| Acknowledgements | 第1-4页 |
| Abstract | 第4-6页 |
| 中文摘要 | 第6-12页 |
| Abbreviations | 第12-13页 |
| A List of Tables and Figures | 第13-15页 |
| Chapter One Introduction | 第15-20页 |
| ·Background of the Study | 第15-16页 |
| ·Objective of the Study | 第16-17页 |
| ·Significance of the Study | 第17-18页 |
| ·Definitions of Key Terms | 第18-19页 |
| ·Incidental vocabulary learning | 第18页 |
| ·Intentional vocabulary learning | 第18-19页 |
| ·Organization of the Thesis | 第19-20页 |
| Chapter Two Literature Review | 第20-35页 |
| ·General Studies on Vocabulary Learning | 第20-22页 |
| ·Importance of vocabulary learning in SLA | 第20页 |
| ·Acquisition and learning | 第20-21页 |
| ·Word knowledge | 第21-22页 |
| ·Knowing a word | 第21页 |
| ·Receptive knowledge vs. productive knowledge | 第21-22页 |
| ·Taxonomy of Modes of Vocabulary Learning | 第22-26页 |
| ·Intentional and incidental learning | 第22-24页 |
| ·Direct and indirect learning | 第24-25页 |
| ·Explicit and implicit learning | 第25-26页 |
| ·Previous Empirical Studies on Intentional and Incidental Vocabulary Learning | 第26-31页 |
| ·Empirical studies abroad | 第26-28页 |
| ·Empirical studies in China | 第28-29页 |
| ·Summary of previous studies | 第29-31页 |
| ·Cognitive Basis for Vocabulary Retention | 第31-35页 |
| ·Depth of Processing Theory | 第31-33页 |
| ·Long-term memory vs. short-term memory | 第33-35页 |
| Chapter Three Research Design and Methodology | 第35-45页 |
| ·Overview | 第35页 |
| ·Research Questions and Hypotheses | 第35-36页 |
| ·Participants and Site Selection | 第36-37页 |
| ·Instruments | 第37-39页 |
| ·Materials | 第37-38页 |
| ·Target words | 第37页 |
| ·Reading passages | 第37-38页 |
| ·Immediate vocabulary test and delayed vocabulary test | 第38页 |
| ·Questionnaire | 第38-39页 |
| ·Implementation of the Experiment | 第39-42页 |
| ·Pilot study | 第39-40页 |
| ·Main study | 第40-42页 |
| ·Data Collection | 第42-44页 |
| ·Test paper design | 第42-43页 |
| ·Administration of test | 第43页 |
| ·Test scoring | 第43-44页 |
| ·Data Analysis | 第44-45页 |
| Chapter Four Experimental Results and Discussions | 第45-70页 |
| ·Overview | 第45页 |
| ·Results of the Experiment | 第45-63页 |
| ·Results of treatment I | 第45-49页 |
| ·Results of the Independent-Samples-T-test | 第45-46页 |
| ·Results of the Paired-Samples-T-test | 第46-49页 |
| ·Results of treatment II | 第49-53页 |
| ·Results of the Independent-Samples-T-test | 第49-50页 |
| ·Results of the Paired-Samples-T-test | 第50-53页 |
| ·Results of treatment III | 第53-57页 |
| ·Results of the Independent-Samples-T-test | 第53-54页 |
| ·Results of the Paired-Samples-T-test | 第54-57页 |
| ·Summary of the three treatments | 第57-60页 |
| ·Summary of the descriptive statistics | 第57-59页 |
| ·Summary of the Independent-Samples-T-tests | 第59-60页 |
| ·Summary of the Paired-Samples-T-tests | 第60页 |
| ·Results of the questionnaire | 第60-63页 |
| ·Discussions about the Results of the Experiment | 第63-70页 |
| ·Effects of cognitive processing on vocabulary retention | 第63-65页 |
| ·Effects of learners' attention on vocabulary retention | 第65-67页 |
| ·Correlation between frequency of exposure to words and vocabulary retention | 第67-68页 |
| ·Roles of context on incidental vocabulary learning | 第68-70页 |
| Chapter Five Conclusion | 第70-77页 |
| ·Major Findings | 第70-72页 |
| ·Pedagogical Implications | 第72-74页 |
| ·Limitations of the Present Study | 第74-75页 |
| ·Recommendations for Further Studies | 第75-77页 |
| Bibliography | 第77-81页 |
| Appendices | 第81-92页 |
| Appendix one Vocabulary Levels Test | 第81-83页 |
| Appendix two Reading passage (One sample) (For incidental group) Speed and Comfort | 第83-85页 |
| Appendix three Word list (One sample) (For intentional group) | 第85-86页 |
| Appendix four Immediate vocabulary test (one sample) | 第86-87页 |
| Appendix five Delayed vocabulary test (one sample) | 第87-88页 |
| Appendix six Questionnaire on students' English vocabulary learning mode (Chinese version) | 第88-90页 |
| Appendix seven The original scores of the two experimental groups in the immediate vocabulary tests and delayed vocabulary tests | 第90-92页 |
