精选优质文档-倾情为你奉上介词for用法归纳用法1：(表目的)为了。如：They went out for a walk. 他们出去散步了。What did you do that for? 你干吗这样做？Thats what were here for. 这正是我们来的目的。Whats she gone for this time? 她这次去干什么去了？He was waiting for the bus. 他在等公共汽车。【用法说明】在通常情况下，英语不用 for doing sth 来表示目的。如：他去那儿看他叔叔。误：He went there for seeing his uncle.正：He went there to see his uncle.但是，若一个动名词已名词化，则可与 for 连用表目的。如：He went there for swimming. 他去那儿游泳。(swimming 已名词化)注意：若不是表目的，而是表原因、用途等，则其后可接动名词。(见下面的有关用法)用法2：(表利益)为，为
