| Abstract | 第1-4页 |
| 摘要 | 第4-5页 |
| Table of Contents | 第5-7页 |
| Chapter One Introduction | 第7-11页 |
| ·Importance of Studies on Discourse Markers | 第7-8页 |
| ·Objective of This Study | 第8-10页 |
| ·Methodology | 第10-11页 |
| Chapter Two Literature Review and Research Questions | 第11-31页 |
| ·General History of Discourse Markers | 第11-15页 |
| ·Previous Studies on Discourse Markers | 第11-14页 |
| ·Present Studies on Discourse Markers | 第14-15页 |
| ·Approaches on Discourse Markers | 第15-20页 |
| ·Schiffrin's Approach on Discourse Markers | 第16-17页 |
| ·Fraser's Approach on Discourse Markers | 第17-18页 |
| ·Blakemore's Approach on Discourse Markers | 第18-20页 |
| ·Research on Other Disciplinaries | 第20-22页 |
| ·Expand Discourse Markers to Written Language | 第20-21页 |
| ·Expand Discourse Markers Toward Other Subjects | 第21页 |
| ·Expand Discourse Markers to Teaching Field | 第21-22页 |
| ·Definition of Discourse Markers | 第22-25页 |
| ·The Discourse-Coherence-Based Approach | 第22-24页 |
| ·The Grammatical-Pragmatic View | 第24-25页 |
| ·The Cognitive-Pragmatic View | 第25页 |
| ·Classification of Discourse Markers | 第25-31页 |
| ·Discourse Markers for Contextual Implications | 第27-28页 |
| ·Discourse Markers for Expressing Denials | 第28-29页 |
| ·Discourse Markers for Describing Content | 第29-31页 |
| Chapter Three The Relevance Theory | 第31-37页 |
| ·The Relevance Theory | 第31-34页 |
| ·Ostensive-inferential Communication | 第31-33页 |
| ·Relevance and Contextual Effects | 第33-34页 |
| ·The Principle of Relevance | 第34页 |
| ·Relevance Theoretical Account of Discourse Markers | 第34-37页 |
| ·The Explicit and the Implicit | 第34-35页 |
| ·Conceptual Information and Procedural Information | 第35-37页 |
| Chapter Four Data Analysis | 第37-51页 |
| ·But as Guider of Procedure | 第37-39页 |
| ·But as a Signal of Contextual Coherence | 第39-41页 |
| ·But as a Signal of Choice-making | 第41-48页 |
| ·But as a Signal of Transition | 第42-44页 |
| ·But as a Signal of Amendment | 第44-46页 |
| ·But as a Signal of Supplement | 第46-48页 |
| ·But as a Way of Restraint | 第48-49页 |
| ·Summary | 第49-51页 |
| Chapter Five Reasons for Choices of DM | 第51-57页 |
| ·Social Status of the Speaker | 第51-52页 |
| ·Social Intercourse Objective | 第52-54页 |
| ·Contributing to Coherence in Context | 第54-57页 |
| Chapter 6 Conclusion | 第57-60页 |
| ·Summary and Major Findings and Significance of the Study | 第57-58页 |
| ·Research Limitations and Future Research | 第58-60页 |
| Works Cited | 第60-63页 |
| Acknowledgements | 第63-64页 |
