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2019-2020同步译林英语必修三新突破讲义:UNIT 2 SECTION Ⅲ GRAMMAR——名词性从句(Ⅱ)与IT作形式主语 WORD版含答案.doc

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1、Section Grammar名词性从句()与it作形式主语语 境 自 主 领 悟先观察原句That is why English has so many difficult rules that confuse people.It is interesting to learn how the words for animals and meat developed.It is certain that this process will continue.I always wondered when I would get the English novel my parents had

2、promised to give me.What I always dreamt of has come true.It is fun wandering in the countryside.后自主感悟1.第、句中的黑体部分都是名词性从句,它们分别在各自的句子中作表语、宾语和主语。2.第、句中的黑体部分都是it作形式主语的用法,it分别替代的是动词不定式、主语从句和动名词短语。一、连接代词、连接副词引导的名词性从句1由what,which,who/whom,whose等连接代词和when,where,why,how等连接副词引导的名词性从句在句子中可以充当主语、宾语、表语或同位语。(1)主语

3、从句What surprised us was her ignorance.使我们吃惊的是她的无知。Where we will go hasnt been decided.我们要去哪儿还没有定下来。When she will come is still unknown.她何时来还不知道。(2)宾语从句The school was built on what used to be a wasteland.这所学校是在以前的荒地上建造的。Now we dont know how the pyramids were built.现在我们不知道金字塔是如何建造的。Please tell me whos

4、e book it is.请告诉我这是谁的书。(3)表语从句The problem is how we could make him understand it.问题是我们如何能使他明白这些。The question is where we should go.问题是我们应该去哪儿。He was ill.That was why he didnt attend the meeting.他病了。那就是他没出席会议的原因。He didnt attend the meeting.That was because he was ill.他没出席会议。那是因为他生病了。(4)同位语从句I have no

5、 idea where he has gone.我不知道他去哪里了。We dont understand the problem why this is the best choice.我们不明白这个问题为什么这是最好的选择。2连接代词和连接副词的选择连接代词和连接副词的选择要把握住两点:(1)成分:连接代词在从句中作主语、宾语、表语或定语; 连接副词在从句中作状语。(2)意义:无论是连接代词还是连接副词,通常都有各自的意义。Thats where the accident took place.那就是事故发生的地方。(作状语,意为“的地方”)She didnt know who/whom w

6、e were talking about.她不知道我们在谈论谁。(作介词宾语,意为“谁”)即时演练1选词填空:when,why,how,which,what,who,whomDo you know when the train arrives.Can you tell me why you chose the topic to write an article.How I can make greater progress later is a problem.Which team will win is not clear.What I want to know is who took aw

7、ay my book.The problem is whom we should have do it.3what与that的用法区别(1)that只起连接作用,在从句中不充当任何成分,也无任何意义。(2)what引导从句,除起连接作用外,还在从句中作主语、宾语、表语等成分,这时what具有两个含义:保留疑问的意义,即“什么;什么样的”;相当于“the thing(s) that/which”,即“先行词定语从句”的含义。另外,what的此种用法还可以表示时间(the time that)、地点(the place that)、人物(the person that)、数目(the amount

8、/number that)等不同概念。You can have what you like.你喜欢什么就拿什么吧。The trouble is that she has lost his address.麻烦在于她弄丢了他的地址。After what seemed a long wait,the results were announced.经过了似乎漫长的等待之后,结果被宣布了。即时演练2单句改错That the professor said is of great importance.ThatWhatThe key is that we can get from it.thatwhatH

9、e saves that he earns.thatwhatI know the fact what he came here two years ago.whatthat4“疑问词ever”与“no matter疑问词”的用法区别whoever,whatever,whichever等既可引导名词性从句又可引导让步状语从句,而“no matter疑问词”只能引导让步状语从句。即时演练3句型转换Anyone who comes here is welcome.Whoever comes here is welcome.You can do anything you like.You can do

