(1) What is an argument? Argument is the viewpoint to be discussed and expounded in the article, and it is also the viewpoint and proposition to be expressed by the author. When reading an argumentative essay, the first thing is to find, extract and understand the arguments of the article. (2) What is argument? Argument is the material and foundation to prove the argument. (3) What is argument? Argumentation is the process of proving an argument with arguments. The argument of argument is to solve "what to prove", the argument is to solve "what to prove" and the argument is to solve the problem of "how to prove". The self-purpose of argumentation is to reveal the internal logical relationship between argumentation and argumentation. (4) The topic is the topic to be discussed in the paper.