英语导学案B2U5语法课.docx
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1、单元语法:介词+关系代词引导的定语从句学习目标:1. 了解介词+which/whom引导定语从句的基础知识;2. 了解介词+which/whom引导定语从句中介词的选择3. 了解Whose引导定语从句可转换为介词+which/whom引导定语 从句重点语法解说:(1)根据动词选择介词。有些定语从句中的介词本身是从句的一部分,这样的介 词可位于关系代词前,也可位于关系代词后。例如:I dont know the foreigner with whom my teacher shook hands.=1 dont know the fbreigner(whom)my teacher shook h
2、ands with.但要注意:who和that不能直接位于介词后作宾语;有的短语动词是不能拆开的, 因为这些介词存在于关系密切的固定短语中,常见的这类短语有look for, look after等。例如:This is the pencil that Ma Lili is looking for.(对)This is the pencil for which Ma Lili is looking.(错)(2)根据先行词选择介词。介词和先行词之间构成习惯搭配,此时,介词一般位于 关系代词之前,它和从句中的动词不存在逻辑或意义上的关系。例如:He stood by the window, thr
3、ough which he could see what was happening outside.(the window 是介词 through 的逻辑宾语)(3)有时,“介词+关系代词”可转换为关系副词,这样的关系副词一般为when, why, whereo 例如:This is the house in which(=where)Chairman Mao once lived.Everyone knows the reason for which(=why)the High Dam was built.I still remember the day on which(=when)we
4、 visited the temple.(4)选用定语从句的引导词时,不能只看先行词,重要的是看引导词在从句中充当 什么成分。例如:The evening that people spent singing and playing music was exciting .(充当 宾语)The Summer Palace, where we spent last Sunday, is a famous place.(作状语)The islands of Britain that we visited last year are made up of four parts.(作宾语)(5)避免关系
5、词的重复,被关系代词所代替的部分不可在从句中重复出现。例 如:The factory where he works there is a large one.(应去掉 there)This is the factory which we visited it last Sunday.(应去掉 it)预习自测题一、单项选择(1) The English play my students acted at the New Years party was agreat success.A. for whichB. at whichC. in whichD. on which(2) These boo
6、ks cost me 98 yuan,70 yuan was borrowed from my brother.A. of whichB. during whichC. from whichD. for which(3) Wind power is an ancient source of energy we may return in the nearfuture.A. on whichB. by whichC. to whichD. from which课堂检测题一、用适当的介词+关系代词完成句子(1) The novelyou are interested was written by
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