| 摘要 | 第1-6页 |
| Abstract | 第6-11页 |
| Chapter 1 Introduction | 第11-16页 |
| ·Significance of This Research | 第11-12页 |
| ·Methodology and Data Collection | 第12-14页 |
| ·Motivation of the Study | 第12-13页 |
| ·Data Collection | 第13-14页 |
| ·Data Processing | 第14页 |
| ·Organization of the Thesis | 第14-16页 |
| Chapter 2 Literature Review | 第16-26页 |
| ·Understanding the Concept of Hedges and Hedging | 第16-21页 |
| ·Lakoff’s Study on Hedges as A Starting Point | 第16-18页 |
| ·The Development of the Concept of Hedges from Semantics to Pragmatics | 第18-21页 |
| ·Classifications of Hedges | 第21-26页 |
| ·Wu Tieping’s Grammatical Categorization | 第21页 |
| ·Semantic Categorizations | 第21-23页 |
| ·A Pragmatic Categorization | 第23-24页 |
| ·The Classification of Hedging in Present Study | 第24-26页 |
| Chapter 3 Application of Hedging in English Abstracts of Academic Papers | 第26-30页 |
| ·Hedging in Academic Writing | 第26-28页 |
| ·Social Features of Knowledge and Academic Writing | 第26-27页 |
| ·Hedging Claims in Academic Papers | 第27-28页 |
| ·Definition and Features of an Abstract | 第28-30页 |
| Chapter 4 the Realization of Hedging in English Abstracts | 第30-53页 |
| ·Lexical Hedges | 第30-48页 |
| ·Modal Auxiliaries | 第31-35页 |
| ·Epistemic Verbs | 第35-42页 |
| ·Epistemic Judgmental Verbs | 第37-39页 |
| ·Epistemic Evidential Verbs | 第39-42页 |
| ·Epistemic Adjectives | 第42-44页 |
| ·Epistemic Adverbs | 第44-46页 |
| ·Epistemic Nouns | 第46-48页 |
| ·Non-lexical Hedges | 第48-53页 |
| ·If-clause | 第49-50页 |
| ·Passive Voice | 第50-51页 |
| ·The First Person Pronouns | 第51-53页 |
| Chapter 5 A Pragmatic Analysis of Hedging in English Abstracts of Academic Papers | 第53-64页 |
| ·Hedging and Cooperative Principle | 第53-57页 |
| ·Pragmatic Functions of Hedging in Abstracts | 第57-64页 |
| ·Communicative Textual Function of hedging in Abstracts of Academic Papers | 第58-60页 |
| ·Communicative Interpersonal Function of Hedging in Abstracts of Academic Papers | 第60-64页 |
| ·A Face-threatening Act and Politeness Strategies | 第61-62页 |
| ·Hedging as Positive and Negative Strategies | 第62-64页 |
| Chapter 6 Conclusion | 第64-67页 |
| ·Summary | 第64-65页 |
| ·Implications on Pedagogical Teaching | 第65-66页 |
| ·Limitations and Suggestions for Further Studies | 第66-67页 |
| Appendix | 第67-71页 |
| References | 第71-74页 |
| Acknowledgements | 第74-75页 |
| 攻读硕士期间发表论文情况 | 第75页 |
