一语言最基本的功能是交际功能。随着人类社会的进步和科学技术的发展,人们的交际范围越来越厂,有关言语交际的研究也日益受到重视,“语气”范畴的研究就是其中的一个新课题。所谓“语气”,指根据交际目的的不同而表达出来的句子的不同口气。作为音形义的有机结合体,语言学上一般视其为语法范畴之一,亦称“情态”或“式”(Modality)。比如汉语“开会”这个词组,在句子中可有“开会。”“开会?”“开会!”“开会 The most basic function of a language is communicative function. With the progress of human society and the development of science and technology, the scope of people’s communication is getting more and more. The research on verbal communication is also paid more and more attention. The research on the category of “tone” is one of the new topics. The so-called “tone” refers to the different tone of the sentence expressed according to the purpose of communication. As an organic combination of phonetic meanings, linguistics is generally regarded as one of grammatical categories, also known as “Modality” or “Modality.” For example, the phrase “meeting” in Chinese may include “meeting.” “Meeting?” “Meeting!” "Meeting