First, the argument structure of argumentative paper-step by step structure First of all, the juxtaposition in argument thinking, a detailed analysis of the central argument, decomposed into several sub-arguments to jointly explain the central argument of the article, which is juxtaposition. Each argument is listed in parallel and elaborated. The external language symbols of the coordinate structure are "first", "second" and "again", or "on the one hand" and "on the other hand", or "first" and "second". The contents of several parallel arguments should not be overlapped, repeated, inclusive and contradictory. Step by step: analyze things in depth to show the profundity of thinking. N For example, in the face of difficulties, it can be broken down into several sub-arguments: n① We should admit difficulties, because they are everywhere and all the time; N 2 don't be afraid of difficulties, because difficulties are like springs. If they are strong, they will be weak. N 3 analyzes the difficulties in research and tries to overcome them. These three sub-arguments are progressive: life needs to be inclusive, and hierarchical structure refers to the interlocking and deepening of all levels of the article, or from phenomenon to essence, or from cause to result, or from general to special, and so on. Its basic structure is to ask questions-analyze problems-solve problems. Hierarchical structure can better reflect meticulous thinking than parallel structure and contrast structure, and can make the article more flexible and personalized. When using hierarchical structure, we should pay attention to two points: (1) There is an inherent logical relationship between the levels of the article, and the order between the levels cannot be changed at will, so the author arranged the order of the materials before writing. The hierarchical structure is not easy for people to see at a glance, so the sentence at the beginning of each paragraph must be written well. It not only closely follows the requirements of writing, but also reflects the hierarchical structure of the article. Progressive argumentative writing means that every argument is in-depth and paragraphs are not interchangeable. The most typical answer is what to do, why to do it and how to do it for an opinion. The coordinate type means that several viewpoints have the same viewpoint, the same paragraph structure and interchangeable paragraphs. For example, in Chen Qun's article "The Ideal Ladder", there are three arguments: "The ideal ladder belongs to hardworking people"; "The ideal ladder belongs to those who cherish time"; The ideal ladder belongs to those who face difficulties. These three sub-arguments have no distinction between primary and secondary importance, and there is no difference in order, which is a typical parallel argument structure. Progressive argumentative writing training is the focus of senior high school composition training. Argumentative writing should be well-founded in content, speculative, structured and clear in thinking. This composition is to further train the hierarchical structure on the basis of parallel composition, so that students can learn to reason deeply layer by layer. Comment on the last composition 1 first. The teacher said: This writing training will be the second training of hierarchical argumentative writing. Last time, most students didn't write according to the requirements of hierarchical structure, so they didn't meet the requirements as a whole and had to retrain. The main problems in the last composition are: vague understanding of hierarchical relationship, unclear hierarchical structure, or chaotic hierarchy, or lack of depth, or written in other structures. It seems that students don't understand this structure enough and need to strengthen training. Today, we will train the thinking of progressive argumentative writing in the form of outlining. In fact, in the composition teaching of European and American countries, writing an outline is highly valued and "has become a universal activity" (Japanese language educator Hayashi Shiro). This method is also worth learning. 2. Projection presentation: make a brief comment on 2 ~ 3 composition outlines in the last composition (with the topic of "seeking"). Teacher's brief comment: This essay is chronological, from scratch, from shallow to deep, with clear context. It describes the process of improving my understanding of reading happiness, conforms to the law of understanding things, and embodies the requirements of hierarchical structure. Teacher's brief comment: The main part of this paper adopts hierarchical structure. First of all, it is not easy to find happiness. Then, people will always cherish the hard-won happiness. Finally, from cherishing happiness to cherishing life, the content is interlocking, the meaning is promoted layer by layer, and the structure is very strict.