| Abstract | 第1-8页 |
| 摘要 | 第8-9页 |
| Contents | 第9-11页 |
| Chapter one Introduction | 第11-14页 |
| ·Background of the Study | 第11-12页 |
| ·Significance and Purpose of the Study | 第12-13页 |
| ·Organization of the Thesis | 第13-14页 |
| Chapter Two Literature Review | 第14-24页 |
| ·Overview of Hedges | 第14-24页 |
| ·Definitions of Hedges | 第14-16页 |
| ·Present Study on Hedges | 第16-19页 |
| ·Researches on Hedges Abroad | 第16-18页 |
| ·Researches on Hedges at Home | 第18-19页 |
| ·Classifications of Hedges | 第19-21页 |
| ·Functions of Hedges | 第21-22页 |
| ·Pragmatic Functions of Hedges | 第22-24页 |
| Chapter Three Theoretical Framework | 第24-31页 |
| ·The Theory of Conversational Implicature | 第24-26页 |
| ·Cooperative Principle | 第26-27页 |
| ·Politeness Principle | 第27-29页 |
| ·FTA Theory | 第29-31页 |
| Chapter Four Research Methodology | 第31-35页 |
| ·Research Questions | 第31页 |
| ·Objectives and Research Object of the Study | 第31-32页 |
| ·Data Collection | 第32页 |
| ·Data Sorting | 第32-33页 |
| ·Research Procedures | 第33-35页 |
| Chapter Five Pragmatic Analysis of Hedges in Teacher Talk in Class | 第35-57页 |
| ·Types and Frequency of Hedges in Teacher Talk | 第35-37页 |
| ·Pragmatic Analysis of Hedges in Teacher Talk in Class | 第37-45页 |
| ·Adaptors in Teacher Talk | 第37-39页 |
| ·Rounders in Teacher Talk | 第39-40页 |
| ·Plausibility Shields in Teacher Talk | 第40-43页 |
| ·Attribution Shields in Teacher Talk | 第43-45页 |
| ·Pragmatic Functions of Hedges in Teacher Talk | 第45-54页 |
| ·Motivating a Polite Atmosphere in Class | 第45-48页 |
| ·Promoting an Effective Understanding and Acquisition of Knowledge | 第48-50页 |
| ·Creating a Harmonious Relationship between Teachers and Students | 第50-52页 |
| ·Students' Face-saving and Teachers' Self-face-saving in Class | 第52-54页 |
| ·Teaching Strategies of Using Hedges in Teacher Talk in Class | 第54-57页 |
| ·Highlighting the Imporance of Proper Use of Hedges in Class | 第54-55页 |
| ·Tactfully Making Use of Hedges in Class | 第55-57页 |
| Chapter Six Conclusion | 第57-60页 |
| ·Findings of the Research | 第57-58页 |
| ·Limitations of the Study | 第58页 |
| ·Suggestions for Further Study | 第58-60页 |
| Bibliography | 第60-63页 |
| Appendix | 第63-70页 |
| Acknowledgements | 第70页 |
