Scientists find that hard-working people live longer than average men and women. Career women are healthier than housewives. Evidence shows that the jobless are in poorer health than the job-holders. A study shows that whenever the employment rate increases by 1%, the death rate decreases correspondingly（相应地) by 2%. All this comes down to one point: work is helpful to health. Why is work good for health？ It is because work keeps people busy, away from loneliness. Researches show that people feel unhappy, worried and lonely when they have nothing to do. Instead, the happiest are those who are busy. Work serves as a bridge between man and reality. By work, people come into contact with each other. By collective activities, they find friendship and warmth. This is helpful to health. The loss of work means the loss of everything. It affects man spiritually and makes him likely to disease. Besides, work gives one a sense of fulfillment and a sense of achievement. Work makes one feel his value and status in society. When a writer finishes his writing or a teacher sees his students grow, they are happy beyond words. [写作内容] 1.以约30个词概括短文的要点； 2.然后以约120个词就“努力学习，快乐生活”的主题发表看法，并包括如下要点： （1)你赞同“努力学习也可以快乐生活”这一观点吗？简要阐述理由。 （2)举例说明你的同学是如何努力学习并保持健康乐观的心态的？ （3)简述如何才能做到努力学习并快乐生活？ [写作要求] 在作文中可以使用自己亲身的经历或虚构的故事，也可以参照阅读材料的内容但不得直接引用原文中 的句子；
作文中不能出现真实姓名和学校名称。[评分标准] 概括准确，语言规范，内容合适，篇章连贯。
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A．1000kgB．44.5kgC．125kgD．15kg
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A．少于10-1NB．等于10-2NC．等于10-1ND．多于10-1N
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