任务类型对英语口语复杂度、准确度、流利度影响的纵向研究  

Effects of task type on complexity,accuracy and fluency in English learners’oral production:A longitudinal study

作　　者：李茶[1] 隋铭才 Li Cha;Sui Mingcai

机构地区：[1]东北师范大学外国语学院,吉林长春130024 [2]东北师范大学人文学院国际学院,吉林长春130117

出　　处：《西安外国语大学学报》2020年第3期47-52,共6页Journal of Xi’an International Studies University

基　　金：教育部人文社会科学研究青年基金项目“中国大学生英语口语发展与英语口语自我效能互动关系的跟踪研究”(项目编号:20YJC740018)的阶段性研究成果。

摘　　要：本研究基于复杂动态系统理论,跟踪六名英语学习者15周内复述和叙述任务中的口语表现,旨在探索任务类型对口语复杂度、准确度、流利度(CAF)的影响。多元方差分析和可视化轨迹图表明:任务类型的影响有规律性特征,六名学习者复述任务中词汇复杂度都高于叙述任务;任务类型的影响存在个体差异,与CAF初始值和发展阶段有关;任务类型对CAF的影响呈现出动态稳定性和动态变化性,复述任务中各项指标的波动幅度一般大于叙述任务。In light of complex dynamic systems theory,this longitudinal study aims to investigate the effects of task type on complexity,accuracy and fluency(CAF)by tracking six English learners’oral production in retelling and topic-given narration task within 15 weeks.MANOVA and visual double-line graphs have been employed to present and analyze data in this re-search.Results show that there are common features in task type,for instance,lexical complexity in retelling tasks is highe r than that in narration tasks for all learners.There also exist effectsinter-individual differences in task type effects,which is re-late dwith CAF initial levels and development stage.Task type effects change with time in two patterns:stability and variabili-ty.Finally,the fluctuations of oral production trajectories are greater in retelling tasks than those in narration tasks.

关 键 词：任务类型 复杂度 准确度 流利度 

分 类 号：H319[语言文字—英语]