| ACKNOWLEDGEMENTS | 第3-4页 |
| ABSTRACT | 第4-5页 |
| 摘要 | 第6-11页 |
| Chapter One Introduction | 第11-14页 |
| 1.1 Research background | 第11-12页 |
| 1.2 Research purposes | 第12页 |
| 1.3 Research significance | 第12-13页 |
| 1.4 Organization of the thesis | 第13-14页 |
| Chapter Two Literature Review | 第14-30页 |
| 2.1 Definition of teacher talk | 第14-15页 |
| 2.2 Studies on interactional features of teacher talk | 第15-22页 |
| 2.2.1 Amount | 第15-16页 |
| 2.2.2 Questioning | 第16-19页 |
| 2.2.3 Interactional modification | 第19-20页 |
| 2.2.4 Feedback | 第20-22页 |
| 2.3 Studies on teacher talk home and abroad | 第22-26页 |
| 2.4 Theoretical framework | 第26-30页 |
| 2.4.1 Krashen's input hypothesis | 第26-27页 |
| 2.4.2 Long's interaction hypothesis | 第27-28页 |
| 2.4.3 Swain's output hypothesis | 第28-30页 |
| Chapter Three Research Design | 第30-35页 |
| 3.1 Research questions | 第30页 |
| 3.2 Research subjects | 第30-32页 |
| 3.3 Research instruments | 第32-33页 |
| 3.4 Data collection and analysis | 第33-35页 |
| Chapter Four Results and Discussion | 第35-56页 |
| 4.1 Features of teacher talk in junior middle school English classroom | 第35-51页 |
| 4.1.1 Amount | 第35-38页 |
| 4.1.2 Questioning | 第38-43页 |
| 4.1.3 Interactional modification | 第43-45页 |
| 4.1.4 Feedback | 第45-51页 |
| 4.2 Approaches to improve teacher talk | 第51-56页 |
| 4.2.1 To allocate teacher talk time reasonably by shifting their roles | 第51-52页 |
| 4.2.2 To promote students' output by encouraging more interaction | 第52-54页 |
| 4.2.3 To use feedbacks flexibly by focusing on students' affective factors | 第54-55页 |
| 4.2.4 To enhance teachers' awareness of their own talk by self-reflection | 第55-56页 |
| Chapter Five Conclusion and Implications | 第56-62页 |
| 5.1 Major findings | 第56-58页 |
| 5.2 Pedagogical implications | 第58-61页 |
| 5.3 The limitations of the study | 第61-62页 |
| REFERENCES | 第62-66页 |
| Appendices | 第66-75页 |
| Appendix Ⅰ 课堂话语语料转写凡例 | 第66-67页 |
| Appendix Ⅱ 初中英语课堂教师话语调查问卷 | 第67-69页 |
| Appendix Ⅲ 学生调查问卷结果 | 第69-70页 |
| Appendix Ⅳ Teachers' interview questions | 第70-71页 |
| Appendix Ⅴ Sample of the transcription | 第71-75页 |
| 攻读学位期间发表的学术论文 | 第75-77页 |
