| Acknowledgments | 第1-5页 |
| 摘要 | 第5-6页 |
| Abstract | 第6-8页 |
| Contents | 第8-13页 |
| Abbreviations | 第13-14页 |
| List of Figures | 第14-15页 |
| List of Tables | 第15-17页 |
| Chapter One Introduction | 第17-37页 |
| ·Introduction | 第17-18页 |
| ·Personal Motivation | 第18-20页 |
| ·The Background of This Study | 第20-26页 |
| ·Theoretical Background | 第20-22页 |
| ·ELT in the Chinese Context and the Challenges | 第22-26页 |
| ·The Scope, Purpose and Necessity of This Study | 第26-33页 |
| ·The Scope of This Study | 第26-28页 |
| ·The Purpose of This Study | 第28-30页 |
| ·The Necessity of This Study | 第30-33页 |
| ·Working Definition for This Study | 第33-35页 |
| ·Organization of This Dissertation | 第35-37页 |
| Chapter Two Literature Review | 第37-70页 |
| ·Introduction | 第37页 |
| ·Basic Concepts of SCT | 第37-46页 |
| ·ZPD | 第38-42页 |
| ·Scaffolding | 第42-46页 |
| ·Previous Studies on Scaffolding and ZPD within the Vygotskian Framework | 第46-54页 |
| ·Studies on Scaffolding in Expert-novice Interaction | 第46-50页 |
| ·Studies on ZPD in Expert-novice Interaction | 第50-54页 |
| ·Empirical Studies of Negotiated Interaction | 第54-64页 |
| ·Negotiated Interaction in NS-NS/NS-NNS vs. NNS-NNS Conversation | 第55-57页 |
| ·Classroom-based Research on Negotiated Interaction | 第57-61页 |
| ·Negotiation in Teacher-fronted vs. Group-work Organization | 第61-64页 |
| ·Research on Language Proficiency in Terms ofAccuracy, Complexity and Fluency | 第64-67页 |
| ·Conceptual Framework of This Study | 第67-69页 |
| ·Summary | 第69-70页 |
| Chapter Three Research Methodology | 第70-115页 |
| ·Introduction | 第70-71页 |
| ·Research Questions | 第71-73页 |
| ·Research Ethics | 第73-74页 |
| ·Research Setting and Participants'Selection | 第74-82页 |
| ·Research Setting | 第75-76页 |
| ·Participants'Selection | 第76-82页 |
| ·Research Methods | 第82-96页 |
| ·Classroom Observation and Recording | 第85-87页 |
| ·Interview | 第87-89页 |
| ·Pre-test and Post-test | 第89-90页 |
| ·Questionnaire | 第90-91页 |
| ·Data Collection Procedure of This Study | 第91-93页 |
| ·Trustworthiness of the Data | 第93-96页 |
| ·DataAnalysis and Interpretation | 第96-104页 |
| ·Analysis of Classroom Observation Data | 第96-101页 |
| ·Analysis of Interview Data | 第101-102页 |
| ·Analysis of Questionnaire Data | 第102页 |
| ·Analysis of Pre-test and Post-test Data | 第102-104页 |
| ·Measurement of Students'Oral English Proficiency | 第104-110页 |
| ·The Basic Unit ofAssessing Language Proficiency | 第106-107页 |
| ·Measurement ofAccuracy | 第107-108页 |
| ·Measurement of Complexity | 第108-109页 |
| ·Measurement of Fluency | 第109-110页 |
| ·Research Procedure | 第110-112页 |
| ·Summary | 第112-115页 |
| Chapter Four Qualitative Data Analysis | 第115-142页 |
| ·Introduction | 第115页 |
| ·Analysis of Ms. Wang's Class | 第115-129页 |
| ·Analysis of Responses from Ms. Wang's Interview | 第116-118页 |
| ·Ms. Wang's Teaching Practice | 第118-129页 |
| ·Analysis of Ms. Ma's Class | 第129-137页 |
| ·Analysis of Responses from Ms. Ma's Interview | 第130-132页 |
| ·Ms. Ma's Teaching Practice | 第132-137页 |
| ·Summary of Students' Interview | 第137-140页 |
| ·Students'Background Information of English Learning | 第137-138页 |
| ·Oral English Learning Method | 第138-139页 |
| ·Students'Attempts in Coping with Difficulties in Learning Oral English | 第139页 |
| ·Students'Evaluation of Teachers'Help | 第139-140页 |
| ·Summary | 第140-142页 |
| Chapter Five Quantitative Data Analysis | 第142-164页 |
| ·Introduction | 第142页 |
| ·QuantitativeAnalysis of Classroom Observation | 第142-146页 |
| ·QuantitativeAnalysis of Scaffolding Episodes | 第143页 |
| ·QuantitativeAnalysis of Scaffolding Functions | 第143-146页 |
| ·Report on the Student Questionnaire | 第146-151页 |
| ·General Quantitative Description | 第147-148页 |
| ·Comparing Results of the Two Groups | 第148-151页 |
| ·Analysis of Results from Pre-test and Post-test | 第151-155页 |
| ·The Effectiveness of Teacher-student Negotiated Interaction on Students' Oral English Proficiency | 第155-162页 |
| ·The Changes ofAccuracy | 第155-158页 |
| ·The Changes of Complexity | 第158-160页 |
| ·The Changes of Fluency | 第160-162页 |
| ·Summary | 第162-164页 |
| Chapter Six Findings and Discussions | 第164-181页 |
| ·Introduction | 第164页 |
| ·Findings of the Study | 第164-174页 |
| ·Findings for Research Question | 第164-170页 |
| ·Findings for Research Question | 第170-172页 |
| ·Findings for Research Question | 第172-174页 |
| ·Discussions | 第174-180页 |
| ·Negotiated Interaction, Scaffolding and Language Learning | 第175-177页 |
| ·Effects of Negotiated Interaction on Students'Oral English Proficiency | 第177-179页 |
| ·Teachers' Strategies in Providing Scaffolding During the Negotiated Interaction Process | 第179-180页 |
| ·Summary | 第180-181页 |
| Chapter Seven Conclusions and Implications | 第181-192页 |
| ·Introduction | 第181-182页 |
| ·The Major Findings of This Study | 第182-185页 |
| ·Theoretical Contributions | 第185-187页 |
| ·Pedagogical Implications | 第187-189页 |
| ·Implications for EFL Teachers | 第187-188页 |
| ·Implications for Classroom Language Learning | 第188-189页 |
| ·Limitations of This Study | 第189-191页 |
| ·Recommendations for Further Research | 第191-192页 |
| Bibliography | 第192-211页 |
| Appendix1 Student Interview | 第211-212页 |
| Appendix2 Teacher Interview | 第212-213页 |
| Appendix3 Pre-test and Post-test | 第213-214页 |
| Appendix4 Score Scales | 第214-216页 |
| Appendix5 Student Questionnaire | 第216-219页 |
| Appendix6 Transcription Conventions | 第219-220页 |
| Appendix7 Interview Abstract of Ms. Ma | 第220-221页 |
| Appendix8 Interview Abstract of Ms. Wang | 第221-223页 |
| Appendix9 Sample of Student Interview | 第223-225页 |
