| Abstract | 第4-5页 |
| 摘要 | 第6-11页 |
| Chapter 1 Introduction | 第11-15页 |
| 1.1 Research Background | 第11-12页 |
| 1.2 Research Significance | 第12-15页 |
| 1.2.1 Theoretical Significance | 第12-13页 |
| 1.2.2 Practical Significance | 第13-15页 |
| Chapter 2 Literature Review | 第15-27页 |
| 2.1 Relevant Researches on Classroom Discourse | 第15-21页 |
| 2.2 Relevant Researches on Teachers’ Roles | 第21-25页 |
| 2.3 Relevant Researches on Construction of Teachers’ Roles through Classroom Discourse | 第25-27页 |
| Chapter 3 Theoretical Basis | 第27-32页 |
| 3.1 Social-cultural Theory | 第27-28页 |
| 3.2 Fairclough’s Three-dimensional Discourse Model | 第28-30页 |
| 3.3 Enlightenment of Theory to This Research | 第30-32页 |
| Chapter 4 Research Design | 第32-38页 |
| 4.1 Research Questions | 第32页 |
| 4.2 Research Subject | 第32-33页 |
| 4.3 Research Methods | 第33-36页 |
| 4.3.1 Classroom Observation | 第34-35页 |
| 4.3.2 After-class Interview | 第35页 |
| 4.3.3 Questionnaire Survey | 第35-36页 |
| 4.4 Data Collection | 第36-38页 |
| Chapter 5 Current Situation Analysis and Existing Problems | 第38-44页 |
| 5.1 Characteristics of English Teacher’s Classroom Discourse | 第38-40页 |
| 5.2 Current Situation of English Teachers’ Classroom Discourse | 第40-41页 |
| 5.3 Problems in Classroom Discourse Used by English Teachers | 第41-44页 |
| Chapter 6 Construction of English Teachers’ Roles through Classroom Discourse in JuniorMiddle School | 第44-63页 |
| 6.1 Classification of English Teachers’ Classroom Roles | 第44-45页 |
| 6.2 Teachers as Imparters | 第45-48页 |
| 6.3 Teachers as Promoters | 第48-53页 |
| 6.3.1 Function of Guiding Students | 第48-50页 |
| 6.3.2 Function of Stimulating Emotion | 第50-53页 |
| 6.4 Teachers as Consultants | 第53-56页 |
| 6.4.1 Function of Error Correction | 第53-55页 |
| 6.4.2 Function of Evaluation | 第55-56页 |
| 6.5 Teachers as Organizers | 第56-60页 |
| 6.5.1 Function of Organizing Interaction | 第56-58页 |
| 6.5.2 Function of Creating Learning Atmosphere | 第58-60页 |
| 6.6 Students’ Cognition of Teacher’s Roles and Classroom Discourse | 第60-63页 |
| Chapter 7 Conclusion and Enlightenment | 第63-69页 |
| 7.1 Conclusion | 第63-66页 |
| 7.1.1 Characteristics of Appropriate Classroom Discourse of English Teachers in JuniorMiddle School | 第63-64页 |
| 7.1.2 Teachers’ Roles Reflected by Teachers’ Classroom Discourse | 第64-65页 |
| 7.1.3 Construction Mechanism of Teachers’ Roles through Classroom Discourse | 第65-66页 |
| 7.1.4 Limitations | 第66页 |
| 7.2 Enlightenment | 第66-69页 |
| 7.2.1 Enlightenment to English Teaching in Junior Middle School | 第66-67页 |
| 7.2.2 Enlightenment to English Teachers’ Professional Development in Junior MiddleSchool | 第67-69页 |
| References | 第69-73页 |
| Appendix 1 | 第73-74页 |
| Appendix 2 | 第74-75页 |
| Appendix 3 | 第75-78页 |
| 学位论文数据集 | 第78-80页 |
| Acknowledgements | 第80页 |
