关于现代汉语学中各种句子的性质。在定义上比较严谨科学,既有功能上的定性,也有语形上的陈述,更有语义上的要求。“究竟”、“毕竟”是现代汉语中比较特殊的一类语气副词,在实际语言运用中分布范围广,使用频率高。通过对“毕竟”“究竟”的句法、语用及语体色彩等方面的特点进行对比分析研究。从而为汉语言教学提供参考。 About the Nature of Various Sentences in Modern Chinese. In the definition of more rigorous science, both functional qualitative, but also the language of statements, more semantic requirements. “After all ”, “After all ” is a special kind of modal adverbs in modern Chinese. It has a wide range of usage and high frequency of use in the practical application of language. Through comparative analysis of “” “after all ” syntactic, pragmatic and stylistic features and so on. Thus provide a reference for Chinese teaching.