中文摘要：

语法化学者的＂语义虚化＂和语料库学者的＂非词语化＂概念共同关注词汇意义的逐渐减弱甚至丧失,两种视角在研究中互为裨益。本文以CLEC、CEW、LOCNESS和ICLE语料库中最高频的兼类动词BE和HAVE为例探究中国EFL学习者的动词语义虚化用法特征。研究发现：中国学习者和母语者以及不同水平的中国学习者之间在BE和HAVE的语义虚化、实化、限定和非限定用法的语法属性等多个维度上存在显著差异;语料库语言学视角的文本主题和检索语境分析以及二语习得视角母语迁移和学习者特征因素能够合理解释学习者语义虚化用法特征。研究发现对EFL教学具有一定的启示作用。

英文摘要：

Both concepts of Desemanticization proposed by grammaticalization linguists and Delexicalization by corpus linguists attach importance to the weakening and even loss of lexical meaning of words,which enables the two perspectives to be complementary and benefitial.The study explores the desemanticized use of BE and HAVE,the two most frequent verbs with both semanticed and desemanticized uses in CLEC,CEW,LOCNESS and ICLE.The results reveal that significant differences exist in regard to the desemanticized,semanticized,finite and non-finite uses of BE and HAVE between Chinese EFL learners of two proficiency levels and between Chinese learners and English native college students;the corpus-based analyses of text themes and cotexts and such SLA perspectives as L1 transfer and leaner characteristics can provide reasonable explanations to features of Desemanticization in Chinese EFL learners＇ writing.The findings of this study can shed light on EFL teaching.