| Abstract | 第1-6页 |
| 摘要 | 第6-9页 |
| ChapterⅠ Introduction | 第9-15页 |
| ·Rationale of the Study | 第9-10页 |
| ·The Significance of the Study | 第10-11页 |
| ·Data Collection and Research Method | 第11-13页 |
| ·Structure of the Thesis | 第13-15页 |
| ChapterⅡ Literature Review | 第15-26页 |
| ·Definition of Hedges | 第15-16页 |
| ·The Study of Hedges Abroad | 第16-22页 |
| ·Zadeh’s Study of Hedges | 第16-17页 |
| ·Lakoff’s Study of Hedges | 第17-18页 |
| ·Other Foreign Scholars' Studies on Hedging | 第18-22页 |
| ·The Study of Hedges at Home | 第22-26页 |
| ·Wu Tieping's Study of Hedges | 第22-24页 |
| ·Other Chinese Scholars' Studies on Hedges | 第24-26页 |
| Chapter Ⅲ Relevance-theoretical Framework | 第26-35页 |
| ·Relevance | 第26-27页 |
| ·Two Principles of RelevanceTheory | 第27-28页 |
| ·Cognitive Principle of Relevance | 第27-28页 |
| ·Communicative Principle of Relevance | 第28页 |
| ·Basic Concepts in Relevance Theory | 第28-35页 |
| ·Concept of Context in Relevance Theory | 第28-31页 |
| ·Concept of Communication in Relevance Theory | 第31-33页 |
| ·Concept of Inference in Relevance Theory | 第33-35页 |
| Chapter Ⅳ Analysis of Hedges inFriends | 第35-55页 |
| ·The Frequency of Hedges in Friends | 第35页 |
| ·Classification of Hedges in Friends | 第35-42页 |
| ·Approximators | 第36-39页 |
| ·Shields | 第39-42页 |
| ·Relevance Theory and Hedges in Friends | 第42-48页 |
| ·Mutual Manifestness and Hedges | 第42-44页 |
| ·Ostensive Inference and Hedges | 第44-45页 |
| ·Optimal Relevance and Hedges in Friends | 第45-48页 |
| ·Functions of Hedges Based on Relevance Theory | 第48-55页 |
| ·Accuracy in Everyday Communication | 第48-50页 |
| ·Flexibility | 第50-51页 |
| ·Politeness | 第51-52页 |
| ·Adaptation to Relevance | 第52-53页 |
| ·Self-protection | 第53-55页 |
| Chapter Ⅴ Conclusion | 第55-59页 |
| ·Summary of the Study | 第55-56页 |
| ·Implications | 第56-57页 |
| ·Limitations and Suggestions for Further Study | 第57-59页 |
| Bibliography | 第59-62页 |
| Acknowledgements | 第62-63页 |
| Academic Achievements | 第63页 |
