| ACKNOWLEDGEMENTS | 第1-6页 |
| ABSTRACT | 第6-8页 |
| 摘要 | 第8-13页 |
| Chapter One INTRODUCTION | 第13-17页 |
| ·Needs for the Study | 第13-14页 |
| ·Significance of the Study | 第14-16页 |
| ·Theoretical values | 第14-15页 |
| ·Practical values | 第15-16页 |
| ·Organization of the Thesis | 第16-17页 |
| Chapter Two LITEATURE REVIEW | 第17-39页 |
| ·Definitions of Key Terms | 第17-21页 |
| ·Frequency | 第17-19页 |
| ·Contextual richness | 第19-21页 |
| ·Different Views on Vocabulary Knowledge | 第21-28页 |
| ·Taxonomy-component views on vocabulary knowledge | 第21-24页 |
| ·Continuum views on vocabulary knowledge | 第24-28页 |
| ·Relevant Theories of Vocabulary Acquisition | 第28-30页 |
| ·Implicit-explicit learning | 第28-29页 |
| ·Noticing hypothesis | 第29-30页 |
| ·Relevant Empirical Studies | 第30-38页 |
| ·Key empirical studies on frequency effects | 第30-34页 |
| ·Key empirical studies on contextual effects | 第34-36页 |
| ·Key empirical studies on both frequency and contextual effects | 第36-38页 |
| ·Summary | 第38-39页 |
| Chapter Three METHODOLOGY | 第39-50页 |
| ·Research Questions | 第40页 |
| ·Participants | 第40-41页 |
| ·Materials | 第41-43页 |
| ·Reading material | 第41-42页 |
| ·Target words | 第42-43页 |
| ·Instruments | 第43-47页 |
| ·Vocabulary size test | 第43页 |
| ·Ten vocabulary knowledge tests | 第43-46页 |
| ·Semi-structured interviews | 第46-47页 |
| ·Data Collection | 第47-48页 |
| ·Scoring | 第48-49页 |
| ·Scoring contextual richness | 第48页 |
| ·Scoring the ten vocabulary knowledge tests | 第48-49页 |
| ·Data Analysis | 第49-50页 |
| Chapter Four RESULTS AND DISCUSSION | 第50-66页 |
| ·Statistical Analysis of Frequency and Contextual Effects | 第50-60页 |
| ·Gains of the ten vocabulary knowledge tests | 第50-52页 |
| ·Frequency and contextual effects on vocabulary knowledge acquisition | 第52-59页 |
| ·Frequency and contextual effects on total gains of each target word | 第59-60页 |
| ·Qualitative Analysis of Frequency and Contextual Effects | 第60-64页 |
| ·Frequency and Contextual Effects: A Synthesized Discussion | 第64-66页 |
| Chapter Five CONCLUSION | 第66-70页 |
| ·Major Findings | 第66-67页 |
| ·Implications | 第67-69页 |
| ·Limitations and Suggestions for Further Research | 第69-70页 |
| REFERENCES | 第70-75页 |
| APPENDICES | 第75-100页 |
| Appendix A: The Original Reading Material | 第75-78页 |
| Appendix B: The Adapted Reading Material | 第78-81页 |
| Appendix C: Nation’s Vocabulary Size Test | 第81-87页 |
| Appendix D: Ten Vocabulary Knowledge Tests | 第87-91页 |
| Appendix E: Semi-structured Interview Questions | 第91-92页 |
| Appendix F: Samples of Interview Transcripts | 第92-95页 |
| Appendix G: Correlation Tables of Ten Vocabulary Knowledge Tests | 第95-99页 |
| Appendix H: Vocabulary Knowledge Test Results for Each Target Word | 第99-100页 |
