| Acknowledgements | 第1-8页 |
| 摘要 | 第8-10页 |
| Abstract | 第10-13页 |
| List of Figures | 第13-15页 |
| List of Tables | 第15-16页 |
| CHAPTER ONE INTRODUCTION | 第16-24页 |
| ·Overview of Evidentiality | 第16-17页 |
| ·Need for Studying Discourse Features of English Evidentiality | 第17-18页 |
| ·Reason for Choosing News Reports of Epidemic Situation Update | 第18-19页 |
| ·Major Theories Used in the Study | 第19-20页 |
| ·Register of News Reports of Epidemic Situation Update | 第20-22页 |
| ·Research Questions | 第22页 |
| ·Significance of the Study and Organization of the Dissertation | 第22-24页 |
| CHAPTER TWO LITERATURE REVIEW AND-DEFINITION OF EVIDENTIALITY IN THE DISSERTATION | 第24-57页 |
| ·Studies on Evidentiality | 第24-41页 |
| ·Chafe's model of evidentiality | 第24-28页 |
| ·Palmer's model of evidentiality | 第28-32页 |
| ·Aikhenvald's views on evidentiality | 第32-36页 |
| ·Mushin's views on evidentiality | 第36-41页 |
| ·Studies on Discourse Features of Evidentiality | 第41-47页 |
| ·Cognitive perspective | 第41-43页 |
| ·Genre and cultural perspective | 第43-44页 |
| ·Pragmatic perspective | 第44-47页 |
| ·Definition of Evidentiality in the Dissertation | 第47-54页 |
| ·Evidence quality | 第47-50页 |
| ·Evidential model in the dissertation | 第50-52页 |
| ·Types of evidentials in the analysis | 第52-54页 |
| ·Summary | 第54-57页 |
| CHAPTER THREE DATA COLLECTION AND RESEARCH METHODOLOGY | 第57-69页 |
| ·Data Collection | 第57-61页 |
| ·Data specification | 第57-58页 |
| ·Data collection and classification | 第58-61页 |
| ·Research Methodology | 第61-68页 |
| ·Theoretical framework | 第61-65页 |
| ·Research framework | 第65-68页 |
| ·Summary | 第68-69页 |
| CHAPTER FOUR IDEATIONAL DISCOURSE FEATURES OF EVIDENTIALTIY | 第69-110页 |
| ·Evidentiality and Process Features | 第69-86页 |
| ·Zero-marked evidential | 第70-77页 |
| ·Hearsay and quotative evidential | 第77-83页 |
| ·Inferential evidential | 第83-86页 |
| ·Evidentiality and Semantic Roles | 第86-99页 |
| ·Reporter's semantic roles | 第87-94页 |
| ·External information sources' semantic roles | 第94-99页 |
| ·Evidentiality and Deictic Worlds | 第99-108页 |
| ·Epistemological deixis and Deictic Center Theory | 第99-102页 |
| ·Deictic shift | 第102-108页 |
| ·Summary | 第108-110页 |
| CHAPTER FIVE INTERPERSONAL DISCOURSE FEATURES OF EVIDENTIALITY | 第110-157页 |
| ·Evidentiality and Knowledge Reliability | 第110-135页 |
| ·Manners of evidence acquisition | 第111-113页 |
| ·Evidence ownership | 第113-118页 |
| ·Specification of information sources | 第118-135页 |
| ·Evidentiality and Modality | 第135-146页 |
| ·Performativity of modalization | 第135-139页 |
| ·Intersubjectivity of modalization | 第139-146页 |
| ·Evidentiality and Engagement | 第146-155页 |
| ·Monogloss | 第147-149页 |
| ·Heterogloss | 第149-155页 |
| ·Summary | 第155-157页 |
| CHAPTER SIX CONCLUSION | 第157-169页 |
| ·Findings of This Dissertation | 第157-166页 |
| ·Discourse features of zero-marked evidentials | 第157-159页 |
| ·Discourse features of hearsay evidentials | 第159-163页 |
| ·Discourse features of quotative evidentials | 第163-164页 |
| ·Discourse features of inferential evidentials | 第164-166页 |
| ·Contributions of This Dissertation | 第166-168页 |
| ·Suggestions for Future Research | 第168-169页 |
| BIBLIOGRAPHY | 第169-175页 |
