安徽省明光英普辅导中心高考英语二轮复习精品课件：名词性从句_高考复习指南

安徽省明光英普辅导中心高考英语二轮复习精品课件：名词性从句

　　k 2．定语从句与状语从句请看两组句子：第一组：区分such...as...和such...that... (1)The new storybook is written in such easy English as beginners can understand. (2)The new storybook is written in such easy English that beginners can understand it. 这两句话只有一词之差，但语法结构大相径庭：第一句是as引导的定语从句，as相当于that/which(但不能用that/which)，在从句中作understand的宾语。第二句是结果状语从句，that在从句中不作成分。 Z

　　k 结论：当从句缺少句子成分时，用such...as...；当从句不缺少句子成分时，用such...that...。第二组：选用in which, where填空 (1)He left the key ______ he had been an hour before. (2)He left the place ______ he lived for many years. 分析：第一句只能填where, where引导的是地点状语从句，修饰主句中的谓语动词。此处where不可换成in which，因为in which只能引导定语从句，本句中根本就没有先行词(后面的从句不是修饰key的)。第二句填where或in which。根据句意可知，后面的句子是对名词place的修饰，因此此句是定语从句。 ◆点拨判断是用such...as...还是用such...that...的关键：判断从句是否缺少句子成分。 ◆牢记当涉及“地点”时，判断是定语从句还是状语从句的依据：看句中是否有先行词。二、that与what的区别 that引导名词性从句，在从句中不作任何成分，that本身无意义，只起连接作用。what引导名词性从句时，在从句中可以作主语、宾语、表语等，what表示“……的东西或事情”。请比较： What I need is more time.(what引导主语从句，在从句中作宾语) That I need more time to do the work is very clear.(that引导主语从句，在从句中不作任何成分) The village is no longer what it used to be.(what引导表语从句，在从句中作表语) I had no idea what we should do next.(what引导同位语从句，在从句中作宾语) He will tell us what he saw in London.(what引导宾语从句，在从句中作宾语) ◆精析名词性从句中区分that与what的关键是：分析句子结构，看从句是否缺少句子成分。如果不缺成分，就用that，如果缺少句子成分(主语、宾语、表语等)，且表示“……的东西或事情”就用what。 ◆牢记宾语从句可以跟在及物动词之后，也可以跟在介词之后。 ◆点拨解题时要设法排除插入语的干扰，将插入语忽略，从而简化句子结构，这样就可以降低解题的难度。典例　(安徽，33)His writing is so confusing that it's difficult to make out ________it is he is trying to express. A. that