有关考研英语语法大全 过去分词没有时态形式的变化，所以这里只讲现在分词的时态形式，考研英语：语法大全(独立结构)。 1)现在分词的时态形式 一般式 writing 完成式 having written 2)现在分词一般式其所表示的动作与谓语动词所表示的动作同时发生，或在谓语动词所表示的动作之前或后发生。如： Working together with Dr. Bethune，we learnt a lot from him. 我们在和白求恩大夫一起工作期间，向他学到很多东西。 (working 与 leamt 同时发生) Knowing that they were going abroad next week ，they began to make preparations.他们知道他们下星期要出国，所以都开始作准备。(knowing 发生在 began 之前) He came up to me，sayingGlad to see you again.他来到我跟前说道，很兴奋又见到你。(saying 发生在 came 之后) 3)现在分词完成式其所表示的`动作发生在谓语动词所表示的动作之前，常常用作状语，表示时间或原因。如： Having done his homework ， the schoolboy began to write his diary.这个小学生做完作业后，开始写日记。(having done his homework 发生在 began 之前，表示时间。) Not haying done it right, I tried again.没有做对，我就又试。 (not having done 发生在 tried 之前，表示原因。) 现在分词的被动语态 一般式 being written 完成式 haring been written 如： This is one of the many dams being built the river.这是沿河修筑的许多水坝之一。 Being surrounded，the enemy troops were forced to surrender.敌军被包围了，被迫投降。 Having been asked to stay ， I couldnt very well leave.人家请我留下，我就不好离开了。 独立结构(absolute construction) 分词短语所表示的动作在逻辑上有主语，这种主语皆可在同一句中找到。如： The young woman standing over there is our new English teacher.站在那边的年轻妇女是我们新的英语老师。(分词短语 standing over there 的逻辑主语是 the young woman) Having finished his work ， he went out to play volleyball.他做完工作后，出去打排球，考研英语《考研英语：语法大全(独立结构)》。(having finished his work 的逻辑主语是 he)但有时分词短语有它自己的独立的主语，这种主语...
