| Abstract | 第3-4页 |
| 摘要 | 第5-6页 |
| Acknowledgement | 第6-9页 |
| Chapter One Introduction | 第9-13页 |
| 1.1 About hedges | 第9页 |
| 1.2 Motivation of the study | 第9-10页 |
| 1.3 Research questions | 第10-11页 |
| 1.4 Methodology | 第11页 |
| 1.5 Structural arrangement of the paper | 第11-13页 |
| Chapter two Literature Review | 第13-22页 |
| 2.1 Definition of Hedges | 第13-16页 |
| 2.2 Category of Hedges | 第16-19页 |
| 2.3 Functions of the hedges | 第19-20页 |
| 2.4 Application of the hedges | 第20-21页 |
| 2.5 Summary and comment | 第21-22页 |
| Chapter Three Theoretical Basis | 第22-29页 |
| 3.1 Theoretical framework of the interpersonal meaning | 第22-25页 |
| 3.2 Model of bidirectional Optimality theory | 第25-29页 |
| Chapter Four Restrictive factors of hedges from interpersonal meaning perspective | 第29-49页 |
| 4.1 Analysis of the hedges in contexts | 第29-39页 |
| 4.2 Summary of the interpersonal meaning of the hedges | 第39-40页 |
| 4.3 Tentative exploration of restrictive factors of hedges | 第40-47页 |
| 4.4 Summary of the restrictive factors of hedges | 第47-49页 |
| Chapter Five Restrictive factors of hedges in OT model | 第49-54页 |
| 5.1 Hedges in bidirectional OT model | 第49-50页 |
| 5.2 Restrictive factors of hedges and constraint conditions in OT | 第50-51页 |
| 5.3 Ranking of the restrictive factors | 第51-53页 |
| 5.4 Summary | 第53-54页 |
| Chapter Six Application of the restrictive factors of hedges | 第54-65页 |
| 6.1 Hedges in the discourse between doctors and patients | 第54-55页 |
| 6.2 Hedges in the thesis writing | 第55-58页 |
| 6.3 Hedges in advertisement | 第58-60页 |
| 6.4 Hedges in comprehension in English test | 第60-65页 |
| Chapter Seven Conclusion | 第65-69页 |
| 7.1 Findings | 第65-67页 |
| 7.2 Implication of the study | 第67页 |
| 7.3 Limitations and suggestions | 第67-69页 |
| References | 第69-73页 |
| 科研成果 | 第73-74页 |
| Postscript | 第74页 |
