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." To discuss this center, it must be divided into two layers:

(1). First, it emphasizes the need to safeguard the dignity of the country and the people;

2. Second, 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. To prove that "youth is the golden age", you can ask questions first. Why is youth 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), positive and negative comparative analysis, if we want to prove that "practice makes true knowledge", we can demonstrate it from both positive and negative 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) \ Split analysis, if we want to demonstrate that "adversity is not the key to success", we must split analysis:

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?" , so you can get the following three points:

(1) have the determination to serve the motherland;

2 must have excellent technology;

③ Have 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 "established 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.