| Declaration | 第1-4页 |
| Acknowledgements | 第4-5页 |
| Abstract | 第5-6页 |
| 摘要 | 第6-7页 |
| List of Abbreviations | 第7-8页 |
| Contents | 第8-11页 |
| List of Tables | 第11-12页 |
| List of Figures | 第12-13页 |
| Chapter 1 Introduction | 第13-22页 |
| ·Development of electronic dictionaries | 第13-14页 |
| ·Dictionary use and vocabulary learning | 第14-15页 |
| ·Auditory vocabulary and visual vocabulary | 第15-16页 |
| ·Listening environment | 第16-17页 |
| ·Objects of the present study | 第17-18页 |
| ·Terminology of the present study | 第18-19页 |
| ·Significance of the present study | 第19-20页 |
| ·Methodology | 第20页 |
| ·Structure of the thesis | 第20-22页 |
| Chapter 2 Relevant Studies | 第22-42页 |
| ·Dictionary use and vocabulary acquisition | 第22-23页 |
| ·Dictionary use and listening comprehension | 第23-26页 |
| ·Vocabulary and listening comprehension | 第26-33页 |
| ·Vocabulary size for English-native speakers and EFL learners | 第26-27页 |
| ·Word frequency | 第27-30页 |
| ·Vocabulary size and text coverage | 第30-32页 |
| ·Vocabulary size for listening | 第32-33页 |
| ·Auditory vocabulary and listening comprehension | 第33-38页 |
| ·Auditory vocabulary vs visual vocabulary | 第33-36页 |
| ·Vocabulary size and language proficiency | 第36-37页 |
| ·Auditory vocabulary size and listening comprehension | 第37-38页 |
| ·Listening process and strategies | 第38-42页 |
| Chapter 3 Listening environment in the current electronic learner's dictionaries | 第42-62页 |
| ·Multimedia database | 第43-48页 |
| ·Orthographic database | 第48-49页 |
| ·Access system | 第49-54页 |
| ·Vocabulary acquisition | 第54-57页 |
| ·Listening exercise database | 第57-62页 |
| Chapter 4 Survey of dictionary use in listening comprehension | 第62-70页 |
| ·Participants | 第62页 |
| ·Materials | 第62-63页 |
| ·Frequency of dictionary use in listening activities | 第63页 |
| ·Motivations for dictionary use in listening comprehension | 第63-66页 |
| ·Listeners' focus in dictionary use | 第66页 |
| ·Listeners' choice of dictionaries | 第66-67页 |
| ·Electronic dictionaries for listening | 第67-68页 |
| ·Listeners' expectations of future electronic dictionaries | 第68-69页 |
| ·Conclusions | 第69-70页 |
| Chapter 5 Empirical study on auditory vocabulary and listening comprehension | 第70-84页 |
| ·Research questions and hypotheses | 第70-71页 |
| ·Subjects | 第71-72页 |
| ·Instruments | 第72-75页 |
| ·Visual vocabulary test paper | 第72-74页 |
| ·Auditory vocabulary test paper | 第74-75页 |
| ·Listening comprehension test paper | 第75页 |
| ·Procedure | 第75-76页 |
| ·Results and discussion | 第76-82页 |
| ·Difference between auditory vocabulary and visual vocabulary | 第76-80页 |
| ·Correlation between auditory vocabulary and listening comprehension | 第80-82页 |
| ·Conclusion | 第82-84页 |
| Chapter 6 Proposed listening environment for electronic learner's dictionaries | 第84-99页 |
| ·Proposed model for L2 vocabulary acquisition | 第84-86页 |
| ·Proposed structure for electronic learner's dictionaries | 第86-95页 |
| ·Textual database | 第87-88页 |
| ·Auditory database | 第88-90页 |
| ·Listening exercise database | 第90-91页 |
| ·Design of listening exercises | 第91-94页 |
| ·Internet database | 第94页 |
| ·History database | 第94-95页 |
| ·Assess system in the listening environment | 第95-99页 |
| ·Access interface | 第95-98页 |
| ·Filter memory | 第98-99页 |
| Chapter 7 Conclusions | 第99-104页 |
| ·Conclusions of the study | 第99-100页 |
| ·Implications of the study | 第100-101页 |
| ·Limitations of the study | 第101-103页 |
| ·Suggestions for further study | 第103-104页 |
| Bibliography | 第104-114页 |
| Dictionaries: | 第114-115页 |
| Appendixes: | 第115-129页 |
| Appendix A: Questionnaire about Dictionary Use in Listening Comprehension | 第115-118页 |
| Appendix B: A Visual Vocabulary Levels Test Paper | 第118-124页 |
| Appendix C: The Script for the Auditory Vocabulary Test Paper | 第124-126页 |
| Appendix D: Listening Test Paper | 第126-129页 |
