| Acknowledgements | 第1-7页 |
| Abstract in English | 第7-9页 |
| Abstract in Chinese | 第9-13页 |
| Chapter 1 Introduction | 第13-17页 |
| ·Background of the Study | 第13-14页 |
| ·Significance of the Study | 第14-15页 |
| ·Overall Structure of the Thesis | 第15-17页 |
| Chapter 2 Literature Review | 第17-28页 |
| ·Previous Studies on Mitigation Strategies | 第17-21页 |
| ·Definition and Classification | 第17-18页 |
| ·The Sociolinguistic Approach | 第18-19页 |
| ·The Cross-culture Pragmatic Approach | 第19-20页 |
| ·The Pragmatic Approach | 第20-21页 |
| ·Vershueren’s Adaptation Theory | 第21-25页 |
| ·Making Linguistic Choices | 第22页 |
| ·Three Properties of Language | 第22-23页 |
| ·Contextual Correlates of Adaptability | 第23-25页 |
| ·Political Interview talks | 第25-26页 |
| ·Definition of Political Interview talks | 第25-26页 |
| ·Language Characteristics of Political Interview talks | 第26页 |
| ·Studies of Political Interview talks at Home and Abroad | 第26-28页 |
| ·The Study of Political Interview talks at Home | 第26页 |
| ·The Study of Political Interview talks Abroad | 第26-28页 |
| Chapter 3 Research Methodology | 第28-33页 |
| ·Research Questions | 第28页 |
| ·Data Collection | 第28-30页 |
| ·Data Presentation | 第30-33页 |
| Chapter 4 Analysis of Mitigation Strategies in Political Interview talks Based onAdaptation Theory | 第33-54页 |
| ·The Distribution of Mitigation Strategies | 第33-34页 |
| ·Mitigation Strategies Employed in Political Interview Talks | 第34-44页 |
| ·Bushes | 第35-37页 |
| ·Hedges | 第37-42页 |
| ·Shields | 第42-44页 |
| ·Mitigation Strategies as An Adaptation to the Contexual Correlates | 第44-54页 |
| ·Adaptation to Mental World | 第45-49页 |
| ·Adaptation to the Social World | 第49-51页 |
| ·Adaptation to Physical World | 第51-54页 |
| Chapter 5 Conclusion | 第54-57页 |
| ·Major Research Findings | 第54-55页 |
| ·Limitations of the Research | 第55-56页 |
| ·Suggestions for Further Studies | 第56-57页 |
| References | 第57-60页 |
