| Acknowledgement | 第4-5页 |
| 论文摘要 | 第5-6页 |
| Abstract | 第6页 |
| 1. Introduction | 第11-17页 |
| 1.1 Research Background | 第11-13页 |
| 1.2 Significance of the Present Research | 第13-15页 |
| 1.3 Organization of the Thesis | 第15-17页 |
| 2. Literature Review | 第17-43页 |
| 2.1 Second Language Vocabulary Learning | 第17-19页 |
| 2.2 Incidental Vocabulary Learning | 第19-22页 |
| 2.3 Possible Factors Influencing Incidental Vocabulary Learning | 第22-43页 |
| 2.3.1 Context Factors | 第23-24页 |
| 2.3.2 Learner Factors | 第24-25页 |
| 2.3.3 Input Factors | 第25-36页 |
| 2.3.4 Intervention Factors | 第36-43页 |
| 3. Research Methodology | 第43-56页 |
| 3.1 Research Design and Research Hypothesis | 第43-44页 |
| 3.2 Participants | 第44-45页 |
| 3.3 Materials | 第45-49页 |
| 3.3.1 Audio-visual Stimuli | 第46-48页 |
| 3.3.2 Reading Stimuli | 第48页 |
| 3.3.3 Word List | 第48-49页 |
| 3.4 Intervention Tasks | 第49-51页 |
| 3.4.1 Intervention Task with Low Involvement Load | 第50页 |
| 3.4.2 Intervention Task with High Involvement Load | 第50-51页 |
| 3.5 Vocabulary Test | 第51页 |
| 3.6 Procedure | 第51-54页 |
| 3.7 Data Analysis | 第54-56页 |
| 4. Results | 第56-86页 |
| 4.1 Result for Research Question 1 | 第56-57页 |
| 4.2 Result for Research Question 2 | 第57-74页 |
| 4.2.1 Comparison in Immediate Post-test | 第57-61页 |
| 4.2.2 Comparison in Delayed Post-test | 第61-64页 |
| 4.2.3 Comparison of the Performance of Audio-visual and Reading Input in Immediate and Delayed Post-test | 第64-74页 |
| 4.3 Result for Research Question 3 | 第74-86页 |
| 4.3.1 Comparison in Immediate Post-test | 第74-76页 |
| 4.3.2 Comparison in Delayed Post-test | 第76-78页 |
| 4.3.3 Comparison of the Performance of Groups with Different Types of Interventionin Immediate and Delayed Post-test | 第78-86页 |
| 5. Discussion | 第86-93页 |
| 5.1 Audio-visual Input, Reading Input and Incidental Vocabulary Learning | 第86-90页 |
| 5.1.1 Audio-visual Input, Reading Input and Vocabulary Learning | 第86-88页 |
| 5.1.2 Audio-visual Input, Reading Input and Vocabulary Retention | 第88-90页 |
| 5.2 Intervention and Incidental Vocabulary Learning | 第90-93页 |
| 5.2.1 Intervention and Incidental Vocabulary Learning and Long-term Memorizing ofthe Vocabulary | 第90-91页 |
| 5.2.2 The Involvement Load of the Intervention Task and Incidental VocabularyLearning and Long-term Memorizing of the Vocabulary | 第91-92页 |
| 5.2.3 The Involvement Load of the Intervention Tasks and Vocabulary Retention | 第92-93页 |
| 6. Conclusion | 第93-98页 |
| 6.1 Major Findings of the Study | 第93-94页 |
| 6.2 Pedagogical Implications | 第94-95页 |
| 6.3 Limitations and Suggestion for Future Studies | 第95-98页 |
| Reference | 第98-107页 |
| Appendix Ⅰ. Stimuli (Written Version) | 第107-108页 |
| Appendix Ⅱ. Word List | 第108-109页 |
| Appendix Ⅲ. Low Involvement Load Intervention TaskTest Paper | 第109-111页 |
| Appendix Ⅳ High Involvement Load Intervention Task Test Paper | 第111-112页 |
| Appendix Ⅴ Target Word Test Paper | 第112页 |
