1, write a summary. This requires consulting a lot of literature. By reading a large number of documents, we can get opposing or unified views, which will provide research topics for him to carry out research.

2. Carry out research projects that no one has studied. Look at your own ideas from the literature, whether others have thought of your own research hypothesis and whether others have established it.

3. Improve research results. On the basis of previous studies, by changing the research variables, changing the research environment and conditions, and increasing the sample size, whether the same research results appear.