| Acknowledgements | 第1-5页 |
| 摘要 | 第5-6页 |
| ABSTRACT | 第6-8页 |
| Table of Contents | 第8-10页 |
| List of Abbreviations | 第10-11页 |
| Chapter 1 Introduction | 第11-17页 |
| ·Research Background | 第11-13页 |
| ·Research Motivation and Objectives | 第13-15页 |
| ·An Overall Structure of the Paper | 第15-17页 |
| Chapter 2 Literature Review | 第17-31页 |
| ·Brief Review of Studies on Teacher Talk | 第17-20页 |
| ·Definitions of Teacher Talk | 第17-19页 |
| ·Features of Teacher Talk | 第19-20页 |
| ·Brief Review of Studies on Directives | 第20-25页 |
| ·Definitions of Directives | 第20-22页 |
| ·Features and Functions of Directives | 第22-25页 |
| ·Theoretical Framework | 第25-31页 |
| ·Speech Act Theory | 第25-27页 |
| ·Input Hypothesis | 第27-28页 |
| ·Feuerstein Theory of Mediation | 第28-31页 |
| Chapter 3 Research Design | 第31-35页 |
| ·Research Questions and Objectives | 第31页 |
| ·Research Participants | 第31-32页 |
| ·Research Methods and Procedures | 第32页 |
| ·Data Collection | 第32-35页 |
| Chapter 4 Results and Discussion | 第35-49页 |
| ·Results and Discussion on Classroom Observation | 第35-46页 |
| ·The Sentence Structures of Teacher Directives | 第35-39页 |
| ·The Instructional Functions of Teacher Directives | 第39-40页 |
| ·Kinds of Classroom Directives That Make Students Take Part in Activities Better | 第40-46页 |
| ·Results and Discussion on Interview | 第46-49页 |
| Chapter 5 Concluding Remarks | 第49-53页 |
| ·Major Findings | 第49-50页 |
| ·Pedagogical Implications and Suggestions | 第50-52页 |
| ·Limitations and Prospects | 第52-53页 |
| Bibliography | 第53-55页 |
| Appendix | 第55-56页 |