| Acknowledgements | 第1-6页 |
| Abstract | 第6-8页 |
| 摘要 | 第8-11页 |
| Ⅰ Introduction | 第11-14页 |
| ·Purpose and significance of the study | 第11-12页 |
| ·The objectives of the research | 第12页 |
| ·The arrangement of the thesis | 第12-14页 |
| Ⅱ Literature Review | 第14-31页 |
| ·The general overview of discourse markers | 第14-21页 |
| ·Terminology diversity of discourse markers | 第15-16页 |
| ·Different definitions and features of discourse markers | 第16-18页 |
| ·Classification of discourse markers | 第18-21页 |
| ·Previous studies on discourse markers | 第21-25页 |
| ·Foreign researches on discourse markers | 第21-24页 |
| ·Domestic researches on discourse markers | 第24-25页 |
| ·Well as a discourse marker | 第25-28页 |
| ·The use and acquisition of well | 第28-31页 |
| Ⅲ Data Collection and Methodology | 第31-38页 |
| ·Research questions and hypothesis | 第31页 |
| ·Material | 第31-34页 |
| ·Corpus description | 第31-33页 |
| ·Instruments | 第33-34页 |
| ·Data collection and analysis | 第34-35页 |
| ·Data collection | 第34-35页 |
| ·Data analysis | 第35页 |
| ·How to identify the discourse marker well from the two corpora | 第35-38页 |
| Ⅳ Research Results and Analysis | 第38-56页 |
| ·General frequencies of well in the two corpora .29 | 第38-41页 |
| ·Collocations of well | 第41-43页 |
| ·Analysis on syntactical positions of well in SECCL | 第43-47页 |
| ·Well at turn-initial position | 第43-44页 |
| ·Well at turn-internal position . | 第44-45页 |
| ·Well at turn-final positon | 第45-46页 |
| ·Position analysis of well in the two corpora | 第46-47页 |
| ·Pragmatic Functions of well in SECCL | 第47-54页 |
| ·Patterns of well Used by Chinese EFL Learners | 第54-56页 |
| Ⅴ Possible Factors Contributing to the Acquisition of Discourse Markers | 第56-66页 |
| ·Negative transfer | 第56-57页 |
| ·Pragmatic fossilization | 第57-59页 |
| ·Lack of instruction on DMs | 第59-61页 |
| ·The limit of the learners’ processing capacity | 第61-62页 |
| ·Failure to notice of DMs | 第62-66页 |
| Ⅵ Conclusion | 第66-70页 |
| ·Major findings | 第66-67页 |
| ·Implications | 第67页 |
| ·Limitations | 第67-68页 |
| ·Suggestions for future research | 第68-70页 |
| Bibliography | 第70-74页 |
| 硕士期间发表论文 | 第74页 |
