中国博士生论文摘要中情态动词can的词汇语法剖面研究

Lexical-grammatical profile of modal verb can in Chinese PhD students'abstracts

本文以“词汇语法剖面”研究框架为基础,考察中国理工学科博士生学术论文摘要中情态动词can的搭配、词块、句法范围和语义韵等界面特征。研究发现中国博士生过多使用can和we+can,左搭配中立场名词的频率较高;所用词块类别多,反映出过度程式化特点;句法范围方面,中国博士生和学科专家均倾向使用主动语态,少有涉及can后的动作施事者;与学科专家作者不同的是,语义选择方面中国博士生使用can表意能动性,较少表达模糊性知识判断。博士生撰写的摘要趋向体现can的消极语义色彩,体现出中国博士生语法知识和体裁意识的不足。

s,with more left-col-locate stance nouns;Chinese PhD students employ more chunks of can,which indicates the stereotype of chunks.Chinese PhD students tend to use active voice,but the agents of the verbs following can are seldom mentioned.Different from expert writers,Chinese PhD students use can semantically more to show ability with less consideration of hedging.Chinese PhD students express negative semantic prosody when using can,which is the manifestation of their lack of grammatical knowledge and stylistic awareness.,