| 摘要 | 第1-6页 |
| Abstract | 第6-11页 |
| Chapter1 Introduction | 第11-14页 |
| ·Research Background | 第11页 |
| ·The Triggers of This Research | 第11-12页 |
| ·The Research Questions | 第12页 |
| ·The Organization of the Thesis | 第12-14页 |
| Chapter 2 Literature Review | 第14-32页 |
| ·Terminology Diversity of DMs | 第14页 |
| ·Definition of DMs | 第14-15页 |
| ·Properties of DMs | 第15-19页 |
| ·Colorlessness of DMs | 第16-17页 |
| ·Detachability of DMs | 第17页 |
| ·Pragmatic Motivation of DMs | 第17-19页 |
| ·Classification of DMs | 第19-21页 |
| ·Basic Pragmatic Markers | 第20页 |
| ·Commentary Pragmatic Markers | 第20页 |
| ·Parallel Pragmatic Markers | 第20-21页 |
| ·Discourse Markers, | 第21页 |
| ·Two Approaches to DMs | 第21-25页 |
| ·Coherence-based Approach to DMs | 第21-24页 |
| ·Relevance-theoretic Approach to DMs | 第24-25页 |
| ·Brown and Levinson's Theory of Politeness | 第25-26页 |
| ·Previous Research on DM Use and Acquisition | 第26-29页 |
| ·DM Use and Acquisition by Native Speakers | 第26-28页 |
| ·DM Use and Acquisition by L2 Learners | 第28-29页 |
| ·Corpus and DMs Study | 第29-32页 |
| ·Corpus-based Study of DMs | 第29-30页 |
| ·Learner Corpus and DMs Study | 第30-32页 |
| Chapter 3 Methodology | 第32-35页 |
| ·Data collection | 第32-33页 |
| ·Studied Corpora | 第32-33页 |
| ·Research Procedure | 第33-35页 |
| ·Identifying and Retrieving you know from SECCL and SBCSAE | 第34-35页 |
| Chapter 4 Findings and Discussion | 第35-60页 |
| ·The Comparison between SECCL and Native Corpora | 第35-36页 |
| ·Collocations of you know in SECCL and SBCSAE | 第36-37页 |
| ·Position Analysis of you know in SECCL | 第37-41页 |
| ·Turn-initial. | 第37-38页 |
| ·Turn-internal | 第38-39页 |
| ·Turn-final | 第39-40页 |
| ·Position Analysis in SECCL and SBCSAE | 第40-41页 |
| ·Core Meaning of you know | 第41-43页 |
| ·Function of you know in SECCL | 第43-52页 |
| ·Marker of Information | 第44-47页 |
| ·Marker of Politeness | 第47-52页 |
| ·Patterns of you know by Chinese EFL learners | 第52-53页 |
| ·Possible Factors Underlying the Inappropriate Usage of you know | 第53-60页 |
| ·Context | 第53-54页 |
| ·Deficiency in Language Teaching | 第54页 |
| ·Situational Anxiety | 第54-55页 |
| ·Pragmatic Fossilization | 第55-56页 |
| ·Failure to Notice of DMs | 第56-57页 |
| ·No Instruction on DMs | 第57-58页 |
| ·The Limit of the Learners' Processing Capacity | 第58-60页 |
| Chapter 5 Conclusion | 第60-64页 |
| ·Major Findings of the Current Study | 第60-61页 |
| ·Pedagogical Significance | 第61-62页 |
| ·Limitations of the Present Study | 第62-63页 |
| ·Suggestions for Future Research | 第63-64页 |
| Reference | 第64-68页 |
| Appendix | 第68-80页 |
| Acknowledgments | 第80-81页 |
| Resume | 第81页 |
