| Acknowledgements | 第4-5页 |
| 摘要 | 第5-7页 |
| Abstract | 第7-9页 |
| List of Abbreviations | 第12-13页 |
| Chapter One Introduction | 第13-17页 |
| 1.1 Research Motivation | 第13-14页 |
| 1.2 Research Objectives | 第14页 |
| 1.3 Research Significance | 第14-15页 |
| 1.4 Organization of the Thesis | 第15-17页 |
| Chapter Two Literature Review | 第17-29页 |
| 2.1 An Overview of the Studies on Theme Theory | 第17-20页 |
| 2.1.1 Studies on Theme | 第17-18页 |
| 2.1.2 Classification of the Theme | 第18-20页 |
| 2.2 An Overview of the Studies on Thematic Progression | 第20-26页 |
| 2.2.1 Studies on Thematic Progression Abroad | 第21-23页 |
| 2.2.2 Studies on Thematic Progression at Home | 第23-26页 |
| 2.3 An Overview of the Studies of RWGs and SUAs | 第26-27页 |
| 2.3.1 Studies on RWGs | 第26-27页 |
| 2.3.2 Studies on SUAs | 第27页 |
| 2.3.3 Contrastive Studies on RWGs and SUAs | 第27页 |
| 2.4 Evaluations on Previous Studies | 第27-28页 |
| 2.5 Summary | 第28-29页 |
| Chapter Three Research Design | 第29-35页 |
| 3.1 Research Questions | 第29页 |
| 3.2 Data Collection | 第29页 |
| 3.3 TP Patterns Adopted in This Research | 第29-33页 |
| 3.4 Research Procedure | 第33-34页 |
| 3.5 Summary | 第34-35页 |
| Chapter Four Data Analysis and Discussion | 第35-55页 |
| 4.1 Distribution of TP Patterns in Chinese and American Government Reports | 第35-45页 |
| 4.1.1 Distribution of TP Patterns in Chinese Government Reports | 第35-39页 |
| 4.1.2 Distribution of TP Patterns in American Government Reports | 第39-44页 |
| 4.1.3 Distribution of TP Patterns in RWGs and SUAs | 第44-45页 |
| 4.2 Similarities and Differences of TP Patterns in RWGs and SUAs | 第45-48页 |
| 4.2.1 Similarities of TP Patterns in RWGs and SUAs | 第46-47页 |
| 4.2.2 Differences of TP Patterns in RWGs and SUAs | 第47-48页 |
| 4.3 Discussions on the Causes for Similarities and Differences | 第48-53页 |
| 4.3.1 The Effect of the Same Genre | 第48-49页 |
| 4.3.2 Cultural Diversity | 第49-51页 |
| 4.3.3 Language Features | 第51-53页 |
| 4.4 Summary | 第53-55页 |
| Chapter Five Conclusion | 第55-61页 |
| 5.1 Summary of the Major Findings | 第55-57页 |
| 5.2 Implications of the Research | 第57-59页 |
| 5.2.1 Theoretical Implication | 第57页 |
| 5.2.2 Practical Implication | 第57-59页 |
| 5.3 Limitations and Suggestions for Further Research | 第59-60页 |
| 5.4 Summary | 第60-61页 |
| Bibliography | 第61-64页 |
