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名词性从句复习注意：1.在名词性从句中，连接词的选择要根据从句的句意和上下文来确定。
2.当从句是陈述句时，通常使用连接词that（可省略，但在正式文体中建议保留）；当从句是疑问句时，通常使用whether/if（表示选择或疑问）或连接代词/副词（表示具体的疑问内容）。
3.在宾语从句中，当从句是特殊疑问句时，其语序要调整为陈述句语序。
4.同位语从句与定语从句的区别在于：同位语从句是对前面名词或代词的具体内容的阐述或解释，而定语从句则是对前面名词或代词的修饰和限定。
一、主语从句定义：在句子中充当主语成分的从句。
引导词：that, whether, if, who, whom, which, what, whose, how, when, where等。
使用原则：主语从句通常位于句首，用于描述句子的主要动作或状态的执行者或承受者。
它可以是陈述句、疑问句或祈使句（但祈使句作为主语从句的情况较少见）。
构成：主语从句通常由连接词that（可省略，但当从句中有疑问词或表示否定、强调等意义的词时，通常不省略）或whether/if（表示选择或疑问）引导，后面跟完整的句子结构。
例句：1.What he said made me think deeply.2.Whether he will come or not is still a mystery.3.How we can solve the problem is our main concern.4.That the earth moves around the sun is a well-known fact.5.Whoever breaks the law should be punished.练习题1._____ he said at the meeting surprised us all.A. WhatB. ThatC. HowD. Why2._____ you do, do it with all your heart.A. WhateverB. WheneverC. WhereverD. However3.It is _____ he often fails in exams that makes his parents worried.A. whatB. becauseC. thatD. why4._____ is known to all, the moon travels around the earth.A. AsB. WhichC. ThatD. What5._____ we should do next is still under discussion.A. WhatB. HowC. WhetherD. When答案：AAC（强调句结构）AA二、宾语从句定义：在句子中充当宾语成分的从句。
高考英语复习备考：名词性从句和定语从句讲练PART 1 考点剖析-名词性从句考点一：考查what引导名词性从句例1．______ annoyed me last night was the noise of the firecrackers from the neighborhood area till midnight.【答案】What【详解】考查名词性从句。
句意：昨晚使我恼火的（事）是从附近街区传来的一直持续到午夜的爆竹声。
句子分析可知，“___ annoyed me last night”为名词性从句作主语，设空处在从句中作主语，表示“……事”，用连接代词what 引导；设空处位于句首，首字母大写。
故填What。
考点二：考查that引导名词性从句例2．When we come across such factual differences, we shouldn’t rush to the conclusion ________ one of the news reports gives false information.【答案】that【详解】考查同位语从句。
句意：当我们遇到这样的事实差异时，我们不应该急于得出其中一篇新闻报道提供了虚假信息的结论。
引导同位语从句，说明conclusion的内容，从句不缺少成分，句意完整，故用that引导。
故填that。
考点三：考查-ever引导名词性从句例3．Every employee needs to find their unique value contribution that makes them stand out in ________ is their field of employment.【答案】whatever【详解】考查名词性从句。
句意：每个员工都需要找到自己独特的价值贡献，使他们在自己的就业领域脱颖而出。
分析句子可知，设空处位于介词in后，在句中引导宾语从句，从句中缺主语，结合句意可知，此处表示物，应用whatever引导。
名词性从句知识点梳理第一节相关概念一、定义：在复合句中相当于一个名词，做主语、宾语、表语、同位语的从句。
二、引导词：1. 连词: that, if, whether, as if2. 连接代词: who , what, which, whose, whom以及whoever, whatever, whichever等3. 连接副词: when, where, why, how，whenever, wherever, however等三、各类名词性从句的特征：主语从句表语从句宾语从句同位语从句练习：辨别下列名词性从句的类别。
1.How the book will sell depends on its author.2.John said that he was leaving for London on Wednesday.3.The fact is that he has not been seen recently.4.The fact that he has not been seen recently disturbs everyone in his office.5.He will talk to us about what he saw in U.S.6.It is impossible that I go and attend the meeting.第二节主语从句1．定义：在复合句中作句子主语的从句叫做主语从句。
2．连接词：引导主语从句的连接词有三类：连词that、whether;疑问代词who, what, which，whom, whose, whatever, whoever, whomever, whichever;疑问副词when, where, how, why，however, whenever, wherever等⑴连词that（无词意）, whether(是否), 在从句中不充当句子成分，只起连接作用; whether能引导主语从句，而if不能。
一．概念：名词性从句就相当于一个名词（因为名词可以充当主语，宾语和表语，所以名词性从句包含主语从句，宾语从句和表语从句和同位语从句）二．名词性从句主语从句That she is beautiful is a fact.主语从句系定表宾语从句We know that she is beautiful.主谓宾语从句表语从句 Our opinion is that she is beautiful.主系表语从句同位语从句The opinion that she is beautiful is a fact.主同位语从句系定表三．名词性从句的格式 1. that+陈述句=名词宾1.结构：主语 + 谓语2.语序：陈述句语序3.连接词 :①由that 引导②由if /whether 引导know if / whether Hua likes fish.③由特殊疑问词引导，表示特殊疑问意义 I want to know what time it is now.4.时态①当主句是一般现在时，从句根据情况使用任何时态。
（即：主现从不限）I don’t know (that) she is singing now.②当主句是一般过去时，从句应使用过去某时态(一般过去时,过去进行时，过去将来时，过去完成时)。
He said (that) he was at home. 他说他在家里。
③主句使用一般过去时，但从句表示的是客观真理、自然现象时、从句仍用一般现在时。
The teacher told us light travels faster than sound.一、一般结构：主语+连系动词+表语从句，二、可以接表语从句的词有：①be(being, been, am ,is, are, was, were)（be动词）② feel,look,sound, taste, smell (感官动词）③ stand, lie,remain, keep, stay(保持动词）④bee, get, grow, turn ,go ,prove(变化动词）⑤ seem, appear(表象动词)三、公式：a.由连接词that（无意义）, whether（是否）引导的表语从句这时主句的主语常常是抽象名词，如problem, result, chance, suggestion, question, reason 等，表语从句对主句主语进行说明，解释等。
