| Acknowledgements | 第1-6页 |
| 摘要 | 第6-7页 |
| Abstract | 第7-9页 |
| Contents | 第9-12页 |
| Chapter One Introduction | 第12-15页 |
| ·The Background of the Study | 第12-13页 |
| ·The Aims of the Study | 第13页 |
| ·The Layout of this Thesis | 第13-15页 |
| Chapter Two Literature Review | 第15-28页 |
| ·Influential Models of Interpersonal Function | 第15-23页 |
| ·Halliday's Model of Interpersonal Function | 第16-18页 |
| ·Other Approaches to Interpersonal Function | 第18-21页 |
| ·The application of Interpersonal Function in different discourses | 第21-23页 |
| ·Reviews on English Political Speeches | 第23-28页 |
| ·Political Speeches | 第24-25页 |
| ·A Political Picture of Joseph Biden | 第25-26页 |
| ·Previous Studies on Political Speeches | 第26-28页 |
| Chapter Three Methodology | 第28-39页 |
| ·Data Collection and Research Method | 第28-29页 |
| ·The Process of Data Analysis | 第29-39页 |
| ·The Main Theoretical Framework for the Present Study | 第29-30页 |
| ·The Realizations of Interpersonal Function | 第30-39页 |
| ·Interpersonal Function on Mood System | 第30-34页 |
| ·Interpersonal Function on Modality System | 第34-37页 |
| ·Interpersonal Function on Personal Pronouns | 第37-39页 |
| Chapter Four Realization of Interpersonal Function in Biden's Speeches | 第39-63页 |
| ·Realization of Interpersonal Function by Mood | 第39-52页 |
| ·Three types of mood and their interpersonal function | 第39-45页 |
| ·Declaratives and their interpersonal function in Biden's Two Speeches | 第41-43页 |
| ·Imperatives and their interpersonal function in Biden's Two Speeches | 第43-45页 |
| ·Personal pronouns and their interpersonal functions | 第45-52页 |
| ·“We” and its interpersonal function | 第47-49页 |
| ·“I” and its interpersonal function | 第49-50页 |
| ·“You” and its interpersonal function | 第50-52页 |
| ·Summary | 第52页 |
| ·Realization of Interpersonal Function by Modality | 第52-63页 |
| ·The modal operator with median value and its interpersonal function | 第54-56页 |
| ·The modal operator with low value and its interpersonal function | 第56-58页 |
| ·The modal operator with high value and its interpersonal function | 第58-60页 |
| ·Modality metaphor and its interpersonal function | 第60-63页 |
| Chapter Five Conclusion | 第63-66页 |
| ·A Brief Summary of the Findings | 第63-65页 |
| ·Limitations of this Thesis and Suggestions for Further Study | 第65-66页 |
| References | 第66-68页 |
| Appendix | 第68-86页 |
| 攻读学位期间发表的论文 | 第86-87页 |
