Abstract
The purpose of this study is to analyze the difference in discourse structures of conversation models on making requests. 23 model conversations were taken from different levels of Japanese textbooks and analyzed. The viewpoints are; 1) the complexity of the discourse structure itself, 2) the complexity of combinations of different types of discourses, 3) the effect of the contents in making requests or relationship between participants in the conversation, 4) non-stereotyped discourse structure in making requests. It is suggested that the discourse structures of intermediate or advanced level textbooks are more interactive and more complex than beginning level.
