Introduction is an integral part of the paper. The national standard stipulates the contents of the introduction and puts forward clear requirements. The introduction should briefly explain the research purpose, scope, previous work and knowledge gaps in related fields, theoretical basis and analysis, research ideas, research methods and experimental design, expected results and significance. The introduction should be brief and to the point, and should not be the same as the abstract. Don't make abstract comments. There is no need to repeat what is already known in general textbooks in the introduction. Short papers can only use a short paragraph as an introduction.

As the name implies, the introduction plays a guiding role. The introduction expounds the intention, motivation and purpose of writing, and points out what problems have been solved in order to arouse readers' interest and stimulate their desire to read the text next. At the same time, it plays the role of inducing readers to think in images to abstract thinking, and further lays the foundation for reading texts. Therefore, the writing of the introduction of academic papers in sci-tech journals should meet the following requirements:

1. The introduction should reflect the main content of the paper, prompt the writing intention, the core of the topic and the concluding point, and create conditions for guidance.

2. The introduction should be enlightening to open the reader's mind. Pay attention to the application of language, such as asking questions with interrogative sentences. Arouse readers' thinking and achieve the purpose of enlightenment and development.

3. For readers, using thinking science and psychological means, starting with the introduction, to improve readers' interest and attract readers to the paper, that is, to brew readers' emotions with the introduction.

It is not easy to write a good introduction. Many authors have many problems when writing an introduction. Therefore, Otsu Compilation reminds everyone that when writing the introduction of academic papers, sci-tech journals should pay attention to the following matters:

1. Get to the point, don't digress too far, try to be concise and don't write a summary.

Don't cry roast meat, evaluate yourself. Don't say how remarkable your achievements are, reaching the international advanced level and so on.

3. Don't directly say that you corrected someone's mistake, but positively explain the correctness of your results; We can say that some of our predecessors' work is consistent with our own, and we can also directly point out the knowledge gap and existing problems, and point out the achievements made on the basis of our predecessors.

4. Don't impose on others. If you write down the evaluation of your level by an authority, even if you have said something similar, it is not appropriate to publish it. If it really needs to be published, it must be approved by others.