上海华亭学校中考9年级语法第13讲-非谓语之分词

现在分词和过去分词的用法 【知识梳理1】 现在分词的四种形式 现在分词除了一般式之外，还有完成式和被动式，以动词do为例，现在分词的四种形式见下表： doing being done having done having been done 1) doing：主动/进行 eg. a)I hear someone singing an English song in the next room. Last night, I heard someone singing an English song in the next room. b) The man standing on the platform is waving his hand to us. c) They stood by the roadside, begging. doing所表示的动作与谓语动词同时发生，与逻辑主语是主动关系。 2) being done：被动/进行 eg. The problem being discussed is very important. The museum being built there will be open to the public next year. being done所表示的动作与谓语动词同时发生，但与逻辑主语是被动关系。 3) having done：主动／完成 eg. Having done his homework, Tim played chess with his friends. Having cleaned the classroom, I went home. having done所表示的动作发生在谓语动词之前，与逻辑主语是主动关系。 4) having been done：被动/完成 eg. Having been surrounded by the flood for over a week, the villagers lacked food and medicine. Havi