高考英语——名词性从句

名词性从句 一、名词性从句的种类 名词性从句包括主语从句、宾语从句、表语从句、同位语从句。 二、引导名词性从句的连接词 1．连接代词： who, whose, whom, what, which有词义，在从句中担任成分，如主语、表语、宾语或定语等。 It has not been decided yet when we will leave. We are worrying about what we should do next. 2．连接副词：when, where, why, how有词义，在从句中担任成分，作状语。 It makes no difference where we shall have the meeting. Scientists study how human brains work to make computers. 3．连接词： whether, if, as if, if (whether), as if虽有词义，但在从句中不充当任何成分，只起连接作用；that无词义，在从句中也不充当任何成分，只起连接作用，有时可省略。 My suggestion is that we (should) have a discussion about this matter. The question whether we need more time to do the work hasn’t been discussed. 三、that, what引导的名词性从句的区别 引导名词性从句时，that没有词义，在从句中不作任何成分。当从句意义完整，不缺任何成分时，往往选用that；而what引导名词性从句时，意为“什么”或“……的”，在从句中用来作主语、表语或宾语。 What was most important to her, she told me, was her family.(主语从句；what作主语) Before the sales start, I make a list of what my kids will need for the coming season.(宾语从句；what作宾语) As a new graduate, he doesn’t know what it takes to s