| Acknowledgments | 第1-7页 |
| Abstract | 第7-9页 |
| 内容摘要 | 第9-11页 |
| Chapter One Introduction | 第11-14页 |
| ·Background of this study | 第11-12页 |
| ·Objective and significance of the thesis | 第12-13页 |
| ·Organization of the thesis | 第13-14页 |
| Chapter Two Literature Review | 第14-22页 |
| ·Development of fuzziness theory | 第14-16页 |
| ·Previous linguistic research on fuzziness | 第16-22页 |
| ·Philosophical studies | 第16-19页 |
| ·Linguistic studies | 第19-22页 |
| Chapter Three Analysis of Fuzziness in Language | 第22-38页 |
| ·The definition of fuzziness | 第22-24页 |
| ·Differences between fuzziness and other notions | 第24-27页 |
| ·Fuzziness and vagueness | 第24-25页 |
| ·Fuzziness and generality | 第25-26页 |
| ·Fuzziness and ambiguity | 第26页 |
| ·Fuzziness and polysemy | 第26-27页 |
| ·Causes of fuzziness in natural language | 第27-33页 |
| ·Objects existing in the universe | 第28-29页 |
| ·Language itself and language users | 第29-31页 |
| ·The collision of objects and subjects in language | 第31-33页 |
| ·Causes of fuzziness in daily communication | 第33-34页 |
| ·Classification of fuzzy expressions in daily communication | 第34-38页 |
| ·Classification of fuzzy expressions on the basis of function | 第35-36页 |
| ·Classification of fuzzy expressions on the basis of structure | 第36-38页 |
| Chapter Four Understanding Fuzziness in Daily Communication | 第38-56页 |
| ·Context-dependence of fuzziness | 第38-40页 |
| ·Hedges and fuzziness | 第40-44页 |
| ·Culture and fuzziness | 第44-48页 |
| ·Observing fuzziness from pragmatics | 第48-53页 |
| ·Application of cooperative principle | 第49-50页 |
| ·Application of politeness principle | 第50-51页 |
| ·Application of the face theory | 第51-53页 |
| ·Significance of understanding fuzziness in daily communication | 第53-56页 |
| ·Fostering awareness of utilizing fuzzy language | 第53-54页 |
| ·Developing cognitive learning styles of inference and guessing | 第54-55页 |
| ·Flexible selection of fuzzy language | 第55-56页 |
| Chapter Five Means and Ideal Purposes of Applying Fuzziness to Realize Efficient Communication | 第56-68页 |
| ·Means of applying fuzziness to realize efficient communication | 第56-62页 |
| ·Lexical devices | 第56-60页 |
| ·Fuzzy words | 第56-57页 |
| ·Implicature | 第57-59页 |
| ·Euphemism | 第59页 |
| ·Unclear reference | 第59-60页 |
| ·Syntactical devices | 第60-62页 |
| ·Hedges | 第60-61页 |
| ·Modality | 第61-62页 |
| ·Comparative degree and negation | 第62页 |
| ·Ideal purposes of applying fuzziness to realize efficient communication | 第62-68页 |
| ·Withholding information | 第63-64页 |
| ·Being persuasive | 第64页 |
| ·Self-protection | 第64-66页 |
| ·Mitigating one's responsibility | 第66-67页 |
| ·Creating a harmonious atmosphere | 第67-68页 |
| Chapter Six Conclusion | 第68-70页 |
| ·Summary of the study | 第68页 |
| ·Limitations and suggestions | 第68-70页 |
| References | 第70-74页 |
