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名词性从句主语从句宾语从句名词性从句表语从句同位语从句以that引导以whether/if引导名词性从句结构以特殊疑问句引导以what或wh-ever等连接代词引导（名词性关系从句）一、主语从句1.以that引导的主语从句That从句作主语时，常用it作形式主语①it + be + 形容词（obvious, true, natural, surprising, good, wonderful,funny, possible, likely, certain, probable…）+ that从句②it + be + 名词词组（no wonder, an honor, a good thing, a pity, nosurprise…）+ that从句③it + be + 过去分词（said, reported, thought, expected, decided…）+ that从句即形容词/名词词组/过去分词形式主语真正主语在口语和非正式文体中，that可省略，尤其很短的句子，that不必要，但是that从句位于句首时，that绝不可省略2.whether引导的主语从句强调主语从句谓语句首只能用whether，不可用if代替主语从句在句末，whether和if均可3.特殊疑问词引导的主语从句常用it作形式主语连接代词who, which和连接副词when, where, how, why都可引导主语从句，不可省如句子是疑问句式，则必须用it引导4.名词性关系从句（以what或wh-ever等连接代词引导的名词性关系从句）what或wh-ever引导主语从句【例】What they need is a good textbook.Whichever he likes will be given to him二、宾语从句1.以that引导的宾语从句常见的可以接that从句作宾语的动词有：see, say, know, imagine, discover,believe, tell, show, think, consider, be sure, be afraid等，在可以接复合宾语的动词之后如think, make, consider等，可以用it作形式宾语That从句一般不能充当介宾，偶尔可做except，in的宾语【例】he is a good student except that he is a little bit careless2.whether/if 引导的宾语从句whether从句中不能有否定式介词后只能用whether，不能用if3.特殊疑问词引导的宾语从句能接特殊疑问词引导的宾语从句的动词很多，例如see, tell, ask, answer,know, decide, find out, imagine, suggest, doubt, wonder, show, discuss,understand, inform, advise等4.名词性关系从句（作动宾，介宾）三、表语从句1.that引导表语从句that 不可省略My ides is that we’ll all go except him.That是连词，在句中不充当成分，没有意义，不可省略2．Whether引导表语从句只能用whether，不能用if注：从属连词if一般不用来引导表语从句，但是as if却可以3.特殊疑问词引导表语从句注意从句用陈述语序The problem is where we should stay.4.名词性关系从句注意从句用陈述语序Tomorrow is when it would be most convenient.四、同位语从句1.that引导的同位语从句应在某些抽象名词后，如fact, hope, desire, thought, suggestion, idea, news,problem, possibility，对前面的名词起补充说明作用，在从句中不充当任何成分，但不可省略。
高中英语语法：名词性从句知识汇总在复合句中具有名词的性质的作主语、表语、同位语、宾语的从句叫名词性从句。
因此，我们把主语从句、表语从句、同位语从句和宾语从句这四种从句统称为名词性从句。
当名词性从句要采用陈述句语序。
由一个含疑问意义的连词引起时，必须将该连词放在名词性从句的开头，且该从句语序不能倒装。
一、引导名词性从句的关联词引导名词性从句的关联词大致相同，它们分别是：连词：that, whether, if；关系代词：who, what, which , whom, whose, whatever, whoever, whomever, whichever；关系副词：when, where, how, why, however, whenever, wherever。
引导从句时一般不用逗号和主句分开。
连词that在从句中不作成分，不含疑问意义；而wh-连词在从句中作成分，且含有疑问意义；或what/where从句相当于一个名词后加一个定语从句。
It worried her a bit that her hair was turning grey.她的头发在变白令她有点担忧。
（that在从句中只起引导词作用，不作成分）What caused the accident is still a complete mystery.事故发生的原因仍然是个不解之谜。
（What在从句中作主语）2、that与whether引导名词性从句的区别。
（1）动词doubt表示“怀疑、不知道”解时，肯定句接whether引导的宾语从句；否定句don’t doubt和疑问句Do you doubt要接that引导的从句。
I don’t doubt that he will come soon.我不怀疑他不久会来。
（此处不用whether）Can you doubt that he will win?你怀疑他会赢吗？（此处不用whether）比较：doubt表示“不信”解时，表示强烈的不相信时，在陈述句中可接that从句。
语法复习之名词性从句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。
因此，名词性从句厅分为主语从句、表语从句、宾语从句和同位从句。
（一）引导名词性从句的连接词1、连接代词：who, whose, whom, what, which。
有词义，在从句中担任成分，如主语、表语、宾语、或定语等。
2、连接副词：when, where, why, how。
有词义，在从句中担任成分，作状语。
3、连接词：that, whether, if, as if。
that 无词义，在从句中不担任成分，有时可省略；if (whether), as if虽有词义，但在从句中不担任成分。
注意：连接代词与连接副词在句中不再是疑问句，因而从句中谓语不用疑问式。
连接代词与连接副词在从句充当句子成分，连接词whether 和if（是否），as if（好象）在从句中不充当句子成分，只起连接作用。
根据句义，如果连接代词与连接副词，whether、if 和as if都用不上时，才用that作连接词（that本身无任何含义）。
（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 doesn’t 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、引导表语从句的连接词that有时可省去。
e.g. My idea is (that) we can get more comrades to help in the work.（四）宾语从句1、宾语从句在复合句中作宾语。
名词性从句在句子中起名词作用的句子叫名词性从句(Noun Clauses）。
名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
第一节知识点讲解顾名思义，主语从句在句子中作主语。
有时本身出现在主语的位置上，也有时出于句子结构的考虑退到句子的尾部，前面用形式主语it代替。
从句作主语时，谓语动词一般为单数形式。
