关键词: 重庆方言；“遇得到（X）”构式；共时特征；历时演变；理据

Abstract: Idiomatic construction has been attached great importance in cognitive linguistics. However， this kind of construction in dialects needs further exploration. This paper attempts to probe into the synchronic and diachronic characteristics and motivation of “yudedao （X）” construction in Chongqing dialect. The synchronic features are analyzed through the linguistic features， i.e.， phonological and syntactical form and meaning/function. And then the semantic change of the said construction is explored and the evolution path is drawn out. Finally， the motivation of “yudedao （X）” construction is revealed on the basis of the utterance selection theory.

Key words: Chongqing dialect; “yudedao （X）” construction; synchronic characteristics; diachronic changes; motivation