| Acknowledgements | 第1-7页 |
| 中文摘要 | 第7-8页 |
| Abstract | 第8-11页 |
| Chapter One Introduction | 第11-14页 |
| ·Background of the Research | 第11页 |
| ·Area Anticipated | 第11-12页 |
| ·Structure of the Thesis | 第12-14页 |
| Chapter Two Progressive Aspect and Situation Aspect | 第14-28页 |
| ·Aspect | 第14-19页 |
| ·Definition of Aspect | 第14-15页 |
| ·Subcategories of Aspect | 第15-17页 |
| ·Definition of Progressive Aspect | 第17-19页 |
| ·Situation Aspect | 第19-25页 |
| ·Verb Classifications and Its properties | 第19-22页 |
| ·Different Types of Situations | 第22-25页 |
| ·Relations between Situation Aspect and Progressive Aspect | 第25-28页 |
| ·Relations of Compatibility | 第25-26页 |
| ·Relations of Incompatibility | 第26-28页 |
| Chapter Three Theoretical Framework | 第28-35页 |
| ·Subjectivity within Cognitive Grammar | 第28-30页 |
| ·Subjectivisation in Grammaticalization | 第30-31页 |
| ·Realization of Discourse Subjectivity | 第31-35页 |
| Chapter Four Subjectivity in Speaker’s Perspective | 第35-46页 |
| ·Perspective on Aspectual Choices | 第35-37页 |
| ·Perspective on Alteration of Situation Type | 第37-46页 |
| ·Progressive’s Function of Dynamizing a Static Situation | 第38-41页 |
| ·Progressive’s Function of Extending a Punctual Situation | 第41-43页 |
| ·Progressive’s Function of Deboundarizing a Telic Situation | 第43-46页 |
| Chapter Five Subjectivity in Speaker’s Affect | 第46-52页 |
| ·Progressive’s Function of Tentativeness and Politeness | 第46-49页 |
| ·Progressive’s Function of Emphasis | 第49-52页 |
| Chapter Six Subjectivity in Speaker’s Epistemic Modality | 第52-57页 |
| ·The Historical Line of the Progressive Form be going to | 第52-53页 |
| ·The View of Cognition | 第53-54页 |
| ·The View of Grammaticalization | 第54-57页 |
| Chapter Seven Conclusions | 第57-60页 |
| Bibliography | 第60-63页 |
