Metaphorical competence, as a core cognitive dimension of second language acquisition, directly affects learners' deep vocabulary acquisition, discourse construction quality, and cross-cultural communication competence. However, its development process is dynamically constrained by multiple factors such as language proficiency, cognitive style, cultural schema differences, and neural plasticity. The Integrated Idiomatic Metaphorical Competence Development Model (IIDMC) based on interdisciplinary literature integration reveals that this ability presents a four-dimensional structure of original output, explanatory fluency, meaning extraction rate, and polysemy processing, and achieves multimodal representation and creative application through nonlinear dynamic interaction. This model emphasizes the three-dimensional collaborative mechanism of neural, cognition and context, providing a scientific framework for innovation in second language teaching. In the future, it is necessary to integrate eye movement and EEG multimodal assessment technology and explore immersive training paths driven by artificial intelligence and mixed reality to build a personalized intelligent learning ecosystem.

Peifu Liu, Jiaping Xing. Construction of Integrated Idiomatic Metaphorical Competence Development Model and Implications for Second Language Acquisition. International Journal of New Developments in Education (2025), Vol. 7, Issue 4: 86-93. https://doi.org/10.25236/IJNDE.2025.070413.

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