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英语情态动词的时态表征 被引量:2
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作者 岳好平 莫友元 《云梦学刊》 2001年第5期114-115,共2页
针对英语情态动词有无时态形式 ,这一语言学界存在着较大争议的问题 ,从形式表征和语义表征方面入手 ,借助语言学历时及共时的观点 。
关键词 情态动词 时态 时态表征 形式表征 语义表征 英语
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Interpretation of English Ambiguous VerbLocative Prepositional Phrase Constructions by Mandarin and Spanish Speakers:Evidence for the Representational Deficit Hypothesis
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作者 胡阳 《Chinese Journal of Applied Linguistics》 2014年第3期334-357,F0003,共25页
This paper presents an empirical study of the acquisition of English ambiguous verb-locative prepositional phrase constructions (VLPPs) by adult Mandarin and Spanish speakers. This study assumes that the semantic pr... This paper presents an empirical study of the acquisition of English ambiguous verb-locative prepositional phrase constructions (VLPPs) by adult Mandarin and Spanish speakers. This study assumes that the semantic properties of the target VLPPs that relate to change-of-location in sentences such as The boat floated under the bridge arise from an uninterpretable syntactic feature selected by English but unselected by Mandarin Chinese and Spanish. Results obtained from an animated cartoon selection task indicate that neither the Mandarin nor the Spanish speakers at any level of English proficiency possess native-like interpretative knowledge. Tense/ Aspect effects on the interpretation of the target constructions by Spanish speakers were also found. These results are interpreted as consistent with the Representational Deficit Hypothesis view (Hawkins, 2003, 2005) of adult second language acquisition. 展开更多
关键词 English ambiguous VLPPs L1 Mandarin Chinese L1 Spanish uninterpretable features in adult L2 acquisition Tense/Aspect representational deficit hypothesis
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A new approach to the time evolution of characteristic function of the density operator obtained by virtue of thermal entangled state representation 被引量:3
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作者 CHEN Feng FAN HongYi 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2012年第11期2076-2080,共5页
Like the progress made by Dirac that wave function ψ(x) was reformed as x |ψ,where x| is the coordinate representation,we endow the characteristic function χλ = Tr(e λa-λaρ) of density operator ρ with the mean... Like the progress made by Dirac that wave function ψ(x) was reformed as x |ψ,where x| is the coordinate representation,we endow the characteristic function χλ = Tr(e λa-λaρ) of density operator ρ with the meaning of wave function of |ρ in the thermal entangled state η| representation in the doubled Fock space,χλ = η = λ|ρ,where |ρ = ρ|η = 0.We find the time evolution of χλ can then be directly and neatly obtained via this approach.The way of deriving the density operator from η = λ | ρ is also presented. 展开更多
关键词 characteristic function density operator master equations thermal entangled state representation
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