| 摘要 | 第1-6页 |
| Abstract | 第6-11页 |
| List of Tables | 第11-12页 |
| Abbreviations | 第12-13页 |
| Introduction | 第13-18页 |
| Chapter 1 Literature Review | 第18-40页 |
| ·Lexicon Attrition | 第18-22页 |
| ·Definitions of Lexicon Attrition | 第18-21页 |
| ·Types of Lexicon Attrition | 第21-22页 |
| ·Motivation and Lexicon Attrition | 第22-26页 |
| ·Types of Motivation | 第22页 |
| ·Researches Conducted on Motivation and Lexicon Attrition | 第22-26页 |
| ·Researches Conducted on Lexicon Attrition | 第26-32页 |
| ·Relevant Researches Conducted Abroad | 第26-29页 |
| ·Relevant Researches Conducted at Home | 第29-31页 |
| ·Necessity for the Present Study | 第31-32页 |
| ·Theoretical Foundations of this Research | 第32-38页 |
| ·Psycholinguistic Views towards Lexicon Attrition | 第32-33页 |
| ·Neurological Views towards Lexicon Attrition | 第33-35页 |
| ·Linguistic Views towards Lexicon Attrition | 第35-36页 |
| ·Social-linguistic Views towards Lexicon Attrition | 第36-38页 |
| ·Summary | 第38-40页 |
| Chapter 2 Research Design | 第40-46页 |
| ·Research Questions and Hypotheses | 第40-41页 |
| ·Subjects | 第41页 |
| ·Target Words | 第41页 |
| ·Research Methods | 第41-44页 |
| ·Student Questionnaire and Procedures | 第42-43页 |
| ·Lexicon Survey and Procedures | 第43-44页 |
| ·Student Interview | 第44页 |
| ·Data Collecting and Analysis Procedures | 第44-45页 |
| ·Summary | 第45-46页 |
| Chapter 3 Research Results and Discussions | 第46-68页 |
| ·Results and Discussions of Students' Motivation | 第46-50页 |
| ·Results of Student Questionnaire | 第46-49页 |
| ·Discussions | 第49-50页 |
| ·Results and Discussions of the Lexicon Tests | 第50-55页 |
| ·Results of Lexicon Tests | 第50-53页 |
| ·Discussions | 第53-55页 |
| ·Correlation between Motivation and Lexicon Attrition | 第55-61页 |
| ·Correlation between Integrative Motivation and Lexicon Attrition | 第55-57页 |
| ·Correlation between Instrumental Motivation and Lexicon Attrition | 第57-59页 |
| ·Discussions | 第59-61页 |
| ·Results and Discussions of the Interview | 第61-66页 |
| ·Results of the Interview | 第61-65页 |
| ·Discussions | 第65-66页 |
| ·Summary | 第66-68页 |
| Chapter 4 Implications and Limitation of the Study | 第68-73页 |
| ·Implications for Students | 第68-69页 |
| ·Implications for Teachers | 第69-70页 |
| ·Implications for Researchers | 第70-71页 |
| ·Limitation and Suggestions for Future Study | 第71-73页 |
| Conclusion | 第73-76页 |
| Bibliography | 第76-87页 |
| Appendices | 第87-102页 |
| Appendix Ⅰ: Student Questionnaire | 第87-90页 |
| Appendix Ⅱ: Pre-test Paper | 第90-92页 |
| Appendix Ⅲ: Post-test Paper | 第92-94页 |
| Appendix Ⅳ: Results of Motivation Tendency | 第94-97页 |
| Appendix Ⅴ: Results of Motivation Intensity | 第97-99页 |
| Appendix Ⅵ: Results of Test Papers | 第99-101页 |
| Appendix Ⅶ: Student Interview | 第101-102页 |
| Acknowledgements | 第102-103页 |
| 攻读硕士学位期间主要研究成果 | 第103页 |
