| ABSTRACT | 第1-4页 |
| 摘要 | 第4-8页 |
| LIST OF ABBREVIATIONS | 第8-9页 |
| CHAPTER Ⅰ INTRODUCTION | 第9-16页 |
| ·Research background | 第9-11页 |
| ·Research objectives | 第11-12页 |
| ·Significance of the research | 第12-14页 |
| ·Theoretical significance | 第13页 |
| ·Practical significance | 第13-14页 |
| ·Overall structure of the thesis | 第14-16页 |
| CHAPTER Ⅱ LITERATURE REVIEW | 第16-40页 |
| ·Fundamental concepts of vague language and relevant theories | 第16-23页 |
| ·Basic concepts of vague language | 第16-19页 |
| ·Related theories to vague language | 第19-23页 |
| ·Current research on vague language abroad and home | 第23-31页 |
| ·Existing research on vague language abroad | 第24-27页 |
| ·Existing research on vague language in China | 第27-31页 |
| ·Contributions and limitations of previous researches | 第31页 |
| ·Common pragmatic functions of vague language | 第31-40页 |
| ·Giving the right amount of information | 第32-33页 |
| ·Withholding information deliberately | 第33-34页 |
| ·Using language persuasively | 第34页 |
| ·Filling lexical gaps | 第34-35页 |
| ·Lacking specific information | 第35页 |
| ·Realizing displacement | 第35-36页 |
| ·Self-protecting | 第36页 |
| ·Balancing power and politeness | 第36-37页 |
| ·Creating informality and atmosphere | 第37-38页 |
| ·Indicating feminality | 第38-40页 |
| CHAPTER Ⅲ DATA COLLECTION AND METHODOLOGY | 第40-50页 |
| ·Brief introduction to the research | 第40-41页 |
| ·Research questions | 第41页 |
| ·Data collection | 第41-50页 |
| ·Preliminary interviews | 第42-43页 |
| ·Questionnaires | 第43-47页 |
| ·Tape recording | 第47-50页 |
| CHAPTER Ⅳ ANALYSES AND FINDINGS | 第50-84页 |
| ·General situation of the application of vague teacher talk in CCEC | 第50-54页 |
| ·The necessity of exploring the general situation in CCEC | 第50-51页 |
| ·The analyses and findings from interviews | 第51-52页 |
| ·The analyses and findings from questionnaires | 第52-53页 |
| ·The summary on the general situation in CCEC | 第53-54页 |
| ·Application of vague teacher talk in every teaching process of CCEC | 第54-67页 |
| ·Leading in | 第55-56页 |
| ·Asking questions | 第56-58页 |
| ·Answering questions | 第58-59页 |
| ·Giving and explaining lectures | 第59-62页 |
| ·Making comments and summaries | 第62-64页 |
| ·Persuading | 第64-65页 |
| ·Evaluating | 第65-67页 |
| ·Key pragmatic function of vague teacher talk in CCEC | 第67-73页 |
| ·The analyses and findings from questionnaires | 第67-69页 |
| ·The analyses and findings from tape recording | 第69-72页 |
| ·The summaries on key pragmatic function | 第72-73页 |
| ·Analyses on the factors which influencing teachers' use of vague language in CCEC | 第73-80页 |
| ·The analyses and findings from questionnaires | 第74-77页 |
| ·The analyses and findings from tape recording | 第77-78页 |
| ·The summaries on key influential factors | 第78-80页 |
| ·Suggestions on teachers' use of vague language in CCEC | 第80-84页 |
| CHAPTER Ⅴ CONCLUSION | 第84-89页 |
| ·Major finding and implications | 第84-87页 |
| ·Major finding | 第84-85页 |
| ·Implication to the studies on vague language | 第85-86页 |
| ·Implication to the teaching in CCEC | 第86-87页 |
| ·Limitations and suggestions | 第87-89页 |
| BIBLIOGRAPHY | 第89-93页 |
| 攻读硕士学位期间发表的论文 | 第93-94页 |
| ACKNOWLEDGEMENTS | 第94-97页 |
| APPENDIX Ⅰ | 第97-98页 |
| APPENDIX Ⅱ | 第98-102页 |
| APPENDIX Ⅲ | 第102-106页 |
| APPENDIX Ⅳ | 第106-119页 |
