| 摘要 | 第1-6页 |
| ABSTRACT | 第6-11页 |
| Chapter 1 Introduction | 第11-16页 |
| ·Importance of the Modal Verbs and Modality | 第11-12页 |
| ·Purpose of the Present Research | 第12页 |
| ·Choice of Topic | 第12-13页 |
| ·Research Method | 第13页 |
| ·Originality of the Research | 第13-14页 |
| ·Layout of the Thesis | 第14-16页 |
| Chapter 2 Literature Review | 第16-32页 |
| ·Theoretical Background | 第16-28页 |
| ·Corpus Linguistic and Grammar | 第16-19页 |
| ·The Features of the Use of Modal Verbs in Legal English | 第19-21页 |
| ·Definition of Mood,Modality and Modal Verbs | 第21-23页 |
| ·Modality Theory in Functional Grammar of Halliday | 第23-26页 |
| ·Modality Expression and Modality Types | 第26-28页 |
| ·Previous Studies of Modality on Modal Verbs | 第28-32页 |
| Chapter 3 Research Methodology | 第32-38页 |
| ·The Copora Used in Study | 第32-33页 |
| ·Software Packages Used in the Study | 第33-36页 |
| ·AntConc | 第33-34页 |
| ·Statistical Package for Social Science(SPSS) | 第34-35页 |
| ·Visual FoxPro | 第35-36页 |
| ·Data Collection and Processing Procedures | 第36-38页 |
| ·Data Collection | 第36页 |
| ·Processing Procedures | 第36-38页 |
| Chapter 4 Results and Analysis | 第38-59页 |
| ·Overall Distribution of MVs in Maritime Law English and BROWN | 第38-41页 |
| ·Comparison of Word Coverage between the Maritime Law English and BROWN Corpus | 第38-39页 |
| ·Comparison of Frequency between the Maritime Law English and BROWN Corpus | 第39-41页 |
| ·The Analysis of the Results from Modality Types | 第41-50页 |
| ·The Results of Comparing MVs according to Modalisation | 第41-42页 |
| ·The Results of Comparing MVs according to Modulation | 第42-48页 |
| ·The Results of Comparing MVs according to Marginal Modals | 第48-50页 |
| ·The Analysis of the Results from Modality Values | 第50-55页 |
| ·Characteristics of Modal Verbs in Maritime Law English | 第51-53页 |
| ·Characteristics of Modal Verbs in the BROWN Corpus | 第53-54页 |
| ·The Results of Comparing the Total Numbers of MVs | 第54页 |
| ·Results of Tests | 第54-55页 |
| ·Testing of Modality Values | 第55-57页 |
| ·Limitations of the Modality Studies on Modal Verbs | 第57-59页 |
| Chapter 5 Conclusions | 第59-62页 |
| ·Major Findings of the Study | 第59-60页 |
| ·Implications | 第60页 |
| ·Limitations and Suggestions for Future Research | 第60-62页 |
| ·The Limitations of the Research | 第60页 |
| ·Some Suggestions for Future Research | 第60-62页 |
| References | 第62-67页 |
| Appendix | 第67-74页 |
| Appendix1 Types of Modal Verbs | 第67-68页 |
| Appendix2 Frequencies of Modal Verbs in BROWN Corpus | 第68-70页 |
| Appendix3 Frequencies of Modal Verbs in Maritime Law English | 第70-72页 |
| Appendix4 Shall Used in Maritime Law English Articles with the Third Person | 第72-74页 |
| ACKNOWLEDGEMENTS | 第74-75页 |
| Resume | 第75-76页 |
