文摘
英文文摘
论文说明：List of figures and tables,List of abbreviations
Acknowledgements
Chapter 1 Introduction
1.1 Overview
1.2 Need of the study
1.3. Organization of the thesis
Chapter 2 Literature Review
2.1 Key terms and basic concepts
2.1.1 Concepts and definitions of“task”
2.1.2 Classification of tasks
2.1.3 Types of task
2.1.4 The definition of TBLT
2.1.5 The rationale and principles of TBLT
2.1.6 The PPP model
2.1.7 Framework of TBLT
2.1.8 The implementation of TBLT
2.2 Theoretical bases
2.2.1 SLA theories
2.2.2 Social constructivism and humanism
2.3 Previous studies on TBLT
2.3.1 Studies abroad
2.3.2 Studies at home
Chapter 3 Methodology
3.1 Research questions
3.2 Research design
3.2.1 Quantitative research design
3.2.2 Qualitative research design
Chapter 4 Results and Discussion
4.1 Results of the quantitative research
4.1.1 Results of the pre-test
4.1.2 Results of the post-test
4.1.3 Results of the questionnaire
4.2 Discussion
4.2.1 The effect of TBLT
4.2.2 The effect of TBLT on students at different proficiency levels
4.2.3 Analysis of the differences brought about by the two models
Chapter 5 Conclusion
5.1 Major findings
5.2 Pedagogical implications
5.3 Limitations and suggestions for future research
References
Appendix
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