| Abstract | 第1-7页 |
| 摘要 | 第7-11页 |
| Chapter 1 Introduction | 第11-14页 |
| ·Background of the Study | 第11-12页 |
| ·Significance and Purpose of the Study | 第12页 |
| ·Organization of the Thesis | 第12-14页 |
| Chapter 2 Literature Review | 第14-20页 |
| ·Studies of Hedges Abroad | 第14-16页 |
| ·Studies of Hedges in China | 第16-17页 |
| ·Studies of Classroom Discourses | 第17-20页 |
| Chapter 3 Research Methodology | 第20-23页 |
| ·Research Questions | 第20页 |
| ·Data Collection | 第20-21页 |
| ·Research Procedures | 第21-23页 |
| Chapter 4 Results and Analysis | 第23-37页 |
| ·The General Situation of Hedges in Classroom Discourses | 第23-31页 |
| ·Overall Frequency of Hedges | 第23-25页 |
| ·Adaptors in Classroom Discourses | 第25-26页 |
| ·Rounders in Classroom Discourses | 第26-27页 |
| ·Plausibility Shields in Classroom Discouses | 第27-30页 |
| ·Attribution Shields in Classroom Discourses | 第30-31页 |
| ·Analysis of Hedges in Classroom Discourses | 第31-37页 |
| ·Analysis of Hedges Based on Cooperative Principle | 第31-33页 |
| ·Analysis of Hedges Based on Politeness Principle | 第33-37页 |
| Chapter 5 Pragmatic Functions of Hedges and Pedagogical Implications | 第37-46页 |
| ·Pragmatic Functions of Hedges | 第37-41页 |
| ·Creating a Mild Tone | 第37-38页 |
| ·Filling Lexical Gaps | 第38-39页 |
| ·Self-Protection | 第39页 |
| ·Reducing the “Affective Filter” | 第39-41页 |
| ·Pedagogical Implications | 第41-46页 |
| ·From Teachers’Perspective | 第41-42页 |
| ·From Students’Perspective | 第42-44页 |
| ·Possible Suggestions for Teaching Hedges | 第44-46页 |
| Chapter 6 Conclusion | 第46-49页 |
| ·Findings | 第46-47页 |
| ·Limitations of the Study | 第47-48页 |
| ·Suggestions for Future Research | 第48-49页 |
| Works Cited | 第49-51页 |
| Bibliography | 第51-54页 |
| Appendix 1 | 第54-59页 |
| Appendix 2 | 第59-63页 |
| Acknowledgements | 第63页 |
