| ACKNOWLEDGEMENTS | 第6-7页 |
| 摘要 | 第7-9页 |
| Abstract | 第9-11页 |
| Chapter One INTRODUCTION | 第17-21页 |
| 1.1 Need for the Study | 第18-20页 |
| 1.2 Overview of the Thesis | 第20-21页 |
| Chapter Two LITERATURE REVIEW | 第21-39页 |
| 2.1 Theoretical Background | 第21-29页 |
| 2.1.1 Definition of evidentiality | 第21-23页 |
| 2.1.2 Analytical frameworks of evidentiality | 第23-29页 |
| 2.1.2.1 Classification models in a narrow sense | 第23-24页 |
| 2.1.2.2 Classification models in a broad sense | 第24-27页 |
| 2.1.2.3 Analytical framework of evidentiality adopted in this study | 第27-29页 |
| 2.2 Research Orientations of Evidentiality | 第29-32页 |
| 2.2.1 Typological and cross-linguistic perspective | 第29-30页 |
| 2.2.2 Cognitive perspective to evidentiality | 第30页 |
| 2.2.3 Functional turn of evidentiality studies | 第30-32页 |
| 2.2.4 Stance of the present study | 第32页 |
| 2.3 Related Studies | 第32-37页 |
| 2.3.1 Discourse-based studies on evidentiality | 第32-36页 |
| 2.3.1.1 Studies on evidentiality in conversations | 第33-34页 |
| 2.3.1.2 Studies on evidentiality in written discourses | 第34-36页 |
| 2.3.2 Corpus-based studies on evidentiality | 第36-37页 |
| 2.4 Research Gaps and Significance of the Present Study | 第37-39页 |
| Chapter Three METHODOLOGY | 第39-49页 |
| 3.1 Research Questions | 第39-40页 |
| 3.2 The Study | 第40-49页 |
| 3.2.1 Data sources | 第40-41页 |
| 3.2.2 Data analysis | 第41-49页 |
| 3.2.2.1 Working definition of evidentiality and evidentials | 第41-43页 |
| 3.2.2.2 Pilot analysis and coding scheme | 第43-46页 |
| 3.2.2.3 Coding procedures | 第46-48页 |
| 3.2.2.4 Statistical analysis | 第48-49页 |
| Chapter Four RESULTS AND DISCUSSION | 第49-69页 |
| 4.1 Overall use of evidentials in Chinese EFL students' thesis writing | 第49-60页 |
| 4.1.1 Frequency of sensory evidentials | 第51-53页 |
| 4.1.2 Frequency of belief evidentials | 第53-55页 |
| 4.1.3 Frequency of reporting evidentials | 第55-58页 |
| 4.1.4 Frequency of inferring evidentials | 第58-60页 |
| 4.2 Cross-sectional features of Chinese EFL students' use of evidentials | 第60-69页 |
| 4.2.1 Distribution of sensory evidentials in BA, MA, PhD students' thesis writing | 第63-64页 |
| 4.2.2 Distribution of belief evidentials in BA, MA, PhD students' thesis writing | 第64-65页 |
| 4.2.3 Distribution of reporting evidentials in BA, MA, PhD students' thesis writing | 第65-67页 |
| 4.2.4 Distribution of inferring evidentials in BA, MA, PhD students' thesis writing | 第67-69页 |
| Chapter Five CONCLUSION | 第69-73页 |
| 5.1 Major Findings | 第69-71页 |
| 5.1.1 General use of evidentials in Chinese EFL students' thesis writing | 第69-70页 |
| 5.1.2 Cross-sectional features of Chinese EFL students' use of evidentials in their thesis writing | 第70-71页 |
| 5.2 Implications of the Study | 第71-72页 |
| 5.3 Limitations of the Study and Suggestions for Future Research | 第72-73页 |
| REFERENCES | 第73-78页 |
| APPENDICES | 第78-82页 |
| Appendix A: Data Coding Samples | 第78-80页 |
| Appendix B: Evidentials Identified in the Current Study | 第80-82页 |
