| Abstract | 第1-7页 |
| 摘要 | 第7-12页 |
| Chapter 1 Introduction | 第12-19页 |
| ·Background of the research | 第12-16页 |
| ·Objective and significance of the research | 第16-17页 |
| ·Data source and methodology of the research | 第17页 |
| ·Organization of the research | 第17-19页 |
| Chapter 2 Literature Review | 第19-34页 |
| ·Studies of language variation | 第20-30页 |
| ·From a perspective of sociolinguistics | 第20-27页 |
| ·From a perspective of stylistics | 第27-29页 |
| ·From other perspectives | 第29-30页 |
| ·Combined studies of language deviation and eco-linguistics | 第30-34页 |
| ·Opinions overseas | 第30-31页 |
| ·Opinions at home | 第31-34页 |
| Chapter 3 Theoretical Framework | 第34-46页 |
| ·Two views of ecology in eco-linguistics | 第34-39页 |
| ·Ecology as a metaphor for language | 第35-37页 |
| ·Non-metaphorical ecology in language | 第37-39页 |
| ·Ecological principle─diversity | 第39-46页 |
| ·The classification of diversity | 第39-43页 |
| ·Relationship between diversities | 第43-46页 |
| Chapter 4 Biological Diversity and Cultural Diversity in Language Deviation | 第46-63页 |
| ·Linguistic ecological environment for deviated language | 第47-52页 |
| ·Biological diversity in natural environment for deviated language | 第47-49页 |
| ·Cultural diversity in cultural environment for deviated language | 第49-52页 |
| ·Deviated language from biological diversity | 第52-56页 |
| ·Deviated forms in geographical diversity | 第52-55页 |
| ·Deviated forms in individual diversity | 第55-56页 |
| ·Deviated language from cultural diversity | 第56-63页 |
| ·Deviated forms in conception diversity | 第57-60页 |
| ·Deviated forms in custom diversity | 第60-63页 |
| Chapter 5 Linguistic Diversity in Language Deviation | 第63-82页 |
| ·The rule of fitness of survival for language deviation | 第63-66页 |
| ·Language as species | 第63-65页 |
| ·Language competition | 第65-66页 |
| ·The ecology in deviated language | 第66-74页 |
| ·Neologisms | 第67-70页 |
| ·Deviated mixture of signs | 第70-74页 |
| ·The vitality in deviated language | 第74-82页 |
| ·Deviated loanwords | 第75-77页 |
| ·Deviated collocation | 第77-82页 |
| Chapter 6 Conclusion | 第82-86页 |
| ·Major findings of the thesis | 第82-84页 |
| ·Limitations and suggestions for further study | 第84-86页 |
| Bibliography | 第86-94页 |
| 攻读硕士学位期间主要科研成果 | 第94-95页 |
| Acknowledgements | 第95页 |
