河南2012年成考高起点常考英语语法知识点（2）
 

        非谓语动词(现在分词与过去分词的区别)
　　1、The film showed last night was very moving. (-ed形容词和-ing形容词的区别)
　　2、Having finishing his lecture， the teacher asked if anyone wished to asked a question.
　　3、The problem being discussed is very important.
　　4、Given more time， we are sure to finish it.
　　5、Will you please make yourself known to everyone here

        现在分词表示动作正在发生，正在进行中，用于进行时态；也可以修饰名词，表示名词现在的特征
        如：The bird is flying. 那只小鸟正在飞翔（现在进行时）
   
        过去分词表示动作已经完成，用于完成时态，也可以修饰名词；
        如：I have finished my homework. 我已经完成了作业。（现在完成时）