| Chinese Abstract | 第1-4页 |
| English Abstract | 第4-6页 |
| Acknowledgements | 第6-7页 |
| Contents | 第7-10页 |
| 1 Introduction | 第10-13页 |
| ·Background | 第10-11页 |
| ·Research questions and significance of the study | 第11-13页 |
| 2 Theoretical Bases | 第13-25页 |
| ·Social constructivism | 第13页 |
| ·The zone of proximal development | 第13-15页 |
| ·The learning theories of second/foreign language | 第15-17页 |
| ·Behaviorism: the second/foreign language view | 第15-16页 |
| ·Cognitive theory: a mew psychological approach | 第16页 |
| ·The acquisition-learning hypothesis | 第16页 |
| ·The second/foreign language interactionist view | 第16-17页 |
| ·The approaches and methods in second/foreign language teaching | 第17-24页 |
| ·The direct method | 第17页 |
| ·Communicative teaching approach | 第17-18页 |
| ·Social Interaction teaching approach | 第18-24页 |
| ·Task-based approach motivating interaction | 第24-25页 |
| 3 Rationales for interaction and Lesson-tasks Planning | 第25-33页 |
| ·Definition of tasks and task-based teaching approach | 第25-28页 |
| ·Definition of task | 第25页 |
| ·Tasks in foreign language teaching | 第25-27页 |
| ·Patterns of task | 第27页 |
| ·Definition of task-based teaching approach | 第27-28页 |
| ·Teacher's roles in task-based interaction | 第28-30页 |
| ·Lesson-task planning | 第30-33页 |
| ·A framework for analyzing communicative tasks | 第30-31页 |
| ·The principles of planning lesson tasks | 第31页 |
| ·Task types | 第31页 |
| ·Standards of good lesson tasks | 第31-33页 |
| 4 Analysis of the Problems with Interactive Teaching and Its Causes | 第33-38页 |
| ·Understanding of interactive teaching | 第33页 |
| ·Significance of interactive teaching | 第33-35页 |
| ·Problems with students' interactive competence in interactive teaching | 第35-36页 |
| ·Lack of motivation of displaying knowledge | 第36页 |
| ·Inadequate chances to use English | 第36页 |
| ·Causes of interaction problems | 第36-38页 |
| ·Disadvantages of teacher-centered teaching approach | 第36-37页 |
| ·Lack of strategies in teachers' classroom teaching | 第37-38页 |
| 5 An Action Research to Improve Interaction in Classrooms Teaching Through Teachers' Lesson-task Planning | 第38-43页 |
| ·Restatement of the problem and hypothesis | 第38页 |
| ·Objectives | 第38页 |
| ·Design | 第38-39页 |
| ·Subject | 第39页 |
| ·Procedure | 第39页 |
| ·Instrument | 第39-40页 |
| ·Methodology | 第40页 |
| ·Data-collection and Result | 第40-41页 |
| ·Questions on the attitudes towards English | 第40-41页 |
| ·Questions on the performance in the English classroom | 第41页 |
| ·The students' participation in class(observed and recorded by my colleague | 第41页 |
| ·Analysis | 第41-43页 |
| 6 Application of Improving Interaction in Classrooms Teaching Through Teachers' Lesson-task Planning | 第43-50页 |
| ·Design of Listening Tasks | 第43-44页 |
| ·Design of Reading Tasks | 第44-47页 |
| ·Pre-reading | 第44-45页 |
| ·While-reading | 第45-46页 |
| ·Post-reading | 第46-47页 |
| ·Result of the post-questionnaire and the application | 第47-50页 |
| ·Result of the post-questionnaire | 第47-48页 |
| ·The students' participation in class(observed and recorded by my colleague) | 第48页 |
| ·Result of the application | 第48-50页 |
| 7 Conclusion | 第50-54页 |
| ·Findings | 第50-52页 |
| ·Limitations | 第52-54页 |
| References | 第54-57页 |
| Appendix Ⅰ | 第57-58页 |
| Appendix Ⅱ | 第58-59页 |
