Searle's five basic kinds of utterances 5)Declarations(宣告类)：which effect immediate changes in the institutional state of affairs and which tend to rely on elaborate extra-linguistic institutions (communicating,declaring war,firing from employment...) Three basic sentence types: interrogative-questioning; imperative-requestioning; declarative一stating5) Declarations (宣告类): which effect immediate changes in the institutional state of affairs and which tend to rely on elaborate extra-linguistic institutions (communicating, declaring war, firing from employment…) Three basic sentence types: interrogative—questioning; imperative—requestioning; declarative—stating. Searle’s five basic kinds of utterances