First, the concept of the paper: the paper is an article with narrative and description as the main forms of expression and characters, narrative, scenery and objects as the main contents. In middle school, for the convenience of teaching, news, communications, biographies, memoirs, fables, fairy tales, novels, etc. Often classified as thesis teaching.

Second, the classification of papers: from the content and writing style, it can be divided into two categories: simple papers and complex papers.