| 内容提要 | 第4-5页 |
| Synopsis | 第5-6页 |
| 摘要 | 第7-12页 |
| Abstract | 第12-20页 |
| Introduction | 第20-23页 |
| Chapter 1 Literature Review | 第23-33页 |
| 1.1 US Presidential Television Debates | 第23-29页 |
| 1.1.1 Development of US Presidential Television Debates | 第23-25页 |
| 1.1.2 Features of US Presidential Television Debates | 第25-26页 |
| 1.1.3 Studies of US Presidential Television Debates | 第26-29页 |
| 1.2 Application of DHA both at Home and Abroad | 第29-33页 |
| Chapter 2 Theoretical Framework and Methodology | 第33-44页 |
| 2.1 RuthWodak’s Discourse-HistoricalApproach (DHA) | 第33-39页 |
| 2.1.1 Referential Strategy | 第35-36页 |
| 2.1.2 Strategy of Argumentation | 第36-38页 |
| 2.1.3 Strategy of Predication | 第38页 |
| 2.1.4 Strategy of Intensification/Mitigation | 第38-39页 |
| 2.2 Methodology | 第39-44页 |
| 2.2.1 Data Collection and Sample Selection | 第39-40页 |
| 2.2.2 Pragmatic Presupposition | 第40-42页 |
| 2.2.3 Research Questions | 第42-44页 |
| Chapter 3 Data Analysis and Discussion | 第44-70页 |
| 3.1 Analysis of the Television Debates between Obama and Romney | 第44-63页 |
| 3.1.1 An Analysis of Their First Television Debate | 第44-50页 |
| 3.1.2 An Analysis of Their Second Television Debate | 第50-58页 |
| 3.1.3 An Analysis of Their Third Television Debate | 第58-63页 |
| 3.2 Discussion | 第63-70页 |
| 3.2.1 Differences in Their Uses of Strategies in Three Debates | 第63-66页 |
| 3.2.2 Causes for These Differences | 第66-67页 |
| 3.2.3 Implications of the Strategies | 第67-70页 |
| Conclusion | 第70-74页 |
| References | 第74-77页 |
| Acknowledgements | 第77-78页 |
| 作者简介 | 第78页 |
