| 摘要（Abstract in Chinese） | 第1-6页 |
| Abstract | 第6-7页 |
| Acknowledgements | 第7-11页 |
| Introduction | 第11-15页 |
| Chapter 1 Literature Review | 第15-33页 |
| ·Vocabulary: a serious linguistic obstacle to language learners | 第15-17页 |
| ·Vocabulary and reading: word learning occurs incidentally through 1eading | 第17-18页 |
| ·Incidental vocabulary acquisition | 第18-21页 |
| ·Definition | 第18-19页 |
| ·Incidental vs. intentional learning | 第19-20页 |
| ·Implicit vs. explicit learning | 第20-21页 |
| ·Vocabulary size for incidental learning | 第21-23页 |
| ·Consciousness, noticing and attention | 第23-25页 |
| ·Consciousness and Schmidt’s Noticing Hypothesis | 第23-24页 |
| ·Attention: essential for language learning | 第24-25页 |
| ·The Depth of Processing Model | 第25-26页 |
| ·Involvement Load Hypothesis | 第26-28页 |
| ·Difficulties Chinese students experience in vocabulary acquisition | 第28-29页 |
| ·Previous experimental study on Involvement Load Hypothesis | 第29-33页 |
| Chapter 2 Experimental Study | 第33-41页 |
| ·Purpose of the present study | 第33页 |
| ·Research questions and hypotheses | 第33-34页 |
| ·Participants | 第34-36页 |
| ·Instruments | 第36-38页 |
| ·Reading passages and target words for the three groups | 第36-37页 |
| ·Tasks | 第37-38页 |
| ·Administration of the tests | 第38-39页 |
| ·Interview with participants | 第39页 |
| ·Scoring vocabulary test papers | 第39-40页 |
| ·Validity and reliability | 第40-41页 |
| Chapter 3 Results and Discussion | 第41-61页 |
| ·Results related to Hypothesis 1 | 第41-52页 |
| ·Descriptive statistics for scores of the three tasks in immediate and delayed vocabulary tests | 第42-46页 |
| ·Multiple (between groups) comparisons of task effect in immediate and delayed vocabulary tests | 第46-50页 |
| ·Loss of vocabulary gains between two vocabulary tests in each task in each group | 第50-52页 |
| ·Results related to Hypothesis 2 | 第52-57页 |
| ·Main findings of the study | 第57-61页 |
| ·Findings concerning Hypothesis 1 | 第58-59页 |
| ·Findings concerning Hypothesis 2 | 第59页 |
| ·Other findings of the study | 第59-61页 |
| Chapter 4 Conclusion, Implications, Limitations of the Study and Suggestions for Future Research | 第61-65页 |
| ·Conclusion | 第61-62页 |
| ·Pedagogical implications | 第62-63页 |
| ·Limitations of the present study | 第63页 |
| ·Suggestions for future study | 第63-65页 |
| References | 第65-72页 |
| Appendix | 第72-96页 |