名词性从句一．判断从句的类型1What he wants to tell us is not clear.2)It is known to us how he became a writer.3)He has told me that he will go to Shanghai tomorrow.4)He always thinks of how she can work well.5)I think it necessary that we take plenty of hot water every day.6)The fact is that we have lost the game.7)China is not what it used to be8)I have no idea when he will come back home9)The thought came to him that Mary had probably fallen ill.10)She's doubtful whether we shall be able to come.二．用what/that填空。
1) ______ we need to do is to provide better education for girls.2) ______ the students need more knowledge is the key problem.3) I know _____ he wants.4) I know ______he wants his money back.5) The problem is ______ we should do something to protect the animals.6) The problem is ______we should do to protect the animals..7) This is ____we call the dead sea.8）This is the place ____we call the dead sea.9) Do you understand the knowledge ______the teacher explained?10) Do you understand ______the teacher explained?三．用适当的连接词填空。
1.—Do you remember ____ he came? —Yes, I do, he came by car.2.—Could you do me a favor? —It depends on it is.3..____ matters most in learning English is enough practice.4.Tomorrow is Tom’s birthday. Ha ve you got any idea the party is to be held?5.Do you know ________ book it is?6.It worried her a bit _______ her hair was turning gray.7.He works hard. It is no wonder ___ he has made great progress.8.You are saying that everyone should be equal, and this is ____ I disagree.9.The city is no longer ____ it used to be.10. A modern city has been set up in _____ was a waste land ten years ago.11.Nowadays children are so well protected that they live in ____ is called “greenhouse”.12.Word came ____ he will go abroad for further study.13.There is much chance ______ Bill will recover from his injury in time for the race.14.It is generally considered unwise to give a child ________ he or she wants.15.Having checked the doors were closed , and _________ all the lights were off, the boyopened the door to his bedroom.16.______ we are sure about is the need to prevent children from being spoiled.17.It has been proved _____ eating vegetables in childhood helps to protect you against seriousillnesses in later life.18.It remains a question ____ we can get so much money in such a short time.19.I doubt _________ he would come. I don’t doubt _______ they will support us.20.I had no idea ______ we should do it. I had no idea _______ we should do.拓展9.The city is no longer ____ it used to be.The city is no longer the place____ it used to be.10.A modern city has been set up in an island _____ was a waste land ten years ago.A modern city has been set up in _____ was a waste land ten years ago.11.Nowadays children are so well protected that they live in ____ is called “greenhouse”. Nowadays children are so well protected that they live in a family____ is called “greenhouse”. 改错1. It’s uncertain that the experiment is worth doing.2. All what is hard is to do good all one’s life and never do anything bad.3. What the boy didn’t take medicine made his mother angry.4.See to that the children don’t catch cold.5. That we’ll go c amping tomorrow depends on the weather.6. What he really means is what he disagrees with us.7. I don’t care whether she has no money. I care if or not she is honest.8. When we’ll finish translating the book depend on the time.9. Where will the house be built will be discussed at tomorrow’s meeting.10. That is what he likes the place so much.11.There is much doubt that the lost boy was murdered.12. That is that Lu Xun once lived.13. We thought strange that Tom did not come yesterday.14. The fact which she had not said anything surprised all of us.15. The boy dived into the water and, after it seemed a long time, he came up again.16. Who leaves the room last ought to turn off the lights.17. The energy is that makes the cells able to do their work.18. Jack was soon told why he did was not necessary.19. The child is always lying, so none of us will believe no matter what he says.20. No matter who breaks the rule will be punished.。
