Hello! My name is Karen. I am from America. Now I am living with my parents in Beijing, China. They work here. I like China and Chinese food very much. I often have breakfast at home. I have an egg, some bread and porridge for breakfast. My mom says they are good for my health. I have no time to go home for lunch. I always have lunch at school. And I like it because the lunch in our school is good. I can have different kinds of food for lunch. Sometimes I have rice, beef and vegetables. Sometimes I have noodles and chicken. After school, I do sports with my classmates for half an hour. I get home from school at about 5:30 p.m. I have dinner at home with my parents. On weekends, sometimes I eat out with friends. We have chicken, vegetables and fruit. I don’t like junk food, because I don’t want to be fat, neither do my friends. What about your eating habits? Are they healthy or unhealthy?

水果	苹果	橙子	草莓	梨子	香蕉
价钱	10   元	8元	15元	6元	18元一箱， 30元两箱

Mr. Brown is an Englishman. He is thirty-five years old. He teaches English in a middle school in Beijing. His classes are very interesting and his students all like him very much. He has two children. They are Jack and Maria. Jack is nine and his sister is four. Jack goes to school but Maria doesn’t. Mr. Brown likes sports and soccer is his favorite sport. He has a big sports collection. He has nine basketballs and seven soccer balls. After school he often plays soccer with his students. Sometimes he also plays volleyball for fun. He likes vegetables and fruit. His favorite fruit is apples. He doesn’t like chicken.

A recent research shows that physical activity may help students do better in their classes. The research comes because educators in some countries are reducing time for activities like P.E. class.

Researchers go over the results of fourteen studies. Twelve were from the United States, one from Canada and one from South Africa. The studies appeared between 2009 and 2013. They included more than 5,000 children, aged six to eighteen.

Thomas Singh, one of the researchers, says the studies showed a relationship between physical activity and scores on subjects such as Math, English and reading. Mr. Singh offers some possible explanations（解释）:

There are, first, physiological（生理的）explanations, like more blood flow, and so more oxygen（氧气）to the brain. Being physically active means there are more hormones（荷尔蒙）produced like endorphins（脑内啡）. And endorphins make your stress level lower and your mood improved, which means you will perform better in class. Also, students who take part in organized sports learn rules and how to follow them. This could improve their classroom behavior and help them know what they should do.

All in all, the finding tells us that physically active kids are more likely to do better in school. Mr. Singh says schools should consider the finding before they cut physical education programs.

近20年来，各方面的调查表明：青少年的体质不断下降。请你以“How to keep healthy”为题，写一篇80词左右的短文，说说你的看法和建议。开头已给出，不计入总词数。

How to keep healthy

Nowadays students’ physical fitness is declining year by year. I think there are some reasons.