| Abstract | 第1-6页 |
| 摘要 | 第6-10页 |
| Introduction | 第10-14页 |
| Chapter 1 The Study of Vague Language | 第14-25页 |
| ·The Definition of Vague Language | 第14-15页 |
| ·The Core of Vague Language---Hedge | 第15-16页 |
| ·Factors Causing Vague Language | 第16-18页 |
| ·Psychological Factors | 第16-17页 |
| ·Internal Factors of Language | 第17-18页 |
| ·The Relevant Study | 第18-22页 |
| ·Pragmatic Vagueness | 第22-25页 |
| Chapter 2 Theoretical Framework | 第25-40页 |
| ·Adaptation Theory | 第25-26页 |
| ·Critical Discourse Analysis | 第26-28页 |
| ·The Relevant Study of Adaptation Theory | 第28-31页 |
| ·The Relevant Study of Critical Discourse Analysis | 第31-40页 |
| ·The Concepts of Language, Power and Ideology within CDA | 第34-37页 |
| ·Modality | 第37-40页 |
| Chapter 3 Vague Language in English News | 第40-52页 |
| ·Vague Language within Adaptation Theory | 第40-42页 |
| ·Performance as a Process of Making Choices | 第40-41页 |
| ·Performance as Realization of Adaptation | 第41-42页 |
| ·Reasons for Applying Vagueness in English News | 第42-47页 |
| ·Adaptation to Mental World by Using Vague Language | 第44-45页 |
| ·Adapting to the Readers' and Journalists' Acceptance | 第45-46页 |
| ·Adapting to Human's Limited Ability to Know the Outside | 第46-47页 |
| ·Vagueness within Critical Discourse Analysis in English News | 第47-50页 |
| ·The Study on News Discourse | 第50-52页 |
| Chapter 4 Pragmatic Analysis of Vagueness in English News | 第52-73页 |
| ·English News with Vague Language | 第52-64页 |
| ·Vague Language in Political News | 第52-55页 |
| ·Vague Language in Economic News | 第55-57页 |
| ·Vague Language in Social News | 第57-59页 |
| ·Vague Language in Technological News | 第59-60页 |
| ·Vague Language in Sports News | 第60-62页 |
| ·Vague Language in Entertainment News | 第62-64页 |
| ·Pragmatic Functions of Vagueness in English News | 第64-69页 |
| ·Keeping Secrets | 第64-65页 |
| ·Enhancing the Reliability and Appropriateness of News Language | 第65页 |
| ·Saving Time | 第65-66页 |
| ·Avoiding Losing Face and Hurting Others' Feelings | 第66-67页 |
| ·Achieving Politeness and Euphemism | 第67-68页 |
| ·Minimizing the Negative Effects | 第68-69页 |
| ·The Proper Use of Vague Language | 第69-73页 |
| ·Effective Ways to Apply Vague Language in English News | 第69-71页 |
| ·Disadvantages of Abusing Vague Language | 第71-73页 |
| Conclusion | 第73-76页 |
| Bibliography | 第76-80页 |
| Acknowledgements | 第80页 |
