| Acknowledgements | 第4-5页 |
| Abstract | 第5-6页 |
| 摘要 | 第7-9页 |
| Table of Contents | 第9-11页 |
| List of Figures and Tables | 第11-12页 |
| Chapter One Introduction | 第12-16页 |
| 1.1 Background of the Study | 第12-14页 |
| 1.2 Aim and Significance of the Thesis | 第14-15页 |
| 1.3 The Organization of the Thesis | 第15-16页 |
| Chapter Two Literature Review | 第16-30页 |
| 2.1 Definitions of Key Terms | 第16-23页 |
| 2.1.1 Main features of working memory | 第16-18页 |
| 2.1.2 Working Memory Capacity | 第18-19页 |
| 2.1.3 Main points about listening comprehension | 第19-21页 |
| 2.1.4 Main points about incidental vocabulary acquisition | 第21-23页 |
| 2.2 Theoretical Arguments | 第23-25页 |
| 2.2.1 Theories on working memory | 第23-24页 |
| 2.2.2 Theories on incidental vocabulary acquisition | 第24-25页 |
| 2.3 Review of Empirical Studies at home and abroad | 第25-29页 |
| 2.3.1 Empirical studies on working memory and listening comprehension | 第25-27页 |
| 2.3.2 Empirical studies on listening comprehension and incidental vocabulary acquisition | 第27-29页 |
| 2.4 Summary | 第29-30页 |
| Chapter Three Research Design | 第30-38页 |
| 3.1 Research Questions | 第30页 |
| 3.2 Hypotheses | 第30-31页 |
| 3.3 Working Memory Test Design | 第31-33页 |
| 3.3.1 Subjects | 第31-32页 |
| 3.3.2 Materials | 第32页 |
| 3.3.3 Procedures | 第32-33页 |
| 3.3.4 Grading of working memory span | 第33页 |
| 3.4 Listening Comprehension Test Design | 第33-35页 |
| 3.4.1 Subjects | 第34页 |
| 3.4.2 Materials | 第34-35页 |
| 3.4.3 Procedures | 第35页 |
| 3.4.4 Grading of listening comprehension | 第35页 |
| 3.5 Incidental Vocabulary Acquisition Test Design | 第35-36页 |
| 3.5.1 Subjects | 第35页 |
| 3.5.2 Materials | 第35-36页 |
| 3.5.3 Procedures | 第36页 |
| 3.5.4 Grading of incidental vocabulary acquisition | 第36页 |
| 3.6 Summary | 第36-38页 |
| Chapter Four Results and Discussion | 第38-47页 |
| 4.1 The grouping of high and low working memory group | 第38-39页 |
| 4.2 The Role of Working Memory Span in Listening Comprehension | 第39-40页 |
| 4.3 The Role of Working Memory Span in Incidental Vocabulary Acquisition | 第40-42页 |
| 4.3.1 The relationship between listening comprehension and incidental vocabulary acquisition | 第40-41页 |
| 4.3.2 The relationship between working memory and incidental vocabulary acquisition through listening comprehension | 第41-42页 |
| 4.4 Discussion | 第42-46页 |
| 4.4.1 The effect of working memory on listening comprehension | 第42-44页 |
| 4.4.2 The effect of working memory on incidental vocabulary acquisition through listening comprehension | 第44-46页 |
| 4.5 Summary | 第46-47页 |
| Chapter Five Conclusion | 第47-51页 |
| 5.1 Findings of the Study | 第47-48页 |
| 5.2 Implications for Second Language Learning and Teaching | 第48-49页 |
| 5.3 Limitation of the Study | 第49页 |
| 5.4 Suggestions for Further Study | 第49-51页 |
| References | 第51-55页 |
| Appendix Ⅰ:The Instruction for Working Memory Test | 第55-56页 |
| Appendix Ⅱ:Listening Comprehension Test | 第56-58页 |
| Appendix Ⅲ:Target Words for Listening Comprehension | 第58-59页 |
| Appendix Ⅳ:Incidental Vocabulary Acquisition Test | 第59-60页 |
