英语语法分词结构{PPT}

r slam. 她听见门砰地一声关上了。(一次性动作,已完成)Р4. 分词作状语?分词作状语时表示的动作是主语的一部分,与谓语表示的动作(或状态)是同时或几乎同时发生的,有时先于谓语动词的动作发生。分词作状语一般均要用逗号同其他成分隔开。分词可以做时间、原因、方式、条件、结果、目的、让步等状语。例如:?Defeated, they withdrew into the valley. (分词动作先发生)?Locked up, he had no way to escape. (分词动作同时发生)?a. 做时间状语相当于when引导的从句?这类状语通常放在句子前半部分,若两个动作同时发生,可在分词前用when或while表示强调。?Hearing the news, they immediately set for shanghai. (when they heard the news, they…)听到这个消息,他们立即出发去上海了。Р注意:?1) 做时间状语的分词短语也可以放在主语后或句尾,放在句尾时最强调。例如:?Having written an important letter, I listened to the music for a while.?I, having written an important letter, listened to the music for a while.(最不强调)?I listened to the music for a while, having written an important letter.(最强调)?写完一封重要的信之后,我听了一会音乐?2)如果分词表示的动作紧接着谓语动作之后发生,分词应放在句尾。例如:?She sat down, listening to their talk. 她坐下来,听他们谈话。