请你根据下列内容用英语写一篇短文。内容包括：
什么是世界上最重要的事情？我想，答案应该是健康。良好的健康对我们非常重要，
有了健康他就能享受人生的乐趣。健康需要三个因素:它们是营养食物，新鲜空气和适当
运动。为了保持平衡饮食，我们应当避免吃太多高热量的食物，比如炸薯条或甜点, 同时
应该多吃蔬菜和新鲜水果。每天做运动有助于我们拥有强健的身体，是我们保持身体健康
的一个重要部分。
写作要求：1．必须使用5个句子表达全部的内容；
2．短文稿必须包括所有内容信息，行文连贯通顺。
评分标准：句子结构准确，信息内容完整，篇章结构连贯。
提示词: (1)营养食物：nourishing food (2) 平衡饮食：balanced diet
(3) 炸薯条：French fries (4)甜点：sweets (5)高热量：high calory①What is the most important thing in the world? I think it is health. ②It is necessary for us to have good health, and one can enjoy the pleasures of human life as long as he leads a healthy life.③In order to insure good health we must pay attention to three factors, which contain nourishing food, fresh air and proper exercise.④To eat healthily, we should usually avoid eating food with high calory, like French fries or sweets, and eat a lot of vegetables and fresh fruit which are full of vitamins. ⑤Meanwhile, taking exercise every day helps us build a strong body, which is an important part of keeping us healthy.
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(答案→)①What is the most important thing in the world? I think it is health. ②It is necessary for us to have good health, and one can enjoy the pleasures of human life as long as he leads a healthy life.③In order to insure good health we must pay attention to three factors, which contain nourishing food, fresh air and proper exercise.④To eat healthily, we should usually avoid eating food with high calory, like French fries or sweets, and eat a lot of vegetables and fresh fruit which are full of vitamins. ⑤Meanwhile, taking exercise every day helps us build a strong body, which is an important part of keeping us healthy.
解析：提纲作文要求考生根据所给的写作要求和提纲，确定文章的中心思想，然后紧紧围绕中心思想展开写作。要求考生在保证内容要点全部概括的基础上可以充分发挥自己的想象，进而用自己的语言来表达某种观点或看法，增添了写作的灵活性，同时能较好地考查考生的想象能力和英语语言表达能力。