如:What I saw was beyond any verbal description.That his hair was turning grey worried him a bit.Why the company denied the contract is still unknown.When and where the government will build a city square is under discussion.It is pretty annoying that a small part of the machine is missing.It remains to be seen whether the new novel will be well received.Tips: 主语从句的that绝对不能省去。
因为句子是不能做主语的，故用that引导。
若去掉则没有了主语，而宾语从句的that可省。
主语从句：That he is right is known to all of us.宾语从句：We all know (that) he is right.1. It 作形式主语和it引导强调句的比较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。
而it引导的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。
名词性从句名词性从句指在复合句中起名词作用的从句，它在句子中可作主语、宾语、表语或同位语。
名词性从句既是中学英语教学的重点，也是高考考查的热点。
一、名词性从句的分类名词性从句包括主语从句、宾语从句、表语从句和同位语从句。
其连接词有that, if, whether；连接代词who, what, which；连接副词when, where, how, why等。
考查热点一：对主语从句的考查主语从句在复合句中充当主语，它可以放在主句谓语动词之前。
但为了保持句子平衡，多数情况下可用it作形式主语，而把主语从句置于句尾。
考查热点二：对宾语从句的考查宾语从句在句子中作及物动词或介词的宾语。
如果主句的谓语动词是及物动make, find, see, think等，则把宾语从句置于宾语补足语之后，用it作形式宾语。
另外，某些作表语的形容词，如sure, happy, glad, certain 等之后也可以带宾语从句。
考查热点三：对表语从句的考查表语从句在句子中作表语，位于主句中的系动词之后。
一、什么是表语（predicative）在形式上，位于系动词后的就是表语。
从含义上讲，表语是回答主语“是什么”或“怎么样”的语法成分。
即是指“是”字句“是”字后面的成分。
表语就是起表述作用的句子成分。
它修饰的是主语。
表语是用来说明主语的身份、性质、品性、特征和状态的。
表语须和连系动词一起构成句子的复合谓语。
表语常由名词、形容词、副词、介词短语、不定式、动词的-ing、动词的-ed、从句来充当，它常位于连系动词（be, become, appear, seem等）之后。
Albert Einstein was a famous professor of physics.二、不定式、动名词与分词作表语的区别不定式和动名词作表语相当于一个名词作表语，含义是回答主语“是什么”；分词作表语相当于形容词作表语，含义是回答主语“怎么样”。
名词性从句Noun Clauses一. 基础定义和连接词1. 名词性从句：就是在句子中起名词作用的从句。
2. 名词性从句包括4种从句：主语从句、宾语从句、表语从句、同位语从句。
从高考的考查的实际情况来看，名词性从句考得最多的是宾语从句，其次是主语从句，再次是表语从句，而同位语从句则很少考查。
[判断]以下从句类型：1）The truth is that I have been there. ( )2）The fact that she was late surprised us. ( )3) That he will come is certain. ( )4) I know that he will come. ( )3. 名词性从句的连接词有：从属连词（不做成分）：that （无意义）,whether, if （是否）….连接代词（在从句中做主，宾，表，定）：what, who, whom, whose, which, whatever, whoever, whichever连接副词（在从句中做状语）：when, where, how , why二. 名词性从句位置和特点●主语从句：1.可直接放在句首。
2.主语较长时通常用It作形式主语，而将主语从句放在后面。
1). he knows Japanese is known to all.2). surprised me was to see him here .3) he is coming doesn’t matter much.4) It remains a secret they climbed up the mountain.●宾语从句：可做动词,介词和部分（表情感态度的）形容词词的宾语。
I want to know when we will start.Everything depends on whether we have enough time.I’m afraid (that) I have made a mistake.注意：如果宾语从句后面有宾补要使用it 作形式宾语而将从句放到宾补后面。
名词性从句知识点总结名词性从句是一种相当于名词的从句，可以作主语、表语、宾语和同位语。
主要分为主语从句、表语从句、宾语从句和同位从句。
连接名词性从句的词有连接代词和连接副词，如who、whose、whom、what、which、when、where、why和how。
连接词包括that、whether、if和as if。
在从句中，连接代词和连接副词担任成分，连接词that没有词义，在从句中不担任成分。
在主语从句中，从句作为复合句的主语。
有些主语从句可以用it作形式主语，将主语从句放在句末。
常用的主语从句句型包括it+be+形容词+that从句、it+be+名词词组+that从句和it+be+过去分词+that从句。
Mr。
Green has XXX.It appears that Alice will not be attending the party.The n of our meeting is irrelevant。
it does not matter where we hold it.It is important to note that when a subordinate clause serves as the subject of a sentence。
the verb should be in third person singular form。
except for the following sentence structures: "What we need is more time and money" and "What we need are many more books."XXX he left or not is still unknown.XXX: XXX "that" and "whether," as well as relative pronouns and adverbs such as "who," "whom," "whose," "what," "which," "whoever," "whatever," "whichever," "where," "when," "how," and "why." For example。
名词性从句在句子中起名词作用的句子叫名词性从句(Noun Clauses〕。
名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
第一节知识点讲解顾名思义，主语从句在句子中作主语。
有时本身出现在主语的位置上，也有时出于句子结构的考虑退到句子的尾部，前面用形式主语it代替。
从句作主语时，谓语动词一般为单数形式。
如:What I saw was beyond any verbal description.That his hair was turning grey worried him a bit.Why the company denied the contract is still unknown.When and where the government will build a city square is under discussion.It is pretty annoying that a small part of the machine is missing.It remains to be seen whether the new novel will be well received.Tips: 主语从句的that绝对不能省去。
