All the people know that exercise is important. 【小题1】. Doctors say it is good for us to take exercise regularly(有规律地). It makes our heart and body strong. Children who often exercise are smarter. It is healthy for the mind and the body. 【小题2】. There are many ways to do exercise. 【小题3】. Make sure you exercise in the following ways.

Exercising can be fun. Friends can exercise together at a fitness centre, or they can play sports together outside. How do you exercise?

I’m sure we all know that exercise is great for us. But to be honest, many people can’t keep on exercising. 【小题1】

① Exercise can completely change your mood.

When you exercise, your body produces endorphins (内啡肽), which will give you happiness. 【小题2】 So next time you’re having a bad clay, go for a fast run or play tennis, and the day won’t seem so bad any more.

② Exercising is the way to meet new people.

【小题3】 You will meet someone new in exercise classes. You can support each other by dealing with the difficulties during the classes and share happiness when the classes finish.

③ 【小题4】

Exercise has the influences on your minds. It might make you believe in yourself more because it will make you comfortable with your body and your appearance.

④ Finally, it helps to lower stress.

Focusing on exercising can help you forget the problems and stress in your daily lives. During exams, I always spend an hour a day to exercise. 【小题5】 And it also helps me to sleep well the night before a big exam.

I’m the father of a five-year-old boy. “Daddy, where are you going?” Dave asks me why I’m putting on my running shoes on a cold Sunday morning. “Go running,” I say. “Why?” he asks me in surprise. He is only five but it is a question that I can’t easily answer. I often ask myself, “Joe, why do you go running?” I don’t know, but something lets me go. So I say to Dave, “Something lets me go.”

The truth is that just before you run, it’s still difficult to explain to someone why you run. Of course, some people run to lose weight or to be healthy, and these are good reasons.

Running is difficult. You need to persist（坚持）. Running is also easy to do. It’s cheap, and you can do it whenever you want. There are more than two million people in England running at least once a week. I’m one of those two million runners. I go running not to lose weight or to be healthy. I run five kilometers every morning. After that I feel great, and it’s easy for me to do the other things. After my busy work, I usually go out to run, and I think it is the most wonderful time in a day. I love running and I will keep running.