| Acknowledgements | 第1-6页 |
| Abstract | 第6-8页 |
| Chapter 1 Introduction | 第8-13页 |
| ·Linguistic theory about feedbacks | 第8-9页 |
| ·The importance of effective feedbacks in conversation | 第9-11页 |
| ·The purpose of doing this research | 第11页 |
| ·The structure of this thesis | 第11-13页 |
| Chapter 2 Literature Review | 第13-32页 |
| ·Analytic components of communication | 第13-14页 |
| ·Feedbacks as an area of investigation | 第14-32页 |
| ·The notion of feedbacks | 第16-19页 |
| ·The forms of linguistic feedbacks | 第19-21页 |
| ·The positions of linguistic feedbacks | 第21-23页 |
| ·Basic functions of linguistic feedback | 第23-26页 |
| ·Other achievements of different scholars in the study of feedbacks | 第26-30页 |
| ·Comments on the earlier studies | 第30-32页 |
| Chapter 3 The Present Research | 第32-65页 |
| ·Data for this study | 第32-35页 |
| ·Working with a large-size corpus | 第32-33页 |
| ·Looking at a wide variety of items | 第33-35页 |
| ·Feedback tokens in the corpus: quantitative data | 第35-38页 |
| ·Data and findings | 第38-65页 |
| ·The forms of feedback | 第38-49页 |
| ·Feedback tokens without expanded content | 第39-41页 |
| ·Feedback tokens preceding expanded responses | 第41-42页 |
| ·Feedback tokens with premodification | 第42-43页 |
| ·Negated feedback tokens | 第43-45页 |
| ·Doublets and triplets | 第45-47页 |
| ·Feedback tokens in short clauses | 第47-49页 |
| ·The positions of feedback tokens | 第49-52页 |
| ·Non-natural pause of the speaker's utterance | 第50-51页 |
| ·Natural pause of the speaker's utterance | 第51-52页 |
| ·The functions of feedbacks | 第52-58页 |
| ·Contact | 第52-53页 |
| ·Understanding | 第53-54页 |
| ·Approval | 第54-55页 |
| ·Appraisement/Evaluation | 第55-56页 |
| ·Acknowledgement | 第56页 |
| ·Confirmation /Clarification | 第56-57页 |
| ·Concession | 第57-58页 |
| ·The Sociolinguistic variation of feedback: power and context | 第58-65页 |
| ·Comparing different contexts | 第59-60页 |
| ·Comparing people with different power | 第60-62页 |
| ·Comparing people with different power in different context | 第62-63页 |
| ·Discussion | 第63-65页 |
| Chapter 4 Feedbacks in the Classroom | 第65-69页 |
| Chapter 5 Conclusion and Perspectives for Further Research | 第69-72页 |
| ·Conclusion | 第69-70页 |
| ·Perspectives for further research | 第70-72页 |
| References | 第72-78页 |
