| Abstract | 第1-5页 |
| Chinese outline | 第5-8页 |
| Chapter 1 Introduction | 第8-15页 |
| ·Motivation and problems posed for the study | 第8-10页 |
| ·Methodology and theoretical framework for the study | 第10-12页 |
| ·Aims and significance of the study | 第12-14页 |
| ·Organization of the research | 第14-15页 |
| Chapter 2 Overview of Modality | 第15-38页 |
| ·Modal logic | 第15-16页 |
| ·Modality in traditional grammar | 第16-19页 |
| ·Modality in SFL | 第19-38页 |
| ·Speech function | 第21-26页 |
| ·Modal parameters-type, value, polarity and orientation | 第26-38页 |
| Chapter 3 Modality in the Textual Level | 第38-58页 |
| ·Interpersonal meaning | 第40-43页 |
| ·Modality in the textual level | 第43-58页 |
| ·Interpretation of the diverse wordings of modality in the text | 第43-51页 |
| ·Prominent wordings of modality in the text | 第51-58页 |
| Chapter 4 Context and Modality in the Text | 第58-76页 |
| ·The deictic function of modality | 第59-61页 |
| ·Context of situation and modality in the text | 第61-67页 |
| ·Context of culture and modality in the text | 第67-72页 |
| ·Co-text and modality in the text | 第72-76页 |
| Chapter 5 Discussion | 第76-87页 |
| ·Meaning as the starting point | 第76-82页 |
| ·Realization between the multiple-strata | 第82-84页 |
| ·Text and context | 第84-87页 |
| Chapter 6 Conclusion | 第87-92页 |
| ·Conclusion | 第87-89页 |
| ·Confusion and some field that need further study | 第89-92页 |
| Bibliography | 第92-96页 |
| Appendices | 第96-99页 |
| Acknowledgements | 第99-100页 |
| 独创性声明 | 第100-101页 |
| 学位论文版权使用授权书 | 第101页 |
