| Acknowledgement | 第1-5页 |
| Abstract | 第5-8页 |
| 摘要 | 第8-13页 |
| Chapter OneIntroduction | 第13-19页 |
| ·Rationale of the study | 第13-16页 |
| ·The importance of legal discourse | 第13-14页 |
| ·A need for study of legislative discourse | 第14-15页 |
| ·An urgent need for analysis of the UNCAC from a linguistic perspective | 第15-16页 |
| ·Purpose of the study | 第16-17页 |
| ·Research methodology and data collection | 第17页 |
| ·Organization of the thesis | 第17-19页 |
| Chapter Two Literature Review | 第19-25页 |
| ·Introduction | 第19页 |
| ·A review of research on modality | 第19-21页 |
| ·Research on modality at home | 第20页 |
| ·Research on modality abroad | 第20-21页 |
| ·A systemic functional approach to legislative discourse analysis | 第21-23页 |
| ·The framework of SFG | 第21-22页 |
| ·A brief review on legal discourse analysis | 第22-23页 |
| ·An analysis of legislative discourse under SFG | 第23页 |
| ·Summary | 第23-25页 |
| Chapter Three An Analysis of the Modality System in the UNCAC - A Systemic Functional Approach | 第25-40页 |
| ·Introduction | 第25页 |
| ·Halliday’s theories of modality | 第25-30页 |
| ·Classification of modality | 第25-26页 |
| ·Orientation and value | 第26-27页 |
| ·Modal expressions | 第27-30页 |
| ·Finite modal operators | 第27-28页 |
| ·Modal adjuncts | 第28页 |
| ·Metaphors of modality | 第28-29页 |
| ·Other modal expressions | 第29-30页 |
| ·General description of nature of the UNCAC | 第30-31页 |
| ·Modality system in the UNCAC | 第31-39页 |
| ·Modal expressions in the Convention | 第32-37页 |
| ·Modal operators | 第33-37页 |
| ·Expansion of the predicator | 第37页 |
| ·Features of modal expressions in the Convention | 第37-39页 |
| ·Summary | 第39-40页 |
| Chapter Four Interpersonal Meaning Revealed by the Modality System in the UNCAC | 第40-54页 |
| ·Introduction | 第40页 |
| ·Halliday’s model of interpersonal meaning | 第40-41页 |
| ·Interpersonal meaning of the UNCAC revealed by its modality system | 第41-53页 |
| ·Context of the Convention under Halliday’s context theory | 第42-43页 |
| ·The modal meaning of each modal operator in the Convention | 第43-48页 |
| ·Shall | 第43-45页 |
| ·May | 第45页 |
| ·Can, must, should, would, could, might, will | 第45-48页 |
| ·Classification of modalization and modulation in the Convention | 第48-49页 |
| ·Orientation of the modality system in the Convention | 第49-51页 |
| ·Value of the modality system in the Convention | 第51-53页 |
| ·Summary | 第53-54页 |
| Chapter Five Modality and Ideology in the UNCAC | 第54-67页 |
| ·Introduction | 第54页 |
| ·The definition of ideology | 第54-55页 |
| ·Ideology in the Convention | 第55-60页 |
| ·Modal responsibility | 第56-58页 |
| ·Source of the modality in the Convention | 第58-59页 |
| ·Context of the Convention | 第59-60页 |
| ·Conclusion of the present section | 第60页 |
| ·The relationship between ideology and modality in the Convention | 第60-66页 |
| ·Ideology determines the selection of modality in the Convention | 第61-64页 |
| ·Modality reflects the ideology in the Convention | 第64-66页 |
| ·Summary | 第66-67页 |
| Chapter Six Conclusion | 第67-71页 |
| ·Major conclusions of the present study | 第67-68页 |
| ·Contributions of the present study | 第68-69页 |
| ·Limitations of the current research and recommendations for further study.. | 第69-71页 |
| Bibliography | 第71-74页 |
