| 摘要 | 第1-8页 |
| Abstract | 第8-12页 |
| 1 Introduction | 第12-23页 |
| ·Basic Understanding of but | 第14-17页 |
| ·An Etymological Point of View of but | 第14-16页 |
| ·The Core Meaning of but | 第16-17页 |
| ·Previous Studies on the Discourse Marker but | 第17-20页 |
| ·Purposes and Significance | 第20-21页 |
| ·Layout of the Thesis | 第21-23页 |
| 2 Theoretical Background | 第23-33页 |
| ·Theory of Adaptation | 第23-27页 |
| ·Making Choices | 第24-25页 |
| ·Metapragmatic Awareness | 第25-26页 |
| ·Metapragmatic Strategy | 第26-27页 |
| ·Theory of Relevance | 第27-33页 |
| ·The Notion of Context | 第27-28页 |
| ·Ostensive-inferential Model | 第28-30页 |
| ·Conceptual Information and Procedural Information | 第30-33页 |
| 3 But: Metapragmatics-based Analysis | 第33-58页 |
| ·But as a Discourse Constructor | 第33-39页 |
| ·Connectivity between Utterances | 第34-38页 |
| ·Connectivity between Context and Utterance(s) | 第38-39页 |
| ·But as a Metapragmatic Functioner | 第39-54页 |
| ·But as an Indicator of Intentions | 第41-43页 |
| ·But as an Externalizer of Strategies | 第43-51页 |
| ·Strategy of Denial | 第45-47页 |
| ·Strategy of Correction | 第47-49页 |
| ·Strategy of Compensation | 第49-51页 |
| ·But as an Expresser of Emotion | 第51-54页 |
| ·But as an Active Pragmatic Constraint | 第54-56页 |
| ·Summary | 第56-58页 |
| 4. But: Relevance-based Analysis | 第58-78页 |
| ·But as an Indicator of Procedure | 第58-60页 |
| ·But as a Contextualization Cue | 第60-63页 |
| ·But as a Relevant Indicator of Strategies | 第63-72页 |
| ·But as a Relevant Indicator of Denial Strategy | 第64-67页 |
| ·But as a Relevant Indicator of Corrective Strategy | 第67-69页 |
| ·But as a Relevant Indicator of Compensative Strategy | 第69-72页 |
| ·But as a Relevant Indicator of Emotion | 第72-74页 |
| ·But as a Passive Pragmatic Constraint | 第74-77页 |
| ·Summary | 第77-78页 |
| 5. Conclusion | 第78-82页 |
| ·Findings of the Study | 第78-80页 |
| ·Limitations and Suggestions for Future Research | 第80-82页 |
| Acknowledgements | 第82-83页 |
| Bibliography | 第83-88页 |
| Article Publication | 第88页 |
