英语人教版必修2课件：unit 1 Cultural relics section 2.ppt

限制性定语从句与非限制性定语从句 用关系词(which/whom/when/where)完成下列句子，并判断它们是限制性定语从句还是非限制性定语从句。 ①This gift was the Amber Room, ________ was given this name because several tons of amber were used to make it. ②The amber ________ was selected had a beautiful yellow brown colour like honey. ③It was also a treasure decorated with gold and jewels, ________ took the countrys best artists about ten years to make. ④Later, Catherine Ⅱ had the Amber Room moved to a palace outside St Petersburg ________ she spent her summers. ⑤This was a time ________ the two countries were at war. 结论：限制性定语从句：____________________________ 非限制性定语从句：________________________________ 答案：①which　②which　③which　④where　⑤when 结论：②④⑤；①③ 一、定语从句的种类 定语从句根据其与主句关系的密切程度可以分为限制性定语从句与非限制性定语从句两种。 二、定语从句的定义 1．限制性定语从句：限制性定语从句是先行词在意义上不可缺少的定语，用于修饰和限定先行词。如果去掉，主句的意思就不完整或失去意义。书写时不用逗号与主句分开。 This is the MP4 that/which I bought for my daughter yesterday. 这是我昨天为女儿买的MP4。 2．非限制性定语从句：非限制性定语从句和主句的关系不是十分密切，它只是对先行词或主句作附加或补充性的说明，不起限制作用，如果去掉，主句的意思仍然清楚完整。这类定语从句在书写时，大多用逗号与主句分开。非限制性定语从句中的关系代词不可省略。 He passed the exam, which surprised his parents. 他通过了考试，这使他的父母很吃惊。 三、限制性定语从句与非限制性定语从句的区别 1．作用不同 限制性定语从句用来修饰和说明先行词，具有限制作用；而非限制性定语从句一般跟先行词的关系并不十分密切，只是对先行词的附加、补充说明，不起限制作用，可以省略。省略后主句的意思仍然完整。 Her sister who teaches us English will go abroad next year. 她教我们英语的姐姐明年将出国。(限制性定语从句，意思是她可能还有别的姐姐。) Her sister, who teaches us English, will go abroad next year. 她的姐姐教我们英语，明年将出国。(非限制性定语从句，对先行词her sister 起到补充说明的作用，言外之意：她只有一个姐姐。) 2．形式不同 限制性定语从句和主句之间不用逗号隔开；非限制性定语从句必须用逗号和主句隔开。 Mr. Smith, who came to see me yesterday, is one of my best friends. 昨天来看我的史密斯先生是我的一位好朋友。(非限制性定语从句) Here is the man that you want to see. 这就是你想见的那个人。(限制性定语从句) 3．先行词不同 限制性定语从句的先行词只能是一个名词或代词，而非限制性定语从句的先行词可以是一个词，也可以是一句话。 This is the best novel that I have ever read. 这是我曾经看过的最好的小说。(先行词是novel) The novel, which I read last night, is very interesting. 这是我昨天晚上看过的小说，非常有意思。(先行词为novel) The novel is very interesting, which makes me very glad. 这部小说很有意思，这让我很高兴。(先行词为“The novel is very interesting”) 4．关系词的使用情况有所不同 T