| Abstract | 第1-5页 |
| 摘要 | 第5-6页 |
| Abbreviations | 第6-7页 |
| CONTENTS | 第7-10页 |
| Chapter One: Introduction | 第10-14页 |
| ·Research background of the thesis | 第10-11页 |
| ·The primary hypothesis and the significance of the thesis | 第11-13页 |
| ·The structure of this thesis | 第13-14页 |
| Chapter Two: Language environment and acquisition | 第14-28页 |
| ·Literature review | 第14-24页 |
| ·Terms defined | 第14-17页 |
| ·Language environment | 第14-15页 |
| ·Foreign language learning environment and second language acquisition environment | 第15-16页 |
| ·Acquisition and learning | 第16-17页 |
| ·Kinds of the accessible language environments (ALEs) in China | 第17-19页 |
| ·The factors related to acquisition in language environment | 第19-21页 |
| ·Input | 第20页 |
| ·Output | 第20页 |
| ·Interaction | 第20-21页 |
| ·Culture in language environment | 第21-22页 |
| ·The definition of culture | 第21页 |
| ·The relation between culture and language | 第21-22页 |
| ·The status quo of culture learning and teaching in Chinese universities | 第22页 |
| ·Previous studies | 第22-24页 |
| ·Studies from the perspective of constructive theory | 第22-23页 |
| ·Studies from the perspective of SLA theory | 第23-24页 |
| ·The researcher's ideas based on the literature review | 第24-27页 |
| ·Chinese learners' personal language environment | 第24-25页 |
| ·Chinese learners' ideal way to language proficiency | 第25页 |
| ·The ALE-based learning | 第25页 |
| ·The relationship between language environment and acquisition | 第25-27页 |
| ·Summary | 第27-28页 |
| Chapter Three: Theoretical foundation and the characteristics of ALEs | 第28-40页 |
| ·The related theories | 第28-35页 |
| ·Input Hypothesis | 第28-29页 |
| ·Output Hypothesis and Interaction Hypothesis | 第29-32页 |
| ·Affective Filter Hypothesis | 第32-33页 |
| ·Constructivist theory | 第33-35页 |
| ·The characteristics of ALEs | 第35-38页 |
| ·Rich input in ALEs | 第35-36页 |
| ·Interactive activities in ALEs | 第36页 |
| ·Positive affective factors in ALEs | 第36-37页 |
| ·The Learner-centeredness in ALEs | 第37-38页 |
| ·Summary | 第38-40页 |
| Chapter Four: The empirical study | 第40-59页 |
| ·The quantitative study | 第40-50页 |
| ·Research questions | 第40页 |
| ·Subjects | 第40-41页 |
| ·Instrument | 第41-42页 |
| ·Procedures for data collection | 第42-43页 |
| ·The results | 第43-50页 |
| ·Summary of the quantitative study | 第50页 |
| ·The qualitative study | 第50-59页 |
| ·Subjects | 第50-51页 |
| ·Instrument | 第51页 |
| ·Procedures for data collection | 第51页 |
| ·The results and discussion of the qualitative study | 第51-57页 |
| ·Summary of the qualitative study | 第57-59页 |
| Chapter Five: Analysis | 第59-64页 |
| ·From the perspective of SLA theories | 第59-60页 |
| ·From the perspective of Constructivist theory | 第60-63页 |
| ·Learner-centeredness of ALEs promotes the learners' interests and motivation | 第60-61页 |
| ·Active use of ALEs promotes learners' language acquisition | 第61-62页 |
| ·Social interaction promotes learners' language acquisition | 第62-63页 |
| ·Summary | 第63-64页 |
| Chapter Six: Conclusion | 第64-67页 |
| ·The implications | 第65-66页 |
| ·Limitations of the study and areas for further research | 第66-67页 |
| References | 第67-72页 |
| Appendix 1 Profile of the HF and LF learners for interview | 第72-73页 |
| Appendix 2 A cultural knowledge test | 第73-77页 |
| Appendix 3 关于大学生课外语言环境使用情况的问卷调查 | 第77-80页 |
| Acknowledgements | 第80-81页 |
