As a scientific researcher, it is necessary to read the literature. Because any idea we have is related to this. The great scientist Newton once said: We are standing on the shoulders of giants. Therefore, if you want to achieve something, you must read a lot of relevant literature, not behind closed doors. Only by learning from others, and then through our own summary and thinking, can we conceive great ideas in time and achieve the success of scientific research. Although the content of documents in different fields is different, the framework is similar, so I think it is very necessary to master the skills of reading documents: 1. The title of the article is the most eye-catching, and the author tries his best to conceive it in order to attract everyone's attention. So we can guess the author's research field and content from the title of the article. 2. Reading the abstract of the introduction is the central idea of the article. It contains the author's main achievements and innovative contents. Therefore, through the summary, we know the author's research content, ideas and achievements. Read the abstract to guide whether to read the article intensively. If the article is attractive. Then three. Browse the article results. Read the abstract and browse the article results. Some students always focus on the introduction. The introduction part is an introduction to the author's writing of this article. By introducing the background, studying the present situation and existing problems, this paper leads to the problems to be solved or the tentative ideas for verification. So students who are familiar with this field should not waste their time in this part. Get information as soon as possible by browsing the results. Think about whether the results of this article can be used for reference in our research. 4. Read discussion section 5. Read this article carefully. After the above four steps, you will know whether the article needs intensive reading. Read through the article if necessary. 6. Summarize the results and ideas of this paper. By summing up, get inspiration and design your own experiment. 7. Extract good sentences from the article When the author of the article you read is a native English speaker, you should not only understand and absorb the research contents, methods and ideas mentioned above. Learn wonderful sentences. It will come in handy when writing articles in the future.