完成体“过1”语法化的动因与机制

The paper introduce the situation that how the perfect aspect “guo1”produced and headed for extinction, and make the statistics analysis of the frequency of “guo1”.It analyze the “verb” and “guo” in the structure “verb+guo” and the reason that how the “Guo1”produce,the reason contain the following factors: the reduction of “guo” in the syntactic position, the reason that something or somebody go from one place to another place, the reason that the events pass on the time line and so on. It elaborates the mechanism of production of “guo1”from cognitive and pragmatic perspectives: metaphor and reasoning.