封面
声明
致谢
英文摘要
中文摘要
目录
Chapter 1 Introduction
1.1 Background of the study
1.2 Objective of the study
1.3 Research methodology and data collection
1.4 Structure of the paper
Chapter 2 Literature Review
2.1 Previous studies on modality abroad
2.2 Previous studies on modality at home
Chapter 3 Methodology and Data Collection
3.1 Data source and collection
3.2 Research instruments
Chapter 4 Data Analysis and Discussion
4.1 Comparison of modal verbs according to types
4.2 Comparison of modal verbs according to values
Chapter 5 Conclusion
5.1 Major findings of the study
5.2 Significance of the study
5.3 Limitations and suggestions of the study
参考文献