Study on Polysemy of Prepositions from the Perspective of Cognitive Semantics——a Case Study of Preposition On and Over

摘要

Prepositions in English language have the characteristics of polysemy,and their semantics meanings have significant abstract features.Based on the perspective of cognition and taking on and over as examples,this thesis uses the transformation of image schema and its metaphorical projection to provide an explanation for the polysemy of prepositions.In-depth exploration of the polysemy of English prepositions aims to further interpret the internal cognitive system generated by specific meanings,and help learners to fully grasp the extension of the meaning of prepositions.