英语主位同等结构是一种比较特殊的主位结构,在语言的日常使用中我们经常用到。语言学领域一般从传统语法的角度对其进行解读并揭示句法结构,但鲜有涉及其句法和语用功能。拟对该结构进行系统功能视角下的经验功能分析,为我们了解该结构的功能提供更多的借鉴。 Thematic equivalence of English is a special kind of thematic structure, which we often use in the daily use of language. The field of linguistics generally interprets and reveals the syntactic structure from the perspective of traditional grammar, but seldom involves its syntactic and pragmatic functions. It is proposed to analyze the experience function of the structure from the perspective of system function and provide more references for us to understand the function of the structure.