| Acknowledgements | 第1-6页 |
| Abstract | 第6-8页 |
| 摘要 | 第8-15页 |
| Chapter One Introduction | 第15-23页 |
| ·Research orientation | 第17-18页 |
| ·Remaining Issues of the existing studies | 第18-19页 |
| ·Rationale of the present study | 第19页 |
| ·Objective of the present study | 第19-20页 |
| ·Methodology of the current study | 第20-21页 |
| ·Outline of the thesis | 第21-23页 |
| Chapter Two Literature Review | 第23-53页 |
| ·Introduction | 第23页 |
| ·Terminological diversity | 第23-24页 |
| ·Definitions of metadiscourse | 第24-35页 |
| ·Existing definitions of metadiscourse | 第24-33页 |
| ·Working definition of metadiscourse | 第33-35页 |
| ·Diversified taxonomies of metadiscouse | 第35-42页 |
| ·Meyer’s classification | 第36页 |
| ·Lautamatti’s classification | 第36-38页 |
| ·Williams’ classification | 第38页 |
| ·Vande Kopple’s classification | 第38-39页 |
| ·Crismore et al’s classification | 第39-40页 |
| ·Hyland’s taxonomy | 第40-41页 |
| ·Rahman’s classification | 第41-42页 |
| ·Theoretical studies on metadiscourse | 第42-51页 |
| ·Communicative perspective | 第43-44页 |
| ·Sociolinguistic perspective | 第44-46页 |
| ·Psycholinguistic perspective | 第46-47页 |
| ·Functional perspective | 第47-49页 |
| ·Cognitive perspective | 第49-50页 |
| ·Rhetorical perspective | 第50-51页 |
| ·Summary | 第51-53页 |
| Chapter Three Research Methodology and Data Collection | 第53-57页 |
| ·Introduction | 第53页 |
| ·Research methodology of the present study | 第53-54页 |
| ·Data collection of the current study | 第54-55页 |
| ·Description of the data | 第55页 |
| ·Summary | 第55-57页 |
| Chapter Four Conceptual Framework: An Adaptation-Relevance Model | 第57-76页 |
| ·Introduction | 第57页 |
| ·Adaptation Theory | 第57-62页 |
| ·Adaptation | 第59-60页 |
| ·Context in Adaptation Theory | 第60-61页 |
| ·Metapragmatic awareness | 第61-62页 |
| ·Relevance Theory | 第62-66页 |
| ·Two pairs of concepts in Relevance Theory | 第63-64页 |
| ·Context in Relevance Theory | 第64-66页 |
| ·Relevance-Adaptation Model proposed by Yang Ping | 第66-68页 |
| ·Adaptation-Relevance Model proposed by Ran Yongping | 第68-69页 |
| ·An enriched Adaptation-Relevance Model of Metadiscourse in Academic Lectures | 第69-74页 |
| ·Description of the model | 第69-73页 |
| ·Features of the Model | 第73-74页 |
| ·Significance of the model | 第74页 |
| ·Summary | 第74-76页 |
| Chapter Five Metadiscourse in Academic Lectures: An Adaptation-Relevance Account | 第76-108页 |
| ·Introduction | 第76页 |
| ·Occurence of metadiscourse in academic lectures | 第76-80页 |
| ·Metatext (text-about-text management) in academic lectures | 第77-78页 |
| ·Metadiscourse (text-about-discourse management) in academic lectures | 第78-80页 |
| ·Contextual adaptation of metadiscourse in academic lectures | 第80-91页 |
| ·Adaptation to linguistic reality | 第80-82页 |
| ·Adaptation to psychological motivations | 第82-86页 |
| ·Adaptation to social conventions | 第86-91页 |
| ·Relevance-searching of metadiscourse in academic lectures | 第91-99页 |
| ·Contextual effect/processing effort distinction and metadiscourse in academic lectures | 第92-95页 |
| ·Explicit/implicit distinction and metadiscourse in academic lectures | 第95-97页 |
| ·Conceptual/procedural distinction and metadiscourse in academic lectures | 第97-99页 |
| ·Metadiscourse in academic lectures as choice of both making adaptations and searching for relevance | 第99-106页 |
| ·Adaptation-relevance as a feature of metadiscourse choice | 第100-103页 |
| ·On-line adaptations-making and relevance-searching in metadiscourse choice | 第103-104页 |
| ·Adaptations-making and relevance-searching as strategy in metadiscourse choice | 第104-106页 |
| ·Summary | 第106-108页 |
| Chapter Six Role of Metadiscourse in Academic Lectures Revisited | 第108-117页 |
| ·Introduction | 第108页 |
| ·Role of metadiscourse in past studies | 第108-110页 |
| ·Role of metadiscourse in academic lectures: a revisit | 第110-115页 |
| ·Significance of a revisit of the role of metadiscourse | 第110-111页 |
| ·Role of metadiscourse in academic lectures within the enriched Adaptation-Relevance Model | 第111-115页 |
| ·“Metadiscourse awareness”in academic lectures | 第115-116页 |
| ·Summary | 第116-117页 |
| Chapter Seven Role of Metadiscourse and Metadiscourse Awareness Possible Pedagogical Implications | 第117-125页 |
| ·Introduction | 第117页 |
| ·Possible implications for FLT | 第117-121页 |
| ·Possible implications for teacher training | 第121-122页 |
| ·Possible implications for curriculum design | 第122-123页 |
| ·Summary | 第123-125页 |
| Chapter Eight Conclusion | 第125-133页 |
| ·Introduction | 第125-126页 |
| ·Summary of the major findings | 第126-128页 |
| ·Limitations of the present study | 第128-130页 |
| ·Suggestions for further researches | 第130-133页 |
| Bibliography | 第133-141页 |
