情态动词的使用不仅使话语变得更委婉、礼貌，而且能达到交际目的的成功实现。运用Austin和Searle的言语行为理论对英语情态动词的语用特征进行初步的分析，可以加深对情态动词的理解和使用，提高语言使用的正确性，达到实际的交际意图。%The use of modal verb can not only make the utterance more euphemistic and polite, but also achieve the communicative goal successfully. By using the speech act theory of Austin and Searle to give a preliminary analysis of modal verb's pragmatic features, we can deepen our understanding and use of modal verb, improve the correctness of language use and reach the communicative intention.
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