Unit 1 Festivals and Celebrations Part 3 Discovering Useful Structures课件（16张ppt)-2021-2022学年下学期高一英语同步精品课堂(人教2019必修第三册)

Part 3 Discovering useful structures Unit 1 Festivals And Celebrations 主动语态 被动语态 一般式 doing being done 完成式 having done having been done 现在分词作定语、表语 The –ing form (1) 一、现在分词作定语： 1.单个动词的-ing形式作定语，位于被修饰 名词的前面，表示被修饰者的动作或状态。 tiring music music that is tiring a surprising result a result that is surprising The-ing form 2.–ing 形式短语作定语时, 放在所修饰的名 词之后, 意思上相当于一个定语从句。 They lived in a room facing the street. (= that faces the street) The man standing there is Peter’s father. (= who is standing there is Peter’s father. ) Anybody swimming in this river will be fined. (= who is swimming in this river will be fined ) 3.-ing形式短语也可以用作非限制定语, 相当 于一个非限制性定语从句, 这时, 它与句子 其他部分用逗号分开。 His brother, working as a teacher, lives in Beijing. =His brother, who is working as a teacher, lives in Beijing. The apple tree, swaying gently in the breeze, had a good crop of fruit. =The apple tree, which was swaying gently in the breeze, had a good crop of fruit. 二、现在分词作表语： -ing形式放在系动词之后,表达主动意义或主语的性质和