信息预设是说话者在话语交际过程中基于话语的关联性而对语句形式所作的处理。
Informative presupposition is due to the different language forms the speaker has adopted for sake of relevance of his utterance.
动态语用学关注话语内在的动机，即人们在相互交际的动态过程中为什么选择某些语言形式而不是另一些语言形式来表达自己的思想感情。
Dynamic pragmatics focuses on the internal motives of utterances, that is, why people choose one kind of language form instead of another one to express their feelings in the intercommunication.
关联理论将语用学的重点从话语的产生转移到话语的理解，指出话语交际是明示—推理的过程。
Relevance theory shifts the key point of pragmatics from utterance production to utterance understanding and points out that language communication is an ostensive-inferential process.
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