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1、高考英语总复习 语法强攻 名词性从句课件第1页,共75页,2022年,5月20日,0点11分,星期五名词性从句第2页,共75页,2022年,5月20日,0点11分,星期五(一) 名词性从句的结构和功能 名词性从句包括主语从句、宾语从句、表语从句、同位语从句。名词性从句主要有四种从句结构:以that引导的从句;以whether/ if引导的从句,以特殊疑问词引导的从句;以what或wh-ever等连接代词引导的名词性关系从句。此外,as if/ as though也可引导表语从句。具体用法见下表:知识梳理第3页,共75页,2022年,5月20日,0点11分,星期五第4页,共75页,2022年,5

2、月20日,0点11分,星期五第5页,共75页,2022年,5月20日,0点11分,星期五(二)名词性从句的连接词 引导名词性从句的连接词有:从属连词、连接代词和连接副词。1. 从属连词:that(本身无意义),whether(是否),if(是否)。只起连接作用,在从句中不作任何成分。2. 连接代词:who, whom, whose, which, what, whatever, whoever等。它们除起连接作用外,还可在从句中充当主语、宾语、定语、表语等成分。第6页,共75页,2022年,5月20日,0点11分,星期五3. 连接副词:when(the time when什么时候,何时),wh

3、ere(the place where什么地方,何地),how(the way that/in which怎样,以方式,如何),whythe reason why为什么)。它们除起连接作用,还在从句中作状语。第7页,共75页,2022年,5月20日,0点11分,星期五温馨提示what与that引导名词性从句的区别:1. what在名词性从句中可充当主语、宾语和表语,意义上相当于the thing(s) that,引导主语从句时,其谓语动词的单复数依句意而定。 e.g. What the lecturer said is very valuable. We wonder what he will

4、 do next.第8页,共75页,2022年,5月20日,0点11分,星期五2. that引导名词性从句不充当任何句子成分,只起连接作用,无任何意义。引导主语从句时,常用it作形式主语,谓语动词用单数,引导宾语从句时,常被省略。 e.g. That she will refuse the offer seems unlikely. I have found (that) all the tickets have been sold out. It is a pity that you missed such a fine talk.第9页,共75页,2022年,5月20日,0点11分,星期五

5、(三)主语从句1. 主语从句的基本用法1) that引导的主语从句既可放在句首,也可放在句尾,that起连接作用,无词义,在从句中不作成分,一般不能省略。 e.g. That we are invited to a concert this evening is good news to us. It is good news to us that we are invited to a concert this evening.第10页,共75页,2022年,5月20日,0点11分,星期五2) whether引导的主语从句可放在句首,也可放在句尾;if引导的主语从句只能放在句尾,前面需要it

6、作形式主语。whether/ if 起连接作用,“是否”,在从句中不作成分。 e.g. Whether he will go there or not is not clear. It is doubtful whether/ if the work can be completed.第11页,共75页,2022年,5月20日,0点11分,星期五3) wh类连接词引导的主语从句: wh类连接词包括wh类的连接代词(who, whom, whose, which, what, whoever, whomever, whichever, whatever等)和连接副词(when, where, h

7、ow, why, whenever, wherever, however等)。what, when和wh-ever类的词有时可不表疑问。wh类连接代词在句中既起连接作用,又可充当主语、宾语、表语、定语等成分。wh类连接副词在句中起连接作用,在从句中可充当时间、地点、原因、方式状语。第12页,共75页,2022年,5月20日,0点11分,星期五2. 主语从句的单复数问题1) 从句作主语时,谓语动词一般用单数。 e.g. That he will come and help us is certain. Who will go to the energy conference is not imp

8、ortant.2) what引导的从句作主语,表示单数概念,谓语动词一般用单数形式;表示复数概念,则谓语动词常用复数。 e.g. What he said is true. What he needs are books. 第13页,共75页,2022年,5月20日,0点11分,星期五(四) 宾语从句1. 宾语从句的基本用法:1) 动词后接宾语从句的用法: e.g. I know that he is friendly and hospitable. Go to stamp sales and buy whatever you can afford.第14页,共75页,2022年,5月20日,

9、0点11分,星期五温馨提示doubt, doubtful与sure后名词性从句连接词that, whether, if的选择。当doubt, doubtful用于肯定句时,后面的名词性从句的连接词常用whether或if;当doubt, doubtful用于否定句或疑问句时,后面名词性从句的连接词用that。 e.g. I doubt whether/ if he is at home. We dont doubt that they can complete the task ahead of time. It is doubtful whether it is true or not. 第

