| ABSTRACT | 第1-3页 |
| 摘要 | 第3-7页 |
| Chapter One Introduction | 第7-11页 |
| ·Background of the Study | 第7-8页 |
| ·Purpose of the Study | 第8-9页 |
| ·Research Questions | 第9页 |
| ·Overall Structure of the Thesis | 第9-11页 |
| Chapter Two Literature Review | 第11-16页 |
| ·Previous Studies on Discourse Markers | 第11-12页 |
| ·Previous Studies Abroad | 第11-12页 |
| ·Previous Studies at Home | 第12页 |
| ·Previous Studies on Historical Discourse | 第12-13页 |
| ·Previous Studies on Textual Function | 第13-16页 |
| Chapter ThreeTheoretical Basis and Methodology | 第16-27页 |
| ·Textual Function in Systemic-Functional Grammar | 第16-20页 |
| ·Textual Function Represented by Thematic Structure | 第17-20页 |
| ·Textual Functions Represented by Cohesion | 第20页 |
| ·Definition and Classification of Time Markers | 第20-23页 |
| ·Data Collection | 第23-25页 |
| ·Instruments for the Study | 第25-27页 |
| Chapter Four Results and Discussion | 第27-42页 |
| ·Functions of Time Markers from Perspective of Thematic Structures | 第27-37页 |
| ·Functions of Topic-initiating and Changing | 第27-30页 |
| ·Functions of Topic-closing and Concluding | 第30-31页 |
| ·Functions of Framing | 第31-32页 |
| ·Functions of Topic Maintaining | 第32-34页 |
| ·Function of Evidence-showing | 第34-37页 |
| ·Functions of Time Markers from the Perspective of Cohesion | 第37-42页 |
| ·Function of Enhancing | 第37-39页 |
| ·Functions of Context-cohering | 第39-42页 |
| Chapter Five Conclusion | 第42-45页 |
| ·Major Findings | 第42-43页 |
| ·Limitation of the Study | 第43页 |
| ·Suggestions for Further Researches | 第43-45页 |
| Bibliography | 第45-47页 |
| Acknowledgements | 第47-49页 |