因为句子是不能做主语的，故用that引导。
假设去掉则没有了主语，而宾语从句的that可省。
主语从句：That he is right is known to all of us.宾语从句：We all know (that) he is right.1. It 作形式主语和it引导强调句的比较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。
而it引导的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。
名词性从句一．名词性从句基本概念：在句子中起名词性作用的从句叫名词性从句。
Peter is interesting. What Peter said is interesting.主语主语从句I know Peter. I know that Peter is lovely.宾语宾语从句This is Peter. This is where Peter lives.表语表语从句A lovely teacher,Peter,is here.同位语The news that we won the game is exciting.同位语从句EG: I don’t know whether we will go out.二．名词性从句连接词的选择You may borrow which book you like.Whose watch was lost is known.三．主语从句1.定义：名词性从句做主语。
2.连接词That the earth moves around the sun is known to all.Whether we will go picnicing tomorrow depends on the weather.Who stands there is my father.2.用it作形式主语。
It be + 形容词/名词/过去分词+that从句It is a pity that he didn’t win the game.It is well known that the earth runs around the sun.EX：1.____we are invited to the concert this evening is good news to us.2.____we need is more time.3.__will come to have dinner is not known.4.It is common knowledge ____the whale is not a fish.5.It is known ____ he has agreed to my plan.四.宾语从句1.定义：名词性从句作宾语。
名词性从句主语从句宾语从句名词性从句表语从句同位语从句以that引导以whether/if引导名词性从句结构以特殊疑问句引导以what或wh-ever等连接代词引导（名词性关系从句）一、主语从句1.以that引导的主语从句That从句作主语时，常用it作形式主语①it + be + 形容词（obvious, true, natural, surprising, good, wonderful,funny, possible, likely, certain, probable…）+ that从句②it + be + 名词词组（no wonder, an honor, a good thing, a pity, nosurprise…）+ that从句③it + be + 过去分词（said, reported, thought, expected, decided…）+ that从句即形容词/名词词组/过去分词形式主语真正主语在口语和非正式文体中，that可省略，尤其很短的句子，that不必要，但是that从句位于句首时，that绝不可省略2.whether引导的主语从句强调主语从句谓语句首只能用whether，不可用if代替主语从句在句末，whether和if均可3.特殊疑问词引导的主语从句常用it作形式主语连接代词who, which和连接副词when, where, how, why都可引导主语从句，不可省如句子是疑问句式，则必须用it引导4.名词性关系从句（以what或wh-ever等连接代词引导的名词性关系从句）what或wh-ever引导主语从句【例】What they need is a good textbook.Whichever he likes will be given to him二、宾语从句1.以that引导的宾语从句常见的可以接that从句作宾语的动词有：see, say, know, imagine, discover,believe, tell, show, think, consider, be sure, be afraid等，在可以接复合宾语的动词之后如think, make, consider等，可以用it作形式宾语That从句一般不能充当介宾，偶尔可做except，in的宾语【例】he is a good student except that he is a little bit careless2.whether/if 引导的宾语从句whether从句中不能有否定式介词后只能用whether，不能用if3.特殊疑问词引导的宾语从句能接特殊疑问词引导的宾语从句的动词很多，例如see, tell, ask, answer,know, decide, find out, imagine, suggest, doubt, wonder, show, discuss,understand, inform, advise等4.名词性关系从句（作动宾，介宾）三、表语从句1.that引导表语从句that 不可省略My ides is that we’ll all go except him.That是连词，在句中不充当成分，没有意义，不可省略2．Whether引导表语从句只能用whether，不能用if注：从属连词if一般不用来引导表语从句，但是as if却可以3.特殊疑问词引导表语从句注意从句用陈述语序The problem is where we should stay.4.名词性关系从句注意从句用陈述语序Tomorrow is when it would be most convenient.四、同位语从句1.that引导的同位语从句应在某些抽象名词后，如fact, hope, desire, thought, suggestion, idea, news, problem, possibility，对前面的名词起补充说明作用，在从句中不充当任何成分，但不可省略。
专题九名词性从句题组1 宾语从句1.[2017北京,26]Jane moved aimlessly down the tree-lined street, not knowing she was heading.2.[2017江苏,26]We choose this hotel because the price for a night here is down to $20, half of it used to charge.3.[2015福建,29]—I wonder Mary has kept her figure after all these years.—By working out every day.4.[2015陕西,19]Reading her biography, I was lost in admiration for Doris Lessing had achieved in literature.5.[2015重庆,8]We must find out Karl is coming, so we can book a room for him.6.[2015四川,8]The exhibition tells us we should do something to stop air pollution.7.