| 摘要 | 第4-6页 |
| Abstract | 第6-8页 |
| Introduction | 第10-14页 |
| Chapter Ⅰ Literature Review | 第14-36页 |
| 1. Adaptation Theory | 第14-21页 |
| 2. An Overview of Hedges | 第21-26页 |
| 3. The Author’s Classification of Hedges | 第26-36页 |
| Chapter Ⅱ Hedges as A Means of Adaptation to the Physical World | 第36-50页 |
| 1. Authenticity-Driven Adaptation | 第37-40页 |
| 2. Objectivity-Oriented Adaptation | 第40-43页 |
| 3. Timeliness-Required Adaptation | 第43-47页 |
| 4. Features of Hedges as Adaptation to the Physical World | 第47-50页 |
| Chapter Ⅲ Hedges as A Means of Adaptation to the Mental World | 第50-68页 |
| 1. Adaptation to Journalists’ Mental World | 第50-56页 |
| 2. Adaptation to Readers’ Mental World | 第56-66页 |
| 3. Features of Hedges as Adaptation to the Mental World | 第66-68页 |
| Chapter Ⅳ Hedges as A Means of Adaptation to the Social World | 第68-81页 |
| 1. Adaptation to Different Cultures | 第68-72页 |
| 2. Adaptation to Social Relations | 第72-78页 |
| 3. Features of Hedges as Adaptation to the Social World | 第78-81页 |
| Conclusion | 第81-85页 |
| Bibliography | 第85-87页 |
| Acknowledgements | 第87-88页 |
| 攻读学位期间发表论文以及参加科研情况 | 第88-89页 |
