教师话语是教师实施课堂教学的主要手段和媒介,它既反映了课堂教学的过程,又直接影响了教学质量。所以,教师课堂上的话语使用是否得当,会直接关系到课堂教学能否顺利进行,以及能否有效地帮助学生建构知识。从内容上看,它包括课堂用语、教学用语、师生交际用语和教师反馈用语;从课堂形式上看,它包括问候语、指令用语、鼓 Teachers’ discourse is the main means and medium for teachers to implement classroom teaching. It not only reflects the process of classroom teaching, but also directly affects the quality of teaching. Therefore, the proper use of discourse in teachers’ classrooms will be directly related to the smooth progress of classroom teaching, and whether it can effectively help students construct knowledge. From the content point of view, it includes the classroom language, teaching language, teacher-student communication language and teacher feedback terms; from the class point of view, it includes greeting, instructional phrases, drums