| Acknowledgements | 第1-5页 |
| Abstract | 第5-7页 |
| 摘要 | 第7-12页 |
| Chapter One Introduction | 第12-18页 |
| ·Background of Lead-in in Subject Teaching | 第12-14页 |
| ·Necessity of Lead-in in English Class | 第14-15页 |
| ·Research Questions | 第15-16页 |
| ·Research Purpose and Methods | 第16页 |
| ·Framework of This Paper | 第16-18页 |
| Chapter Two Literature review | 第18-26页 |
| ·General Introduction to Lead-in | 第18-20页 |
| ·Definition of Lead-in | 第18-19页 |
| ·The Function and Purposes of Lead-in | 第19-20页 |
| ·Researches on Lead-in at Home and Abroad | 第20-23页 |
| ·Studies about Lead-in Abroad | 第20-22页 |
| ·Studies about Lead-in in China | 第22-23页 |
| ·Logical Expansion Graph and Discreet Presentation | 第23-25页 |
| Summary | 第25-26页 |
| Chapter Three Theoretical Foundations and Current State of Classroom Lead-ins | 第26-52页 |
| ·Relevant Theoretical Foundations | 第26-36页 |
| ·Psychological Basis | 第26-29页 |
| ·Pedagogical Basis | 第29-31页 |
| ·Esthetic Basis | 第31-32页 |
| ·Basic Structure of English Classroom Teaching | 第32-33页 |
| ·Main Factors Affecting Classroom Teaching | 第33-36页 |
| ·Current Situation of Classroom Teaching | 第36-50页 |
| ·Junior Middle School Students’ Learning Features | 第37-43页 |
| ·Reasons for the Failures of Lead-in | 第43-50页 |
| Summary | 第50-52页 |
| Chapter Four Research Design | 第52-64页 |
| ·Research Methods | 第52-53页 |
| ·Subjects | 第53页 |
| ·Instruments | 第53-57页 |
| ·Questionnaire | 第53-55页 |
| ·Tests | 第55-57页 |
| ·Classroom Observations | 第57页 |
| ·Research Procedure | 第57-64页 |
| ·Pre-test | 第57-58页 |
| ·The Questionnaire | 第58-59页 |
| ·Post-test | 第59页 |
| ·Implementation of Lead-in in English Classroom Teaching | 第59-64页 |
| Chapter Five Results and Analyses | 第64-80页 |
| ·Results and Analyses of Questionnaires (students) | 第64-72页 |
| ·Results and Analyses of the First Questionnaire before and after the Experiment | 第64-68页 |
| ·Results and Analyses of the Second Questionnaire | 第68-72页 |
| ·Results and Analysis of the Two Tests | 第72-77页 |
| ·Data Analysis of the Pre-test | 第72-73页 |
| ·Data Analysis of the Post-test | 第73-77页 |
| ·Results and Analysis of the Classroom Observation | 第77页 |
| ·Summary | 第77-80页 |
| Chapter Six Conclusion | 第80-86页 |
| ·Summary of the Research | 第80-82页 |
| ·Implications for lead-ins in English Classroom Teaching | 第82-83页 |
| ·Limitation and Suggestions for Further Research | 第83-86页 |
| Bibliography | 第86-90页 |
| Appendix 1 | 第90-92页 |
| Appendix 2 | 第92页 |
