The reason of this paper is also called introduction, which is the reason of this study, the theoretical or practical basis for choosing this study, the innovation of this study, and the theoretical and/or practical significance of this study.

First of all, it is necessary to introduce the historical background and theoretical basis of this topic, the research progress and achievements of predecessors or others on this topic, and whether there are different academic viewpoints in academic circles. Tell the reader clearly why this research should be conducted, and the sentences should be concise and straight to the point. If the research project has never been carried out by others, then the innovation is obvious, and the innovation of the research should be explained.

But in most cases, research projects have been carried out by predecessors. At this time, it is necessary to explain the differences and essential differences between this research and that research, rather than simply repeating the work of predecessors.

For the transformation of writer Yu Hua's works, the three-dimensional argument of his paper should start from these aspects, which are divided into horizontal and vertical, horizontal and depth, with horizontal as the time span of creation and vertical as the specific historical background of his works.

The horizontal direction is to extract the author's ideological core from the content of the work, and the jumping direction is to consider the major events in its specific history and analyze the relationship with the author, including the changes in outlook on life and world.

The research perspective of this paper needs to consider:

1. theoretical basis: determine the theoretical model and conceptual framework involved in the research problem, clarify the theoretical basis and scope of the research problem, and further clarify the research perspective.

2. Research methods: According to the research questions and theoretical basis, determine the corresponding research methods, adopt appropriate data collection and analysis methods, and use statistics, empirical research and case analysis to demonstrate.

3. Academic background: When studying the problem, we need to consider the academic development process, research frontiers and achievements in related fields, as well as the research situation of the international academic community on this issue, and put our own research in a broader academic background.

4. Practical application: the research perspective needs to combine practical problems and applications, consider the feasibility and practical application value of research results, and provide reference and solutions for practical problems.

When choosing the research perspective, we should determine the most suitable perspective according to the research problems and objectives, and make in-depth research by using relevant theories, methods and data reasonably. At the same time, the repeatability, credibility and practical application value of the research results need to be considered to ensure the scientific and practical research.