| ABSTRACT | 第7-8页 |
| 摘要 | 第9-11页 |
| List of Figures | 第11-12页 |
| List of Tables | 第12-13页 |
| List of Abbreviations | 第13-14页 |
| Chapter One Introduction | 第14-17页 |
| 1.1 Background of the Present Study | 第14-15页 |
| 1.2 Objectives and Significance of the Present Study | 第15页 |
| 1.3 Organization of the Thesis | 第15-17页 |
| Chapter Two Literature Review | 第17-23页 |
| 2.1 Previous Research on Hedges | 第17-21页 |
| 2.1.1 Research on Hedges from a Semantic Perspective | 第17-18页 |
| 2.1.2 Research on Hedges from a Pragmatic Perspective | 第18-19页 |
| 2.1.3 Research on Hedges from a Textual Perspective | 第19-21页 |
| 2.2 Previous Research on the Interpersonal Meaning of Hedges | 第21-23页 |
| Chapter Three Theoretical Framework | 第23-32页 |
| 3.1 An Overview of Appraisal Theory | 第23-24页 |
| 3.2 Engagement | 第24-28页 |
| 3.2.1 Dialogic Contraction | 第25-26页 |
| 3.2.2 Dialogic Expansion | 第26-28页 |
| 3.3 Graduation | 第28-30页 |
| 3.4 Hedging in the Appraisal System | 第30-32页 |
| Chapter Four Research Methodology | 第32-35页 |
| 4.1 Research Questions | 第32页 |
| 4.2 Selection of Data | 第32-33页 |
| 4.3 Instrument | 第33-34页 |
| 4.4 Research Procedures | 第34-35页 |
| Chapter Five Results and Discussion | 第35-67页 |
| 5.1 Linguistic Forms and Frequencies of Hedges in the Data | 第35-37页 |
| 5.2 Distribution Features and Interpersonal Meaning of Hedges in Engagement | 第37-60页 |
| 5.2.1 Analysis of Hedges as Dialogic Contraction Resources | 第40-49页 |
| 5.2.1.1 Analysis of Hedges as Disclaim Resources | 第40-44页 |
| 5.2.1.2 Analysis of Hedges as Proclaim Resources | 第44-49页 |
| 5.2.2 Analysis of Hedges as Dialogic Expansion Resources | 第49-60页 |
| 5.2.2.1 Analysis of Hedges as Entertain Resources | 第50-58页 |
| 5.2.2.2 Analysis of Hedges as Attribution Resources | 第58-60页 |
| 5.3 Distribution Features and Interpersonal Meaning of Hedges in Graduation | 第60-67页 |
| 5.3.1 Analysis of Hedges as Realizations of Focus | 第60-62页 |
| 5.3.2 Analysis of Hedges as Realizations of Force | 第62-67页 |
| Chapter Six Conclusion | 第67-71页 |
| 6.1 Major Findings | 第67-69页 |
| 6.2 Implications and Limitations | 第69页 |
| 6.3 Suggestions for Further Research | 第69-71页 |
| References | 第71-75页 |
| Appendix | 第75-78页 |
| Acknowledgments | 第78-79页 |
| 学位论文评阅及答辩情况表 | 第79页 |
