社会学家Karl Maton通过继承与发展Bernstein的语码理论与知识结构理论,创立了“合理化语码理论”(Legitimation Code Theory,简称LCT)。自本世纪初,系统功能语言学(SFL)一直与LCT进行着跨学科对话。本文探讨三个问题:1)LCT的主要内容有哪些?2)在现阶段研究中,LCT与SFL在哪些方面联系紧密?3)这两门理论如何展开合作?我们认为:LCT中的“语义性”原则与SFL联系最为紧密;在课堂教学中,语义波与权力词汇、权力语法、权力话语组织紧密合作,为学生建构非常识性知识提供了保障。 The sociologist Karl Maton founded “Legitimation Code Theory” (LCT) by inheriting and developing Bernstein’s code theory and knowledge structure theory. Since the beginning of this century, SFL has been interdisciplinary with LCT. In this study, which aspects of LCT and SFL are closely linked? 3) How do these two theories work together? In our opinion, the “ Semantic ”principle is most closely related to SFL; in classroom teaching, semantic wave works closely with power vocabulary, power grammar and power discourse organization, which provides a guarantee for students to construct knowledge of non-intellectual.