人教版高中英语必修一Unit4Grammar精品课件
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GRAMMAR定语从句(一)定语从句是在复合句中起定语作用,修饰某一名词或代词的从句。
被定语从句修饰的词叫先行词。
引导定语从句的关系词有关系代词(that, which, who, whom, whose等)和关系副词(where, when, why等)。
关系词在先行词和定语从句之间起着三个作用:①连接主句和从句;②指代先行词;③在从句中作句子成分。
本单元我们先来学习关系代词引导的定语从句。
【语境展示】观察下面句子,并试着归纳关系代词引导的定语从句的用法。
1. The people who / that called yesterday want to buy the house.2. The man (whom / who / that ) I have to phone lives in Canada.3. She was not in the train which / that arrived just now.4. This is the book (which / that) you wanted.5. The girl whose work got the prize is the youngest in her class.6. It’s the house whose door is painted red.【自我归纳】①关系代词who指人,在定语从句中作主语或宾语(句1、句2)。
②关系代词whom指人,在定语从句中作宾语, 在口语和非正式文体中可用who或that替换(句2)。
③关系代词which指物,在定语从句中作主语或宾语(句3、句4)。
④关系代词that既可以指人也可以指________,在定语从句中作主语或宾语(句1—句4)。
⑤关系代词whose既可指人也可指物,在定语从句中作________(句5、句6)。
注意:关系代词在从句中作宾语时,在口语中可省略(句2、句4)。