《2025年新课程暑假作业本山西教育出版社七年级综合B版》

F 读一读,写一写。
Who's your best friend?How did you become friends?Why do you feel so happy
when playing with him or her?Friendship is a wonderful thing.There is,in fact,surprising
science(科学)behind it.
Scientists believe friendship has something to do with chemicals(化学物质)！ When
you enjoy doing something with others,such as singing,dancing,or playing a game,your
body wii | l make a hormone(荷尔蒙).It makes you feel happy and wonderful.
When you experience(经历)something challenging(有挑战性的), your body wil | l
make more of this hormone.If you ride a roller r coaster(坐过山车)with your friends,you
might find that you feel even closer to them.
When playing with friends,your body wil | l make another chemical.It can make you
feel relaxed(放松的).This wil | l help you eat and sleep bet tter.People who have good
friends can live 3.7 years longer than those who have no friends.
根据所阅读的短文内容,回答下面的问题。
1.What do scientists think about friendship?
2.When do people feel closer to their friends according to the text?
3.What can make you relaxed when you play with friends?
4.Who live longer,people with friends or people without friends?

答案： 1. They believe friendship has something to do with chemicals.
2. When people experience something challenging.
3. A chemical that your body makes.
4. People with friends.