Introduction, the main task is to make a general plan for the basic content and outline of the whole paper. Generally, it includes all or several of the following five items: introducing the background, significance, development status and current level of a certain research field; Review and summarize the literature in related fields, including previous research results and solved problems, and make appropriate evaluation or comparison;

The task of the introduction is to explain the topic, the main direction of the paper, the process and situation of document retrieval (that is, what the predecessors have done in this regard), what innovations (or arrangements) their own papers have, the research methods adopted, the general structure of the paper and other issues that need to be explained.

It is a summary of the essence of the full text, a summary of a scientific research work or technical practice, which can be summarized from the aspects of purpose, method and research results. Generally speaking, before the main part, it is mainly to let readers know the content of the paper first.

Extended data:

(1) How to write the beginning of the introduction

The main purpose of the introduction (the first layer) is to tell readers what the research field and significance are, what problems the research should solve, and what the current situation or level is.

(2) How to write a literature review

Literature review is an important part of academic papers, and it is the author's summary and comments on the work and research results of others in a certain research field, including his representative views or theories, inventions and discoveries, and methods to solve problems. When quoting other people's research results, you should indicate the source, that is, who, when and where publicly published this research result.

(3) How to write the research motivation and purpose.

After introducing the work and achievements of others in a certain field, the next step is to introduce the author's own research motivation, purpose and content. The research motivation can be introduced from two angles, one is to point out the unsolved problems or knowledge gaps of predecessors, and the other is to explain the significance of solving this problem or filling the knowledge gaps.

After pointing out or implying gaps in the knowledge field, or putting forward questions or assumptions, it is natural to tell readers the purpose and content of this study and what problems to solve, so as to fill the gaps or prove the assumptions put forward.

(4) How to write the end of the introduction

The purpose of the study can be the end of the introduction. You can also briefly introduce the structure of the article and the main contents of each part, which will make the finishing point and let readers know the outline and context of the article.