教师指令性话语是教师教学过程中最重要的话语之一。本文根据言语行为理论,对教师在英语教学中的指令性话语进行研究。通过分析发现在英语教学中,教师往往通过具有特定语法形式的句子发出指令性话语,表达教师的施为用意,具体表现在教师会采用重申、修正、以及语码转换等方式来维护其施为用意并向学生传达信息。 Teachers’ instructional discourse is one of the most important discourses in the teaching of teachers. Based on the speech act theory, this paper studies the instructive discourse of teachers in English teaching. Through the analysis, teachers found that in the teaching of English, teachers often issue the instructional discourse through sentences with specific grammatical forms to express the teacher’s intention, which is manifested in that the teacher will adopt the methods of reiteration, revision and code conversion Intention and message to students.