| Acknowledgements | 第1-5页 |
| Abstract (English) | 第5-7页 |
| Abstract (Chinese) | 第7-11页 |
| Chapter 1 Introduction | 第11-15页 |
| ·The Object of the Study | 第11-12页 |
| ·The Purpose of the Study | 第12-13页 |
| ·The Significance of the Study | 第13-14页 |
| ·The Organization of the Thesis | 第14-15页 |
| Chapter 2 Literature Review and an Overview of Discourse Markers | 第15-29页 |
| ·Different Perspectives on Discourse Markers | 第15-21页 |
| ·The Syntactic-pragmatic Perspective on Discourse Markers | 第15-16页 |
| ·The Semantic-pragmatic Perspective on Discourse Markers | 第16-19页 |
| ·The Cognitive-pragmatic Perspective on Discourse Markers | 第19-21页 |
| ·The Adaptation Perspective on Discourse Markers | 第21页 |
| ·Domestic Studies on Discourse Markers | 第21-23页 |
| ·An Overview of Discourse Markers | 第23-28页 |
| ·Definitions of Discourse Markers | 第23-26页 |
| ·Characteristics of Discourse Markers | 第26-28页 |
| ·Connectivity | 第26-27页 |
| ·Optionality | 第27页 |
| ·Non-Truth-Conditionality | 第27-28页 |
| ·Summary | 第28-29页 |
| Chapter 3 Theoretical Framework and Research Design of the Study | 第29-37页 |
| ·Ideational Function | 第29-31页 |
| ·Interpersonal Function | 第31-32页 |
| ·Textual Function | 第32-34页 |
| ·Research Design of the Study | 第34-36页 |
| ·Hypotheses | 第34-35页 |
| ·Research Questions | 第35页 |
| ·Methodology and Data | 第35-36页 |
| ·Possible Conclusion | 第36页 |
| ·Summary | 第36-37页 |
| Chapter 4 An Overview of Chinese Discourse Marker"当然" | 第37-48页 |
| ·Distribution of "当然" in Chinese | 第37-39页 |
| ·Semantic Features of "当然" | 第39-41页 |
| ·Syntactic Features of "当然" | 第41-42页 |
| ·Classifications of "当然" as a Discourse Marker | 第42-46页 |
| ·Answer Marker | 第42-43页 |
| ·Topic-change Marker | 第43页 |
| ·Adversative Marker | 第43-44页 |
| ·Additive Marker | 第44-45页 |
| ·Mitigator | 第45-46页 |
| ·Summary | 第46-48页 |
| Chapter 5 Functions of "当然" as a Discourse Marker | 第48-63页 |
| ·Textual Functions of the Discourse Marker "当然" | 第48-55页 |
| ·The Coherence Function of the Discourse Marker "当然" | 第49-51页 |
| ·The Continuation Function of the Discourse Marker "当然" | 第51-53页 |
| ·The Constraining Function of the Discourse Marker "当然" | 第53-54页 |
| ·The Focus-foregrounding Function of the Discourse Marker "当然" | 第54-55页 |
| ·The Topic Transition Function of the Discourse Marker "当然" | 第55页 |
| ·Interpersonal Functions of the Discourse Marker "当然" | 第55-58页 |
| ·Pragmatic Functions of the Discourse Marker "当然" | 第58-62页 |
| ·The Awareness of Confirmation | 第58-59页 |
| ·The Awareness of Correction | 第59-60页 |
| ·The Awareness of Emphasis | 第60-61页 |
| ·The Awareness of Making a Conclusion | 第61-62页 |
| ·Summary | 第62-63页 |
| Chapter 6 Conclusion | 第63-66页 |
| Bibliography | 第66-69页 |
