| Acknowledgments | 第1-3页 |
| 中文摘要 | 第3-4页 |
| Abstract | 第4-5页 |
| 中文文摘 | 第5-9页 |
| Synopsis | 第9-15页 |
| Introduction | 第15-19页 |
| Chapter 1 Review of Literature on Vocabulary Acquisition and Involvement Load Hypothesis | 第19-47页 |
| 1.1 The Importance of Vocabulary in SLA | 第19-20页 |
| 1.2 Effective Factors in Vocabulary Acquisition | 第20-21页 |
| 1.3 Incidental/Intentional Learning Versus Implicit/Explicit Learning | 第21-23页 |
| 1.4 The Role of Input in L2 Vocabulary Acquisition | 第23-26页 |
| 1.4.1 Vocabulary Acquisition and Input | 第23页 |
| 1.4.2 Guessing the Words from Context | 第23-24页 |
| 1.4.3 Input Enhancement | 第24-25页 |
| 1.4.4 Input Frequency and Vocabulary Learning | 第25-26页 |
| 1.5 The Role of Output in L2 Vocabulary Acquisition | 第26-27页 |
| 1.6 Difficulties Chinese Middle School Students Experience in Vocabulary Acquisition | 第27-29页 |
| 1.7 Learning Words through Reading Tasks | 第29-31页 |
| 1.8 The Depth of Processing Mode | 第31-34页 |
| 1.9 Involvement Load Hypothesis | 第34-45页 |
| 1.9.1 Involvement Load | 第35-37页 |
| 1.9.2 Task-induced Involvement Load | 第37-40页 |
| 1.9.3 Previous Empirical Studies on Involvement Load Hypothesis | 第40-43页 |
| 1.9.4 Limitations of Previous Studies | 第43-45页 |
| 1.10 Purpose of the Study | 第45-47页 |
| Chapter 2 Experimental Study | 第47-65页 |
| 2.1 Methods | 第47-48页 |
| 2.2 Participants | 第48-49页 |
| 2.3 Materials | 第49-54页 |
| 2.4 Tasks | 第54-56页 |
| 2.5 Procedures | 第56-60页 |
| 2.6 Results | 第60-65页 |
| Chapter 3 Discussion | 第65-71页 |
| 3.1 The Effect of Reading Tasks on the Acquisition of Vocabulary | 第65-68页 |
| 3.1.1 Immediate Effect | 第65-66页 |
| 3.1.2 Delayed Effect | 第66-68页 |
| 3.2 Time Effect on the Retention of Vocabulary | 第68-69页 |
| 3.3 Other Findings in this Study | 第69-71页 |
| Chapter 4 Conclusion, Pedagogical Implications, Limitations of the Study and Recommendations for Future Research | 第71-75页 |
| 4.1 Conclusion | 第71-72页 |
| 4.2 Pedagogical Implications | 第72-73页 |
| 4.3 Limitations of the Study | 第73-74页 |
| 4.4 Recommendations for Future Research | 第74-75页 |
| References | 第75-84页 |
| Appendices | 第84-95页 |
| Appendix A: Reading Comprehension I | 第84-86页 |
| Appendix B: Translation List | 第86-87页 |
| Appendix C: YES-NO Test | 第87-88页 |
| Appendix D: Post-reading Task 1 (Multiple-choice Task for Group 1) | 第88-90页 |
| Appendix E: Post-reading Task 2 (Filling-in Task for Group 2) | 第90-91页 |
| Appendix F: Post-reading Task 3 (Writing Task for Group 3) | 第91-92页 |
| Appendix G: Reading Comprehension II (Reading Task for Group 4) | 第92-94页 |
| Appendix H: Vocabulary Post-test | 第94-95页 |
| 论文使用授权声明 | 第95页 |