Recently, researchers in the US have carried out a study on laughing, one of the most natural characteristics of human behavior.

Jo-Anne Bachorowsky, a psychology professor at Vandebilt University, 36  a team of researchers who   37   a total of 11 short videos to 97 young adult volunteers in the US. They found that the participants produced a   38  of sounds when they laughed, 39  grunts(呼噜声) and snorts(哼声).

The researchers found that some of the   40   were dependent   41  gender(性别). Men laughed with grunts and snorts more often than women,   42  women’s   43   was more song-like.

They also found that people’s laughter could change,   44  who they were with at the time. Whether they were with a man or a woman and   45  person was a friend or a   46   both played a part in laughter.

The researchers found that women’s laughter was very high with a   47   pitch(音高) when they were with male strangers. And women taking   48   in the study laughed more often when they were with a male friend than when they were with a(n) 49   friend or a male stranger. But men laughed more freely with friends of either sex than with strangers of either sex.

Scientists believe that the   50   consumed in laughing 100 times is   51  to 15 minutes on an exercise bike. Another 52   of laughter is 53   it improves our mental health. Laughter reduces our levels of stress. It also helps us   54   serious illness.

  55  ,we think laughter can make us feel good.

— I’m sorry, I shouldn’t have used up all the money so quickly.

— __________. What’s done is done.

Many areas were stricken by the typhoon, and it was quite difficult to ______ the exact losses.

Two friends have an argument that breaks up their friendship forever, even though neither one can remember how the whole thing got started. Such sad events happen over and over in high schools across the country. In fact, according to an official report on youth violence, "In our country today, the greatest threat to the lives of children and adolescents is not disease or starvation or abandonment, but the terrible reality of violence". Given that this is the case, why aren't students taught to manage conflict the way they are taught to solve math problems, drive ears, or stay physically fit?

First of all, students need to realize that conflict is unavoidable. A report on violence among middle school and high school students indicates that most violent incidents between students begin with a relatively minor insult (侮辱). For example, a fight could start over the fact that one student eats a peanut butter sandwich each lunchtime. Laughter over the sandwich can lead to insults, which in turn can lead to violence. The problem isn't in the sandwich, but in the way students deal with the conflict.

Once students recognize that conflict is unavoidable, they can practice the golden rule of conflict resolution (解决) : stay calm. Once the student feels calmer, he or she should choose words that will calm the other person down as well Rude words, name-calling, and accusations only add fuel to the emotional fire. On the other hand, soft words spoken at a normal sound level can put out the fire before it explodes out of control.

After both sides have calmed down, they can use another key strategy (策略) for conflict resolution : listening. Listening allows the two sides to understand each other. One person should describe his or her side, and the other person should listen without interrupting. Afterward, the listener can ask non-threatening questions to clarify the speaker's position. Then the two people should change roles.

Finally, students need to consider what they are hearing. This doesn't mean trying to figure out what's wrong with the other person. It means understanding what the real issue is and what both sides are trying to accomplish. For example, a shouting match over a peanut butter sandwich might happen because one person thinks the other person is unwilling to try new things. Students need to ask themselves questions such as these: How did this start? What do I really want? What am I afraid of? As the issue becomes clearer, the conflict often simply becomes smaller. Even if it doesn't, careful thought helps both sides figure out a mutual solution.

There will always be conflict in schools, but that doesn't mean there needs to be violence. After students in Atlanta started a conflict resolution program, according to Educators for Social Responsibility, "64 percent of the teachers reported less physical violence in the classroom; 75 percent of the teachers reported an increase in student co-operation; and 92 percent of the students felt better about themselves'. Learning to resolve conflicts can help students deal with friends, teachers, parents, bosses, and coworkers. In that way, conflict resolution is a basic life skill that should be taught in schools across the country.

1.From Paragraph 2 we can learn that_______

2.Why do students need to ask themselves the questions stated in Paragraph 5?

3.After the conflict resolution program was started in Atlanta, it was found that______

4.The writer's purpose for writing this article is to_______

1.The purpose of this passage to                   ．

2.According to the passage, we can know that             ．

3.Which of the following is true about the apps?