新东方白易礼：英语四级考试语法笔记(七)

　　分词做状语时，前面可用连词或介词。

　　例如：

　　After eating my dinner quickly，I went to see Jim off。我赶快吃过晚饭就去给吉姆送行。

　　Though built before the Second World War，the engine is still in good condition。尽管是在二战以前建的，这引擎仍然处于良好状态。

　　Unless paying by credit card，please pay in cash。如果不用信用卡付款，请用现金付。

　　Tom will never do this unless compelled。汤姆永远也不会干这种事，除非被逼无奈。

　　She’s been quite different since coming back from America。从美国回来后，她大变了。

　　(二)用法

　　1.作定语。作定语的分词通常放在被修饰的名词之前。如果被修饰的词是something，anything，everything，nothing等，则分词放在这些词之后。分词短语通常放在被修饰的名词之后。

　　例如：

　　This is an interesting book。(=This is a book。It is interesting。)这是一本有趣的书。

　　There is something interesting in the news。(=There is something in the news。 It is interesting。)消息中有些有趣的事。

　　The man sitting by the window is our math teacher。(=The man who is sitting by the window is our math teacher。)靠窗户坐着的那个人是我们的数学老师

　　The machine run by the old worker is made in Shanghai。(=The machine that is run by the old worker is made in Shanghai。)那位老工人开的机器是上海造的。

　　Most of students singing were girls。(=Most of the students who were singing…)唱歌的学生多数是女生。

　　Many of the villagers questioned refused to answer。(=Many of the villagers who were questioned…)被问的许多村里人都拒绝。

　　注意：(1)分词作定语与动名词作定语的区别：

　　分词和它所修饰的名词有逻辑上的主、谓关系。动名词则没有这种关系，而表示它所修饰的词的用途或有关动作。

　　现在分词和它所修饰的名词都要重读，动名词所修饰的名词则不必重读。

　　(2)现在分词作定语时，它表示动作正在进行或与谓语动词所表示的动作同时发生(或差不多同时发生)。

　　例如：

　　Who is the boy dancing over there?在那儿跳舞的少年是谁呀?

　　The girls swimming in the sea were in danger。 在海里游泳的姑娘们有危险。

　　如果两个动作在时间上有先后，一般不能用现在分词作定语，而往往用主从复合句结构。

　　例如：

　　The man who has gone to Shanghai will be back again。到上海去的那个人会回来的。

　　The teacher wants to talk to the students who smashed the windows。老师要找打破了窗子的那个学生谈话。

　　(3)be的现在分词being不能用作定语(可用作状语或被动语态中的助动词)。表示这种概念时，也用主从复合句结构。

　　例如：

　　He has a brother who is a worker。他有一个当工人的兄弟。