1, find typos. This is the most fundamental and important proofreading method, and it is also the easiest way to find mistakes. Source analysis is often used in proofreading theory, including places where typos are easy to appear in papers.

2. Punctuation symbol verification Punctuation symbol is an important part of the whole paper and an effective shortcut to accurately express thoughts and feelings and understand the content of the article. There are many rules for the use of punctuation marks, so we should grasp their fundamental requirements in application. 3. Review a perfect paper topic in logical order, both the content of the discussion and the structure of the framework have their internal relations. Proofreaders will find loopholes in these logical sequences and internal relations and correct them accurately. 4. Structural proofreading In proofreading articles, the meaning of structural proofreading is to divide sentences into six categories: subject, predicate, object, definite, form and complement, and then judge whether the sentences are correct according to the composition, request, usage and scope of these sentence variants, with the aim of cutting off details, sorting out the trunk of sentences and finding out sentence errors. Proofreading means that the author proofreads the content of the paper again and corrects the mistakes caused by typesetting. In order to find and correct these mistakes, we need to do these jobs.