二语书面语句法发展及其动态增长模型建构研究  

On Syntactic Development of L2 Writing and Its Dynamic Growth Model Construction

作　　者：朱慧敏 ZHU Huimin

机构地区：[1]山东财经大学外国语学院,山东济南250014

出　　处：《外语与外语教学》2021年第2期103-114,150,共13页Foreign Languages and Their Teaching

基　　金：国家社会科学基金项目“二语学习者书面语发展变异模型构建与应用研究”(项目编号:18BYY106)的阶段性研究成果。

摘　　要：句法是二语书面语研究的重要维度。目前,对其内部指标动态发展进行历时个案研究并尝试动态建模的还很欠缺。本文以动态系统理论为框架,借助L2SCA和CPA,采用移动极值图、移动相关系数图、动态建模等可视化数据分析手段,辅以回溯访谈,追踪2名英语专业学生4个学期的议论文,考察二语书面语句法子系统内平均T单位长度(MLT)、从句与T单位比(DC/T)、复杂名词性短语与T单位比(CN/T)3个指标的发展轨迹并拟合动态增长模型。研究发现:这3个指标均具变异性、交互性、非线性和不可预测性发展特征,表现为支持、竞争、波动和高度协同,且存在个体差异;变点分析显示,不同学习者的不同指标分阶段显著发展;动态增长模型进一步检验了观测值发展趋势,求解了时间序列指标的增长率,科学预测了学习者在理想条件下最大发展潜力。该研究对二语写作教学与研究有一定的指导意义。Although syntax is an important dimension in L2 writing research,longitudinal case study and dynamic modeling of its internal indicators are inadequate at present.Based on the Dynamic System Theory,this study examines the internal indicators of syntactic development in L2 argumentative writings by 2 English majors in 4 semesters.With the help of L2 SCA and CPA,and by means of visual statistic analysis such as moving min-max graph,moving correlation plot,and supplemented by retrospective interview,the dynamic development trajectories of MLT,DC/T and CN/T are explored,and their dynamic growth models are fitted.The results show that all the three indicators possess the characteristics of variability,interaction,non-linearity and unpredictability during the dynamic development.They are characterized by support,competition,fluctuation,high synergism and individual differences.Change-points analysis indicates that not all indicators develop significantly in stages.The dynamic growth models have verified the developmental trend of observed data,and calculated the growth rate of time series indicators,and scientifically predicted the learners’maximum language learning potentialities under the ideal circumstances.These findings have certain instructive significance for L2 writing teaching and research.

关 键 词：动态系统理论 二语书面语句法发展 变异与交互 动态增长 

分 类 号：H0[语言文字—语言学]