英语中表示被动语义的典型结构为“BE+V-ED”,但作为一个分析性语言 ,不仅某些主动形式的动词句型能够表示被动语义 ,形容词、名词、副词以及不定式的主动形式也可表达被动语义。同时 ,主、被动态的转换也会受到结构、语义、语境及频度方面的限制。本文试图以语言学理论为依据 ,从实际使用的角度对以上问题作一概要论述 ,这将对语言教学有一定的实用价值 In English, the typical structure of passive semantics is “BE + V-ED”. However, as an analytical language, not only some active verb patterns can represent passive semantics, adjectives, nouns, adverbs, and infinitive active forms Can express passive semantics. At the same time, the main and the dynamic conversion will also be structural, semantic, contextual and frequency constraints. This article tries to use the theory of linguistics as a basis, from a practical point of view to make a summary of the above problems, which will have some practical value of language teaching