Part B
67．【高分范文】
Almost every family in cities drink pure water nowadays．It has become a fashion．Why do people drink pure water instead of common water? The main reason is that pure water is good for Our health．Besides，drinking pure water is more convenient，because pure water can be drunk directly．
Some people would ask why drinking pure water is good for our health．As we know，water pollution is very serious now．So drinking common water doesn’t sound so safe as before．Pure water is absolutely clean because it doesn’t contain any mineral element．Also some certain mineral in water will do harm to our bodies when it is taken too much．At this point，pure water should he our choice．
Besides all above．pure water also tastes good．You should have a try if you haven’t ever drunk pure water before．
【写作点金】
在写这篇作文的时候，首先可以以很多人都喝纯净水来引出主题.这篇文章的重点是纯净水对身体有好处.我们可以就所了解的知识分条来阐述.因为这是一篇介绍性文章，所以在语言方面要平实.
【高频词句】
1．It has become a fashion．这已经成为一种时尚.
2．Besides，drinking pure water is more convenient，because pure water can be drunk directly．除此之外，喝纯净水比较方便，因为纯净水可以直接喝.
3．As we know．water pollution is very serious now．众所周知，水污染现在已经很严重了.
4．So drinking common water doesn’t sound so safe as before．所以喝普通的水不如以前那么安全了.
5．Also some certain mineral in water will be harmful to our bodies when it is taken too much．有些矿物元素摄人太多会对身体有害.
6. Besides all above．．．除了以卜所述…