“把”字句式中“把”的賓語一般認爲是有定的,但實際上也存在由無定名詞短語充當的情况,本文討論這種無定“把”字句式的生成機制問題,認爲無定“把”字句是由“把”字賓語的弱話題性及其語義上原型受事的不確定性特徵雙重作用的産物,其原型受事的不確定性特徵是無定“把”字句的根本生成機制。 The object of “put ” in the “” sentence is generally considered to be definite, but in fact there is also the situation of being acted by indefinite noun phrase. The problem of the formation mechanism of the type is regarded as the product of the double role of the weak topic of the “” “object and the uncertainty of the semantic prototype. The uncertainty characteristic is the fundamental mechanism of generating ”ba" sentences.