声明
Chapter 1 Introduction
1.1 Research background
1.2 Purpose and Significance of the Study
1.3 Organization of the Thesis
Chapter 2 Literature Review
2.1 Grammaticalization
2.2 Discourse marker
2.3 Studies on discourse marker I mean
2.4 Summary
Chapter 3 Research Methodology
3.1 Research questions
3.2 Data collection and research procedure
3.3 Summary
Chapter 4 Analysis on the Path, Mechanisms and Features of Grammaticalization of I mean
4.1 Grammaticalization Path of I mean
4.2 Mechanisms in the Grammaticalization of I mean
4.3 Features presented in the Grammaticatlization of I mean
4.4 Summary
Chapter 5 Conclusion
5.1 Major findings of the study
5.2 Theoretical and Practical significance of the Study
5.3 Limitations of the study and Suggestions for Future Research
参考文献
致谢