| Acknowledgements | 第5-8页 |
| Abstract | 第8-9页 |
| 摘要 | 第10-12页 |
| Chapter One Introduction | 第12-18页 |
| 1.1 General Introduction to the Present Study | 第12-13页 |
| 1.2 Background of the Study | 第13-16页 |
| 1.2.1 English as a Lingua Franca in the World | 第13-14页 |
| 1.2.2 Tri-language Situation in Zhongshan City | 第14-16页 |
| 1.3 Focus of the Study | 第16页 |
| 1.4 Significance of the Study | 第16-17页 |
| 1.5 Layout of the Thesis | 第17-18页 |
| Chapter Two Literature Review | 第18-37页 |
| 2.1 Third Language Acquisition | 第18-25页 |
| 2.1.1 First Language, Second Language and Linguistic Competence | 第18-19页 |
| 2.1.2 Bilingualism, Trilingualism and Multilingualism | 第19-21页 |
| 2.1.3 Differences between SLA and TLA | 第21-25页 |
| 2.2 Cognitive Learning Theory | 第25-30页 |
| 2.2.1 Transfer | 第26页 |
| 2.2.2 Learning Styles | 第26-28页 |
| 2.2.3 Learning Strategies | 第28-30页 |
| 2.3 Related Research at Home and Abroad | 第30-37页 |
| 2.3.1 Studies Abroad | 第30-33页 |
| 2.3.2 Studies at Home | 第33-37页 |
| Chapter Three Methodology | 第37-43页 |
| 3.1 Research Questions | 第37页 |
| 3.2 Subject Selection | 第37-38页 |
| 3.3 Research Instruments | 第38-41页 |
| 3.3.1 Questionnaires | 第39-40页 |
| 3.3.2 Scores of Chinese & English final examination tests | 第40页 |
| 3.3.3 Interview | 第40-41页 |
| 3.4 Data Collection | 第41-42页 |
| 3.5 Data Analysis | 第42-43页 |
| Chapter Four Results and Discussion | 第43-64页 |
| 4.1 Analyzing Differences between Two Groups in Chinese Achievement and EnglishAchievement | 第43-45页 |
| 4.2 Analyzing Differences between Two Groups in Preference of Learning Styles | 第45-48页 |
| 4.3 Analyzing Differences between Two Groups in Language Learning Strategy Use | 第48-60页 |
| 4.3.1 Overall Learning Strategy Use | 第49-52页 |
| 4.3.2 Differences between Two Groups in Cognitive Strategies | 第52-54页 |
| 4.3.3 Differences between Two Groups in Compensation Strategies | 第54-55页 |
| 4.3.4 Differences between Two Groups in Metacognitive Strategies | 第55-57页 |
| 4.3.5 Differences between Two Groups in Affective Strategies | 第57-58页 |
| 4.3.6 Differences between Two Groups in Social Strategies | 第58-60页 |
| 4.4 Analyzing Differences between Two Groups in their Correlations among Learning Styles, Learning Strategies and English Achievement | 第60-64页 |
| 4.4.1 Correlations between Learning Styles and Learning Strategies | 第60-62页 |
| 4.4.2 Correlations between Learning Styles and English Achievement | 第62页 |
| 4.4.3 Correlations between Learning Strategies and English Achievement | 第62-64页 |
| Chapter Five Conclusion | 第64-69页 |
| 5.1 Major Findings | 第64-65页 |
| 5.2 Research Results | 第65-66页 |
| 5.3 Implications | 第66-67页 |
| 5.4 Limitations of the Study | 第67-69页 |
| References | 第69-78页 |
| Appendix I Questionnaire | 第78-84页 |
| Appendix II Interview Questions | 第84-85页 |
| Appendix III Sample of English Final Examination Text | 第85-93页 |
| Publications | 第93页 |