10、15页,共75页,2022年,5月20日,0点11分,星期五当be sure用于肯定句时,后面的宾语从句的连接词常用that;当be sure用于否定句时,后面的宾语从句的连接词常用whether或if。 e.g. We are sure that he is innocent. The old man didnt seem to be sure whether/ if he had met me.第16页,共75页,2022年,5月20日,0点11分,星期五2) 介词及形容词后接宾语从句的用法: e.g. We are talking about whether we admit stude

11、nts into our club. He was interested in whatever he saw there. He is pleased that he has passed a tough test.第17页,共75页,2022年,5月20日,0点11分,星期五温馨提示一般情况下介词后只能用wh类连接词引导的宾语从句。 e.g. I am surprised at what he said.介词后如果接that从句,要先加上it,再加that从句,即“介词itthat.”结构。 e.g. You may depend on it that they will support

12、you.第18页,共75页,2022年,5月20日,0点11分,星期五介词except, but, besides及in后可接that从句。 e.g. I know nothing about him except that he lives here.常接宾语从句的形容词有sure, certain, glad, pleased, happy, afraid, surprised, satisfied, sorry等。 e.g. Im afraid he wont attend our wedding.第19页,共75页,2022年,5月20日,0点11分,星期五3) that引导的宾语从句

13、:e.g. We are glad that so many old friends will attend our tea party. The headmaster said that the school reports had been sent off.第20页,共75页,2022年,5月20日,0点11分,星期五温馨提示 在suggest, demand, order, insist等动词之后的宾语从句中用虚拟语气,“(should)动词原形”。e.g. He suggested that we (should) set about doing the work at once.第

14、21页,共75页,2022年,5月20日,0点11分,星期五4) whether/ if 引导的宾语从句: e.g. Ill try to find out whether/ if the machine is in good condition.温馨提示whether/ if引导宾语从句表示“是否”的意思时,一般情况下可互换。if引导宾语从句时可以有否定式,而whether从句则没有。 e.g. I dont care if he doesnt come.第22页,共75页,2022年,5月20日,0点11分,星期五5) 特殊疑问词引导的宾语从句: 由who, what, how, whic

15、h, whose, where, why等词引导的宾语从句,可作动词、介词及形容词的宾语。 e.g. I cant imagine how he did it. We are worrying about what we should do next. I wasnt certain whose house I was in.第23页,共75页,2022年,5月20日,0点11分,星期五温馨提示 如果疑问词是介词的宾语,介词可位于从句句首或句末。e.g. I didnt know in which building they lived. I didnt know which building

16、 they lived in.第24页,共75页,2022年,5月20日,0点11分,星期五2. 宾语从句的时态1) 主句为现在或将来时态 主句谓语动词如果是现在时或将来时,从句谓语动词可用任何所需要的时态。 e.g. She says that she works from Monday to Friday. I know he didnt tell you that he would come then. He will tell me what happened to him during my absence.第25页,共75页,2022年,5月20日,0点11分,星期五2) 主句为过

17、去时态 主句的谓语动词是一般过去时,从句的谓语动词要用相应的过去时态。 e.g. He said there were no classes yesterday afternoon. He asked me if I was reading the book Red and Black when he came in.第26页,共75页,2022年,5月20日,0点11分,星期五3) 表示客观事实或真理 如果从句表示客观事实或真理,不管主句的谓语动词是何时态,从句都要用现在时态。 e.g. The teacher said that the world is made up of matter

18、.第27页,共75页,2022年,5月20日,0点11分,星期五(五) 表语从句1. 表语从句的基本用法1) 基本结构:主语系动词表语从句,常用的系动词有be,seem,remain,look等。 e.g. My idea is that you should make good use of your time. It seems that he has been to America.第28页,共75页,2022年,5月20日,0点11分,星期五2) as if/ as though引导的表语从句,系动词通常为look,seem,sound等,从句可以用陈述语气,也可以用虚拟语气。 e.g

19、. It looks as if it is/ were going to snow. 3) that和what引导的表语从句的区别: that引导表语从句时,起连接作用,没有实际意义,不作句子成分;what引导表语从句时,既充当连接代词,又作句子成分。 e.g. Our plan is that well go there once a week. Thats what he said. 第29页,共75页,2022年,5月20日,0点11分,星期五4) 由连接副词引导的表语从句: 连接副词where,why,when等引导表语从句,分别在从句中作地点、原因、时间状语。 e.g. That

