| 摘要 | 第1-5页 |
| Abstract | 第5-6页 |
| Contents | 第6-8页 |
| List of Figures | 第8-9页 |
| List of Tables | 第9-10页 |
| Chapter 1 Introduction | 第10-16页 |
| ·Rationale and Significance of the Research | 第11-13页 |
| ·Research Questions | 第13页 |
| ·Research Methodology | 第13-14页 |
| ·Organization of the Present Research | 第14-16页 |
| Chapter 2 Literature Review | 第16-23页 |
| ·Research on the Translation of Business Letters | 第16-19页 |
| ·Research from the Perspective of Linguistics | 第17-18页 |
| ·Research from the Perspective of Translation Techniques | 第18-19页 |
| ·Summary | 第19页 |
| ·Research on the Translation of Modality | 第19-21页 |
| ·Summary | 第21-23页 |
| Chapter 3 Theoretical Framework | 第23-40页 |
| ·Interpersonal Meta-function of Modality | 第24-30页 |
| ·Modal Types | 第25-26页 |
| ·Modal Value | 第26-28页 |
| ·Modal Orientation | 第28-30页 |
| ·Modality Realized by Lexical Choice | 第30-32页 |
| ·Modality realized by Mood system | 第32-36页 |
| ·Modality through the Choice of Personal Pronouns | 第33-35页 |
| ·Modality through the Choice of Tense | 第35-36页 |
| ·Modality Realized by Discourse | 第36-38页 |
| ·Conveyance of Modality in the Translation | 第38-40页 |
| Chapter 4 Application of Interpersonal Meta-function to the Conveyance of Modality | 第40-61页 |
| ·Conveyance of Modality at the Lexical Level | 第40-49页 |
| ·Through the choice of modal expressions | 第41-48页 |
| ·Summary | 第48-49页 |
| ·Conveyance of Modality at the Clausal Level | 第49-55页 |
| ·Through the Translation of Personal Pronouns | 第49-51页 |
| ·Through the Translation of Tense | 第51-54页 |
| ·Summary | 第54-55页 |
| ·Conveyance of Modality at the Discourse Level | 第55-61页 |
| ·Analysis of Sample 1 | 第56-58页 |
| ·Analysis of Sample 2 | 第58-59页 |
| ·Summary | 第59-61页 |
| Chapter 5 Conclusion | 第61-64页 |
| ·Major Findings | 第61-62页 |
| ·Limitation of the Study and Suggestions for Further Research | 第62-64页 |
| References | 第64-67页 |
| Acknowledgements | 第67页 |
