| ACKNOWLEDGEMENTS | 第4-5页 |
| ABSTRACT | 第5-7页 |
| 中文摘要 | 第8-13页 |
| List of Tables and Figures | 第13-14页 |
| Chapter One INTRODUCTION | 第14-19页 |
| 1.1 Background of the Study | 第14-16页 |
| 1.2 Need of the Study | 第16-17页 |
| 1.3 Organization of the Study | 第17-19页 |
| Chapter Two LITERATURE REVIEW | 第19-31页 |
| 2.1 The nature of incidental vocabulary acquisition | 第19-20页 |
| 2.2 Theories concerning L2 incidental vocabulary acquisition | 第20-24页 |
| 2.2.1 The input hypothesis | 第20-21页 |
| 2.2.2 The involvement load hypothesis | 第21-23页 |
| 2.2.3 The schema theory and contextual availability theory | 第23-24页 |
| 2.3 Empirical studies of the efiects of input mode and contextual richness on L2 incidental vocabulary acquisition | 第24-29页 |
| 2.3.1 Previous studies on effects of input mode on incidental L2 vocabulary acquisition | 第24-26页 |
| 2.3.2 Previous studies on effects of contextual richess L2 vocabulary acquisition | 第26-29页 |
| 2.4 Limitations in the previous studies | 第29-31页 |
| Chapter Three METHODOLOGY | 第31-42页 |
| 3.1 Research Questions | 第31-32页 |
| 3.2 Experimental Design | 第32页 |
| 3.3 Operationalizing Variables | 第32-35页 |
| 3.3.1 Input mode | 第32页 |
| 3.3.2 Contextual richness | 第32-34页 |
| 3.3.3 L2 incidental vocabulary acquisition | 第34-35页 |
| 3.4 Subjects | 第35-36页 |
| 3.5 Materials | 第36-39页 |
| 3.5.1 Target Words and Levels of Contextual Richness | 第36-38页 |
| 3.5.2 Input Materials | 第38-39页 |
| 3.6 Experimental Procedures | 第39-41页 |
| 3.6.1 The Pilot Study | 第39-40页 |
| 3.6.2 The Main Study | 第40-41页 |
| 3.7 Scoring scheme and interrater reliability | 第41-42页 |
| Chapter Four RESULTS and DISCUSSION | 第42-61页 |
| 4.1 Results | 第42-52页 |
| 4.1.1 Effects of input mode and contextual richness on EFL passive vocabulary recognition | 第42-47页 |
| 4.1.1.1 Descriptive statistics for EFL passive vocabulary recognition | 第43-45页 |
| 4.1.1.2 Assumptions of a mixed ANOVA on EFL passive vocabulary recognition | 第45-46页 |
| 4.1.1.3 A mixed ANOVA for EFL passive vocabulary recognition | 第46-47页 |
| 4.1.2 Effects of input mode and contextual richness on EFL active vocabulary recognition | 第47-52页 |
| 4.1.2.1 Descriptive statistics for EFL active vocabulary recognition | 第47-50页 |
| 4.1.2.2 Assumptions of a mixed ANOVA on EFL active vocabulary recognition | 第50-51页 |
| 4.1.2.3 A mixed ANOVA for EFL active vocabulary recognition | 第51-52页 |
| 4.2 Discussion | 第52-61页 |
| 4.2.1 The main effects of input mode on EFL passive and active vocabulary recognition | 第53-55页 |
| 4.2.2 The main effects of contextual richness on EFL passive and active vocabulary recognition | 第55-57页 |
| 4.2.3 The interactive effect between input mode and contextual richness on EFL passive and active vocabulary recognition | 第57-61页 |
| Chapter Five CONCLUSION | 第61-66页 |
| 5.1 Major findings | 第61-62页 |
| 5.2 Implications | 第62-64页 |
| 5.2.1 Theoretical Implications | 第62-63页 |
| 5.2.2 Pedagogical implications | 第63-64页 |
| 5.3 Limitations and suggestions | 第64-66页 |
| REFERENCES | 第66-72页 |
| Appendix Ⅰ Reading Comprehension Test | 第72-77页 |
| Appendix Ⅱ Listening Comprehension Test | 第77-79页 |
| Appendix Ⅲ Mini Dictionary | 第79-81页 |
| Appendix Ⅳ Test 1 of English Vocabulary Acquisition | 第81-83页 |
| Appendix Ⅴ Test 2 of English Vocabulary Acquisition | 第83-85页 |
