SpeechActTheoryKERISIntroductionSpeechActTheoryisamajortheoryofbothlanguagephilosophyandpragmatics.ItwasoriginallyputforwardbyordinarylanguagephilosophyJohnL.AustinandJohnR.Searleintheearlyfiftiesofthelastcentury.Theessenceofthistheorymainlyconcernsthatlanguageisoftenusedto“dothings”,toperformactsandtoemphasizereallanguageusageinactualsituation.Itchallengesthe“truth-value”statementandopensa...