引言“是……的”句式是汉语中非常复杂的一个句式,原因有三:其一,这个句式的固定构件“是”和“的”词性和用法多样;其二,这个句式的形式丰富,变化类型多样;其三,这个句式口语化特征显著,使用过程中有很多省略成分的现象。近几十年来,语法工作者们对这一句式进行了大量的研究,但“是……的”句式仍存在一些问题,下面列举主要的三点:第一,“时”和“体”的模糊性;第二,“是”和“的”性质的不确定性;第三,未形成具体的使用规则。 Introduction The sentence pattern of “is ......” is a very complicated sentence in Chinese. There are three reasons for this: First, the fixed components of this sentence are both “part” and “part of” Second, the form of this sentence is rich in variety and variety; Third, this sentence has obvious colloquial features and many omissions in use. In recent decades, grammatical practitioners have done a lot of research on this sentence pattern, but there are still some problems in the sentence pattern of “is”. Here are three main points: First, And “body ” ambiguity; second, “yes ” and “” nature of the uncertainty; third, did not form a specific rules of use.