| Acknowledgements | 第4-5页 |
| Abstract | 第5-6页 |
| 摘要 | 第7-11页 |
| Chapter Ⅰ Introduction | 第11-16页 |
| 1.1 Background of the Study | 第11-13页 |
| 1.2 Purpose and Significance of the Study | 第13-14页 |
| 1.3 Structure of the Study | 第14-16页 |
| Chapter 2 Literature Review | 第16-25页 |
| 2.1 Theoretical Foundations | 第16-19页 |
| 2.1.1 Attribution Theory | 第16-17页 |
| 2.1.2 Motivation Theory | 第17-18页 |
| 2.1.3 Krashen's Monitor Model | 第18-19页 |
| 2.1.4 Non-intelligence Factors Theory | 第19页 |
| 2.2 Studies of the Mental Health Status of Left-behind Students | 第19-23页 |
| 2.2.1 Definition | 第19页 |
| 2.2.2 Studies of the Mental Health Status of Left-behind Students | 第19-21页 |
| 2.2.3 Studies of the Influence of the Mental Health Status of Left-behind Middle School Students on their English Learning | 第21-23页 |
| 2.3 Studies of the Countermeasures to Improve Left-behind Middle School Students' English Learning at Home and Abroad | 第23-25页 |
| Chapter 3 Research Methodology | 第25-33页 |
| 3.1 Research Questions | 第25页 |
| 3.2 Subjects | 第25-26页 |
| 3.3 Instruments | 第26-28页 |
| 3.3.1 Questionnaire | 第26-27页 |
| 3.3.2 Interview | 第27页 |
| 3.3.3 Classroom Observation | 第27-28页 |
| 3.4 Procedures | 第28-31页 |
| 3.4.1 Conducting of the Questionnaire | 第28-30页 |
| 3.4.2 Conducting of the Interview | 第30-31页 |
| 3.4.3 Conducting of the Classroom Observation | 第31页 |
| 3.5 Data Collection and Analysis | 第31-33页 |
| Chapter 4 Results and Discussion | 第33-53页 |
| 4.1 The Status of Left-behind Middle School Students | 第33-40页 |
| 4.1.1 The Living Status | 第33-35页 |
| 4.1.2 The English Learning Status | 第35-37页 |
| 4.1.3 The Mental Health Status | 第37-40页 |
| 4.2 The Influence of Mental Health Status on Left-behind Middle School Students' English Learning | 第40-44页 |
| 4.2.1 Influence on their Learning Motivation | 第40-42页 |
| 4.2.2 Influence on their Learning Strategies | 第42-44页 |
| 4.3 Countermeasures to Improve Left-behind Senior Middle School Students' English Learning | 第44-53页 |
| 4.3.1 Countermeasures to be Taken by the Family | 第44-47页 |
| 4.3.2 Countermeasures to be Taken by the School | 第47-49页 |
| 4.3.3 Countermeasures to be Taken by the Society | 第49-50页 |
| 4.3.4 Countermeasures to be Taken by Left-behind Senior Middle School Students | 第50-53页 |
| Chapter 5 Conclusion | 第53-57页 |
| 5.1 Major Findings | 第53-54页 |
| 5.2 Limitations of the Study | 第54-55页 |
| 5.3 Suggestions for the Future Research | 第55-57页 |
| References | 第57-61页 |
| Appendices | 第61-71页 |
| Appendix 1 | 第61-66页 |
| Appendix 2 | 第66-69页 |
| Appendix 3 | 第69-71页 |
| 攻读硕士学位期间研究成果 | 第71页 |
