| 摘要 | 第5-6页 |
| Abstract | 第6-7页 |
| Chapter 1 Introduction | 第12-17页 |
| 1.1 Background of the study | 第12-13页 |
| 1.2 Aims and significance of the study | 第13-14页 |
| 1.3 Innovative points | 第14-15页 |
| 1.4 Outline of the study | 第15-17页 |
| Chapter 2 Literature Review | 第17-24页 |
| 2.1 Previous studies on quasi-modal be able to | 第17-19页 |
| 2.1.1 Previous studies abroad | 第17-18页 |
| 2.1.2 Previous studies at home | 第18-19页 |
| 2.2 Previous studies on modal co-occurrence | 第19-21页 |
| 2.2.1 Previous studies abroad | 第20页 |
| 2.2.2 Previous studies at home | 第20-21页 |
| 2.3 Previous studies on word sense disambiguation with Formal Concept Analysis..102.4 Space for this study | 第21-23页 |
| 2.4 Space for this study | 第23-24页 |
| Chapter 3 Methodology and Data Collection | 第24-29页 |
| 3.1 Methodology of the study | 第24-25页 |
| 3.2 Data collection | 第25-26页 |
| 3.3 Research procedure | 第26-29页 |
| Chapter 4 Construction of WSD Model by FCA | 第29-51页 |
| 4.1 Semantic categorization of be able to | 第29-30页 |
| 4.2 Construction of training and testing sets | 第30-31页 |
| 4.3 Calculation and discretization of mutual information | 第31-35页 |
| 4.4 Syntactic features selection | 第35-37页 |
| 4.5 Word sense disambiguation model of be able to | 第37-42页 |
| 4.6 Analysis of attribute features | 第42-51页 |
| 4.6.1 Rule extraction | 第42-47页 |
| 4.6.2 Influence of attribute features on the senses of be able to | 第47-49页 |
| 4.6.3 Layer distribution of attribute features | 第49-51页 |
| Chapter 5 Research on Modal Co-occurrence of be able to | 第51-69页 |
| 5.1 Introduction to modal co-occurrence of be able to | 第51-60页 |
| 5.1.1 Camparison between modal co-occurrence and double modal construction | 第51-53页 |
| 5.1.2 Syntactic features of modal co-occurrence | 第53-60页 |
| 5.2 Regularity of sense combination of M1M2 | 第60-65页 |
| 5.2.1 The distribution of the first modals (M1) | 第60-61页 |
| 5.2.2 The sense combination of M1M2 | 第61-62页 |
| 5.2.3 Regularity of sense combination of M1M2 | 第62-65页 |
| 5.3 The function of modal co-occurrence of be able to | 第65-67页 |
| 5.4 The restrictive relations between the two modals | 第67-69页 |
| Chapter 6 Conclusions | 第69-73页 |
| 6.1 Major findings | 第69-71页 |
| 6.2 Implications of the study | 第71页 |
| 6.3 Limitations and suggestions | 第71-73页 |
| Reference | 第73-77页 |
| Appendix Ⅰ | 第77-82页 |
| Appendix Ⅱ | 第82-87页 |
| Appendix Ⅲ | 第87-93页 |
| Acknowledgements | 第93页 |
