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专题10名词性从句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。
考查的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。
具体来说主要包括：1、考查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, as if；无词义that在从句中不担任成分，有时可省略。
2、考查名词性从句的语序和时态。
3、考查it作形式主语、形式宾语的情况。
如：（1）It+be+形容词(necessary, important, obvious等)+that从句;（2）It+be+过去分词+that从句;（3）It+be+名词(a surprise, a fact, a shame,a honor等)+that从句;（4）It+不及物动词(appear, happen等)+that分句。
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….）that…等。
5、what引导名词性从句时的语义功能和语法功能。
如：what=the thing that/anything that…；what=the place that…；what=the time that…；what=the 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。
2017年将重点考查连接词that、what的用法；特殊疑问词引导的名词性从句；whever 引导的名词性从句。
【及时演练】1．(2016·湖南益阳一中等三校联考)Tony eventually realized his childhooddream________he could play on one of the top teams.2．(2016·汕头金山中学期中)Let’s see ________starting off with a good fifteen－minute training of the smile muscles helped me during the day.3．(2016·揭阳市二模)Although he was a great genius, he suffered greatly.Some say that his madness was________he paid for his art.4．(2016·汕头市金山中学期中)Other vitamins are not made in the body. No one knows exactly________all vitamins work.5．(2016·珠海摸底)The man begged the angel to speak to God to see________he might break the rules.6．(2016·北京顺义一模) I still don’t know ________she’s planning to come to my birthday party or not.——★参考答案★——3．what这里what引导表语从句，它在从句中作宾语。
第十讲名词性从句单句语法填空1．(2018·全国卷Ⅲ)I’m not sure who is more frightened, me or the female gorilla (大猩猩) that suddenly appears out of nowhere.2．(2018·北京高考单选)Without his support, we wouldn’t be where we are now.3．(2018·江苏高考单选)By boat is the only way to get here, which is how we arrived.4．(2017·江苏高考单选)We choose this hotel because the price for a night here is down to $20, half of what it used to charge.5．(2017·天津高考单选)She asked me whether/if_I had returned the books to the library, and I admitted that I hadn’t.6．(2017·北京高考单选)Jane moved aimlessly down the tree-lined street, not knowing where_ she was heading.名词性从句指的是在主句中起的作用相当于名词的从句，主要包括主语从句、宾语从句、表语从句和同位语从句。
一、主语从句1．引导主语从句的连接词：从属连词that, whether/if；连接代词what, who, whom, whose, whatever, whichever, whoever等；连接副词when, where, why, how, whenever等。
专题九名词性从句1．that引导的名词性从句(1)that在名词性从句中不作任何成分，引导宾语从句时有时可以省略，引导主语从句、表语从句和同位语从句时不能省略。
I think that you should turn to the teacher for help.(that不充当任何句子成分，也无实际意义)我认为你应该向老师寻求帮助。
(2)that引导主语从句时，常用it作形式主语，常见句型有：①It＋be＋形容词(necessary/right/likely/unlikely/wrong/important/certain 等)＋that从句It is wonderful that all of you have passed the difficult exam!你们都通过了这次很难的考试真令人高兴！②It＋be＋名词(短语)(a pity/a shame/a surprise/no wonder等)＋that从句It is a pity that you have missed the wonderful lecture.你错过了这么精彩的演讲真遗憾。
