149 elementary school pupils were selected as the subjects for this study, to whom five tracking assessments of their verbal vocabulary knowledge were given over a period of three years. In addition, a latent variable...149 elementary school pupils were selected as the subjects for this study, to whom five tracking assessments of their verbal vocabulary knowledge were given over a period of three years. In addition, a latent variable growth model was adopted to explore grades 1-3 elementary school pupil's developmental trajectory for verbal Chinese vocabulary knowledge. The phonological awareness, homomorphic morpheme awareness, compound morpheme awareness and family socioeconomic status(SES) on the students' verbal vocabulary knowledge were also investigated. The ndings are: 1, grades 1-3 elementary school pupils verbal Chinese vocabulary knowledge developmental trajectory shows a curvilinear form, of which linear development is trended in the first two years, and as of the third year the developmental rate doubles the previous two years, whereas individual di erences are remarkable in both the initial level and the growth rate; 2, awareness of phonetics, homomorphic morphemes and complex morphemes as well as the family socioeconomic status can be referred to for a positive forecast of the students' initial level of verbal vocabulary knowledge; 3, only the awareness of homomorphic morphemes and the family socioeconomic status can be applied to a positive prediction of the students' verbal vocabulary knowledge growth rate..展开更多
This paper explores two fundamental issues concerning the inter-textual vocabulary growth patterns for Marine Engineering English,viz.vocabulary growth models and newly occurring vocabulary distributions in cumulative...This paper explores two fundamental issues concerning the inter-textual vocabulary growth patterns for Marine Engineering English,viz.vocabulary growth models and newly occurring vocabulary distributions in cumulative texts.On the basis of the DMMEE(Dalian Maritime University Marine Engineering English)corpus,four mathematical models(Brunet's, Guiraud's,Tuldava's,and Herdan's models)are tested against the empirical vocabulary growth curve for Marine Engineering English.A new growth model based on the logarithmic function and the power law is presented.The theoretical mean vocabulary size and the 95% upper and lower bound values are calculated and plotted as functions of the sample size.Being significant in explicit EFL teaching and learning,the new growth model can make accurate estimates not only on the vocabulary size and its intervals for a given textbook but also on the volume of texts that are needed to produce a particular vocabulary size.展开更多
本文基于Brown语料库的100万词的数据,考察科技英语的篇际词汇增长模型,以篇章为计量单位,描述科技英语文本中词汇量V(N)与累积文本容量N之间的函数关系。通过对幂函数和对数函数的比较分析,构建了新的词汇增长模型,并应用此模型推导出...本文基于Brown语料库的100万词的数据,考察科技英语的篇际词汇增长模型,以篇章为计量单位,描述科技英语文本中词汇量V(N)与累积文本容量N之间的函数关系。通过对幂函数和对数函数的比较分析,构建了新的词汇增长模型,并应用此模型推导出科技英语的理论词汇增长曲线及其95%双向置信区间。本研究属于计算语言学的基础理论研究,反映了语言的经济律,有深刻的理论价值;另外,本文对英语作为外语的教学(English as Foreign Language,简称EFL),特别是词汇教学和教材编写,也有一定的指导意义。展开更多
基金project No.17NDJC120YB of philosophy and social sciences under the planning of Zhejiang provincea Youth Fund research project No.16YJC190002 of humanities and social sciences under the planning of the Ministry of Educationa key research project No.13&ZD188 of the of the National Social Science Fund of China
文摘149 elementary school pupils were selected as the subjects for this study, to whom five tracking assessments of their verbal vocabulary knowledge were given over a period of three years. In addition, a latent variable growth model was adopted to explore grades 1-3 elementary school pupil's developmental trajectory for verbal Chinese vocabulary knowledge. The phonological awareness, homomorphic morpheme awareness, compound morpheme awareness and family socioeconomic status(SES) on the students' verbal vocabulary knowledge were also investigated. The ndings are: 1, grades 1-3 elementary school pupils verbal Chinese vocabulary knowledge developmental trajectory shows a curvilinear form, of which linear development is trended in the first two years, and as of the third year the developmental rate doubles the previous two years, whereas individual di erences are remarkable in both the initial level and the growth rate; 2, awareness of phonetics, homomorphic morphemes and complex morphemes as well as the family socioeconomic status can be referred to for a positive forecast of the students' initial level of verbal vocabulary knowledge; 3, only the awareness of homomorphic morphemes and the family socioeconomic status can be applied to a positive prediction of the students' verbal vocabulary knowledge growth rate..
文摘This paper explores two fundamental issues concerning the inter-textual vocabulary growth patterns for Marine Engineering English,viz.vocabulary growth models and newly occurring vocabulary distributions in cumulative texts.On the basis of the DMMEE(Dalian Maritime University Marine Engineering English)corpus,four mathematical models(Brunet's, Guiraud's,Tuldava's,and Herdan's models)are tested against the empirical vocabulary growth curve for Marine Engineering English.A new growth model based on the logarithmic function and the power law is presented.The theoretical mean vocabulary size and the 95% upper and lower bound values are calculated and plotted as functions of the sample size.Being significant in explicit EFL teaching and learning,the new growth model can make accurate estimates not only on the vocabulary size and its intervals for a given textbook but also on the volume of texts that are needed to produce a particular vocabulary size.
文摘本文基于Brown语料库的100万词的数据,考察科技英语的篇际词汇增长模型,以篇章为计量单位,描述科技英语文本中词汇量V(N)与累积文本容量N之间的函数关系。通过对幂函数和对数函数的比较分析,构建了新的词汇增长模型,并应用此模型推导出科技英语的理论词汇增长曲线及其95%双向置信区间。本研究属于计算语言学的基础理论研究,反映了语言的经济律,有深刻的理论价值;另外,本文对英语作为外语的教学(English as Foreign Language,简称EFL),特别是词汇教学和教材编写,也有一定的指导意义。
