高考英语语法知识大全 高考英语语法必考考点
来源：江南官网app下载 时间：2023-07-28
在英语学习中，最重要的就是语法。为什么很多同学都会“在学习英语的时感到句子很复杂，难以理解”，其实就是因为对所掌握的语法相关知识不是很牢固，所以要学好英语，一定要打好语法基础。今天小编为大家总结的就是高考英语必考考点之一的定语从句。
考点一 、as和which引导非限制性定语从句修饰主句
as和which都可以引导非限定性定语从句;关系代词都可指代前面的整个句子，都可以在定语从句中作主语、宾语或表语。其区别是：
(1)、as非限定性定语从句可以放在主句之前，亦可放在主句之后，甚至还可以分割主句;而which从句只位于主句后。
(2)、as引导此种从句时意思是：正如，像……一样;而此时which无具体意义，只翻译成：这。
1、They have won their last three matches,__________I find a bit surprising actually.(2009年辽宁卷)
A. that B. when C. where D. which 选D。 which引导的非限定性定语从句，用作find的宾语，指代前面整个句子。
2、My friend showed me round the town,________was kind of him.(2009年全国Π卷)
A. which B. that C. where D. it 选A。 which作主语，指代前面整个句子.
常见于as非限制性定语从句句型有：as is (well) known to, as weall can see, as you all know ,as is often the case(像往常一样)as often happens,(正如经常所发生的)as is saidreported/ has been said above(如上所述), as sb pointed out(正如sb所指出的)
考点二、whose引导的定语从句
关系代词whose在定语从句中用作名词的定语，指代人(=of whom)或物(=of which).whose+名词引导定语从句时，可换成“the+名词of whom/which”或“of whom/which+the+名词”。例：
1)Many children, ______parents are away working in big cities, aretaken good care of in the village.(2009年安徽卷)
A. their B. whose C. of them D. with whom 选B。whose用作parents的定语。
2)Look out!Do not get too close the house _______roof is underrepair.(2006福建卷)
A. whose B. which C. of which D. that 选A。关系词做从句的定语。
考点三、介词+关系代词引导的定语从句
“介词+关系代词”引导的定语从句常见于正式语体。能做介词宾语的关系代词只用whom(指人)和which(指物)有时也用whose,而不能用that。：
1、Gun control is a subject ______Americanshave argued for a long time.(2009年陕西卷)
A. of which B. with which C.about which D.into which 选C。Which指代前面的asubject.根据定语从句中谓语动词argue的固定搭配，argueabout sth with sb
2、She brought with her three friends, noneof ______I had ever met before.(2009年全国Ⅰ卷)
A. them B. who C. whom D. these 选C. whom指代three friend, 应有介词of . 所以应选C.
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