| Abstract | 第5-6页 |
| 摘要 | 第7-14页 |
| Chapter One Introduction | 第14-19页 |
| 1.1 Background of the Study | 第14-16页 |
| 1.2 Significance of the Study | 第16-17页 |
| 1.2.1 Theoretical Significance | 第16-17页 |
| 1.2.2 Practical Significance | 第17页 |
| 1.3 The Organization of the Thesis | 第17-19页 |
| Chapter Two Literature Review | 第19-38页 |
| 2.1 The Definition of Language Attrition | 第19-21页 |
| 2.2 The Taxonomy of Language Attrition | 第21-22页 |
| 2.3 The Nature of Language Attrition | 第22-23页 |
| 2.4 The Hypotheses of Language Attrition | 第23-26页 |
| 2.4.1 The Regression Hypothesis | 第24-25页 |
| 2.4.2 The Inverse Hypothesis | 第25-26页 |
| 2.4.3 The Threshold Hypothesis | 第26页 |
| 2.5 Variables Affecting Foreign Language Attrition | 第26-32页 |
| 2.5.1 The Pre-attrition Level of Language Proficiency | 第26-27页 |
| 2.5.2 Duration of Suffering Attrition | 第27-28页 |
| 2.5.3 The Amount of Exposure to Target Language | 第28-29页 |
| 2.5.4 Age | 第29-30页 |
| 2.5.5 The Way of Foreign Language Learning | 第30页 |
| 2.5.6 Affective Factors | 第30页 |
| 2.5.7 Literacy | 第30-31页 |
| 2.5.8 Gender | 第31-32页 |
| 2.6 Studies Aboard and at Home | 第32-38页 |
| 2.6.1 Studies Aboard | 第32-34页 |
| 2.6.2 Studies at Home | 第34-38页 |
| Chapter Three Methodology | 第38-45页 |
| 3.1 Research Questions | 第38页 |
| 3.2 Subjects | 第38-39页 |
| 3.3 Instruments | 第39-42页 |
| 3.3.1 Language Proficiency Test | 第40页 |
| 3.3.2 Questionnaire | 第40-41页 |
| 3.3.3 Interview | 第41-42页 |
| 3.4 Data Collection and Analysis | 第42-45页 |
| 3.4.1 Data Collecting | 第42-43页 |
| 3.4.2 Data Analysis | 第43-45页 |
| Chapter Four Results and Discussion | 第45-67页 |
| 4.1 Language Attrition after Stopping College English Course | 第45-51页 |
| 4.1.1 Attrition in English | 第45-47页 |
| 4.1.2 Attrition of Sub-skills in Test 1 and Test 2 | 第47-50页 |
| 4.1.3 The Comparison of Attrition in Receptive Skills and Productive Skills | 第50页 |
| 4.1.4 The Explanations of Phenomenon of Language Attrition | 第50-51页 |
| 4.2 The Relationship between Pre-attrition English Proficiency and Language Attrition | 第51-55页 |
| 4.2.1 The Comparison of High-Level and Low-Level Groups | 第52-54页 |
| 4.2.2 The Explanations of the Differences between High-level and Low-level group | 第54-55页 |
| 4.3 The Relationship between the Amount of Exposure to English and Language Attrition | 第55-59页 |
| 4.3.1 Types and Amount of Exposure to English | 第55-57页 |
| 4.3.2 The Correlation between the Amount of Exposure to English and Language Attrition | 第57-58页 |
| 4.3.3 The Explanations of Correlation between Amount of Exposure to English and EnglishLanguage Attrition | 第58-59页 |
| 4.4 The Gender Differences in Language Attrition | 第59-64页 |
| 4.4.1 The Performance of Two Genders in the Total Scores of Two Tests | 第60-61页 |
| 4.4.2 The Performance of Two Genders in Language Skills in Two Tests | 第61-63页 |
| 4.4.3 The Explanations of Gender Difference in Language Attrition | 第63-64页 |
| 4.5 The Results of Interview | 第64-67页 |
| Chapter Five Conclusion | 第67-74页 |
| 5.1 Summary of the Major Findings | 第67-69页 |
| 5.2 Implications | 第69-72页 |
| 5.2.1 Theoretical Implications | 第69页 |
| 5.2.2 Practical Implications | 第69-72页 |
| 5.3 Limitations and Suggestions for the Future Study | 第72-74页 |
| References | 第74-79页 |
| Appendix Ⅰ | 第79-81页 |
| Appendix Ⅱ | 第81-82页 |
| Appendix Ⅲ | 第82-96页 |
| Acknowedgements | 第96页 |
