| Acknowledgements | 第4-5页 |
| Abstract | 第5-7页 |
| 摘要 | 第8-13页 |
| Chapter One Introduction | 第13-17页 |
| 1.1 Research Background | 第13-14页 |
| 1.2 Purpose and Significance of the Thesis | 第14-15页 |
| 1.3 Organization of the Thesis | 第15-17页 |
| Chapter Two Literature Review | 第17-28页 |
| 2.1 Relevant Studies Abroad | 第17-22页 |
| 2.1.1 Foreign Studies on Discourse Markers | 第17-21页 |
| 2.1.2 Foreign Studies on Discourse Marker So | 第21-22页 |
| 2.2 Relevant Studies at Home | 第22-27页 |
| 2.2.1 Domestic Studies on Discourse Marker | 第22-26页 |
| 2.2.2 Domestic Studies on Discourse Marker So | 第26-27页 |
| 2.3 Summary | 第27-28页 |
| Chapter Three Theoretical Framework | 第28-34页 |
| 3.1 The Principles of Relevance Theory | 第28-29页 |
| 3.2 Ostensive-inferential Communication | 第29-30页 |
| 3.3 Contextual Assumptions | 第30-32页 |
| 3.4 Summary | 第32-34页 |
| Chapter Four Methodology | 第34-38页 |
| 4.1 Research Questions | 第34页 |
| 4.2 Research Instruments | 第34-35页 |
| 4.3 Data Collection | 第35-36页 |
| 4.4 Analytical procedures | 第36-37页 |
| 4.5 Summary | 第37-38页 |
| Chapter Five Pragmatic Functions and Unique Features of So in Doctor House | 第38-72页 |
| 5.1 Pragmatic Functions of So in Doctor House | 第38-64页 |
| 5.1.1 Identification of Discourse Marker So | 第38-39页 |
| 5.1.2 Classification of the Pragmatic Functions of DM So | 第39-41页 |
| 5.1.3 Classification of the Pragmatic Functions of Discourse Marker So inDoctor House | 第41-43页 |
| 5.1.4 Contextual Implication Functions of Discourse Marker So | 第43-56页 |
| 5.1.4.1 So as a Conversation Initiating Marker | 第44-45页 |
| 5.1.4.2 So as a Continuing Marker | 第45-46页 |
| 5.1.4.3 So as a Turn-Taking Marker | 第46-48页 |
| 5.1.4.4 So as a Topic Shifting Marker | 第48-50页 |
| 5.1.4.5 So as a Topic Resumption Marker | 第50-51页 |
| 5.1.4.6 So as a Concluding Marker | 第51-52页 |
| 5.1.4.7 So as an Inference Marker | 第52-54页 |
| 5.1.4.8 So as a Request Marker | 第54-55页 |
| 5.1.4.9 So as a Hesitation or Uncertainty Marker | 第55-56页 |
| 5.1.5 Emotional Functions of Discourse Marker So | 第56-64页 |
| 5.1.5.1 So as a Marker to Introduce Worry | 第57-58页 |
| 5.1.5.2 So as a Marker to Introduce Surprise | 第58-59页 |
| 5.1.5.3 So as a Marker to Introduce Depression | 第59-60页 |
| 5.1.5.4 So as a Marker to Introduce Irony | 第60-62页 |
| 5.1.5.5 So as a Marker to Introduce Dissatisfaction | 第62页 |
| 5.1.5.6 So as a Marker to Introduce Doubt | 第62-63页 |
| 5.1.5.7 So as a Marker to Introduce Impatience | 第63-64页 |
| 5.2 The Unique Features of Discourse Marker So in the Medical Field | 第64-71页 |
| 5.2.1 Unique feature on Ratio | 第65-68页 |
| 5.2.2 Unique Feature on Distribution | 第68-71页 |
| 5.3 Summary | 第71-72页 |
| Chapter Six Conclusion | 第72-77页 |
| 6.1 Major Findings of This Study | 第72-74页 |
| 6.2 Implications of This Study | 第74-75页 |
| 6.3 Limitations of This Study and Suggestions for Further Studies | 第75-77页 |
| Works Cited | 第77-80页 |
| Appendix | 第80-93页 |
| Publication | 第93页 |
