文章以言语行为理论为基础，描述了教师语言在外语教学中的语言形式及其语用功能。
Based on the speech act theory, the thesis describes the language forms and their pragmatic functions of teacher talk in foreign language classrooms.
本文从间接言语行为的角度，分析了英语委婉语的避讳、礼貌和掩饰三种交际功能。
This paper analyses the communicative functions of euphemism from the Angle of indirect speech act: avoidance of taboo words, politeness and withholding information.
辞格的这一施事功能事实有力地证明了言语行为理论对于分析辞格的可行性。
Such illocutionary function of figures of speech forcefully demonstrates that figurative utterances can be described and analyzed within the framework of speech act theory.
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