| Abstract | 第1-9页 |
| 中文摘要 | 第9-11页 |
| Introduction | 第11-15页 |
| Chapter One Literature Review | 第15-24页 |
| ·Researches on Hedges Abroad | 第15-21页 |
| ·L. A. Zadeh’s Study of Hedges | 第15-16页 |
| ·G. Lakoff’s Study of Hedges | 第16-19页 |
| ·The Others’Studies of Hedges | 第19-21页 |
| ·Researches on Hedges in China | 第21-24页 |
| ·Wu Tieping’s Study of Hedges | 第21-22页 |
| ·The Others’Studies of Hedges | 第22-24页 |
| Chapter Two Theoretical Framework | 第24-35页 |
| ·Hedges | 第24-28页 |
| ·Hedges and Fuzziness | 第24-25页 |
| ·Classifications of Hedges | 第25-26页 |
| ·Features of Hedges | 第26-28页 |
| ·Cooperative Principle and Conversational Implicature | 第28-30页 |
| ·Cooperative Principle | 第28-29页 |
| ·Conversational Implicature | 第29-30页 |
| ·The Characteristics of American Journalistic English | 第30-32页 |
| ·Characteristics on Lexical Aspect | 第31-32页 |
| ·Characteristics on Syntactical Aspect | 第32页 |
| ·Hedges, Journalistic English and Pragmatics | 第32-35页 |
| Chapter Three Methodology | 第35-41页 |
| ·Research Questions | 第35页 |
| ·Data Selected | 第35-37页 |
| ·Research Procedure | 第37页 |
| ·Results | 第37-41页 |
| ·Hedging Devices Employed in the Selected American Journalistic English | 第37-39页 |
| ·Frequency of Hedging Devices in the Selected American Journalistic English | 第39-41页 |
| Chapter Four Analysis of Hedges in American Journalistic English from a Pragmatic Dimension | 第41-61页 |
| ·Hedges as Devices Employed in the Selected American Journalistic English | 第41-49页 |
| ·Analysis of the Different Frequency of Hedging Devices | 第49-51页 |
| ·Hedges and Cooperative Principle and Conversational Implicature | 第51-57页 |
| ·Lexical Hedges and Cooperative Principle | 第51-53页 |
| ·Lexical Hedges and Conversational Implicature | 第53-55页 |
| ·Non-Lexical Hedges and Cooperative Principle | 第55-56页 |
| ·Non-Lexical Hedges and Conversational Implicature | 第56-57页 |
| ·Pragmatic Functions of Hedges in American Journalistic English | 第57-61页 |
| ·Pragmatic Functions of Lexical Hedges | 第57-59页 |
| ·Pragmatic Functions of Non-Lexical Hedges | 第59-61页 |
| Chapter Five Implications and Suggestions | 第61-64页 |
| ·Implications | 第61-62页 |
| ·To Improve the Abilities of Journalistic English Learning and Teaching | 第61-62页 |
| ·To Enrich the Communicative Skills | 第62页 |
| ·Suggestions | 第62-64页 |
| Conclusion | 第64-66页 |
| Bibliography | 第66-69页 |
| Appendix | 第69-86页 |
| Acknowledgements | 第86-87页 |
| 攻读学位期间发表的学术论文 | 第87页 |
