| ABSTRACT | 第1-6页 |
| 摘要 | 第6-12页 |
| Chapter One Introduction | 第12-16页 |
| ·Rationale for the Research | 第12-13页 |
| ·Motivation of the Research | 第13页 |
| ·Significance of the Research | 第13-14页 |
| ·Outline of the Thesis | 第14-16页 |
| Chapter Two Literature Review | 第16-36页 |
| ·Lexical Competence | 第16-19页 |
| ·Two-dimensional Framework of Lexical Competence | 第16-17页 |
| ·Three-dimensional Framework of Lexical Competence Proposed by Henriksen | 第17-18页 |
| ·Four-dimensional Framework of Lexical Competence | 第18-19页 |
| ·Summary of Lexical Competence | 第19页 |
| ·Model of Lexical Competence Presented in the Research of This Thesis | 第19-35页 |
| ·Receptive Vocabulary and Productive Vocabulary | 第19-26页 |
| ·Depth of Word Knowledge | 第26-35页 |
| ·Summary | 第35-36页 |
| Chapter Three Description of the Research | 第36-44页 |
| ·Research Questions | 第36页 |
| ·Research Method | 第36-37页 |
| ·Subjects | 第37页 |
| ·Instruments | 第37-40页 |
| ·Vocabulary Level Test for Receptive Vocabulary | 第37-38页 |
| ·Writing Test for Productive Vocabulary | 第38-39页 |
| ·Word Associate Test for Depth of Word Knowledge | 第39-40页 |
| ·Data Collection | 第40页 |
| ·Data Analysis | 第40-42页 |
| ·Summary | 第42-44页 |
| Chapter Four Results and Discussions | 第44-70页 |
| ·Changes in the Receptive Vocabulary among Freshmen, Sophomores, Juniors and Seniors | 第44-52页 |
| ·Changes in the Productive Vocabulary among Freshmen, Sophomores, Juniors and Seniors | 第52-55页 |
| ·Changes in Depth of Word Knowledge of Freshmen, Sophomores, Juniors and Seniors | 第55-58页 |
| ·The Interrelationships among Receptive Vocabulary, Productive Vocabulary and Depth of Word Knowledge of Freshmen , Sophomores, Juniors and Seniors | 第58-61页 |
| ·How Subject-based English Learning Benefits Seniors' lexical Competence | 第61-68页 |
| ·A Brief Introduction to Subject-based English | 第61-63页 |
| ·Necessity of the Research into Subject-Based English Learning | 第63页 |
| ·Research Method | 第63-64页 |
| ·Description of Class Observation | 第64-65页 |
| ·Comparison of Test Results before and after Subject -based English Learning | 第65-67页 |
| ·Problems in the Current Situation of Subject-based English Instruction | 第67-68页 |
| ·Summary | 第68-70页 |
| Chapter Five Conclusions | 第70-78页 |
| ·Major Findings | 第70页 |
| ·Pedagogical Implications | 第70-75页 |
| ·Input | 第71-72页 |
| ·Output | 第72-73页 |
| ·Changing Students' Beliefs about Vocabulary Learning | 第73-74页 |
| ·Encouraging Students' Use of Vocabulary Learning Strategies | 第74-75页 |
| ·Improving Subject-based English Teaching | 第75页 |
| ·Limitations of the Research | 第75-78页 |
| BIBLIOGRAPHY | 第78-82页 |
| APPENDICES | 第82-92页 |
| Appendix 1 Vocabulary Level Test for Receptive Vocabulary | 第82-88页 |
| Appendix 2 Word Associates Test for Depth of Word Knowledge | 第88-90页 |
| Appendix 3 Writing Test for Productive Vocabulary | 第90-92页 |
| ACKNOWLEDGEMENTS | 第92-94页 |
| PUBLISHED PAPERS | 第94页 |
