| 摘要 | 第1-7页 |
| Abstract | 第7-12页 |
| Chapter One Introduction | 第12-16页 |
| ·English Learning in China | 第12-13页 |
| ·Significance of the Study | 第13-14页 |
| ·Organization of the Thesis | 第14-16页 |
| Chapter Two Literature Review | 第16-36页 |
| ·Definition and Type of Language Attrition | 第16-18页 |
| ·Definition of Language Attrition | 第16-17页 |
| ·Type of Language Attrition | 第17-18页 |
| ·Summary | 第18页 |
| ·Definition of Some Hypotheses Related with Language Attrition | 第18-22页 |
| ·Linguistic Feature Hypothesis | 第19-20页 |
| ·The Regression Hypothesis | 第20页 |
| ·The Inverse Hypothesis | 第20-21页 |
| ·The Critical Threshold | 第21-22页 |
| ·A Review of Studies on Language Attrition | 第22-25页 |
| ·Studies on Language Attrition abroad | 第23-24页 |
| ·Studies on Language Attrition at Home | 第24-25页 |
| ·A Review of Studies on Vocabulary Attrition | 第25-32页 |
| ·Studies on Vocabulary Attrition abroad | 第25-30页 |
| ·Studies on Vocabulary Attrition at Home | 第30-31页 |
| ·Summary | 第31-32页 |
| ·Individual Factors in Language Attrition | 第32-36页 |
| ·Motivation | 第33-34页 |
| ·Studies on Motivation | 第34-36页 |
| Chapter Three Research Methodology | 第36-42页 |
| ·Research Questions | 第36页 |
| ·Subjects | 第36-38页 |
| ·Instruments | 第38-40页 |
| ·The Motivation Questionnaire | 第38-39页 |
| ·The Vocabulary Test | 第39-40页 |
| ·The Questionnaire of Background Information | 第40页 |
| ·Data Collection | 第40-41页 |
| ·Data Analysis | 第41-42页 |
| Chapter Four Results and Discussion | 第42-54页 |
| ·Descriptive Data | 第42-45页 |
| ·Motivation Intensity | 第42页 |
| ·Analysis of Vocabulary Test Scores at Time 1 | 第42-44页 |
| ·Analysis of Vocabulary Test Scores at Time 2 | 第44-45页 |
| ·Group Differences between Scores of Vocabulary Tests at Time 1 and Time 2 | 第45-48页 |
| ·Analysis of Differences between Vocabulary Test Scores as a Whole at Time 1 and Time 2 | 第45-46页 |
| ·Analysis of Differences between Scores of Terminologies at Time 1 and Time 2 | 第46页 |
| ·Analysis of Differences between Scores of Ordinary Nouns and Terminologies at Time 1 | 第46-47页 |
| ·Analysis of Differences between Scores of Ordinary Nouns and Terminologies at Time 2 | 第47-48页 |
| ·The Association between Vocabulary Attrition and Motivation Intensity | 第48-50页 |
| ·Analysis of the Correlation between the Attrition of Vocabulary as a Whole at Time 1 and Time 2 and Motivation Intensity | 第48页 |
| ·Analysis of the Correlation between the Attrition of Terminologies at Time 1 and Time 2 and Motivation Intensity | 第48-49页 |
| ·Analysis of the Correlation between the Attrition of Ordinary Nouns at Time 1 and Time 2 and Motivation Intensity | 第49-50页 |
| ·Discussion | 第50-54页 |
| ·Vocabulary Skills Affected after Three Months of Disuse | 第50-53页 |
| ·Motivation Intensity as a Predictor of Attrition | 第53-54页 |
| Chapter Five Conclusion | 第54-59页 |
| ·Implications | 第54-55页 |
| ·Limitations and Suggestions for Future Study | 第55-57页 |
| ·Conclusion | 第57-59页 |
| References | 第59-62页 |
| Acknowledgement | 第62-63页 |
| Appendix A | 第63-66页 |
| Appendix B | 第66-68页 |
| Appendix C | 第68-69页 |
| 个人简历 | 第69页 |
| 攻读硕士期间发表的论文 | 第69页 |
