| Acknowledgements | 第5-6页 |
| Abstract | 第6-8页 |
| 摘要 | 第9-14页 |
| List of Abbreviations | 第14-15页 |
| Chapter One Introduction | 第15-21页 |
| 1.1 Research Background of Lead-in Activities | 第15-16页 |
| 1.2 Purpose and Significance of the Study | 第16-19页 |
| 1.3 Overall Structure of the Thesis | 第19-21页 |
| Chapter Two Literature Review | 第21-48页 |
| 2.1 Researches on Lead-in Activities at Home and Abroad | 第21-35页 |
| 2.1.1 Studies about Lead-in Activities Abroad | 第21-25页 |
| 2.1.2 Studies about Lead-in Activities at Home | 第25-35页 |
| 2.2 Researches on Teachers’ Roles at Home and Abroad | 第35-44页 |
| 2.2.1 Studies about Teachers’ Roles Abroad | 第36-37页 |
| 2.2.2 Studies about Teachers’ Roles in China | 第37-39页 |
| 2.2.3 Teachers’ Roles in Lead-in Activities | 第39-44页 |
| 2.3 Theoretical Basis | 第44-47页 |
| 2.3.1 Krashen’ Input Hypothesis | 第44-45页 |
| 2.3.2 D. Ausubel’s Cognitive Assimilation Theory | 第45-46页 |
| 2.3.3 Jean Piaget’s Assimilation and Accommodation Theory | 第46-47页 |
| 2.4 Comments on the Previous Studies | 第47-48页 |
| Chapter Three Research Design | 第48-51页 |
| 3.1 Research Questions | 第48页 |
| 3.2 Research Participants | 第48-49页 |
| 3.3 Research Instruments | 第49-50页 |
| 3.4 Research Procedure | 第50-51页 |
| 3.4.1 Collection of Data and Text | 第50页 |
| 3.4.2 Basic Procedures of Study | 第50-51页 |
| Chapter Four Results and Analysis | 第51-78页 |
| 4.1 Analysis of Lead-in Activities in Demonstration English Classes | 第51-58页 |
| 4.2 Strategies of Lead-in Activities in Demonstration English Classes | 第58-66页 |
| 4.3 Teachers’ Roles of Lead-in Activities in Demonstration English Classes | 第66-72页 |
| 4.4 Students’ Classroom Involvement of Lead-in Activities in DemonstrationEnglish Classes | 第72-78页 |
| Chapter Five Conclusion | 第78-85页 |
| 5.1 Summary of the Study | 第78-80页 |
| 5.2 Implications for Lead-in Activities of Junior High English Teaching | 第80-83页 |
| 5.3 Limitations of the Study | 第83-85页 |
| References | 第85-88页 |
