(1) The content should be directly related to the problem being studied; Be sure to be consistent with the content theme of their own research, can not be off-topic, off-topic, and discuss the content unrelated to the theme word.

(2) The content should reflect the main research results in recent years; Based on the literature of the last five years, it is best to narrow it to the last three years, so as to ensure that the research content will be the hot spot, focus, and urgent problem to be solved.
(3) The content should be written according to the theme rather than historical clues, and should not be discussed in accordance with the research time, so that the content is coherent and logical, and the research content is connected up and down.
(4) The research status should have a certain degree of criticism; It is pointed out that the current research is insufficient, the reality factors are ignored and the factors are not taken into account.
(5) Pay attention to the transition between topics (paragraphs).

(6) Draw out the research gaps and problems to be studied through the research status.