| Abstract | 第4页 |
| 摘要 | 第5-9页 |
| 1 Introduction | 第9-13页 |
| 1.1 Reasearch background | 第9-11页 |
| 1.2 Objectives and significance of the study | 第11页 |
| 1.3 Research questions | 第11页 |
| 1.4 Organization of the study | 第11-13页 |
| 2 Literature Review | 第13-17页 |
| 2.1 Studies on Appraisal Theory | 第13-14页 |
| 2.1.1 Previous studies on Appraisal Theory abroad | 第13-14页 |
| 2.1.2 Previous studies on Appraisal Theory at home | 第14页 |
| 2.2 Studies on identity construction within Systemic Functional Linguistics (SFL) | 第14-17页 |
| 2.2.1 Previous studies on identity construciton within SFL abroad | 第14-15页 |
| 2.2.2 Previous studies on identity construciton within SFL at home | 第15-17页 |
| 3 Theoretical Framework | 第17-28页 |
| 3.1 Metafunctions: ideational, interpersonal and textual | 第17-19页 |
| 3.2 Discourse semantic systems realizing three metafunctions | 第19-23页 |
| 3.2.1 Ideation system | 第20页 |
| 3.2.2 Appraisal system | 第20-22页 |
| 3.2.3 Identification system | 第22-23页 |
| 3.3 Individuation, affiliation and identity | 第23-28页 |
| 4 Analysis and Discussion | 第28-58页 |
| 4.1 The identity as a victim of depression and medical negligence | 第28-39页 |
| 4.1.1 Construing the victim identity ideationally | 第28-30页 |
| 4.1.2 Enacting the victim identity interpersonally | 第30-38页 |
| 4.1.3 Organizing the victim identity textually | 第38-39页 |
| 4.2 The identity as a fighter against depression | 第39-42页 |
| 4.2.1 Construing the fighter identity ideationally | 第39页 |
| 4.2.2 Enacting the fighter identity interpersonally | 第39-41页 |
| 4.2.3 Organizing the fighter identity textually | 第41-42页 |
| 4.3 The identity as an arguer | 第42-58页 |
| 4.3.1 Construing the arguer identity ideationally | 第43-45页 |
| 4.3.2 Enacting the arguer identity interpersonally | 第45-55页 |
| 4.3.3 Organizing the arguer identity textually | 第55-58页 |
| 5 Conclusion | 第58-61页 |
| 5.1 Major contributions of the present study | 第59-60页 |
| 5.2 Limitations and suggestions for further studies | 第60-61页 |
| Bibliography | 第61-66页 |
| Acknowledgement | 第66-67页 |
| Academic Achievements | 第67页 |
