[文体指导]
写有关健康问题的说明文时，一般要写明什么样的做法会对健康有利或有害，人们应该怎样做才能保持健康等。该类文章一般分为三部分：
1．开门见山提出主题，说明自己所发现的关于健康问题的现象；
2．分析所给内容，然后进行详细说明。说明所给内容时可以先说现象，也可以先说结果，再说引起这种结果的原因；
3．最后归纳总结或发表意见。这一部分的内容主要是提出解决办法及给出自己的保持健康的建议。
1．As far as I am concerned, health is more important than wealth.
2．Taking exercise is closely related to health.
3．Early to bed and early to rise makes a person healthy, wealthy and wise.
4．It is widely believed that plenty of fresh air contributes to good health.
5．Nowadays people are beginning to pay more attention to their health than ever before.
6．We should reject junk food, such as instant noodles and hamburgers.
7．Doctors advise us teenagers to sleep at least 8 hours each day.
8．People come to realize that good health is the most valuable thing a person can have.
