| 摘要 | 第5-6页 |
| Abstract | 第6页 |
| List of Abbreviations | 第7-11页 |
| Chapter 1 Introduction | 第11-16页 |
| 1.1 Background of the Study | 第11-13页 |
| 1.2 Research Questions and Significance of the Study | 第13-14页 |
| 1.3 Layout of the Thesis | 第14-16页 |
| Chapter 2 Literature Review | 第16-33页 |
| 2.1 Introduction of Modal Auxiliaries | 第17-21页 |
| 2.1.1 Modal Auxiliaries Combined with Marked Aspect and Voice | 第19-20页 |
| 2.1.2 Classifications of Modal Auxiliaries According to Main Meanings | 第20-21页 |
| 2.2 Modality System | 第21-28页 |
| 2.2.1 Modality Type | 第22-24页 |
| 2.2.1.1 Modalization | 第23页 |
| 2.2.1.2 Modulation | 第23-24页 |
| 2.2.2 Modality Value | 第24-25页 |
| 2.2.3 Modality Orientation | 第25-27页 |
| 2.2.4 Modality Polarity | 第27-28页 |
| 2.3 Lexical and Syntactic Features of Legal English | 第28-30页 |
| 2.4 Previous Studies on Modal Auxiliaries | 第30-33页 |
| Chapter 3 Research Methodology | 第33-43页 |
| 3.1 Corpora Used in This Study | 第33-38页 |
| 3.1.1 Introduction of Corpus | 第33-34页 |
| 3.1.2 Corpus of SOLAS Convention | 第34-38页 |
| 3.1.3 Brown Corpus for Reference | 第38页 |
| 3.2 Research Tools | 第38-40页 |
| 3.3 Analysis Procedure | 第40-43页 |
| Chapter 4 Results and Analysis | 第43-70页 |
| 4.1 Distribution of Modal Auxiliaries in CSC and Brown Corpus | 第43-50页 |
| 4.2 Grammatical Analysis of Modal Aux-liaries | 第50-57页 |
| 4.2.1 Analysis of Modal Auxiliaries of Three Classifications by Biber | 第50-51页 |
| 4.2.2 Analysis of Modal Auxiliaries Combined with Marked Aspect and Voice | 第51-56页 |
| 4.2.3 Analysis of Modal Auxiliaries According to Main Meanings | 第56-57页 |
| 4.3 Functional Analysis of Use of Modal Auxiliaries | 第57-70页 |
| 4.3.1 Modality Type | 第57-63页 |
| 4.3.2 Modality Value | 第63-65页 |
| 4.3.3 Modality Orientation | 第65-66页 |
| 4.3.4 Modality Polarity | 第66-70页 |
| Chapter 5 Conclusion | 第70-74页 |
| 5.1 Major Findings of the Study | 第70-72页 |
| 5.2 Implication of the Study | 第72页 |
| 5.3 Limitation of the Study and Suggestions for Future Study | 第72-74页 |
| References | 第74-77页 |
| Appendices | 第77-81页 |
| Acknowledgements | 第81-82页 |
| Resume | 第82页 |
