The introduction is the body part. The introduction of the paper is also called preface. Usually placed in front of the paper, it gives a preliminary introduction to the research involved in the paper, usually one or several short paragraphs. Generally speaking, the introduction of the paper is the preface of the paper.

Usually, the introduction of a paper should cover the following points: What is the research background of this paper? What is the point of this paper? What is the research method of this paper? Is the design method reasonable? What new discoveries can be made? Is it of academic value?

Key points of writing

Introduction, the opening work, write the introduction in front, and then you can study hard. As the saying goes, everything is difficult at the beginning. In ancient literary theory, it was known as "crested pig belly and leopard tail". Although scientific papers will not emphasize that the opening of the article is as beautiful, wonderful and fascinating as the phoenix head, the introduction is the first impression to readers and plays an important role in outlining the full text, which cannot be taken lightly.

(1) Explain the theme, scope and purpose of the paper.

(2) Explain the origin, background and brief historical review of related fields of this study. What did the predecessors do? Which ones have not been solved? How's it going so far? )

(3) Expected results or the significance of this study.

(4) The introduction is generally not segmented, and its length depends on the content of the paper. The introduction of papers involving basic research is long, and the clinical case analysis should be short. The introduction of most foreign papers is relatively long, generally around 1000 words, which may be related to the strict limitation of the number of words in most foreign journals.