The text of an article is the main body of an academic paper, which usually consists of three parts: introduction, theory and conclusion. Introduction refers to the introduction at the beginning of the article; This theory refers to the analysis and demonstration part of the main body of the article; The conclusion is the final summary of the article.

The semantic logical relationship among introduction, theory and conclusion is usually: total-sub-total. That is, the introduction puts forward the problems to be discussed in the article; This paper analyzes and explains the arguments item by item, usually with chapters or subtitles; The conclusion summarizes the full text and summarizes the main viewpoints.