语言是社会活动的产物,作为人类交际的工具,语言在人类的社会活动中总能发挥各种各样的功能。韩礼德提出的元功能之说是功能语法中的一个非常重要的组成部分。韩礼德把语言的元功能分为三类,即概念功能(包括经验功能和逻辑功能)、人际功能、语篇功能。根据韩礼德等人的观点,概念功能指的是语言对人们在现实世界(包括内心世界)中各种经历加以描述的功能:人际功能指的是讲话人运用语言参加社会活动的功能;而语篇功能指的则是语言使本身前后连贯、并 Language is the product of social activities. As a tool of human communication, language can always play a variety of functions in the social activities of mankind. Halliday’s meta-functional theory is a very important part of functional grammar. Halliday divides the metafunctions of language into three categories: conceptual functions (including empirical and logical functions), interpersonal functions and text functions. According to Halliday et al., Conceptual function refers to the function of language in describing people’s experiences in the real world (including the inner world): interpersonal function refers to the speaker’s ability to use language to participate in social activities; and discourse Function refers to the language before and after its coherent, and