| 摘要 | 第4-5页 |
| Abstract | 第5页 |
| Chapter One Introduction | 第10-15页 |
| 1.1 Background of the Research | 第10-12页 |
| 1.2 Purpose and Significance of the Research | 第12-13页 |
| 1.3 Organization of the Thesis | 第13-15页 |
| Chapter Two Literature Review | 第15-27页 |
| 2.1 Definition of political discourses | 第15-16页 |
| 2.2 Previous Studies on political discourses Analysis Abroad | 第16-21页 |
| 2.2.1 The Perspective of Rhetoric | 第17-19页 |
| 2.2.2 The Perspective of Critical Discourse Analysis | 第19-20页 |
| 2.2.3 The Perspective of Cognitive Linguistics | 第20-21页 |
| 2.3 Previous Studies on political discourses Analysis at Home | 第21-27页 |
| 2.3.1 The Perspective of Rhetoric | 第21-22页 |
| 2.3.2 The Perspective of Critical Discourse Analysis | 第22-24页 |
| 2.3.3 The Perspective of Cognitive Linguistics | 第24-27页 |
| Chapter Three Theoretical Framework | 第27-33页 |
| 3.1 Conceptual Metaphor Theory | 第27-29页 |
| 3.2 Lakoff's Framing Theory | 第29-33页 |
| Chapter Four Research Design | 第33-35页 |
| 4.1 Research Questions | 第33页 |
| 4.2 Research Methodology and Data Collection | 第33-35页 |
| 4.2.1 Research Methodology | 第33-34页 |
| 4.2.2 Data Collection | 第34-35页 |
| Chapter Five An Analysis of Frames in Bush's and Obama's Speeches on ImmigrationIssue | 第35-55页 |
| 5.1 An Analysis of Frames in Bush's and Obama's Speeches on Immigration Issue | 第35-50页 |
| 5.1.1 Frames in Bush's Speeches on Immigration Issue | 第35-42页 |
| 5.1.1.1 Criminal Frame | 第35-38页 |
| 5.1.1.2 Security Frame | 第38-40页 |
| 5.1.1.3 Deceitful Worker Frame | 第40-42页 |
| 5.1.2 Frames in Obama's Speeches on Immigration Issue | 第42-50页 |
| 5.1.2.1 Driving-force Frame | 第43-45页 |
| 5.1.2.2 Unscrupulous Employer Frame | 第45-47页 |
| 5.1.2.3 American Dream Frame | 第47-50页 |
| 5.2 A Contrastive Analysis of Frames in Bush's and Obama's Speeches on Immigration Issue | 第50-54页 |
| 5.2.1 Similarities of Frames between Bush's and Obama's Speeches on Immigration Issue | 第50-52页 |
| 5.2.2 Differences of Frames between Bush's and Obama's Speeches on Immigration Issue | 第52-54页 |
| 5.3 Summary | 第54-55页 |
| Chapter Six Conclusion | 第55-58页 |
| 6.1 Major Findings | 第55-57页 |
| 6.2 Limitations and Suggestions for Further Studies | 第57-58页 |
| Bibliography | 第58-61页 |
| Acknowledgements | 第61页 |
