副动词(有的书上叫“介词”)的用法比较近於虚词。各类虚词有一定的共通性,但是每个虚词又往往有自己的特性。这里谈的是偏重在副动词的共通性方面的。 “语法修辞讲话”对副动词的解释是: “把”“被”“从”“对於”等,不能做谓语里的主要成分(如“我把报纸”是不能成句的),我们就管它叫副动词。“在”“往”“向” “到”等,能做谓语里的主要成分,但是经常做次要成分;当 The usage of subverbs (some books are called “prepositions”) is closer to function words. All kinds of function words have certain commonalities, but each function word often has its own characteristics. The emphasis here is on the commonality of deputy verbs. “The grammar rhetoric speech” explains the subverbs: “n”“”“”“”“”, etc., can not be the main component of the predicate (such as “I The newspaper ”can’t be a sentence,“ and we call it a deputy verb. ”In“”“”“”“”“ to ”, etc., can do the main component in the predicate, but often do minor components;