名词性从句要点总结.doc

名词性从句要点总结名词性从句相当于名词，可分别作主句的主语、表语、宾语和同位语。（一）引导名词性从句的连接词连接代词what什么；的事情；的东西who/whom 谁whose谁的which哪一个连接副词when什么（的）时候(时间状语）where哪里； 的地方(地点状语）why为什么（原因状语）how怎么样； 如何（方式状语）从属连词whether是否 if (不用于表从)是否that /as if (不用于宾从) 好像名词性从句： 陈述句语序.（二）主语从句1、主语从句在复合句作主语。e.g. Who will go is not important.2、用it作形式主语，主语从句放在句末。e.g. It doesnt matter so much whether you will come or not.3、that引导主语从句时，不能省略。e.g. That he suddenly fell ill last week made us surprised.（三）表语从句1、表语从句在复合句中作表语，位于系动词之后。e.g. The question was who could go there.2、that 引导表从不能省略（四）宾语从句宾语从句在复合句中作宾语。引导宾语从句的连词that一般可省略。e.g. I hope (that) everything is all right.宾语从句的位置1.动宾结构：从句在动词后After she heard _that_ most of the members voted against her, she managed a smile.2. 介宾结构：从句在介词后面I think Henry will be happy with _what_is inside the envelope.( 错误 )This story is about that NiuLang and ZhiNv met each other by accident on the earth and fell in love.注意：一般情况下，介词后面不接that从句；介词except, but, for, besides, in等除外3. 接在某些形容词之后The owner of the restaurant were frightened / afraid (that)_ Henry would not come back again and _that he would tell his friends about the bad treatment he got in the restaurant. 4. it 作形式宾语I heard it that she would get married next month.考点一：what/ that 的正确使用1. that 不充当成分，只起引导作用。what充当从句的主语，宾语或表语，本身具有意义。 2. that只有在紧跟动词之后时，才可省略。 e.g. She said, according to her plan, that we would reach Huilai at 9 oclock.3. 连接两个或以上的宾从，只有第一个that可省略，第二个及以后的that不省略。e.g. I forgot (that) Lisa studied hard and that she had gone abroad.练习1. The future isnt _ it used to be.2. We also realize _ hiking can be hard work and _ hikers need our help.3. Please pay attention to _ the teacher told you.4. The fact is _ Im an excellent student.考点二：whether / if 的正确使用If 不引导表语从句 whether 可接宾从和表从只用whether不用if的情况:1. 引导表语从句2. 介词后面只能用whether3. 从句后有“or not”或 “to do” e.g. I dont care whether you like the job or not.He didnt know whether to go or stay. 4. 用if 会引起误解，就要用whether。e.g. Please let me know whether you want to go.（此句如果把whether改成if，容易当成条件句理解）练习1. I worried about _ I hurt his feeling.2. It all depends on _ they will come back or not.3. The question is _ they have so much money.4. The question of _ they are male or female is not important.5. We didnt know _ she was ready or not. 考点三：think, believe, suppose, consider, expect, 等词后面接否定意义的宾语从句时， 常把否定移到主句。e.g. I dont think you are right. 我想你是不对的。 （五）同位语从句同位语从句在句中作某一名词的同位语，一般位于该名词（如：news, fact, idea, suggestio