Argumentation structure: "Ask questions-solve problems. This structure can be divided into: ① layer-by-layer structure-vertical structure: that is, layer-by-layer in-depth analysis. That is, the "step-by-step" method, which uses the methods of advancing step by step, deepening step by step and interlocking to demonstrate the argument, so as to make the truth thorough from small to large and from shallow to deep. ② Parallel structure-horizontal structure: when demonstrating the central argument. Line parameters. ③ Total score structure: it is the most basic structural mode of argumentative writing. It first puts forward the central argument, then puts forward sub-arguments from different angles around the center, discusses it, and finally summarizes it. There are three forms of "sum" and "sum". To sum up, it is necessary to clarify the structural level of the article. First of all, we should understand the content of each paragraph of the article, and then merge it according to the content connection of adjacent paragraphs.