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英文文摘
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Chapter Ⅰ Introduction
1.1 Research Background
1.2 Research Purpose
1.3 Theoretical Framework of the Present Study
1.4 Organization of the Thesis
Chapter Ⅱ Literature Review
2.1 The Relationship between LT (Language Testing) and SLA (Sccond Language Acquisition)
2.2 Communicative Language Ability in Language Testing
2.3 Task-based Language Writing Test
2.4 Task Type
2.5 Task Difficulty
2.6 Task-based Researches
Chapter Ⅲ Research Design
3.1 The Experiment
3.1.1 The participants
3.1.2 The design of writing tasks
3.1.3 Research questions
3.1.4 Research procedures
3.2 Data Analysis
3.2.1 The difficulty of the task types
3.2.2 The effect of task difficulty on students' writing performance
3.2.3The relationship between students' holistie scores and analytic scores
3.2.4The relationship between students' holistic scores and their self-assessment of the tasks
Chapter Ⅳ Conclusion
4.1 Findings
4.2 The Limitations of the Present Study
4.3 Implications
References
Appendix
Acknowledgements
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