| Abstract | 第1-10页 |
| 摘要 | 第10-12页 |
| Chapter One: Introduction | 第12-15页 |
| ·Background of the Research | 第12-13页 |
| ·Significance of the Study | 第13页 |
| ·Organization of the Thesis | 第13-15页 |
| Chapter Two: Literature Review | 第15-30页 |
| ·Definition of Hedges | 第15-16页 |
| ·Classification of Hedges | 第16-22页 |
| ·Classification Based on Grammatical Means | 第16-18页 |
| ·Categorization Based on Semantic Means | 第18-19页 |
| ·Categorization Based on Pragmatic Means | 第19-21页 |
| ·The Classification Adopted in this Study | 第21-22页 |
| ·Studies Abroad of Hedges | 第22-27页 |
| ·Zadeh’s Study on Hedges | 第22-23页 |
| ·Lakoff’s Study on Hedges | 第23-25页 |
| ·Post-Lakoff’s Study on Hedges | 第25-27页 |
| ·Domestic Studies of Hedges | 第27-30页 |
| Chapter Three: Theoretical Bases of Hedges | 第30-34页 |
| ·Vague Language | 第30-31页 |
| ·Speech Acts | 第31-32页 |
| ·Politeness and Interaction | 第32-34页 |
| Chapter Four: Methodology | 第34-38页 |
| ·Source material Description | 第34-37页 |
| ·The Study Object | 第34-35页 |
| ·Range of Choosing Samples | 第35页 |
| ·Methods of Choosing Samples | 第35-36页 |
| ·Credibility and Typicality of the Samples and the Methodology | 第36-37页 |
| ·Procession Description | 第37-38页 |
| Chapter Five: Comparison and Discussions | 第38-117页 |
| ·Data Analysis of the Lenovo Cup | 第38-75页 |
| ·Hedges in Context of Prepared Speeches | 第38-56页 |
| ·Hedges in Context of Impromptu Speech | 第56-65页 |
| ·Hedges in Context of Question-Answering | 第65-75页 |
| ·Discussion of Lenovo Cup Speeches | 第75-99页 |
| ·Comparison of Lexical and Non-lexical Hedges on a Whole | 第75-78页 |
| ·Lateral Comparison of the Four Main Kinds in the Lexical Hedges | 第78-82页 |
| ·A Deep Look into the Usage of Different Types of Hedges | 第82-99页 |
| ·Comparison and Contrast with the CCTV and Fltrp Cup Speeches | 第99-117页 |
| ·Data of 2008 CCTV Cup | 第99-104页 |
| ·Data of Fltrp Cup | 第104-110页 |
| ·Similarity and Differences Compared with the Lenovo Cup | 第110-117页 |
| Chapter Six: Conclusion | 第117-123页 |
| ·Findings of the study | 第117-120页 |
| ·Implications | 第120-121页 |
| ·Limitations and Suggestions for Further Studies | 第121-123页 |
| Bibliography | 第123-127页 |
| Acknowledgements | 第127-128页 |
| Published Papers | 第128页 |