[2014福建,34]Pick yourself up. Courage is doing you’re afraid to do.8.[2013北京,33]Experts believe people can waste less food by shopping only when it is necessary.9.[2013新课标全国Ⅰ,26]Police have found appears to be the lost ancient statue.10.[2013山东,30]It’s good to know the dogs will be well cared for while we’re away.11.[2016甲卷(全国Ⅱ)改错]My classmates and I are talking about how to do during the holiday.12.[2015新课标全国Ⅱ改错]After looking at the toy for some time, he turned around and found where his parents were missing.题组2 主语从句13.[2017北京,23]Every year, makes the most beautiful kite will win a prize in the Kite Festival.14.[2016北京,24]Your support is important to our work. you can do helps.15.[2016江苏,21]It is often the case anything is possible for those who hang on to hope.16.[2015北京,35] we understand things has a lot to do with what we feel.17.[2015江苏,25] Li Bai, a great Chinese poet, was born is known to the public, but some won’t accept it.18.[2014大纲,24]Exactly the potato was introduced into Europe is uncertain, but it was probably around 1565.19.[2013四川,6] you said at the meeting describes a bright future for the company.20.[2013陕西,20]It remains to be seen the newly formed committee’s policy can be put into practice.21.[2013江西,30] one of you breaks the window will have to pay for it.22.[2013北京,31] makes the book so extraordinary is the creative imagination of the writer.题组3 表语从句23.[2016北京,29]The most pleasant thing of the rainy season is one can be entirely free from dust.24.[2015安徽,25]A ship in harbor is safe, but that’s not ships are built for.25.[2014浙江,8]"Every time you eat a sweet, drink green tea." This is my mother used to tell me.26.[2014北京,30]The best moment for the football star was he scored the winning goal.27.[2014江苏,26]—What a mess! You are always so lazy!—I’m not to blame, mum. I am you have made me.28.[2013安徽,21]From space, the earth looks blue. This is about seventy-one percent of its surface is covered by water.题组4 同位语从句29.[2016天津,11]The manager put forward a suggestion we should have an assistant. There is too much work to do.A组基础题A单句填空30.[2018江西赣州十四县市期中联考,67]All of a sudden, her handicap was gone and all I saw was this beautiful girl, whose smile just melted me and almost instantly gave me a completely new sense oflife is all about.31.[2018河南中原名校第二次质检,48]There is also new evidence green tea can help to destroy bacteria in our bodies.32.[2018上海光明中学开学考试,29]If the car travels 100 metres without the driver confirming their ID, the system will send a signal to an operations centre it has been stolen.33.[2018湖北宜昌示范高中协作体期中联考,66]One of the many benefits of the online classroom for students is they have the opportunity to interact (互动) on a regular basis with like-minded professionals from other countries and learn international business practices.34.[2018河南郑州外国语学校第四次调研,65]If they love each other, are committed to the relationship, and work on making it strong, that is counts.35.[2018安徽江淮十校第二次联考,48]War for the Planet of the Apes may not be the action and monster film that you had in mind, but it’s the kind of film that will make you want to sit in silence in the theater fora few minutes after it ends, taking in you’ve just witnessed.36. [2017上海上海中学检测,36]Optimism and pessimism are both powerful forces,and each of us must choose we want to shape our future and our expectations.37.[2017广东广州期中考试,4] is known to us all is that the 2020 Olympics will take place in Tokyo.38.[2017浙江杭州第二中学期中考试,32]People are now eager to find out it is that the little boy survived the terrible disaster.39.[2016安徽六校联考,35]We have learned from the story that is most valuable is not what we have in our lives but who we have in our lives.B单句改错40.