20、is where the great writer used to live. That is why he didnt pass the exam. That was when I was thirty.第30页,共75页,2022年,5月20日,0点11分,星期五2表语从句需要注意的问题1) 主语为名词reason,表语从句用that而不 用why引导。 e.g. The reason why he was absent from the meeting was that he fell ill suddenly. The reason for such a serious acciden

21、t is that the driver was too careless and drunk.第31页,共75页,2022年,5月20日,0点11分,星期五2) 引导表语从句时,用whether,不能用if。 e.g. The question is whether he has signed the contract. (不能用if)3) 表语从句中的虚拟语气: 如果主句的主语是名词idea, advice, suggestion, order, request, requirement等时,则表语从句的谓语应用虚拟语气,“(should)动词原形”。 e.g. My suggestion

22、 is that we (should) set out at once. The doctors advice is that you (should) rest more and drink more.第32页,共75页,2022年,5月20日,0点11分,星期五4) 使用连接词时的注意事项: 连接代词和连接副词一般都表疑问,但what, when和where等连接词有两种含义,一种表示疑问,一种表示陈述。表陈述时,相当于the thing that, the time when, the place where, 常意为“的人/事”、“的时间”、“的地点”等。 e.g. This is

23、where he once lived. This is what I want to know. That was when he did the experiment.第33页,共75页,2022年,5月20日,0点11分,星期五句式意义例句That is why结果“那就是的原因”That is why we dont trust him.That is because原因“那是因为”That is because he often lies.The reason why.is that.“的原因是”The reason why we dont trust him is that he

24、often lies.3. 比较三个句式第34页,共75页,2022年,5月20日,0点11分,星期五(六) 同位语从句 在主从复合句中作同位语的从句,叫同位语从句。表示名词的内容,加以解释。同位语从句的基本用法:1. 能接同位语从句的名词:fact, idea, news, promise, information, message, belief, doubt, hope, opinion, possibility, thought, wish, truth, question, problem, reply, answer, report, suggestion, advice, ord

25、er, warning等等。第35页,共75页,2022年,5月20日,0点11分,星期五2. that引导的同位语从句 e.g. We were very excited at the news that our Chinese athletes won many gold medals. The problem that they cant get here early is hard to solve.第36页,共75页,2022年,5月20日,0点11分,星期五温馨提示 同位语从句通常由that引导,但根据接同位语的名词不同,也可由whether, when, who, how, wh

26、at, why等引导。e.g. I have no idea when he will be back. The question who was to blame has never been settled.第37页,共75页,2022年,5月20日,0点11分,星期五(七)引导名词性从句只用whether不用if的情况1. 引导主语从句置于句首时: e.g. Whether he can finish the work on time is not clear.2. 引导表语从句时: e.g. The problem is whether the meeting will be held

27、.3. 引导同位语从句时: e.g. I have no idea whether he is willing to help us.第38页,共75页,2022年,5月20日,0点11分,星期五4. 引导宾语从句前置时: e.g. Whether they will join in the Winter Camp I dont care.5. 作介词宾语时: e.g. We arent interested in whether he will agree with us or not.6. 作动词discuss的宾语时: e.g. We are now discussing whether

28、 we should group these three companies.第39页,共75页,2022年,5月20日,0点11分,星期五7. 其后接动词不定式时: e.g. Can you tell me whether to go or to stay?8. 与or not直接连用时,用whether,即whether or not,如果分开时,两者都可以,即whether/ if. or not。 e.g. I dont care whether or not he has a holiday. I dont care whether/ if he has a holiday or n

29、ot.第40页,共75页,2022年,5月20日,0点11分,星期五(八)同位语从句与定语从句的区别1. 同位语从句既“说明、修饰”先行词,又“等同”于先行词。定语从句“修饰、限制”先行词,由“关系词”替代先行词,在从句中充当成分。 e.g. We are delighted at the news that we are going to spend our summer vacation in Dalian. (同位语从句) Neither of us showed any interest in the news that John told us yesterday. (定语从句)第4

30、1页,共75页,2022年,5月20日,0点11分,星期五2. that在从句中的作用 同位语从句中that为连接词,只起连接作用,在从句中不作成分,一般也不能省略;定语从句中的that为关系代词,在从句中充当句子成分,可作主语、宾语和表语,作宾语时常可省略。 e.g. The news (that) he told me surprised me. (定语从句) The news that he gave in surprised me. (同位语从句)第42页,共75页,2022年,5月20日,0点11分,星期五3. 其他引导词的使用 引导同位语从句的词除连接词that外,还可用wheth

