| 摘要 | 第4-5页 |
| Abstract | 第5-6页 |
| Chapter One Introduction | 第10-13页 |
| 1.1 Research Background | 第10-11页 |
| 1.2 Research Purpose and Significance | 第11页 |
| 1.3 Research Questions | 第11页 |
| 1.4 Research Methodology | 第11-12页 |
| 1.5 Structure of the Thesis | 第12-13页 |
| Chapter Two Literature Review | 第13-22页 |
| 2.1 Previous Studies of Critical Discourse Analysis | 第13-16页 |
| 2.1.1 Theoretical Origin of Critical Discourse Analysis | 第13-15页 |
| 2.1.2 Empirical Studies of Critical Discourse Analysis | 第15-16页 |
| 2.2 Previous Studies of Transitivity | 第16-19页 |
| 2.2.1 Theoretical Origin of Transitivity | 第16-17页 |
| 2.2.2 Empirical Studies of Transitivity | 第17-19页 |
| 2.3 Previous Studies on Obama’s Speeches | 第19-22页 |
| 2.3.1 Rhetorical Perspective | 第19页 |
| 2.3.2 Stylistic Perspective | 第19-20页 |
| 2.3.3 Systemic-Functional Perspective | 第20-22页 |
| Chapter Three Theoretical Framework | 第22-33页 |
| 3.1 An Overview of Meta-Functions in SFG | 第22-23页 |
| 3.2 An Introduction to Transitivity System in SFG | 第23-30页 |
| 3.2.1 Types of Transitivity Process | 第23-28页 |
| 3.2.2 Participants | 第28页 |
| 3.2.3 Circumstances | 第28-30页 |
| 3.3 The Working Scheme of the Present Study | 第30-33页 |
| Chapter Four A Critical Analysis of Transitivity System in Obama’sGeneral Debates | 第33-70页 |
| 4.1 Transitivity System in Obama’ s Debates | 第33-46页 |
| 4.1.1 Realizations of Transitivity System in Obama’ s Debates | 第33-38页 |
| 4.1.2 Distributions of Transitivity System in Obama’s Debates | 第38-46页 |
| 4.2 Power and Identity Constructed by Transitivity System | 第46-65页 |
| 4.2.1 An Analysis of Power Construction | 第47-55页 |
| 4.2.2 An Analysis of Identity Construction | 第55-65页 |
| 4.3 Ideological Meaning Reflected in the Construction of Power and Identity byMeans of Transitivity System | 第65-70页 |
| 4.3.1 Ideological Meaning Reflected in Power | 第65-66页 |
| 4.3.2 Ideological Meaning Reflected in Identity | 第66-67页 |
| 4.3.3 Ideological Meaning Reflected in the Construction of Power and Identity | 第67-70页 |
| Chapter Five Conclusion | 第70-73页 |
| 5.1 Research Findings | 第70-71页 |
| 5.2 Research Implications | 第71-72页 |
| 5.3 Limitations and Suggestions | 第72-73页 |
| Bibliography | 第73-76页 |
| Acknowledgements | 第76-77页 |
| 个人简历 | 第77页 |
