指示代词this, these, that, those的核心区别在于距离远近与单复数:this/these表近指,分别搭配单/复数名词;that/those表远指,分别搭配单/复数名词。指代人时,近距离介绍用this,询问远处用that,电话中this用于自我介绍、that用于询问对方。指代上文内容避免重复时,单数用that,复数用those。时间维度上,this常指当前或近期,that指向过去。口语中these/those可省略名词,this/that可表强调评价。结合距离、数量和语境即可准确运用这四...