该论文介绍了交际教学法,它的起源,特点,及在大学生英语课堂教学中的应用。在采用交际教学法的课堂中,运用到信息差原理的活动。教师的角色以及科学的评价体系需保证该教学法的执行,同时提供一份交际教学法下的课堂教学实例。 This paper introduces communicative teaching method, its origin, characteristics and its application in college English classroom teaching. In the classroom using communicative approach, the activity of the principle of poor information is applied. The teacher’s role as well as the scientific evaluation system need to ensure the implementation of the pedagogical method and provide an example of classroom teaching under communicative pedagogy.