书面表达（共1小题，计15分）
     保持健康的体魄，拥有健康的生活方式对于我们每个人来说都是重要的。
请以How to keep fit为题，从健康饮食、体育锻炼和养成良好的生活习惯等方面，写一篇100词左右的短文。要求内容全面，表达正确、流畅。

How to keep fit
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参考范文

    As we know, it is important for us to keep healthy and have a healthy life.How to keep fit? First, we should healthy food, such as apples,vegetables and so on.We mustn’t eat junk food, which is bad for our health. Second, to do sports is necessary for us. We can run and play ball games. Last, it is useful for us to have a good living habbit. We should go to bed early and get up early. We must wash our hands before meals. What’s more, we should brush our teeth twice a day.