| 摘要 | 第6-7页 |
| ABSTRACT | 第7页 |
| Chapter One Introduction | 第10-14页 |
| 1.1 Research Background | 第10-11页 |
| 1.2 Research Significance and Objective | 第11页 |
| 1.3 Research Hypotheses | 第11-12页 |
| 1.4 The Layout of the Thesis | 第12-14页 |
| Chapter Two Literature Review | 第14-25页 |
| 2.1 Different Perspectives on DMs | 第14-20页 |
| 2.1.1 Coherence-based Studies on DMs | 第15-16页 |
| 2.1.2 Grammar-pragmatic Studies on DMs | 第16-18页 |
| 2.1.3 Relevance-based Studies on DMs | 第18-20页 |
| 2.2 Studies of Teacher Talk and DMs in Classroom Discourse | 第20-23页 |
| 2.2.1 Classroom Discourse | 第20-22页 |
| 2.2.2 Teacher Talk and the Use of DMs | 第22-23页 |
| 2.3 Summary | 第23-25页 |
| Chapter Three Theoretical Framework and Research Approach | 第25-33页 |
| 3.1 Relevance Theory | 第25-27页 |
| 3.1.1 Key Concepts in Relevance Theory | 第25-26页 |
| 3.1.2 Ostensive-Inferential Communication | 第26-27页 |
| 3.2 Communication in Classroom | 第27-29页 |
| 3.2.1 Classroom Context | 第27-28页 |
| 3.2.2 Ostensive-Inferential Communication in Classroom | 第28-29页 |
| 3.3 Research Methodology | 第29-33页 |
| 3.3.1 Data Collection | 第29-30页 |
| 3.3.2 Research Subjects | 第30-31页 |
| 3.3.3 Research Materials | 第31-33页 |
| Chapter Four DMs in Classroom Discourse of Non-Native and Native College Teachers | 第33-50页 |
| 4.1The General Description of DMs in Non-Native Teacher Talks | 第33-36页 |
| 4.1.1 Frequency of DMs | 第33-35页 |
| 4.1.2 Proportion of DMs | 第35-36页 |
| 4.2 Functions of DMs in Non-Native Teacher Talks | 第36-41页 |
| 4.2.1 Introducing Contextual Implications | 第37-38页 |
| 4.2.2 Strengthening Existing Assumption | 第38-39页 |
| 4.2.3 Contradicting Existing Assumptions | 第39-41页 |
| 4.3 Differences in the Use of DMs between Non-Native and Native College Teachers | 第41-50页 |
| 4.3.1 Distributional Differences | 第41-48页 |
| 4.3.2 Functional Differences | 第48-50页 |
| Chapter Five Underlying Mechanism of Inappropriate Uses of DMs | 第50-58页 |
| 5.1 Inappropriate Uses of DMs in Non-Native College Teacher Talks | 第50-54页 |
| 5.1.1 Overuse of DMs to Introduce Contextual Implications | 第50-52页 |
| 5.1.2 Misuse of DMs | 第52页 |
| 5.1.3 Lack of DMs to Strengthen or Contradict Existing Assumptions | 第52-54页 |
| 5.2 Factors Leading to Inappropriate Uses of DMs | 第54-58页 |
| 5.2.1 Pragmalinguistic Failure Resulting In Misuse of DMs | 第54-55页 |
| 5.2.2 Socio-pragmatic Failure Giving Rise to Lack and Overuse of DMs | 第55-56页 |
| 5.2.3 Chinese Cognitive Assumptions of Teaching Underlying Different Uses of DMs | 第56-58页 |
| Chapter Six Conclusions | 第58-61页 |
| 6.1 Major Research Findings | 第58-59页 |
| 6.2 Implications and Limitations | 第59页 |
| 6.3 Suggestions | 第59-61页 |
| 6.3.1 Linguistic Perspective | 第59-60页 |
| 6.3.2 Teaching Perspective | 第60-61页 |
| Appendix | 第61-67页 |
| References | 第67-70页 |
| 在读期间公开发表的论文 | 第70-71页 |
| Acknowledgements | 第71页 |