31、er,连接代词who,what及连接副词when, where, how, why等;引导定语从句的词除that外,还有关系代词who, whom, whose, which, as以及关系副词when, where, why。第43页,共75页,2022年,5月20日,0点11分,星期五(九) whever和“no matterwh” whever既可引导名词性从句,又可引导让步状语从句,而no matter wh只能引导让步状语从句。e.g. Whatever/ No matter what I said,he wouldnt listen to me. (让步状语从句) He would

32、 believe whatever/ anything that I said. (宾语从句)第44页,共75页,2022年,5月20日,0点11分,星期五 名词性从句包括主语从句、宾语从句、同位语从句和表语从句。考查要点主要是连接代词和副词的正确使用,主语、谓语的语序,双重连接词以及特殊句型的使用等。其考点主要包括: 考点归纳第45页,共75页,2022年,5月20日,0点11分,星期五1. 名词性从句的连接词。如:有词义的连接代词who, whose, whom, what, which; 连接副词when, where, why, how; 从属连词that, whether, if,

33、as if; 无词义的that在从句中不担任成分,有时可省略。 2. 名词性从句的语序和时态。3. it作形式主语、形式宾语的情况。 如:第46页,共75页,2022年,5月20日,0点11分,星期五1) Itbe形容词that从句2) Itbe过去分词that从句3) Itbe名词that从句4) It不及物动词(appear, happen等)that从句4. 名词性从句中的虚拟语气。如:1) It is (was)essential (important, natural)that; 2) It is (was) suggested (demanded, wished, desired)

34、 that等。 第47页,共75页,2022年,5月20日,0点11分,星期五5. what引导名词性从句时的语义功能和语法功能。如:whatthe thing that/ anything that;whatthe place that;whatthe time that;whatthe person that等。6. whoever, whatever, whichever引导名词性从句时的语义功能和语法功能。 重点考查连接词that, what的用法; 特殊疑问词引导的名词性从句; wh-ever引导的名词性从句。 第48页,共75页,2022年,5月20日,0点11分,星期五从A、B、

35、C、D四个选项中,选出可以填入空白处的最佳选项。The best moment for the football star was _ he scored the winning goal. A. where B. when C. how D. whyB第49页,共75页,2022年,5月20日,0点11分,星期五2. “Every time you eat a sweet, drink green tea.” This is _ my mother used to tell me. A. what B. how C. that D. whether3. Some people believe

36、 _ has happened before or is happening now will repeat itself in the future. A. whatever B. whenever C. wherever D. howeverAA第50页,共75页,2022年,5月20日,0点11分,星期五4. It is difficult for us to imagine _ life was like for slaves in the ancient world. A. where B. what C. which D. why 5. _ the delayed flight w

37、ill take off depends much on the weather. A. Why B. When C. That D. WhatBB第51页,共75页,2022年,5月20日,0点11分,星期五6. I think _ impresses me about his painting is the colours he uses. A. what B. that C. which D. who7. The only way to succeed at the highest level is to have total belief _ you are better than a

38、nyone else on the sports field. A. how B. that C. which D. whetherBA第52页,共75页,2022年,5月20日,0点11分,星期五8. I have no idea _ the cell phone isnt working, so could you fix it for me? A. what B. why C. if D. which9. The limits of a persons intelligence, generally speaking, are fixed at birth, but _ he reach

39、es these limits will depend on his environment. A. where B. whether C. that D. why BB第53页,共75页,2022年,5月20日,0点11分,星期五10. Scientists study _ human brains work to make computers.A. when B. how C. that D. whetherB第54页,共75页,2022年,5月20日,0点11分,星期五热点考向 1 主语从句1. 主要考点: 1) that引导主语从句时, 常用it作形式主语, 常见的句型: It+ be

40、+形容词+ that从句It+ be+名词 (短语)+ that从句It+ be+过去分词(said/told/reported/decided等)+ that从句It+ 特殊动词 (seems/ appears/ happens/ matters)+ that从句热点预测第55页,共75页,2022年,5月20日,0点11分,星期五2) what与that在引导主语从句时的区别: what引导主语从句时在从句中充当句子成分, 如主语、宾语、表语, 而that引导从句, 不充当成分。 e.g. What you said yesterday is right. (what引导主语从句, 作sa

