| Acknowledgements | 第1-9页 |
| List of Tables | 第9-10页 |
| Abstract | 第10-12页 |
| 内容摘要 | 第12-13页 |
| Chapter One Introduction | 第13-16页 |
| ·Research orientation | 第13-14页 |
| ·Research Rationale | 第14-16页 |
| Chapter Two Literature Review | 第16-28页 |
| ·Theoretical studies on TBLT | 第16-25页 |
| ·Definitions of task and TBLT | 第16-18页 |
| ·Willis's framework of TBLT | 第18-21页 |
| ·Pre-task | 第18页 |
| ·Task cycle | 第18-19页 |
| ·Language focus | 第19-20页 |
| ·Willis's view on "Language analysis" | 第20-21页 |
| ·Ellis's study on "planning" | 第21-22页 |
| ·Pre-task planning | 第21页 |
| ·Within-task planning | 第21-22页 |
| ·Components and features of task | 第22-25页 |
| ·Components of tasks | 第22-24页 |
| ·Features of tasks | 第24-25页 |
| ·Previous studies on TBLT | 第25-26页 |
| ·Researches by non-Chinese scholars | 第25-26页 |
| ·Researches by Chinese scholars | 第26页 |
| ·Limitations of previous studies | 第26-28页 |
| Chapter Three Research Design | 第28-41页 |
| ·Research question | 第28-29页 |
| ·Hypothesis | 第29页 |
| ·Method | 第29-41页 |
| ·Subjects | 第29-33页 |
| ·Contrast tests on vocabulary score differences among 3 groups in pretest | 第30-32页 |
| ·Contrast tests on grammar score differences among 3 groups in pretest | 第32-33页 |
| ·Contrast tests on total score differences among 3 groups in pretest | 第33页 |
| ·Materials | 第33-34页 |
| ·Teaching materials | 第33-34页 |
| ·English vocabulary and grammar pre-test and post-test | 第34页 |
| ·Procedure | 第34-39页 |
| ·Pre-experiment interview on teachers' TBLT practice | 第34-35页 |
| ·Pilot test on difficulty equivalence of pre-test and post-test | 第35-36页 |
| ·Pre-test | 第36页 |
| ·TBLT experiment | 第36-38页 |
| ·Post-test | 第38-39页 |
| ·Measures for data collection and analysis | 第39-41页 |
| ·Data collection methods | 第39页 |
| ·Data analysis methods | 第39-41页 |
| Chapter Four Results and Discussion | 第41-48页 |
| ·Results | 第41-45页 |
| ·Contrast tests on vocabulary score differences among 3 groups in posttest | 第42-43页 |
| ·Contrast tests on grammar score differences among 3 groups in posttest | 第43-44页 |
| ·Contrast tests on total score differences among 3 groups in posttest | 第44-45页 |
| ·Discussion | 第45-48页 |
| ·Posttest vocabulary performances related to 4 sub-questions | 第45-46页 |
| ·Posttest grammar performances related to 4 sub-questions | 第46页 |
| ·Posttest total performances related to 4 sub-questions | 第46-48页 |
| Chapter Five Conclusion | 第48-51页 |
| ·Findings | 第48页 |
| ·Implications | 第48-49页 |
| ·Theoretical implications | 第49页 |
| ·Practical implications | 第49页 |
| ·Limitations | 第49-51页 |
| References | 第51-54页 |
| Appendix A Vocabulary and Grammar Pretest | 第54-59页 |
| Appendix B Vocabulary and Grammar Posttest | 第59-64页 |
| Appendix C Class Reading Tasks | 第64-67页 |
| Appendix D Unscrambling Tasks | 第67-70页 |
| Appendix E Lesson Plan for control group | 第70-72页 |
| Appendix F Lesson Plan for Experimental Group 1 | 第72-74页 |
| Appendix G Lesson Plan for Experimental Group 2 | 第74-76页 |
| Appendix H Data of Survey on Pre- and Post-tests' Difficulty | 第76-77页 |
| Appendix I Subjects" Performance Data in Pretest and Posttest | 第77-79页 |
