1. Introduction

This article introduces the importance of grammatical metaphor in scientific knowledge construction, reviews the development and existing research of semantic wave theory, points out the shortcomings of existing research, and proposes the purpose and questions of this study.

2. Semantic Wave Theory and Its Types

Deeply explored the theory and types of semantic waves, emphasizing the importance of semantic gravity and semantic density in knowledge construction. Semantic waves achieve the transformation from abstract to concrete and then to abstract by deconstructing and reconstructing knowledge. Semantic waves have temporal and spatial characteristics, and their interaction drives the development of discourse meaning. According to Zhang Delu's classification, semantic waves can be divided into flat waves, up and down waves, and concave waves, reflecting different patterns of changes in semantic gravity and semantic density.

3. Types of Conceptual Grammar Metaphorical Semantic Waves

In depth exploration of the types of conceptual grammar metaphorical semantic waves and their role in knowledge construction in disciplinary discourse. Firstly, the concept of "consistency" was explained as a criterion for judging metaphorical expressions, and different understandings of the connotation of consistency in academia were summarized. Subsequently, the semantic process of metaphorical metaphors was analyzed, emphasizing the importance of semantic gravity and semantic density in defining the occurrence of grammatical metaphors. The semantic wave patterns of conceptual grammatical metaphors were discussed, including the transformation process from consistency to metaphorical and their dependence on context.

4. The construction of knowledge in disciplinary discourse through nominalization, conceptual grammar, metaphorical semantic waves

In depth exploration of the role of nominalization concepts, grammar metaphors, and semantic waves in knowledge construction in disciplinary discourse. Maton (2011) believes that the fluctuation of semantic waves is a key factor driving the construction of disciplinary knowledge, and grammatical metaphors play an important role in this process. This study takes natural science discourse as the research object, and by comparing the technicality of different disciplinary discourses, it is found that the knowledge structure of natural science discourse has stronger coherence, systematicity, and hierarchy, and tends to use conceptual grammar metaphors to construct general propositions or theories.

5. Conclusion

This paper summarizes the application of semantic wave theory in interdisciplinary research on conceptual grammar metaphor, analyzes the role of nominalized conceptual grammar metaphor semantic waves in constructing knowledge structures in physics discourse, points out the complementarity of semantic concave waves and semantic flat waves, and the contribution of explicit conceptual grammar metaphor semantic waves to the process of disciplinary knowledge construction and interdisciplinary research.