| Acknowledgements | 第5-6页 |
| 摘要 | 第6-8页 |
| Abstract | 第8-9页 |
| 1 Introduction | 第12-16页 |
| 1.1 Background of the research | 第12-13页 |
| 1.2 Significance of the research | 第13-14页 |
| 1.3 Purpose of the research | 第14页 |
| 1.4 Layout of the thesis | 第14-16页 |
| 2 Literature Review | 第16-34页 |
| 2.1 Teacher's scaffolding talk | 第16-22页 |
| 2.1.1 Definition of teacher's scaffolding talk | 第16-18页 |
| 2.1.2 Characteristics of teacher's scaffolding talk | 第18-20页 |
| 2.1.3 Types of teacher's scaffolding talk | 第20-22页 |
| 2.2 Previous studies on teacher's scaffolding talk | 第22-26页 |
| 2.2.1 Previous studies on teacher's scaffolding talk abroad | 第22-24页 |
| 2.2.2 Previous studies on teacher's scaffolding talk at home | 第24-25页 |
| 2.2.3 Summary of previous studies | 第25-26页 |
| 2.3 Theoretical basis | 第26-34页 |
| 2.3.1 Social cultural theory | 第26-30页 |
| 2.3.2 Input hypothesis and Output hypothesis | 第30-32页 |
| 2.3.3 Interaction hypothesis | 第32-34页 |
| 3 Research Design | 第34-40页 |
| 3.1 Research questions | 第34页 |
| 3.2 Research subjects | 第34-35页 |
| 3.3 Research instruments | 第35-37页 |
| 3.3.1 Interviews with teachers | 第36页 |
| 3.3.2 Questionnaire investigation for students | 第36页 |
| 3.3.3 Classroom observation and audio-recording | 第36-37页 |
| 3.4 Research procedure | 第37-40页 |
| 3.4.1 Data collection | 第37页 |
| 3.4.2 Data analysis | 第37-40页 |
| 4 Results and Discussion | 第40-78页 |
| 4.1 Teachers' and students' perceptions on teacher's scaffolding talk | 第40-47页 |
| 4.1.1 Teachers' perceptions on teacher's scaffolding talk | 第40-43页 |
| 4.1.2 Students' perceptions on teacher's scaffolding talk | 第43-47页 |
| 4.2 Means of teacher's scaffolding talk | 第47-64页 |
| 4.2.1 Modeling | 第48-50页 |
| 4.2.2 Repeating | 第50-52页 |
| 4.2.3 Reformulating | 第52-54页 |
| 4.2.4 Hinting | 第54-56页 |
| 4.2.5 Explaining | 第56-57页 |
| 4.2.6 Questioning | 第57-59页 |
| 4.2.7 Encouraging | 第59-61页 |
| 4.2.8 Telling | 第61-64页 |
| 4.3 Effects of teacher's scaffolding talk | 第64-78页 |
| 4.3.1 Support students' language development | 第65-69页 |
| 4.3.2 Support students' meta-cognitive development | 第69-70页 |
| 4.3.3 Support students' cognitive development | 第70-73页 |
| 4.3.4 Support students' affective development | 第73-78页 |
| 5 Conclusion | 第78-82页 |
| 5.1 Major findings | 第78-79页 |
| 5.2 Implications for EFL teaching | 第79-80页 |
| 5.3 Limitations and suggestions for further study | 第80-82页 |
| Bibliography | 第82-88页 |
| Appendix | 第88-104页 |
| Appendix A Teacher interview | 第88-89页 |
| Appendix B Students questionnaire | 第89-93页 |
| Appendix C Example of recording transcription | 第93-104页 |
