Pay attention to the following aspects to grasp the argumentation ideas:

1. Make clear the central argument and sub-arguments of the article.

2. Combined with the specific content of the article, first analyze what the article said, and then analyze what it said.

3. Obviously, the demonstration method was used in the demonstration.

4. Make clear the angle of argument, that is, positive argument or negative argument.

The idea of analysis and demonstration is to add words such as "first", "then", "next" and "last" on the basis of paragraph level.