Modeling and its verification of the discourse structure of a junior high school simultaneous lesson

本研究以某国中一年级学生同声课语篇为研究对象，对学生的自发话语进行了分类整理，旨在建立将其纳入现有同声课语篇结构的模型。通过对一年多的课堂语篇数据的分析，提出了以下建议：(1)在初中同声课语篇结构中，自发话语的内容和出现的时间不同。(2)话语的内容存在一定的差异，出现的时间也不同。(3)自发话语的进入规则不同，或话语人的不同，就可以看出类别的差异。

In this research, paying attention to spontaneous utterance of the student seen by simultaneous lesson of the first-year student in a junior high school, classification arrangement of the utterance was carried out, and it aimed at establishing the model which included them in the discourse structure of the existing simultaneous lesson.The following things were suggested by analysis of the lesson discourse data over one year.(1) In the junior high school simultaneous lesson, spontaneous utterance had occurred to the various contents and timing.(2) A certain amount of difference by the contents of utterance was found by occurrence timing.(3) The class difference was seen by the difference between the entry rule of spontaneous utterance, or an utterance person.