名词性从句解题及练习
名词性从句解题 I定义:在句子中起名词作用的句子就叫名词性从句。 II分类:主语从句,宾语从句,表语从句和同位语从句 III.连接词 1)连接代词(在从句中作“主语,宾语,表语,定语”) what(ever) / which(ever)作主语、表语、定语 The shopkeeper did not want to sell for what he thought was oot enough』主语) Whatever I do is for you.(宾语) The country is no longer what it used to be.(表语) You can never imagine whatever great difficulty I had in solving the problem.(定 12) who(ever)作主语、宾语、表语 Give the job to whoever you think is equal to it.(主语) Please give the gift to whoever you would like to give.(宾语) whom(ever)作宾语、表语 whose作定语 I don t know whose book it is. 2)连接副词(在从句中作“状语”) when(ever) / where(ver) / how(ever) Please remind me when he said he was going. I may be in time to see him off. I don t know where/how he will go. 3)连接词(在从句中不作成分) that / whether / if That Tom was late made his mother very angry. It is not clear whether the newly-elected president will end the conflict. IV四类从句: 一、主语从句:作句子主语的从句叫主语•从句 That knowledge is power is known to all. 注意: 1) that引导的主语从句,只起连接句子的作用,本身没有词义,不作成分但不能省略。 2) whether引导主语从句时,表示主语从句意义的不确定性,但有词义,作“是否”讲。 —般来说,已确定的事情由that引导,没有确定的事情用whether引导。 %1. 宾语从句 1) 宾语从句常出现在及物动词或介词之后,有时出现在be + adj.之后 I want to know whether he will attend the meeting. Jiao Yulu always thought # how he could do more for the society and the people. I m afraid that I have made a mistake.我忍历犯了一个错误。 2) that引导宾语从句通常可省。但若有几个宾语从句并列时,只有第一个that可省。 %1. 表语从句:常放在系动词be, look, seem, appear, remain等之后,在句子中作表语的从句叫 表语从句 常见句型: %1 It looks as if. %1 It seems / appears as i |that. (3) The reason .is that. 原因是… ④This / that is because・・・ 这是/那是因为 This / That is why .这就是/那就是为什么… They all work so hard. This is because they know what they are working for. 他们工作很努力,这是因为他们知道自己为什么而工作。 They were short of experience. That was why they had to learn from practiced workers 他们缺少经验,这就是为什么它们必须向有经验的工人学习(的原因)。 四.同位语从句 跟在抽象名词 idea, news, fact, promise, hope , thought, belief, order, suggestion ,plan , doubt, explanation ,answer, chance等之后,用来表示名词所表示的具体内容c连接词that(常考);whether 只起引导作用,在从句中不作任何成分,不能省略。另外也可用where, when ,how等词引导。 that引导的同位语从句与that引导的定语从句 1)同位语修饰抽象名词,定语从句无限制 2)名词放回句中作成分为定语从句,不能放回句中作成分为同位语从句 There is much chance that Bill will recover from his injury in time for the race. Ill常见考点: Lit的特殊用法: 1) it作形式主语,常见句型有: It + be +adj< + that It +be + 名词词组(no wonder, an honour, a pity, no surprise) + that It +be+ 过去分词(said, reported, expected, decided, announced) +that eg. It is certain that she will do well in her exam It s no wonder that they look alike. It is said that Mr.Green has gone to Beijing. 2) it 作形式宾语,常用在 think /consider/make/find/feel/take+ it+ adj.\ n. +that\to do sth 句式中 We have make it clear that anyone who breaks the law is to be punished. You can t take it for granted that everyone should adore you. 2.和suggest这类词有关的从句谓语动词需用should do 动词一坚持 insist 二命令 order, command 四建议 suggest, advise, propose, recommend 五要求 ask,demand, request, require, desire 后面的宾语从句要用虚拟语气that sb (should) do sth 当这类动词转化成名词引导主语从