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藏语语者美式英语双元音的声学特征及影响因素分析

摘要第4-5页
Abstract第5-6页
List of Abbreviations第11-12页
Introduction第12-15页
Chapter 1 Literature Review第15-24页
    1.1 Studies on Acoustic Features of English Diphthongs第15-17页
    1.2 Studies on the Production of English Diphthongs by L2 Learners第17-19页
    1.3 Studies on the Influencing Factors of English Diphthong Production第19-22页
        1.3.1 Linguistic Factors第19-21页
        1.3.2 Non-linguistic Factors第21-22页
    1.4 Limitations of Previous Studies第22-24页
Chapter 2 Theoretical Framework第24-30页
    2.1 Speech Learning Model第24-28页
        2.1.1 Equivalence Classification第24-25页
        2.1.2 Postulates and Hypotheses第25-28页
    2.2 Advantages of SLM over Other Theories第28-30页
Chapter 3 An Empirical Study of American English Diphthongs by U-Tsang TibetanSpeakers第30-37页
    3.1 Vowel Systems in Tibetan, Mandarin and English第30-32页
    3.2 Research Design第32-34页
        3.2.1 Subjects第32-33页
        3.2.2 Materials第33-34页
        3.2.3 Procedure第34页
    3.3 Data Collection第34-37页
Chapter 4 Data Analysis, Findings and Discussion第37-55页
    4.1 Acoustic Features of Diphthong Duration第37-41页
        4.1.1 Comparison between U-Tsang Tibetan and English Speakers第37-38页
        4.1.2 Comparison within U-Tsang Tibetan Speakers第38-40页
        4.1.3 Effects of Gender and English Proficiency第40-41页
    4.2 Acoustic Features of Diphthongal Onset and Offset第41-48页
        4.2.1 Formant Frequencies第41-45页
        4.2.2 Positional Relationships with Monophthongs第45-47页
        4.2.3 Effects of Gender and English Proficiency第47-48页
    4.3 Acoustic Features of Formant Trajectories第48-53页
        4.3.1 U-Tsang Tibetan Speakers of Different Genders第49-51页
        4.3.2 U-Tsang Tibetan Speakers with Different English Proficiency第51-53页
    4.4 Summary第53-55页
Conclusion第55-57页
References第57-65页
Acknowledgements第65-66页

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