| Acknowledgements | 第1-4页 |
| Abstract (English) | 第4-7页 |
| Abstract (Chinese) | 第7-12页 |
| Chapter Ⅰ Introduction | 第12-16页 |
| ·Overview | 第12-13页 |
| ·An initiative view of yugan | 第13页 |
| ·Rationale and necessity of the study | 第13-14页 |
| ·Aims and research questions | 第14-15页 |
| ·Methods | 第15页 |
| ·The organization of the study | 第15-16页 |
| Chapter Ⅱ Literature Review | 第16-24页 |
| ·Early study of yugan in China | 第16-17页 |
| ·The study of yugan by modern scholars in China | 第17-20页 |
| ·The study of yugan by some western scholars | 第20-22页 |
| ·Evaluation | 第22-24页 |
| Chapter Ⅲ Generation and Development of Yugan | 第24-48页 |
| ·The unconsciousness of language | 第24-26页 |
| ·Biological foundation of language | 第26-28页 |
| ·Universal Grammar | 第28-35页 |
| ·Behaviourist psychology in structuralism about language learning | 第28-29页 |
| ·Chomsky's innateness hypothesis | 第29-31页 |
| ·Universal Grammar | 第31-32页 |
| ·E-language/I-language | 第32-33页 |
| ·Language Acquisition Device | 第33-34页 |
| ·Relation with yugan | 第34-35页 |
| ·Generation and development of yugan | 第35-44页 |
| ·Yugan structure | 第36-37页 |
| ·Constructive feature of yugan development | 第37-38页 |
| ·Generative and developmental mechanism of yugan | 第38-44页 |
| ·Equilibrium | 第38-40页 |
| ·The concrete device of yugan development | 第40-43页 |
| ·The relation between assimilation and accommodation | 第43-44页 |
| ·Summary of the chapter | 第44-48页 |
| Chapter Ⅳ Understanding Yugan | 第48-55页 |
| ·Product of both nature and nurture | 第48页 |
| ·A comprehensive intuition | 第48-49页 |
| ·Gradualness and naturalness | 第49页 |
| ·Differences in individuals' yugan | 第49-51页 |
| ·Common yugan | 第51页 |
| ·The constant change of yugan | 第51-52页 |
| ·The vagueness and unanalysis of yugan | 第52页 |
| ·Yugan as a linguistic ability | 第52-53页 |
| ·The cultivation and training of yugan | 第53页 |
| ·The influence of one's native language yugan on the formation of his foreign language yugan | 第53-55页 |
| Chapter Ⅴ Yugan Test | 第55-62页 |
| ·Quantitative analysis of yugan | 第55-56页 |
| ·Standard in judging the test paper | 第56页 |
| ·Purpose of the test | 第56-57页 |
| ·The design of the test | 第57-58页 |
| ·Test result | 第58-59页 |
| ·Analysis and discussion | 第59-62页 |
| Chapter Ⅵ Conclusions | 第62-66页 |
| Appendix | 第66-67页 |
| Bibliography | 第67-69页 |
