高一英语名词性从句讲解(2).docx

名词性从句 种类 宾语从句的时态。 that 什么情况下可以省略，什么情况下不可以省略。 whether 和 if 什么时候可以互换，什么时候不可以互换。 如何区分同位语从句与定语从句。 完成以下题目，并分别指出它们是什么从句 the baby could speak made his parents very happy. A. That B. What C. Why D. If I wonder you will go shopping or stay at home. that B. if C. whether D. what This is he was often late for school. what B. that C. why D. whether We all know the truth the earth around the sun. if; moved B. that; moves C. why; move D. whether; move 一．名词性从句的概念：一个句子在连接词的引导下，在句子中起名词作用的句子叫名词性从句。 二．名词性从句的功能：相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等。 His job is important. (主语) What he does is important. (主语) This is his job. (表语) This is what he does every day. (表语) I don’t like his job. (宾语) I don’t like what he does every day. (宾语) I don’t know about the fact that he is a teacher.(同位语) I don’t know about the man, Mr. White. (同位语) 得出结论：因此根据它在句中不同的语法功能，名词从句又可分为四类，即：主语从句、宾语从句、表 语从句和同位语从句。 三．引导名词性从句的连接词： 1、连接代词：who, whoever, whose, whom, whomever, what, which。有词义，在从句中担任成分，如主语、表语、宾语、或定语等。 I don’t believe he has achieved so far. breaks the law should be punished. 2、连接副词：when, where, why, how。有词义，在从句中担任成分，作状语。 we will hand in the project will be discussed later. Parents are thought to understand important education is to their children’s future. The reason he was absent was that he was ill. 3、连接词：that, whether, if, as if, a。sthtahtou无gh词义，在从句中不担任成分，有时可省略；if (whether), as if 虽有词义，但在从句中不担任成分。 I don’t care about you have money or not. The problem is Tom is able to arrive on time. the meeting will be held here is not decided yet. It looks it is going to rain. The truth is he didn’t come for the concert. the earth is round is true. 四．名词性从句的类型： 主语从句：在复合句中作主句的主语。连接词有 that, whether; who, what ,which; when ,where, how, why 等。 如: he is a famous singer is known to us. he will go to America is not yet fixed. she’s coming or not doesn’t matter too much. broke the glass yesterday is not clear. 注意： 为避免主语冗长,句子头重脚轻, 经常用 it 作形式主语, 主语从句放在后面作真正的主语。记住以下 it 作形式主语的句型： It’s likely / po