| Abstract | 第1-11页 |
| 摘要 | 第11-13页 |
| Chapter One Introduction | 第13-16页 |
| ·The Research Background | 第13页 |
| ·The Aim of the Present Study | 第13-14页 |
| ·The Signincance of the Study | 第14页 |
| ·Organization of the Thesis | 第14-16页 |
| Chapter Two Literature Review | 第16-32页 |
| ·Mediation | 第16-17页 |
| ·The Definition of Mediation | 第16-17页 |
| ·The Functions of Mediation | 第17页 |
| ·Language as a Mediational Tool of Thinking | 第17-18页 |
| ·Language and Knowledge Construction by Neil Mercer | 第18-19页 |
| ·Knowledge Construction in Classroom Teaching | 第18-19页 |
| ·Language as a Social Mode ofThinking in Classroom Teaching | 第19页 |
| ·Teacher Talk in Knowledge Construction | 第19-22页 |
| ·The Definition of Teacher Talk | 第19-20页 |
| ·Teacher Talk by Neil Mercer | 第20-21页 |
| ·Teacher Talk in Students' Knowledge Construction | 第21-22页 |
| ·Previous Studies | 第22-31页 |
| ·Studies of Teacher Talk | 第22-26页 |
| ·Studies of Teacher Talk Abroad | 第22-23页 |
| ·Studies of Teacher Talk in China | 第23-26页 |
| ·Limitations of the Studv of Teacher Talk in China | 第26页 |
| ·Studies of Teacher Talk from the Perspective of Mediation | 第26-31页 |
| ·Studies of Teacher Talk from the Perspective of Mediation Abroad | 第26-28页 |
| ·Studies of Teacher Talk from the Perspective of Mediation in China | 第28-30页 |
| ·Limitations of the study of Teacher Talk from the Perspective of Mediation inChina | 第30-31页 |
| ·Summary | 第31-32页 |
| Chapter Three Methodology | 第32-36页 |
| ·Research Questions | 第32页 |
| ·Subjects and Setting | 第32页 |
| ·The Instrument | 第32-33页 |
| ·Procedures | 第33-34页 |
| ·Data Collection and Analysis | 第34-35页 |
| ·Summary | 第35-36页 |
| Chapter Four Results and Discussion | 第36-49页 |
| ·Results and Analysis | 第36-46页 |
| ·Results of Research Question 1 | 第36-38页 |
| ·Results of Research Question 2 | 第38-45页 |
| ·Summary | 第45-46页 |
| ·Discussion | 第46-48页 |
| ·TT as a Mediational Tool for Collective Thinking | 第46-47页 |
| ·TT as a Mediational Tool for Students' Knowledge Construction | 第47-48页 |
| ·Summary | 第48-49页 |
| Chapter Five Conclusion | 第49-54页 |
| ·Major Findings | 第49-50页 |
| ·Pedagogical Implications | 第50-52页 |
| ·Raising Teachers' Awareness of Using TT to Guide Students to Do CollectiveThinking and Construct Knowledge | 第50页 |
| ·Using and Improving Different Kinds of Techniques in English TeachingFlexibly and Consciously | 第50-51页 |
| ·Designing More Meaningful Knowledge Construction Activities and Contexts | 第51-52页 |
| ·Limitations | 第52页 |
| ·Suggestions for Future Research | 第52-54页 |
| Bibliography | 第54-60页 |
| Appendix Transcript of Classroom Teaching Records and Observation | 第60-63页 |
| Sample 1 | 第60-61页 |
| Sample 2 | 第61-63页 |
| Acknowledgements | 第63-64页 |
| Publication | 第64页 |
