| Acknowledgements | 第1-6页 |
| 摘要 | 第6-8页 |
| ABSTRACT | 第8-12页 |
| List of tables and ifgures | 第12-13页 |
| List of abbreviations | 第13-14页 |
| 1. Introduction | 第14-18页 |
| 2. Literature Review | 第18-42页 |
| ·Task-based language teaching(TBLT) | 第18-30页 |
| ·The definition of task | 第19-21页 |
| ·The rationale of TBLT | 第21-26页 |
| ·The framework of TBLT | 第26-29页 |
| ·Task types and their characteristics | 第29-30页 |
| ·Vocabulary learning and teaching | 第30-40页 |
| ·Dimensions of lexical competence | 第31-35页 |
| ·Vocabulary acquisition process | 第35-37页 |
| ·Explicit and implicit vocabulary learning and teaching | 第37-38页 |
| ·Current situation of vocabulary learning and teaching | 第38-40页 |
| ·Relevant studies upon task-based vocabulary instruction | 第40-42页 |
| 3. Research Design | 第42-48页 |
| ·Research questions and hypotheses | 第42-43页 |
| ·Participants and materials | 第43-44页 |
| ·Research instruments | 第44-48页 |
| ·Vocabulary Levels Test(VLT) | 第44-46页 |
| ·Word associatcs test | 第46页 |
| ·English proficiency test | 第46-47页 |
| ·Questionnaire | 第47-48页 |
| 4. Research Implementation | 第48-56页 |
| ·The pre-test | 第48页 |
| ·The procedure of the treatment | 第48-53页 |
| ·The approach for the experimental class | 第49-52页 |
| ·The approach for the control class | 第52-53页 |
| ·The post-test | 第53-54页 |
| ·Data collection | 第54-56页 |
| 5 Research Results and Discussion | 第56-71页 |
| ·The results and dicussion of the pre-test | 第57-61页 |
| ·The results and dicussion of the post-test | 第61-66页 |
| ·The results and dicussion of the questionnaire | 第66-71页 |
| 6. Conclusion | 第71-78页 |
| ·Major findings | 第71-74页 |
| ·Implications and suggestions | 第74-77页 |
| ·Limitations | 第77-78页 |
| References | 第78-85页 |
| Appendices | 第85-114页 |
| Appendix Ⅰ Vocabulary Levels Test | 第85-89页 |
| Appendix Ⅱ Word Associates Test | 第89-92页 |
| Appendix Ⅲ English Proficiency Test in the pretest | 第92-97页 |
| Appendix Ⅳ English Proficiency Test in the post-test | 第97-102页 |
| Appendix Ⅴ Questionnaire | 第102-103页 |
| Appendix Ⅵ Scores of VLT and corresponding VS in the pretest | 第103-105页 |
| Appendix Ⅶ Scores of VLT and corresponding VS in the post-test | 第105-107页 |
| Appendix Ⅷ Scores of Word Associates Test in pretest and post-test | 第107-108页 |
| Appendix Ⅸ Scores of English Proficiency Test in pretest and post-test | 第108-109页 |
| Appendix Ⅹ Sample of teaching procedures for the experimental class | 第109-113页 |
| Appendix Ⅺ Sample of teaching procedures for the control class | 第113-114页 |
