Think of the introduction as an inverted pyramid. You start with a broad overview and then go deep into the last element of the introduction-the hypothesis or statement of the article.

In the introduction, you try to tell readers the rationality of your work and prove that your work is an important part of your research field.

The introduction has no word limit, unlike the abstract, but it needs to be as concise as possible. It may be a tricky part, so many scholars like to write it at the end in case they miss the main points.

For a long research report, you can make an outline and write an introduction around it. The following are some examples of outlines: the introduction gives readers an overall understanding of the full text, but deals with some problems different from the abstract.

You should assume that the reader has a good background knowledge in your research field.

References:

http://www . 5 1 lunwen . org/Abstract/org 20 120425 1645447369 . html