1) discrimination and demonstration methods. The commonly used argumentation methods are: example argumentation, reason argumentation, metaphor argumentation and comparative argumentation.

(2) Analysis and demonstration methods. The language is as follows:

(1) sample demonstration: sample ...

(2) Reasoning: quoting famous sayings.

(3) Comparative argument: discuss from both positive and negative aspects, and point of view …………………………………….

(4) Metaphorical argument: It vividly demonstrates that ... by analogy with events, the argument is easy to understand and be accepted.

Sometimes there is more than one argument for a paragraph, and you have to find all the answers.