| 摘要 | 第1-5页 |
| Abstract | 第5-8页 |
| Chapter One:Introduction | 第8-13页 |
| ·Fuzziness and hedges | 第8-9页 |
| ·Definition and classification of hedges | 第9-12页 |
| ·Methodology and data resource | 第12页 |
| ·Organization of the thesis | 第12-13页 |
| Chapter Two:Literature Review | 第13-23页 |
| ·L.A.Zadeh's research | 第13-14页 |
| ·G.Lakoff's research | 第14-17页 |
| ·The research of hedges after Lakoff's | 第17-20页 |
| ·The research of hedges at home | 第20-23页 |
| Chapter Three:Hedges in Business Letter | 第23-34页 |
| ·Characteristics of business letter | 第23-25页 |
| ·Hedges in business letter | 第25-28页 |
| ·Approximator hedges in business letters | 第25-27页 |
| ·Adaptor hedges in business letters | 第25-26页 |
| ·Rounder hedges in business letters | 第26-27页 |
| ·Shield hedges in business letters | 第27-28页 |
| ·Plausibility Shields in business letters | 第27页 |
| ·Attribution Shields in business letters | 第27-28页 |
| ·The reason of using hedges in business letter | 第28-34页 |
| ·Avoiding specific information | 第28-29页 |
| ·Avoiding absolutization | 第29-30页 |
| ·Being objective | 第30-31页 |
| ·Being polite | 第31-32页 |
| ·Being brief | 第32-34页 |
| Chapter Four:Pragmatic Analysis of Hedges in Business Letters | 第34-47页 |
| ·Co-operative Principle and hedges | 第34-38页 |
| ·Co-operative Principle | 第34-36页 |
| ·Study of hedges within the framework of the Co-operative Principle | 第36-38页 |
| ·Quality hedges | 第36-37页 |
| ·Quantity hedges | 第37页 |
| ·Relevance hedges | 第37-38页 |
| ·Manner hedges | 第38页 |
| ·Politeness Principle and hedges | 第38-47页 |
| ·Politeness Principle | 第39-40页 |
| ·Study of hedges within the framework of Politeness Principle | 第40-47页 |
| ·Tact hedges | 第40-41页 |
| ·Generosity hedges | 第41-42页 |
| ·Approbation hedges | 第42-43页 |
| ·Modesty hedges | 第43-44页 |
| ·Agreement hedges | 第44-45页 |
| ·Sympathy hedges | 第45-47页 |
| Chapter Five Conclusion | 第47-49页 |
| Bibliography | 第49-51页 |
| Acknowledgements | 第51页 |
