| 中文摘要 | 第3-5页 |
| abstract | 第5-6页 |
| Chapter Ⅰ Introduction | 第9-15页 |
| 1.1 Research background | 第9-11页 |
| 1.2 Research Purpose and Significance | 第11-13页 |
| 1.2.1 Research Purpose | 第11-12页 |
| 1.2.2 Research Significance | 第12-13页 |
| 1.3 Structure of the thesis | 第13-15页 |
| Chapter Ⅱ Literature Review | 第15-33页 |
| 2.1 Understanding of Related Concepts | 第15-19页 |
| 2.1.1 Definition of Teacher Talk | 第15-16页 |
| 2.1.2 Features of Teacher Talk | 第16-17页 |
| 2.1.3 Classification of Teacher Talk | 第17-18页 |
| 2.1.4 Function of Teacher Talk | 第18-19页 |
| 2.2 Theoretical Foundations | 第19-25页 |
| 2.2.1 Input Hypothesis | 第19-21页 |
| 2.2.2 Interaction Hypothesis | 第21-22页 |
| 2.2.3 Output Hypothesis | 第22-23页 |
| 2.2.4 Appraisal Theory | 第23-25页 |
| 2.3 Previous Studies of Teacher Talk and Positive Discourse Analysis | 第25-33页 |
| 2.3.1 Previous Studies of Teacher Talk at Home and Abroad | 第25-30页 |
| 2.3.2 Previous Studies of Positive Discourse Analysis at Home and Abroad | 第30-33页 |
| Chapter Ⅲ Research Methodology | 第33-39页 |
| 3.1 Research Questions | 第33-34页 |
| 3.2 Research Subject | 第34-36页 |
| 3.3 Research Instrument | 第36-37页 |
| 3.4 Data Collection and Analysis | 第37-39页 |
| Chapter Ⅳ Results and Discussion | 第39-67页 |
| 4.1 Analysis of the Features of Teacher Talk | 第39-58页 |
| 4.1.1 The Features of Teacher’s Questioning | 第39-46页 |
| 4.1.2 The Features of Teacher’s Feedback | 第46-51页 |
| 4.1.3 Teacher’s Positive Discourse Analysis | 第51-58页 |
| 4.2 The Strategies of Teacher Talk | 第58-65页 |
| 4.2.1 The Strategies of Teacher’s Questioning | 第58-61页 |
| 4.2.2 The Strategies of Teacher’s Feedback | 第61-63页 |
| 4.2.3 The Strategies of Teacher’s Positive Discourse | 第63-65页 |
| 4.3 Results of the Interview | 第65-67页 |
| Chapter Ⅴ Conclusion | 第67-73页 |
| 5.1 Main Findings of the Study | 第67-69页 |
| 5.2 Suggestions | 第69-71页 |
| 5.3 Limitations and Recommendations for Further Research | 第71-73页 |
| References | 第73-78页 |
| Appendix 1 Video Observation Excerpt | 第78-84页 |
| Appendix 2 Interview outline | 第84-86页 |
| Acknowledgements | 第86页 |
