| Acknowledgements | 第1-7页 |
| 摘要 | 第7-9页 |
| ABSTRACT | 第9-13页 |
| Chapter One Introduction | 第13-16页 |
| ·Background | 第13-14页 |
| ·Purpose of the Study | 第14-15页 |
| ·Organization of the Thesis | 第15-16页 |
| Chapter two Literature Review | 第16-42页 |
| ·Features of Spontaneous English Speech | 第16-20页 |
| ·Disfluency | 第20-29页 |
| ·Definition of Disfluency | 第20-22页 |
| ·Factors Affecting the Occurrence of Disfluencies | 第22-24页 |
| ·Classification of Disfluency | 第24-29页 |
| ·Pauses | 第24-25页 |
| ·Repeats | 第25-27页 |
| ·Self-repairs | 第27-29页 |
| ·Cognitive Accounts for Disfluency in Speech Production | 第29-42页 |
| ·Investigation of Disfluency from Levelt's Speech Production Model | 第29-34页 |
| ·Levelt's Speech Production Model | 第30-32页 |
| ·How do Speech Disfluencies Take Place | 第32-33页 |
| ·A Comparison of Speech Production between L1 and L2 | 第33-34页 |
| ·Investigation of Disfluency from the Interlanguage Theory | 第34-42页 |
| ·Characteristics of the Interlanguage | 第35-36页 |
| ·Elements for Fossilization | 第36-40页 |
| ·Disfluency in the Interlanguage Continuum | 第40-42页 |
| Chapter Three Experiment Design | 第42-47页 |
| ·The Selection of Topics | 第42-43页 |
| ·The Selection of Subjects | 第43页 |
| ·The Collection of Data | 第43-44页 |
| ·The Treatment of Data | 第44-47页 |
| Chapter Four Analysis of the Results | 第47-60页 |
| ·An Overall Picture of Disfluency in both Naitve Speakers and Advanced Non-native Speakers | 第47-48页 |
| ·Analysis of Fillers | 第48-52页 |
| ·Analysis of Repeats | 第52-53页 |
| ·Analysis of Self-repairs | 第53-55页 |
| ·A Comparison of Error Repairs and Errors not Repaired | 第55-60页 |
| Chapter Five Conclusion | 第60-64页 |
| ·Summery | 第60页 |
| ·Pedagogic Implications | 第60-62页 |
| ·Limitations and Suggestions for Further Research | 第62-64页 |
| Bibliography | 第64-67页 |
| Appendix A: Sample B2 | 第67-69页 |
