| Acknowledgements | 第1-5页 |
| Abstract (in English) | 第5-7页 |
| Abstract (in Chinese) | 第7-10页 |
| 1. Introduction | 第10-15页 |
| ·The General Purpose of the Study | 第11页 |
| ·Backgrounds | 第11-13页 |
| ·The Problems of Some Humorous Cases | 第11-12页 |
| ·Pragmatic Presupposition Consideration | 第12-13页 |
| ·Major Ideas Advanced | 第13页 |
| ·The Layout of this Thesis | 第13-15页 |
| 2. The Features of Presupposition | 第15-30页 |
| ·Presupposition and Entailment | 第15-19页 |
| ·The Definitions of Presupposition and Entailment | 第15-17页 |
| ·Distinguishing Features of Presupposition and Entailment | 第17-19页 |
| ·Presupposition and Conversational Implicature | 第19-23页 |
| ·Distinguishing Feature of Presupposition | 第20-21页 |
| ·Distinguishing Feature of Conversational Implicature | 第21-23页 |
| ·Presupposition Triggers | 第23-27页 |
| ·The Presupposition-triggers in English | 第23-25页 |
| ·The Presupposition-triggers in Chinese | 第25-27页 |
| ·Summary | 第27页 |
| ·Presupposition’s Property of Cancellation or Defeasibility | 第27-30页 |
| 3. Literature Review | 第30-38页 |
| ·Semantic Presupposition and Pragmatic Presupposition | 第30-33页 |
| ·Semantic Presupposition | 第31-32页 |
| ·Pragmatic Presupposition | 第32-33页 |
| ·Summary | 第33页 |
| ·Different Views on Pragmatic Presupposition | 第33-38页 |
| ·The Analysis of Three Different Views on Pragmatic Presupposition | 第34-36页 |
| ·Summary | 第36-38页 |
| 4. The Analysis on Cancellation-propelled Humorous Cases | 第38-48页 |
| ·Case Study | 第38-46页 |
| ·Case Study of Type One | 第39-40页 |
| ·Case Study of Type Two | 第40-41页 |
| ·Case Study of Type Three | 第41-42页 |
| ·Case Study of Type Four | 第42-43页 |
| ·Case Study of Type Five | 第43-45页 |
| ·Case Study of Type Six | 第45-46页 |
| ·Summary | 第46-48页 |
| 5. The Analysis on the Factors Resulting in the Evaporation of Presupposition | 第48-56页 |
| ·Linguistic Factors | 第49-52页 |
| ·Intra-sentential Context | 第49-50页 |
| ·Discourse Context | 第50-51页 |
| ·Construction of Reductio Arguments | 第51-52页 |
| ·Non-linguistic Factors | 第52-55页 |
| ·Common Knowledge | 第52-53页 |
| ·Background Knowledge | 第53-54页 |
| ·Body Language | 第54-55页 |
| ·Summary | 第55-56页 |
| 6. Conclusion | 第56-58页 |
| Bibliography | 第58-60页 |