10、 whatever you like.二、it用作形式主语当不定式、动名词、从句等用作主语时,为避免头重脚轻,通常在句首使用形式主语it,而把真正的主语放在句子末尾。1代替主语从句it代替主语从句的常用句式如下:(1)It be名词(a pity,a shame,an honour,a good idea,a miracle,a fact,common knowledge,a surprise .)从句。It is a pity that I cant go with you because I have to look after my little brother.很遗憾我不能和你一起去,

11、因为我必须照看我的弟弟。It is common knowledge that the earth turns around the sun.地球围着太阳转是常识。(2)It be形容词(clear,possible,likely,natural,certain,fortunate,necessary,strange,uncertain,obvious,important .)从句。It is obvious that they are for the plan.很明显他们赞同此项计划。(3)It不及物动词(happen,seem,appear,chance,occur,matter .)从句

12、。It happened/chanced that I was in the countryside at the time.那时我恰巧在乡下。It seems that it is going to rain soon.看起来天马上要下雨了。(4)Itbe过去分词 (found,believed,reported,thought,noted,proved,known,decided,suggested,required .)从句。It is reported that the fire caused a great loss and hundreds of people died.据报道这一

13、次火灾损失巨大并且数百人死亡。名师点津(1)“Itbesaid/believed/reported/.that .”句型一般可转换成“sb./sth.be said/believed/reported/.不定式”句型。It is said that he has got a doctors degree.He is said to have got a doctors degree.据说他获得了博士学位。(2)在句型“Itis/wasadj.主语从句”中,如果形容词是important,strange,natural,necessary等,从句谓语部分要用“should动词原形”形式,shou

14、ld可以省略。It was necessary that we (should)make everything ready ahead of time.我们有必要提前把一切都准备好。(3)在“It is/was过去分词that.”结构中,如果动词是require,demand,request等,从句谓语部分要用“should动词原形”形式,should可以省略。It is required that nobody (should) smoke here.要求所有人都不能在这里吸烟。2代替不定式短语It is hard to translate this sentence into Englis

15、h.把这个句子译成英语很难。3代替v.ing短语Its no use arguing with him.同他争辩没用。4it作形式主语和it用于强调句型的比较it作形式主语代替主语从句,主要是为了平衡句子结构,主语从句的连接词没有变化,可以是that,whether或连接代词、连接副词。而it强调句则是对句子某一部分进行强调,无论强调的是什么成分,都可用连词that,若被强调部分指人时也可用who。试比较:It is a pity that you didnt go to see the film.你没有去看电影真遗憾。(主语从句)It doesnt interest me whether y

16、ou succeed or not.你成功与否我都不感兴趣。(主语从句)It was in the morning that the murder took place.正是上午的时候谋杀案发生了。(强调句型)It was John that/who broke the window.是约翰把窗子打破的。(强调句型)即时演练4用it作形式主语改写句子To remember this rule is important.Its important to remember this rule.Lying in the sun in winter is pleasant.It is pleasant

17、 lying in the sun in winter.That her hair was turning grey worried her a bit.It worried her a bit that her hair was turning grey.单句语法填空1What is important is how to persuade her to change her mind.2You may choose whatever topic you like to write your composition.3It is clear that the weather will soo

18、n turn out fine.4Occasions are quite rare when I have time to spend a day with my kids.5Whether ways will be found to stop pollution is just what worries the public.6I prefer shutting myself in and listening to music all day on Sundays.Thats where I dont agree.You should have a more active life.7Who

19、ever leaves the room ought to turn off the light.8He got killed in the accident.Thats because he was careless.9It is very important that each of us pay attention to our English learning.10It remains to be seen that the newly formed committees policy can be put into practice.单句改错1. What the boy didnt

20、 work hard made his parents very worried.WhatThat2He was late for work.That was why he got up late this morning.whybecause3I dont want to offer this job to whom isnt responsible for his work.whomwho/whoever4There was no wonder that she looked so happy that day.ThereIt5It makes no difference if they

21、will come to the party or not.ifwhether6That is which other teachers say.whichwhat7This is how I need to improve in the future.howwhat/where8But before long they began to see which was happening.whichwhat9Here is my idea about how a friend is like.howwhat10I find what I have one shortcoming in my character.whatthat

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