It is a general statement of the main contents, research purposes and research methods of the paper.

Introduction is an introduction, which is generally the first part of an article in English literature. This paper introduces the research background, significance, development status and current level of this research field, and leads to the following.

2. Different purposes

The important purpose of this paper is to facilitate people's literature retrieval and preliminary classification.

The purpose of the introduction is to briefly describe the content or related background of the article to readers, arouse their interest in this article, outline the text and stimulate their interest in reading.

Extended data:

Writing requirements of introduction

1, cut to the chase, don't beat around the bush. Avoid long-winded narration of historical origin and research process.

2, concise, highlight the key points. We shouldn't talk too much about the familiar common sense content of colleagues and textbooks. When it is really necessary to mention other people's research results and basic principles, we only need to mark them in the form of quotations. In the introduction, when putting forward the work and opinions of this paper, we should make the meaning clear and the language concise.

3. Reviewing the history should be focused, and the content should closely follow the title of the article, introduce the background around the title and summarize it in a few words; Don't write out the methods and results and don't discuss them when prompting the methods used; Although the contents of past documents can be quoted appropriately, they should not be listed in detail, and the preface should not be written as the historical development of research; Don't write the preface as a small summary of the literature, and don't repeat the common sense content already in the textbook or known by researchers in this field.

4. Respect science and seek truth from facts. In the preface, we should properly evaluate the value of the paper, seek truth from facts and use scientific words. For the innovation of this paper, it is best not to use inappropriate self-evaluation such as "This study is the first report in China", "Filling the domestic blank", "High academic value", "This study has not been reported in China" and "This study is at the leading level at home and abroad".

5. The content of the introduction should not be the same as the abstract, so be careful not to use polite words, such as "a little knowledge", "limited level", "please correct me" and "throwing a brick to attract jade"; It is best not to discuss the preface in sections, not to illustrate and list, not to deduce and prove formulas.

6. The general introduction should not be too long. Too long will bore readers, too short will make it difficult to explain clearly. For a paper of 3 000-5 000 words, the number of words in the introduction should generally be 200-250 words.

Baidu Encyclopedia-Abstract

Baidu Encyclopedia-Introduction