文摘
英文文摘
Acknowledgements
List of Tables
Chapter One INTRODUCTION
1.1 Research Background
1.2 Theoretical Framework
1.2.1 Variation study
1.2.2 Real time study
1.3 Research Data and Method
1.4 Thesis Structure
Chapter Two LITERATURE REVIEW
2.1 Definition of Key Terms
2.1.1 Linguistic variables
2.1.2 Linguistic variant vs. linguistic variable
2.1.3 Nasality
2.1.4 Speech community
2.1.5 Stronger constraint and weaker constraint
2.2 Related Nasal Variation Studies
2.2.1 Xu's (1987)
2.2.2 Zhu's (2002)
2.3 Two Problems to be Solved
Chapter Three RESEARCH DESIGN
3.1 Subjects
3.2 Methodology
3.2.1 Field Survey
3.2.2 Goldvarb
3.3 Data Processing
3.3.1 Variable rule analysis
3.3.2 Social information of subjects
3.3.3 Transcription
Chapter Four INTERPRETATION OF NASAL VARIATON
4.1 Intra-lingual Interpretation
4.1.1 Vowel nasalization
4.1.2 Final Nasal Consonant Deletion
4.1.3 Comparison of variation range
4.2 Extra-lingual Interpretation
4.2.1 Vowel nasalization
4.2.2 Consonant deletion
4.2.3 Comparison of variation range
Chapter Five COMPARISON OF THE RESULTS IN 1987 AND 2010
5.1 Internal Constraint Patterns
5.2 Social Constraint Patterns
Chapter Six Conclusion
6.1 Summary of Major Findings
6.2 Implications of the Research
6.3 Limitations of the Study
REFERENCES
APPENDIX
