Firstly, an argument is established, which is equivalent to the central idea of the narrative text; Then according to this argument, for example, this is an explanatory argument, which is related to the usual reading volume (you can read more newspapers and magazines, or summarize a short article in a few words). Generally, an argument can be demonstrated by two or three examples; Finally, summarize the full text again, that is, echo the argument, in order to achieve the first and last echo.
You can complete an argumentative essay of about 800 words.