| Abstract | 第3页 |
| 摘要 | 第4-6页 |
| Introduction | 第6-9页 |
| Part Ⅰ Literature Review | 第9-12页 |
| Part Ⅱ Identity Theory | 第12-18页 |
| Part Ⅲ Multiple Identities of the Duchess of Malfi in Different Circumstances | 第18-32页 |
| 3.1. The Identities and Identity Standard of the Duchess of Malfi | 第18-20页 |
| 3.2. The Identity Changes of the Duchess of Malfi | 第20-23页 |
| 3.3. The Contradictions and Conflicts among Identities of the Duchess | 第23-26页 |
| 3.4. The Cause of Contradictions and Conflicts among Identities of the Duchess of Malfi | 第26-30页 |
| 3.4.1. Self-verification Process on the Identity Change of the Duchess | 第26-28页 |
| 3.4.2. External Influence exerted by Social Background on Self-verification of the Duchess | 第28-30页 |
| 3.5. Contradictions and Conflicts of identities---the root of tragedy of the Duchess of Malfi | 第30-32页 |
| Part Ⅳ Dual Identities of Ferdinand | 第32-39页 |
| 4.1. The Identity and Internal Identity Standard of Ferdinand | 第32-33页 |
| 4.2. The Identity Change of Ferdinand | 第33-35页 |
| 4.3. The Cause of Identity Change of Ferdinand | 第35-37页 |
| 4.4. Ferdinand---the self-victim of Conflicts and Contradictions of identities | 第37-39页 |
| Part Ⅴ Multiple Identities of Bosola in Different Circumstances | 第39-45页 |
| 5.1. The Identity and Internal Identity Standard of Bosola | 第39-40页 |
| 5.2. The Identity Change of Bosola in Different Circumstances | 第40-41页 |
| 5.3. The Cause of Identity Change of Bosola | 第41-43页 |
| 5.4. Bosola--- a tragic figure of identity | 第43-45页 |
| Conclusion | 第45-47页 |
| Works Cited | 第47-49页 |
| Acknowledgements | 第49页 |
