Unit 1 Period Ⅲ Discovering Useful Structures-新教材高中英语必修第三册【优化探究】（人教版）(共18张PPT)

人教版英语·必修第三册 返回导航 下页 上页 Period Ⅲ　Discovering Useful Structures 人教版英语·必修第三册 返回导航 下页 上页 语法 专项突破 人教版英语·必修第三册 返回导航 下页 上页 动词的­ing形式作定语和表语 诵读下列句子并写出加黑部分的句子成分 1．(教材P4)During the Mid­Autumn Festival in China, families gather to admire the shining moon and enjoy delicious mooncakes. 2．(教材P4)Another example is Halloween, which slowly became an exciting festival for children, in spite of its religious origins. 动词的­ing形式作定语 动词的­ing形式作定语 人教版英语·必修第三册 返回导航 下页 上页 3．(教材P5)Online shopping websites and social media apps have made it much easier for the public to spend more on gifts for their loved ones. 4．The new books are popular with youngsters because they are interesting. 5．The film is encouraging so I think it is worth watching. 动词的­ing形式作定语 动词的­ing形式作表语 动词的­ing形式作表语 人教版英语·必修第三册 返回导航 下页 上页 1．动词的­ing形式作定语 动词的­ing形式作定语时，单个的词常放在被修饰词之前，短语常放在被修饰词之后。 (1)作定语表示被修饰词的某种功能或用途的­ing形式是动名词，相当于由for构成的介词短语。 a reading room＝a room for reading 阅览室 running shoes＝shoes for running 跑鞋 a working method ＝a method for working 工作方法 a washing machine＝a machine for washing 洗衣机 人教版英语·必修第三册 返回导航 下页 上页 (2)现在分词作定语时，它和被修饰词之间有逻辑上的主谓关系，表示所修饰词进行的动作，相当于一个定语从句。 The boy playing football on the playground is my younger brother. ＝The boy that/who is playing football on the playground is my younger brother. 在操场上踢足球的那个男孩是我的弟弟。 The man speaking to the teacher is our monitor's father. ＝The man who is speaking to the teacher is our monitor's father. 正与老师谈话的那个人是我们班长的父亲。 人教版英语·必修第三册 返回导航 下页 上页 2．动词的­ing形式作表语 作表语的动词­ing形式包括现在分词和动名词。 (1)现在分词作表语，往往具有形容词的性质，说明主语的性质、特征等。作表语的现在分词，许多是由能够表示人们某种感情或情绪的动词变化而来的。常见的有moving, interesting, encouraging, exciting, inspiring, boring, surprising, puzzling, amusing, astonishing ...这类分词有“令人……的”的含义，常修饰物。 The argument is very convincing. 这个论点很令人信服。 Your speech is very interesting and encouraging. 你的演讲很有趣而且很鼓舞人。 人教版英语·必修第三册 返回导航 下页 上页 (2)动名词作表语多表示抽象性的或习惯性的动作，一般说明主语的内容。 Her job is keeping the lecture hall as clean as possible. ＝Keeping the lecture hall as clean as possible is her j