| 摘要 | 第1-6页 |
| Abstract | 第6-10页 |
| Index to Figures | 第10-11页 |
| Index to Tables | 第11-12页 |
| Chapter 1 Introduction | 第12-14页 |
| Chapter 2 Voice Onset Time and the Acquisition of Voicing Contrast of Stop Consonants:An Overview | 第14-38页 |
| ·Voice Onset Time: a Brief Survey | 第14-18页 |
| ·The Measure of Voice Onset Time | 第14-16页 |
| ·Articulatory Mechanisms of the Three Stop Categories | 第16-17页 |
| ·Significance of VOT in the Acquisition of Voicing Contrast | 第17-18页 |
| ·Previous Studies on the Acquisition of Voicing Contrast | 第18-35页 |
| ·Review of Previous Studies | 第19-26页 |
| ·Summary of Findings in the Previous Studies | 第26-32页 |
| ·Previous Impressionistic Observations in Mandarin | 第32-35页 |
| ·Aims of the Present Study | 第35-36页 |
| ·Significance of the Present Study | 第36-37页 |
| ·Summary | 第37-38页 |
| Chapter 3 Methodology | 第38-44页 |
| ·Child Data | 第38-41页 |
| ·Subject and Data Collection | 第38-40页 |
| ·Data Processing | 第40页 |
| ·VOT Measurement and Analysis | 第40-41页 |
| ·Criteria for the Acquisition of Voicing Contrast | 第41页 |
| ·Adult Data | 第41-44页 |
| ·Data in Running Speech | 第42页 |
| ·Data in Careful Speech | 第42-44页 |
| Chapter 4 Voicing Contrast Model in Adult Language | 第44-49页 |
| ·Voicing Contrast in Careful Speech | 第44-45页 |
| ·Voicing Contrast in Running Speech | 第45-47页 |
| ·Comparison of VOT Values in the Adult Data | 第47-48页 |
| ·Conventions for the Phonetic Regions | 第48-49页 |
| Chapter 5 Acquisition of Voicing Contrast by LSY | 第49-73页 |
| ·Phase I: the Preliminary Stage of Voicing Contrast | 第49-57页 |
| ·Phase II: the Primary Stage of Voicing Contrast | 第57-60页 |
| ·Phase III: the Refinement Stage of Voicing Contrast | 第60-71页 |
| ·The First Round of Refinement | 第64-66页 |
| ·The Second Round of Refinement | 第66-69页 |
| ·The VOT Fluctuation of the Voiceless Unaspirated Stops | 第69-70页 |
| ·Summary of VOT Characteristics in Phase III | 第70-71页 |
| ·Summary | 第71-73页 |
| Chapter 6 Discussion | 第73-81页 |
| ·The Three-Stage Model of Acquisition | 第73-76页 |
| ·Three-Stage Model: Evidence from Our Data | 第73-75页 |
| ·What Is Beyond VOT Fluctuation? | 第75-76页 |
| ·The Voicing Lead Tokens in Child’s Production | 第76-78页 |
| ·VOT Production in Early Stage | 第78-79页 |
| ·The Age of the Acquisition of Voicing Contrast | 第79-81页 |
| Chapter 7 Conclusions and Limitations | 第81-84页 |
| ·Conclusions of the Present Study | 第81-83页 |
| ·Limitations | 第83-84页 |
| References | 第84-89页 |
| Acknowledgments | 第89-91页 |
| Appendix A 攻读学位期间所发表的学术论文目录 | 第91-92页 |
| Appendix B Spectrograms and Waveforms for the Three Stop Categories | 第92-94页 |
| Appendix C Sample of Raw Data for LSY | 第94-95页 |
| Appendix D Word List for Adult Caretaker in Careful Speech | 第95-97页 |
| Appendix E VOT Distribution of Stop Tokens by LSY | 第97-101页 |
| Appendix F 详细中文摘要 | 第101-104页 |
