本文讨论"了_2"对事件的存在量化功能及标记事件焦点的功能。首先,区分"了_2"和"了_1"在是否能存在量化事件上的不同,指出"了_2"具有存在量化事件的功能,而"了_1"只是完成体标记,其作用是给事件变量提供限制,所表达的存在事件义只是一种语用推导;然后,分析"了_2"标记事件焦点的功能,并比较"了_2"句和"了_1"句焦点结构的异同,指出"了_2"的存在量化事件功能与其事件焦点标记功能之间的语义关联;最后,将"了_2"句与同样指涉存在事件的表结果或状态的动补结构以及"的"字事态结构进行比较,指出"了_2"句和这些结构在存在事件表达上的异同,通过"了_2"与这些结构的不相容现象进一步证实"了_2"的事件焦点标记功能。
This paper discusses the functions of le2 as an existential quantifier over e- vent variables and as a marker of event foci. The first part of the paper elaborates on the differences between le2 and lel with respect to whether they can quantify over event varia- bles or not. It is pointed out that le2 can serve as an existential quantifier over event varia- bles while lel is merely a perfective marker constraining event variables and thus conve- ying an existential event through pragmatic mechanism. The paper then discusses the function of le2 as a marker of event loci, arguing that there exist obvious differences be- tween the focus structure of/e2-sentences and that of lel-sentences, which can be ascribed to whether they are able to function as an event quantifier or not. The paper ends with a comparison of le2-sentences with verb-resultative constructions and de-constructions of state of affairs, arguing that unlike le2-sentences, the existential property of events in the other two constructions is presupposed but not asserted, which is the main reason why le2 is incapable of occurring in such constructions.