Distinguish between the central argument and the sub-argument: the sub-argument is generally located at the beginning of the paragraph or has iconic words: first, second, third, etc.

Fourth, we should pay attention to the expression form of the argument: sometimes the topic is the central argument. A paper has only one central argument.

Fifth, refute the inference point through arguments: arguments serve to prove arguments, and analyzing arguments can show what it proves, affirms and supports. This is an argument.