Honey, your question is ambiguous. Is the college entrance examination system a disaster or is it a disaster for students? Writing an argumentative essay needs arguments, arguments and arguments. First, put forward a sub-argument. If there is a disaster in writing the college entrance examination system, you can start with the unfavorable factors of the college entrance examination, find out relevant material examples to provide arguments for your article, and demonstrate your point of view in the last sentence, for example, it is precisely because of the various disadvantages of the college entrance examination system that there will be a disaster in the college entrance examination system. If the college entrance examination is a disaster for students, then we can talk about the effect of the college entrance examination on candidates' mentality and future development, supplemented by examples, and finally demonstrate: In summary, the college entrance examination is indeed a disaster for students' development. In short, the sense of hierarchy in argumentative writing must be clear, and three steps are indispensable.