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1、1. It is reported that the health of young people in China, college students in particular, is not as good as is supposed to be. There are many reasons for this fact, but the main reason is that many people ignore the importance of physical exercises. Why, then, are physical exercises so impor

2、tant to our health? First, physical exercises can improve blood circulation, speeding up the supply of nutrients and oxygen to every part of the body and the removal of waste from the blood through sweating and exhalation. Secondly, physical exercises can promote a healthy metabolism. It helps with

3、the digestion and absorption of food, thus giving everyone a good appetite. Thirdly, physical exercise can help consume excessive fat in the body, preventing people from putting on too much weight, thus keeping them in good shape. Finally, after physical exercises we usually need a good rest and a s

4、ound sleep at night, refreshing us for the next day＇s work. In conclusion, physical exercises not on[y keep us fit and strong, but also help us to be successful in our lives. It is, therefore, strongly suggested that young people spare some time to take an active part in various kinds of physi

5、cal exercises. 2. The Importance of Physical Exercise Everyone hopes to live happily in the world. Physical exercise is indispensable to a happy life. There is a famous saying: "Life lies on exercise." Although you will not necessarily die without regular physical exercises， they II certainly

6、help you live longer and more healthily. Exercise is good for us to build our bodies. It helps co - ordinate the different parts of our bodies when we have sports. For example， we must try our best to co - ordinate the movements of the arms and legs when we play basketball， or we wont be able to

7、shoot the basket. Exercise also benefits our organs. It lets the heart beat faster than usual， and then helps enlarge the blood vessels to protect us from heart attacks. Exercise can also contribute to the development of our ability to response agilely. For instance， when you play table- tennis， y

8、ou must try to reflect as quickly as you can so that you may fight back at the right position at the fight moment. Exercise can also contribute to improving our mood. When you do exercise， you move a lot， and you have to be more active. It helps you become more optimistic. Exercise will fill yo

9、ur life with various contents and make it more colorful. Whats more， exercise will help you get rid of your inertia. If you keep doing exercise regularly， you will never be a lazy person. Therefore， exercise has great effect on ones character. In a word， exercise is helpful， important and abso

10、lutely necessary 3. Students in our school have one thing in common- an interest in sports. According to their different intentions in taking part in sports, they fall into three groups. 　　 Many students go to the playground when they tired after a few hours of study, These students put much mor

11、e tress on their study efficiency than the fun of sports, They just want to go back to their classrooms from the playground with a clearer and quicker mind. Thus they dont actually care whether they can enjoy themselves on theplayground. Most of them choose long distance running, the kind of exercis

12、e which few real sports enthusiasts like. So this group of students can be well labeled as study-- oriented participation. 　　 Students that make up the second group are real sports lovers. Sometimes they even put aside their studies for a match. They take part in the sport that interests them mos

13、t, not caring whether it is most beneficial to their health. They may be called fun-oriented sports participants. 　　 The third group want beauty from sports. Boys want to become strong; girls want to be slim and graceful. Those who consider sports the only way of reducing weight also belong to th

14、is group. They are very careful in choosing the kind of exercise they do, and are afraid that certain sports may ruin their figures. Horizontal bars and parallel bars are the boys choice, and the hula hoop is now the girls favorite. The appropriate name for this group may be beauty - oriented sports participants. 　　 No matter which group we belong to, we all benefit from sports. If you look around the campus, you will find that bookworms have disappeared, and, instead, there are healthy, strong, clever, modernized students everywhere.