1, concept analysis. The concept here refers to the key words in the central argument of the article. Analyzing these words and making clear their connotation and extension will help us to decompose the central argument. For example, the center of an article is that "the face of safeguarding the dignity of the people of the country cannot be lost, and the idea of paying too much attention to personal face cannot be lost." The discussion of this center must be divided into two levels: one is to emphasize the need to safeguard the dignity of the country and the people; The second is to emphasize not to care too much about personal vanity. These are two sub-arguments decomposed from the central argument.

2. Causal analysis. The "cause" here refers to the partial argument, and the "effect" refers to the central argument. After establishing the central argument (fruit), analyze the reasons for this result. If you want to prove that "youth is the golden age", you can first ask why youth is the golden age. The following points can be cited: ① Youth is an era of physical strength and energy; Youth is an era of accumulating knowledge and increasing talents; (3) Youth is an era of making contributions. These three sub-arguments prove the central argument from three different angles.

3. Dialectical analysis. It includes two aspects: ① the positive and negative comparative analysis of the central argument, and ② the analysis of the split of the central argument. ① Contrastive analysis, if we want to prove that "practice makes true knowledge", we can demonstrate it from two aspects: a. Only through practice can we understand things and grasp the development law of things; B, don't participate in practice, don't proceed from reality, behind closed doors, you can't find the key to solve the problem. This can further clarify the view that "practice makes true knowledge". ② Analysis of two places. If we want to prove that "adversity is not the key to success", we should analyze it from two places: a. adversity can make talents, which has been proved by many facts at home and abroad; B, not all adversity can make talents. These two arguments seem to be contradictory, but they are all unified under the general point of "Can adversity make talents?"

4. Condition analysis. The central argument here refers to the result, while the sub-argument refers to the "conditions" to meet the result. If we want to demonstrate "striving to be a cross-century successor", we can adopt the method of conditional analysis on this topic. First of all, imagine, "What conditions do we need to become successors across the century?" In this way, we can get the following three arguments: ① determination to serve the motherland, ② excellent skills and ③ good psychological quality.

5. Comparative analysis method. This is a relatively simple method to expand the central argument into sub-arguments. For example, the center of this article is to advocate lofty aspirations, rather than fishing for three days and drying the net for two days. During the discussion, we can compare the two methods, namely "Always Determined" and "Standing for Wisdom", and analyze their respective characteristics and different results. Through comparison, we can make it clear that only by setting up lofty ideals and fighting for them can we achieve something.

These are the methods we often use. If you can't think of a good analysis method at the moment, you can also use the conventional analysis method, that is, you can ask some questions when facing the topic, such as "What is it?" "Why?" "What should I do?" , list the arguments in this regard, and then filter them. Teacher He Yongkang of college of nanjing normal university once said: "In the composition of the college entrance examination, because the number of words in the whole article is limited, it is best to control the elaboration of each small argument to about 260 words. The general process of elaboration is: first point out small arguments in a few sentences, then briefly analyze and discuss them, then present facts in combination with reality, and finally summarize them. " This passage explains in detail the realization process of a sub-argument.