Abstract: On the basis of multimodal metaphor theory and frame theory, six teaching video clips on the same subject are selected as data from SFLEP National College English Teaching Contest. 3 multimodal metaphors in teacher talk are summarized, and different frames behind metaphor are contrasted. It is revealed that multimodal metaphor theory and frame in teacher talk reflect teachers different educational philosophy. Due to different teaching methodologies and objectives, on the same subject teachers choose different multimodal metaphors and frames which account for to what extent the teaching contents gain acceptance with the students. Because of different modes, teachers foreground different aspects of the same frame and teaching metaphor.

Key words: teacher talk, frame theory, multimodal metaphor, educational philosophy

摘要： 以多模态隐喻和架构理论为依据，选取“外教社杯”全国大学英语教学大赛中同一主题6个教学视频为语料，归纳贯穿教师话语的3个多模态隐喻，对比分析隐喻背后的架构。研究发现，教师话语中的多模态隐喻和架构能反映教师的教育哲学观；对同一主题的教学，教师因教学理念和教学目标不同，选择了不同的多模态隐喻和架构，这些架构决定学生对教学内容接受度的高低；即使采用相同的架构和隐喻，因选择不同的模态，突显的方面亦不同。

关键词: 教师话语, 架构理论, 多模态隐喻, 教育哲学