| Abstract in Chinese | 第3-4页 |
| Abstract in English | 第4-5页 |
| Abbreviations | 第10-11页 |
| Chapter 1 Introduction | 第11-15页 |
| 1.1 Research Background | 第11-12页 |
| 1.2 Purpose and Significance of the Research | 第12-14页 |
| 1.2.1 Purpose of the Research | 第12-13页 |
| 1.2.2 Significance of the Research | 第13-14页 |
| 1.3 Organization of the Research | 第14-15页 |
| Chapter 2 Literature Review | 第15-30页 |
| 2.1 Appraisal Theory | 第15-24页 |
| 2.1.1 Introduction of Appraisal Theory | 第15-19页 |
| 2.1.2 Development Background of Appraisal Theory | 第19-20页 |
| 2.1.3 Previous Research on Appraisal Theory | 第20-24页 |
| 2.2 Positive Discourse Analysis | 第24-25页 |
| 2.3 Public Speaking | 第25-30页 |
| 2.3.1 Previous Research of Public Speaking Abroad | 第26-27页 |
| 2.3.2 Previous Research of Public Speaking in China | 第27-30页 |
| Chapter 3 Methodology | 第30-33页 |
| 3.1 Research Questions | 第30页 |
| 3.2 Research Methods | 第30-31页 |
| 3.3 Research Procedures | 第31-33页 |
| Chapter 4 Results and Discussion | 第33-66页 |
| 4.1 PDA of Ma Yun’s English Speech | 第33-60页 |
| 4.1.1 Attitude Analysis of the Speech | 第34-49页 |
| 4.1.2 Engagement Analysis of the Speech | 第49-57页 |
| 4.1.3 Graduation Analysis of the Speech | 第57-60页 |
| 4.2 Positive Significance Transmitted via Ma Yun’s English Speech | 第60-66页 |
| 4.2.1 Positive Significance with Respect of Personal Success | 第60-61页 |
| 4.2.2 Positive Significance with Respect of Social Progress | 第61-63页 |
| 4.2.3 Positive Significance with Respect of National Development | 第63-64页 |
| 4.2.4 Positive Significance with Respect of World Cooperation | 第64-66页 |
| Chapter 5 Conclusion | 第66-70页 |
| 5.1 Major Findings of the Research | 第66-68页 |
| 5.2 Limitations of the Research | 第68页 |
| 5.3 Suggestions for Further Research | 第68-70页 |
| References | 第70-75页 |
| Appendix：Ma Yun’s Speech on June 21st, 2017 in Detroit | 第75-91页 |
| Publication | 第91-92页 |
| Acknowledgements | 第92-93页 |
