| Abstract | 第1-6页 |
| 中文摘要 | 第6-13页 |
| Chapter One Introduction | 第13-16页 |
| ·Overview | 第13页 |
| ·Need for the study | 第13-14页 |
| ·Significance of the study | 第14-15页 |
| ·Structure of the thesis | 第15-16页 |
| Chapter Two Literature Review | 第16-34页 |
| ·Conception of discourse markers | 第16-28页 |
| ·Definition of discourse markers | 第16-20页 |
| ·Delimitation of discourse markers | 第20-23页 |
| ·Classification of discourse markers | 第23-28页 |
| ·DMs research in second language acquisition | 第28-33页 |
| ·Role of DMs in second language acquisition | 第29-30页 |
| ·Related empirical studies on acquisition of DMs | 第30-33页 |
| ·Summary | 第33-34页 |
| Chapter Three Methodology | 第34-45页 |
| ·Research questions | 第34-35页 |
| ·Material | 第35-37页 |
| ·A description of TEM-Band 8 Spoken English Test | 第35-36页 |
| ·Corpus description | 第36页 |
| ·Task 3 in TEM-Band 8 Oral Test in 2005 | 第36-37页 |
| ·Data preparation and data analysis | 第37-44页 |
| ·Data preparation | 第37-38页 |
| ·Wordsmith Tool | 第38-39页 |
| ·Identification of discourse markers | 第39-41页 |
| ·Classification of discourse markers | 第41-42页 |
| ·Statistical calculation and analysis | 第42-44页 |
| ·Summary | 第44-45页 |
| Chapter Four Results and Discussion | 第45-64页 |
| ·General characteristics of use of DMs | 第45-55页 |
| ·Frequency of DMs | 第45-46页 |
| ·The most frequently used DM: and | 第46-52页 |
| ·DMs types identified and their frequency distribution | 第52-55页 |
| ·Cross-level differences in the use of DMs | 第55-58页 |
| ·Cross-level differences in the frequency of DMs | 第55页 |
| ·Cross-level differences in the type of DMs | 第55-56页 |
| ·Cross-level differences in distribution of types of DMs | 第56-58页 |
| ·The relationship between L2 learners’ use of DMs and their oral performance | 第58-62页 |
| ·Summary | 第62-64页 |
| Chapter Five Conclusion | 第64-67页 |
| ·Summary of the major findings | 第64-65页 |
| ·Pedagogical implications | 第65-66页 |
| ·Weaknesses of the study | 第66页 |
| ·Suggestions for future study | 第66-67页 |
| References | 第67-71页 |
| Appendixes | 第71-76页 |
| AppendixⅠ: Data imformation of sampled cases | 第71-72页 |
| AppendixⅡ: Some selected cases for the study | 第72-76页 |
| Acknowledgements | 第76-77页 |
