ensure your body is healthy. after a day’s work, an eight-hour sleep is needed. and avoid working too hard. remember smoking can damage your health, so never smoke.

　　24. in today’s society, competition and cooperation are equally important. people are cooperators in their life. they share information, natural resources, human resources and many other things. cooperation is the way to a happy life. at the same time they are competitors. in competition, they learn from their opponents, gain courage and confidence. without competition, science and technology would not have been developed so rapidly. and without cooperation, the world would be quite different. cooperation and competition are like two sides of a person. they can’t be separated.

　　26.

　　dear smith,

　　   how nice to hear from you again. you want to know something about the listening part in our english paper for the entrance examination of colleges. i’d like to give you a brief introduction

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