| Acknowledgements | 第5-6页 |
| 摘要 | 第6-8页 |
| Abstract | 第8-10页 |
| List of Figures and Tables | 第11-15页 |
| Chapter 1 Introduction | 第15-20页 |
| 1.1 The Purpose and Significance of the Study | 第15-16页 |
| 1.2 Problems to be solved | 第16页 |
| 1.3 Data Collection and Corpus Description | 第16-17页 |
| 1.4 Research Methods | 第17-18页 |
| 1.5 Organization of the Thesis | 第18-20页 |
| Chapter 2 Literature Review | 第20-35页 |
| 2.1 Previous Studies of Discourse Markers | 第20-29页 |
| 2.1.1 Definition of Discourse Markers | 第20-22页 |
| 2.1.2 Foreign and Domestic Research of Discourse Markers | 第22-26页 |
| 2.1.3 Previous Studies of You Know and Its Functions | 第26-29页 |
| 2.2 Previous Studies of Meta-cognition | 第29-33页 |
| 2.2.1 Definition of Meta-cognition | 第29-30页 |
| 2.2.2 Previous Studies of Meta-cognition Abroad | 第30-31页 |
| 2.2.3 Previous Studies of Meta-cognition in China | 第31-33页 |
| 2.3 Previous Studies of Discourse Markers from the Meta-cognitive Perspective | 第33-35页 |
| Chapter 3 Theoretical Framework | 第35-45页 |
| 3.1 Levelt's Model of Speech Production | 第35-38页 |
| 3.2 Theoretical Framework of Meta-cognition | 第38-43页 |
| 3.2.1 Flavell's Theoretical Framework | 第38-40页 |
| 3.2.2 Brown's Theoretical Framework | 第40-41页 |
| 3.2.3 Nelson and Naren's Theoretical Framework | 第41-42页 |
| 3.2.4 Summary | 第42-43页 |
| 3.3 The Operating Process of Meta-cognitive Activities | 第43-45页 |
| Chapter 4 Analysis of the Pragmatic Functions of Discourse Marker You Know in theThree American Sitcoms | 第45-87页 |
| 4.1 A Brief Introduction to the Three American Sitcoms | 第45-47页 |
| 4.2 Grammatical Function and Pragmatic Function of You Know | 第47-51页 |
| 4.3 The Frequency of the Pragmatic Functions of the Discourse Marker You Know | 第51-53页 |
| 4.4 A Meta-cognitive Analysis of the Pragmatic Functions of the Discourse Marker You Know in the Three American Sitcoms | 第53-80页 |
| 4.4.1 Function to Govern Turn | 第54-58页 |
| 4.4.2 Function to Adjust Interpersonal Relationship | 第58-61页 |
| 4.4.3 Function as an Emotion-indicating Marker | 第61-65页 |
| 4.4.4 Function as a Further Elaborating Marker | 第65-68页 |
| 4.4.5 Function to Introduce Rhetorical Questions | 第68-70页 |
| 4.4.6 Function as an Information Reminder | 第70-71页 |
| 4.4.7 Function as an Exemplifying Marker | 第71-73页 |
| 4.4.8 Funntion as an Advising Marker | 第73-75页 |
| 4.4.9 Function to Revise Information | 第75-78页 |
| 4.4.10 Function as a Supposing Marker | 第78-80页 |
| 4.5 The Effects of the Pragmatic Functions of You Know on the Three American Sitcoms | 第80-86页 |
| 4.5.1 To Ensure the Discourse Coherence | 第81-83页 |
| 4.5.2 To Maintain the Interpersonal relationship | 第83-84页 |
| 4.5.3 To Avoid Misunderstandings | 第84-86页 |
| 4.6 Summary | 第86-87页 |
| Chapter 5 Conclusion | 第87-92页 |
| 5.1 Major Findings | 第87-89页 |
| 5.2 Pedagogical Implications | 第89-90页 |
| 5.3 Limitations of the Present Study and Suggestions for Future Research | 第90-92页 |
| Bibliography | 第92-98页 |
| Papers Published During the Study for M.A.Degree | 第98页 |