41、id的宾语) That English is important is an undoubted fact. (that引导主语从句, 不作任何成分, 但不可省略)第56页,共75页,2022年,5月20日,0点11分,星期五3) 主语从句若含有“是否”意义, 其引导词只能用whether, 不能用if。 e.g. Whether he will be able to come tomorrow remains a question. 2. 突破技巧: 1) 掌握形式主语的句式及变化,根据句意选取合适连接词, 除that在句子中没有意义, 但不能省略外, 其他连接词均在句中有意义。2) wha

42、t, that, which, whether连接主语从句的区别。第57页,共75页,2022年,5月20日,0点11分,星期五热点考向 2 宾语从句1. 主要考点: 1) 动词find, feel, think, consider, take (认为), make, believe, guess, suppose, assume等后面有宾语补足语时, 且宾语是从句时, 需用it作形式宾语而将that引导的宾语从句后置。第58页,共75页,2022年,5月20日,0点11分,星期五2) 宾语从句的语序为陈述语序; 主句谓语动词用一般现在时, 从句谓语动词可以用各种时态; 主句谓语动词用一般过去

43、时, 从句需用过去的相应时态, 但从句若表示客观真理、规律, 用一般现在时。 e.g. He said that he had been to the space station. 第59页,共75页,2022年,5月20日,0点11分,星期五3) 由whether或if引导的宾语从句, 要保持陈述句语序。此外, whether与if在作“是否”讲时, 一般可以换用, 但在下列情况下一般只能用whether, 不用if。 引导的从句作介词宾语时。 e.g. Everything depends on whether we have enough money. 第60页,共75页,2022年,5

44、月20日,0点11分,星期五从句中有or或whether or not连用时。e.g. I wonder whether or not he will come. Tell me whether or not I should invite Nick. 后接动词不定式时。e.g. Can you tell me whether to go or to stay? 第61页,共75页,2022年,5月20日,0点11分,星期五2. 突破技巧: 1) 把握句意, 选取合适的连接词、时态、语序; 2) 注意whether与if的互换和区别。第62页,共75页,2022年,5月20日,0点11分,星期

45、五热点考向 3 表语从句1. 考查内容: 1) 表语从句常跟在这些系动词后, 如be, look, remain, seem等。 e.g. That is just what I want. 2) 除常用的连接代词、副词外, as if/ though, because, why等也可以引导宾语从句。 e.g. It looks as if its going to rain. 3) 引导表语从句的that不能省略; if不能用于 引导表语从句。 e.g. The reason is that he got up late. 第63页,共75页,2022年,5月20日,0点11分,星期五2.

46、突破技巧: 1) 理解句意, 把握语境, 扣准连接词在句中的含义; 2) 掌握系动词后的表语从句辨析that, because, if, whether。第64页,共75页,2022年,5月20日,0点11分,星期五热点考向 4 同位语从句1. 考查内容: 1) 同位语从句中的名词: 在复合句中, 同位语从句说明其前面名词的具体内容, 同位语从句通常由that引导(that不能省略)。可用于同位语从句的名词有advice, demand, doubt, fact, hope, idea, information, message, news, order, problem, promise,

47、question, request, suggestion, truth, wish, word等。第65页,共75页,2022年,5月20日,0点11分,星期五e.g. The news that the Shenzhou-spaceship set off successfully is exciting. I have no idea when he will come back home. The thought came to him that Mary had probably fallen ill. 第66页,共75页,2022年,5月20日,0点11分,星期五2) 同位语从句与

48、定语从句的区别: 在限制性定语从句中, 关系代词that充当主语或宾语, 有实际意义, 作宾语时, 可省略。同位语从句中的that是连词, 不充当句子成分, 没有任何意义, 但不可省略。 e.g. The news (that) we heard on the radio was not true. (定语从句) The news that our football team won the match was encouraging. (同位语从句)第67页,共75页,2022年,5月20日,0点11分,星期五2. 突破技巧: 1) 熟记同位语从句的常用名词; 2) 分析句子成分, 防止句式

49、变化; 3) 采取“意义法”区别同位语从句与定语从句。第68页,共75页,2022年,5月20日,0点11分,星期五巩固练习I. 用正确的连接词填空。1. Have you finished the book? No, Ive read up to _ the woman comes from. 2. Before going to the supermarket, I make a list of _ we will need for the coming week.where what 第69页,共75页,2022年,5月20日,0点11分,星期五3. My sister has _ it takes to be a doctor.4. Mr Curry refused to say _ had organized the meeting. However, everyone knew it was Jim. 5. Many experts hold the view _ the workers development is where the key to better production lies. 6. I prefer staying at home all day on Sundays. Thats _ I don

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