[2018河南南阳一中第三次考试改错]And that’s which I want to do: make a difference to them and let them know that people do care!41.[2018沈阳铁路实验中学月考改错]The reason for this is why I would like to share my knowledge with my students and help them solve problems.42.[2018贵州黔东南州第一次联考改错]He said he was from Birmingham and I was the only person who smiled and said hello to him all day.43.[2018广东珠海珠海二中、斗门一中期中联考]That the clerk said is true.44.[2018豫西南部分示范性高中联考]I’d appreciate it that you could be so kind to give me some useful advice.45.[2018湖北荆州第一次质量检测]It surprised me most was a 70-year-old runner beside me, who had been in for 92 competitions after his retirement!46.[2018湖南怀化期中联考]But the fact is what the fight is not over.47. [2017湖北四地七校高三联考]Recently the students in our class have had a heated discussion on if people should keep pets at home in cities.48.[2017辽宁东北育才中学高三模拟]I began to think about how I could do to help them.49.[2017 湖北襄阳高三一模]It has never occurred to me when I’ll become a doctor one day.50.[2017 江苏苏州高三调研]It is not necessary to explain the truth air, water and sunlight are vital for living things.51.[2016江西五市八校高三联考]And he asked his friend that the bear had whispered in his ear.B组提升题A专项语篇型填空(名词性从句)Experiences are acquired through our journey in life; we choose 1 we believe and 2 we look at things and people around us based on all our experiences in life. Despite the fact 3 things and life are the way they are, we all have different opinions and beliefs about everything and everybody. Other people have opinions about us as well. But 4 really matters is the opinion we have about ourselves. You choose to accept and follow what other people believe, but you can also decide 5 you want to become yourself and live according to the reality of life.By living life as it is and being yourself, you create an image about 6 you value most and 7 you admire most. You should remember 8 important it is to be yourself. The image that you create about yourself determines 9 you are and how you feel; it determines how successful you become in life and remind you 10 you are standing in life. In short, you are as happy or sad as you see yourself.B语法填空[2018江西赣州四校协作体期中联考]Before accepting a job offer,you should consider 41 the job is really what you want to do. Why are you interested in this position?The reason for 42 (take) a job mainly depends on your desires and your ability. It may be okay to take a job that is not something you 43 (real) want to do right now, if it allows you to get into a 44 (good) position in the future.Furthermore, you should consider the company 45 offers you the position. Is it a good company 46 (work) for? Does it share your values? If not, does this matter 47 you?One of the most 48 (satisfy) parts of a job for many people is that the job 49 (challenge) them. It allows them to think and focus on the solutions to 50 (problem).C短文改错[2018河北衡水中学联考]Today Mr. Zhang, our English teacher, told us what to improve our English writing skills. The ability to write in English is becoming increasing important in English communication as well as in examinations. Thus, it was worth focusing our attention.In order to write the good essay, we should have an excellent command of over 2,000frequently-used English word. It’s necessary and useful for them to read or even recite beautiful English articles. Beside, as the saying goes, that "Practice makes perfect", so we should take every possible chance to write in English.According my personal experience, keep a diary in English every day is a good means to achieve the aim.答案专题九名词性从句题组1 宾语从句1.where 句意:Jane漫无目的地沿着绿树成荫的街道往前走,不知道要去哪里。
