【导言】如果说,主题是文章的灵魂,那么,材料便是文章的血肉了。一篇文章,无论主题多么新颖、深刻、生动,都离不开具体材料的支撑,因为这些材料就是文章主题赖以附着并显示出其强大生命力的根基。这正如我们平时感受到的“美”一样,它决不是一个空洞抽象的概念,而是一个活生生的实体:晴空中的一朵白云,朝阳下带露的花朵,发自内心的微笑,出于本能的帮助……试想,脱离了这些实体,“美”不就成了一具空壳了吗? Introduction If we say that the theme is the soul of the article, then the material is the flesh of the article. An article, no matter how innovative, profound and vivid the topic, can not do without the support of specific materials, because these materials are the basis for the theme of the article to attach and show its strong vitality. This is just like the “beauty” we usually feel. It is by no means an empty abstract concept. It is a living entity: a white cloud in the clear sky, a blossoming flower under the rising sun, a smile from the heart, Out of instinctive help ... Imagine, from these entities, “beauty ” not become a shell yet?