2017届高考英语一轮复习语法专练课件：5 名词性从句（牛津译林版）_高考复习指南

2017届高考英语一轮复习语法专练课件：5 名词性从句（牛津译林版）

　　1.that引导的主语从句置于句首时,that不可以省略; 2.当一个句子有两个或多个并列的宾语从句时,引导第二个和以后几个从句的that不可省略; 3.由it作形式宾语时,that引导的宾语从句中,that也不可省略。二、wh-ever与no matter wh-的用法区别

　　wh-ever既可引导名词性关系从句,又可引导让步状语从句;而no matter wh-只能引导让步状语从句。如: Whatever I said,he wouldn't listen to me. =No matter what I said,he wouldn't listen to me. 无论我说什么,他都不会听我的。(让步状语从句) He would believe whatever I said. 我说什么他都信。(宾语从句) 另外,在whoever,whatever,whenever,wherever中,-ever起强调作用,含有“究竟,到底”的意思。如: Wherever have you been? 你究竟去了哪里? 三、as if/as though,because,why也可引导表语从句。如: It looked as if it was going to rain. 天好像要下雨。 That's because he didn't work hard enough. 那是因为他工作不够努力。 That was why I asked for three days' leave. 那就是为什么我请了三天假。注意:because引导的表语从句,主语不能是reason或cause,而且since,as一般不引导表语从句。四、连词that引导的同位语从句与关系代词that引导的定语从句的区别连词that引导同位语从句时,应放在某些抽象名词之后,如news,word(消息),idea,fact,hope,desire,thought等,对前面的名词起补充说明的作用,连词that只起引导同位语从句的作用,在从句中不担当任何成分,因此that引导的同位语从句是完整的,不缺任何成分。关系代词that引导定语从句时,关系代词that一方面起引导定语从句的作用,另一方面在定语从句中担当主语、宾语或表语。因此,that引导的定语从句是不完整的。如: The news that our football team won the match was encouraging.(同位语从句,不缺任何成分) 我们的足球队赢了比赛的消息令人鼓舞。 The news(that)we heard on the radio was not true.(定语从句,缺少宾语) 我们在收音机里听到的那个消息不是真的。