| Abstract | 第8-9页 |
| 摘要 | 第10-12页 |
| List of Abbreviations | 第12-13页 |
| Chapter One Introduction | 第13-16页 |
| 1.1 Background of the Study | 第13-14页 |
| 1.2 Research Aims | 第14页 |
| 1.3 Significance of the Study | 第14-15页 |
| 1.4 Organization of the Thesis | 第15-16页 |
| Chapter Two Literature Review | 第16-30页 |
| 2.1 Related Study of Hedges Abroad and at Home | 第16-26页 |
| 2.1.1 Definitions of Hedges | 第16-19页 |
| 2.1.2 Classifications of Hedges | 第19-24页 |
| 2.1.3 Functions of Hedges | 第24-26页 |
| 2.2 Disaster News | 第26-29页 |
| 2.2.1 Definitions of Disaster News | 第26-27页 |
| 2.2.2 Features of Disaster News | 第27-28页 |
| 2.2.3 Related Studies of Hedges in Disaster News | 第28-29页 |
| 2.3 Summary | 第29-30页 |
| Chapter Three Theoretical Framework | 第30-36页 |
| 3.1 Verschueren’s Adaptation Theory | 第30-34页 |
| 3.1.1 Language Use as a Process of Choice Making | 第30-31页 |
| 3.1.2 Three Properties of Language | 第31-32页 |
| 3.1.3 The Four Angles of Verschueren’s Adaptation Theory | 第32-34页 |
| 3.2 Theoretical Interpretation of Hedges in Disaster News | 第34-36页 |
| 3.2.1 Hedges as a Result of Linguistic Choices | 第34页 |
| 3.2.2 Hedges as a Result of Three Properties of Language | 第34-35页 |
| 3.2.3 Hedges as a Result of Context Adaptation | 第35-36页 |
| Chapter Four Research Methods | 第36-39页 |
| 4.1 Research Questions | 第36页 |
| 4.2 Research Data | 第36-37页 |
| 4.3 Research Procedures | 第37-39页 |
| Chapter Five Results and Discussion | 第39-62页 |
| 5.1 Data Analysis | 第39-43页 |
| 5.1.1 The Frequency and Distribution of Hedges in CDNC and EDNC | 第39-41页 |
| 5.1.2 The Specific Distribution of Four Types of Hedges in CDNC and EDNC | 第41-42页 |
| 5.1.3 The Similarities and Differences of the Use of Four Types of Hedges | 第42-43页 |
| 5.2 Pragmatic Analysis of Hedges in CDNC and EDNC Based on Adaptation Theory | 第43-55页 |
| 5.2.1 Hedges as Adaptation to Linguistic Choices Making | 第43-44页 |
| 5.2.2 Hedges as Adaptation to Three properties of Language | 第44-46页 |
| 5.2.3 Hedges as Adaptation to Physical World | 第46-49页 |
| 5.2.4 Hedges as Adaptation to Social World | 第49-52页 |
| 5.2.5 Hedges as Adaptation to Mental World | 第52-55页 |
| 5.3 The Similarities and Differences of Pragmatic Functions of Hedges in CDNC and EDNC | 第55-60页 |
| 5.3.1 Similarities | 第55-58页 |
| 5.3.2 Differences | 第58-60页 |
| 5.4 Summary | 第60-62页 |
| Chapter Six Conclusion | 第62-65页 |
| 6.1 Major Findings of the Present Study | 第62-63页 |
| 6.2 Limitations of the Present Study | 第63页 |
| 6.3 Suggestions for Further Researches about Disaster News | 第63-65页 |
| References | 第65-69页 |
| AppendixⅠ The Specific Information about English Disaster News | 第69-71页 |
| AppendixⅡ The Specific Information about Chinese Disaster News | 第71-73页 |
| Appendix Ⅲ Two Samples of the Using Condition of Hedges in English Disaster News | 第73-77页 |
| Appendix Ⅳ Two Samples of the Using Condition of Hedges in Chinese Disaster News | 第77-80页 |
| Acknowledgements | 第80页 |
