| 摘要 | 第5-6页 |
| ABSTRACT | 第6-7页 |
| Chapter 1 Introduction | 第12-17页 |
| 1.1 Research Background | 第12-13页 |
| 1.2 Purpose and Significance of the Study | 第13-14页 |
| 1.3 Research Questions | 第14-15页 |
| 1.4 Layout of the Thesis | 第15-17页 |
| Chapter 2 Literature Review | 第17-38页 |
| 2.1 English Modality | 第17-24页 |
| 2.1.1 Definition of English Modality | 第17-19页 |
| 2.1.2 Classification of English Modality | 第19-24页 |
| 2.1.2.1 Deontic Modality | 第20-22页 |
| 2.1.2.2 Epistemic Modality | 第22-24页 |
| 2.2 English Modal Verbs | 第24-25页 |
| 2.3 Negation of English Modal Verbs | 第25-30页 |
| 2.3.1 Definition and Formation of Negated English Modal Verbs | 第25-28页 |
| 2.3.2 The Scopes of Negation by Negated English Modal Verbs | 第28-30页 |
| 2.4 Modality Realized by Negated English Modal Verbs | 第30-34页 |
| 2.4.1 Deontic Modality by Negated English Modal Verbs | 第30-32页 |
| 2.4.2 Epistemic Modality by Negated English Modal Verbs | 第32-34页 |
| 2.5 Previous Studies | 第34-37页 |
| 2.6 Summary | 第37-38页 |
| Chapter 3 Research Methodology | 第38-46页 |
| 3.1 The Corpora | 第38-41页 |
| 3.1.1 The Corpus-based Approach | 第38页 |
| 3.1.2 Corpora Used in the Study | 第38-40页 |
| 3.1.3 Qualitative Analysis and Quantitative Analysis | 第40-41页 |
| 3.2 Tools for Data Processing | 第41-44页 |
| 3.2.1 MonoConc2.2 | 第41-42页 |
| 3.2.2 CLAWS | 第42-43页 |
| 3.2.3 SPSS | 第43-44页 |
| 3.2.4 Microsoft Excel | 第44页 |
| 3.3 Procedures for Data Analysis | 第44-46页 |
| Chapter 4 Results and Discussion | 第46-69页 |
| 4.1 Overall distributions of negated modal verbs | 第46-54页 |
| 4.1.1 Frequencies of Negated Modal Verbs by Chinese EFL Learners | 第46-49页 |
| 4.1.2 Comparison of Frequencies of Negated Modal Verbs betweenSWECCL and BNC | 第49-52页 |
| 4.1.3 Comparison of Frequencies of Negated Modal Verbs in SECCL andWECCL | 第52-54页 |
| 4.2 Syntactic Features of Negated English Modal Verbs | 第54-61页 |
| 4.2.1 Features of Subject | 第55-56页 |
| 4.2.2 Features of Voice | 第56-58页 |
| 4.2.3 Features of Aspect | 第58-61页 |
| 4.2.4 Summary | 第61页 |
| 4.3 Modal Features of Negated English Modal Verbs by Chinese EFL Learners | 第61-69页 |
| 4.3.1 Deontic Modality of Negated English Modal Verbs by Chinese EFLLearners | 第62-65页 |
| 4.3.2 Epistemic Modality of Negated English Modal Verbs by Chinese EFLLearners | 第65-68页 |
| 4.3.3 Summary | 第68-69页 |
| Chapter 5 Conclusion | 第69-74页 |
| 5.1 Major Findings in This Research | 第69-71页 |
| 5.2 Implications of This Research | 第71-72页 |
| 5.3 Limitations | 第72-74页 |
| References | 第74-77页 |
| Acknowledgements | 第77-78页 |
| Resume | 第78页 |
