Noun Clause在句子中起名词作用的句子．名词性从句的功能 相当于 名词词组．名词性从句：His job is important.What he does is important. {主语 {This is his job.This is what he does every day.表语名词性从句在句中可以担任： 主语、宾语（介宾）、表语、同位语，因此，根据它在句中不同的语法功能，分为： 从句一律保持陈述语序。主语从句同位语从句表语从句宾语从句that / what1.______ he wants is a book.2. ______ he wants to go there is obvious.3.The result is ______ we won the game.4.This is _____ we want to know.5. I have no idea _____ he did that afternoon.WhatThatthatwhatwhat1. 主语从句：从句在句中充当主语成分 1. 通常放在主句谓语动词之前 2. 也可以由形式主语 it 来代替， 而将主语从句放在句末。用 it 作形式主语的 that- 从句有以下四种不同的搭配关系：a. It + be + 形容词 + that- 从句 It is necessary that… 有必要…… It is important that… 重要的是…… It is obvious that… 很明显……b. It + be + -ed 分词 + that- 从句 It is believed that… 人们相信…… It is known to all that… 从所周知…… It has been decided that… 已决定……c. It + be + 名词 + that- 从句 It is common knowledge that… ……是常识 It is a surprise that… 令人惊奇的是…… It is a fact that… 事实是……d. It + 不及物动词 + that- 分句 It appears that… 似乎…… It happens that… 碰巧…… It occurred to me that… 我突然想起 注 意：1. What you left _____only several old books. (be)2. What you said ___of great importance.(be)3. What he says and does _______concern me.(do)4. What he says and does _______agree.(do)“if” 不能引导主语从句，应有“ whether” 引导。主语从句的 “ that” 一般不能省。“what” 引导主语从句时，谓语动词： 1 ）常与其后的名词作表语一致 2 ）根据句子的语境而定。areisdoesn’tdon’t 1.___ he made an important speech at the meeting was true. A. That B. Why C. What D. How 2. ___we’ll go...
