| ACKNOWLEDGEMENTS | 第9-10页 |
| ABSTRACT | 第10-11页 |
| 摘要 | 第12-18页 |
| Abbreviations | 第18-19页 |
| CHAPTER I INTRODUCTION | 第19-24页 |
| 1.1 Background of the Study | 第19-21页 |
| 1.2 Objectives and Significance of the Study | 第21-22页 |
| 1.3 Structure of the Thesis | 第22-24页 |
| CHAPTER II LITERATURE REVIEW | 第24-41页 |
| 2.1 Previous Studies on Vocabulary Acquisition and the Strategies | 第24-27页 |
| 2.1.1 Previous Studies on Vocabulary Acquisition | 第24页 |
| 2.1.2 Previous Studies on Incidental Vocabulary Acquisition | 第24-25页 |
| 2.1.3 Definition of Incidental Vocabulary Acquisition | 第25-27页 |
| 2.2 Previous Studies on Vocabulary Acquisition Strategies, Incidental Vocabulary Acquisition Strategies and IVA in Reading | 第27-32页 |
| 2.2.1 Vocabulary Acquisition Strategies | 第27-29页 |
| 2.2.2 Incidental Vocabulary Acquisition Strategies | 第29-30页 |
| 2.2.3 Incidental Vocabulary Acquisition in Reading | 第30-32页 |
| 2.3 Previous Studies on Input Enhancement and Task-based Strategy | 第32-36页 |
| 2.3.1 Input Enhancement and Input Enhancement in Reading | 第32-35页 |
| 2.3.2 Task-based Strategy in Incidental Vocabulary Acquisition and in Incidental Vocabulary Acquisition in Reading | 第35-36页 |
| 2.4 Theoretical Foundations of Input Enhancement and Task-based Strategy | 第36-41页 |
| 2.4.1 Noticing Hypothesis | 第36-38页 |
| 2.4.2 Involvement Load Hypothesis | 第38-41页 |
| CHAPTER III RESEARCH METHODOLOGY | 第41-46页 |
| 3.1 Research Questions | 第41页 |
| 3.2 Participants | 第41-42页 |
| 3.3 Instruments | 第42-43页 |
| 3.3.1 Vocabulary Level Test | 第42页 |
| 3.3.2 Reading Test | 第42-43页 |
| 3.3.3 Immediate and Delayed Vocabulary Tests | 第43页 |
| 3.3.4 Questionnaire | 第43页 |
| 3.4 Research Procedures | 第43-44页 |
| 3.4.1 Vocabulary Level Test | 第43-44页 |
| 3.4.2 The Reading Tests | 第44页 |
| 3.4.3 Questionnaire | 第44页 |
| 3.5 Data Collection and Analysis | 第44-46页 |
| CHAPTER IV RESULTS AND DISCUSSION | 第46-66页 |
| 4.1 Results of the Study | 第46-63页 |
| 4.1.1 The Result of the Pre-test | 第46-47页 |
| 4.1.2 Results of the Immediate Vocabulary Acquisition | 第47-51页 |
| 4.1.3 Results of the Delayed Vocabulary Acquisition | 第51-55页 |
| 4.1.4 Results of Incidental Vocabulary Acquisition with Different Vocabulary Acquisition Strategies | 第55-60页 |
| 4.1.5 Discussions on the Questionnaire | 第60-63页 |
| 4.2 Discussion on the Effects of Input Enhancement and Task-based Strategy | 第63-66页 |
| 4.2.1 Effects of Input Enhancement | 第63-64页 |
| 4.2.2 Effects of Task-Based Strategy | 第64-66页 |
| CHAPTER V CONCLUSIONS | 第66-70页 |
| 5.1 Major Findings of the Study | 第66-67页 |
| 5.2 Limitations of the Study | 第67-68页 |
| 5.3 Pedagogical Implications of the Study | 第68-69页 |
| 5.4 Suggestions for Further Study | 第69-70页 |
| REFERENCES | 第70-78页 |
| Appendix I Vocabulary Level Test | 第78-88页 |
| Appendix II Three Versions of the Reading Material | 第88-93页 |
| Appendix III Immediate After-reading Test | 第93-94页 |
| Appendix IV Delayed After-reading Test | 第94-95页 |
| Appendix V Questionnaire | 第95-96页 |
| Appendix VI Raw Data of the Tests | 第96-99页 |
