吕叔湘先生在他主编的《现代汉语八百词》中，将“常常省略虚词”作为汉语语法的特点之一，其中举到省略介词的例子：他能左手写字。／我前头带路。①本文在吕先生的启发下，讨论介词省略的范围、条件及语用意义。为了说明的方便，将介词短语记作“佃”；将省略介词的结构记作 In his 800 Words in Modern Chinese, Mr. Lv Shuxiang uses “often omitting function words” as one of the characteristics of Chinese grammar, in which he omits the example of preposition: he can write with his left hand. / I lead the way. ① This article, under the inspiration of Mr. Lu, discusses the scope, conditions and pragmatic implications of the omission of prepositions. For the sake of explanation, the prepositional phrase is recorded as “tenant”; the structure of the omitted preposition is recorded as