| Acknowledgements | 第1-5页 |
| Contents | 第5-7页 |
| List of Tables | 第7-8页 |
| List of Figures | 第8-9页 |
| Abstract | 第9-11页 |
| 内容摘要 | 第11-13页 |
| Chapter One Introduction | 第13-16页 |
| ·Research Background | 第13-14页 |
| ·Significance of the Present Study | 第14-15页 |
| ·Overall Structure of the Study | 第15-16页 |
| Chapter Two Literature Review | 第16-36页 |
| ·The Concept of the Mental Lexicon | 第16-18页 |
| ·Mental Lexicon and Lexical Competence | 第18-20页 |
| ·The Organization of L1 Mental Lexicon | 第20-24页 |
| ·Hierarchical network model | 第20-22页 |
| ·Spreading activation model | 第22-24页 |
| ·Theories on the L2 Mental Lexicon | 第24-28页 |
| ·Revised hierarchical model | 第24-26页 |
| ·Shared distributed asymmetrical model | 第26-27页 |
| ·The psycholinguistic model of L2 vocabulary acquisition | 第27-28页 |
| ·Research Methods of Mental Lexicon | 第28-33页 |
| ·Word association studies on the L1 mental lexicon | 第29-30页 |
| ·Controversial findings of word association studies on the L2 menta lexicon | 第30-33页 |
| ·Studies of the Mental Lexicon in China | 第33-34页 |
| ·Summary and Unsolved Problem | 第34-36页 |
| Chapter Three Methodology | 第36-46页 |
| ·Research Questions | 第36页 |
| ·Subjects | 第36-37页 |
| ·Instruments | 第37-40页 |
| ·Word association test | 第37-38页 |
| ·Vocabulary knowledge scale test | 第38-39页 |
| ·Stimulus words | 第39-40页 |
| ·Pilot Studies | 第40-41页 |
| ·Procedures | 第41页 |
| ·Data Collection | 第41-42页 |
| ·Classification of Word Association Responses | 第42-46页 |
| Chapter Four Results and Discussion | 第46-69页 |
| ·Response Types by L2 Learners of Three Different Grades | 第46-53页 |
| ·Four response types by learners of Grade One | 第46-48页 |
| ·Four response types by learners of Grade Two | 第48-50页 |
| ·Four response types by learners of Grade Three | 第50-51页 |
| ·A comparision of four response types by learners of three grades | 第51-53页 |
| ·The Overall Response Pattern L2 Learners in Senior High School | 第53-55页 |
| ·Response Types for Different Word Classes | 第55-58页 |
| ·Semantic and non-semantic responses for nouns | 第56-57页 |
| ·Semantic and non-semantic responses for verbs | 第57-58页 |
| ·Semantic and non-semantic responses for adjectives | 第58页 |
| ·Response Types for Different Word Concreteness | 第58-63页 |
| ·Semantic and non-semantic responses for concrete words | 第60-62页 |
| ·Semantic and non-semantic responses for abstract words | 第62-63页 |
| ·Discussion | 第63-69页 |
| Chapter Five Conclusion | 第69-74页 |
| ·Major Findings of the Study | 第69-70页 |
| ·Implications for Language Teaching and Language Learning | 第70-72页 |
| ·Limitations of the Present Study and Suggests for Future Studies | 第72-74页 |
| References | 第74-80页 |
| Appendix A 英语词汇知识等级测试(Vocabulary knowledge scale test) | 第80-82页 |
| Appendix B 具体性评定 | 第82-84页 |
| Appendix C 词汇联想反应测试 | 第84页 |