③It＋be＋过去分词(said/told/reported/decided等)＋that从句It is suggested that the lab building (should) be built next year.有人建议实验楼明年修建。
④It＋特殊动词(seems/appears/happens/matters)＋that从句It appears that they have made the same mistake.好像他们犯了同样的错误。
[名师指津]在以下主语从句中，常使用虚拟语气，即“should＋动词原形”形式，其中的should可以省略。
①It is necessary/strange/important/natural etc.＋that ...②It is a pity that ...③It is suggested/requested/required/proposed/desired etc. ＋that ...(3)动词find, feel, think, consider, make, believe等后面有宾语补足语时，需用it作形式宾语而将that引导的宾语从句后置。
2020;2020年高考一轮复习英语（人教版）金学案语法篇名词性从句1．名词性从句试题的设问仍会坚持既注重引导词之间的语法功能差异又注重语意差异的原则，增加试题的综合化程度考查。
情景设置将越来越生动真实，但试题的难度不会大幅度提高。
2．名词性从句与强调句型和定语从句融合起来进行综合考查。
既考查了考生基本知识的掌握运用能力，又考查了考生分析句式结构、辨析从句的能力。
wh词语与whever 词语的比较考查仍是未来高考命题的热点。
一、主语从句从句在句中作主语。
它可以放在谓语之前，但习惯于用it作形式主语，而把主语从句放在后面，引导主语从句的连词有that，whether，if不能引导主语从句。
连接代词有who，what，which等，连接副词有when，where，how，why等。
二、表语从句表语从句在句中作表语，位于主句中的系动词之后。
引导表语从句的连接词有that，whether，as if；连接代词有who，what，which；连接副词where，why，when，how 等。
三、宾语从句宾语从句在句中作及物动词或介词的宾语。
引导宾语从句有连接词that，if，whether。
that可以省略。
连接代词who，whose，what，whoever，whatever，which，连接副词when，where，how，why等。
有时也常用it作形式宾语，而把宾语从句放在后面。
四、同位语从句同位语从句跟在名词后面，进一步说明该名词的具体内容。
引导同位语的名词主要有fact，news，promise，idea，truth，desire，proposal，thought，suggestion 等。
连接词有that，that在引导同位语从句中一般不能省略。
也可用连接副词how，when，where，why等。
要注意同位语从句与定语从句的区别，引导定语从句的that是关系代词，在定语从句中作主语或宾语，作宾语时可以省略。
名词性从句在句子中起名词作用的从句叫名词性从句。
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，因此根据它在句中不同的语法功能，名词性从句又可分为主语从句、宾语从句、表语从句、同位语从句。
引导名词性从句的词叫做连接词，包括：1. 连词（在名词性从句中只起连接作用，不作成分）2. 连接代词（在名词性从句中作主语、宾语或表语）3. 连接副词（在名词性从句中作状语）所有的名词性从句的语序都是陈述句语序。
主语从句：是在主句中作主语的从句。
它由连接词引导，通常位于谓语动词之前。
连接词：1. 连词：在从句中不充当任何成分，常见的引导主语从句的连词有that, whether。
That he got the first prize excited him much.他获得一等奖一事使他非常兴奋。
It is doubtful whether we can get there on time.我们能否按时到达那儿还不确定。
1）that引导的主语从句：在从句中不作任何成分，也没有实际意义。
一般情况下that不可省略。
That light travels in straight lines is known to all.众所周知，光沿直线传播。
That you don't like him is none of my business.你不喜欢他不关我的事。
2）whether引导的主语从句：常置于句首，表示“是否”之意；if一般不引导主语从句。
Whether he can finish his task on time is of greatimportance.他是否能按时完成任务非常重要。
Whether you can succeed or not depends on how hard you work at it.你能否成功取决于你努力的程度。
连接代词：在从句中起名词或代词的作用，常作从句的主语、宾语、表语或定语，有具体意义且不能省略。
名词性从句复习名词性从句是历年高考的重点和难点也是热点。
名词性从句相当于名词，可用作主语、表语、宾语和同位语。
因此，名词性从句分为主语从句、表语从句、宾语从句和同位语从句。
引导名词性从句的连接词有：连接代词：who，whose，whom，what，wh ich，有词义，在从句中担任成分，如主语、表语、宾语、或定语等；连接副词：when，where．whv，how，有词义，在从句中担任成分．作状语；连接词：if（whether），asif虽有词义，但在从句中不担任成分：连接词that无词义一．课前导学1．名词性从句定义：在主句中起作用的从句。
2. 名词性从句类型：3．名词性从句的连接词：1）从属连词：和等，在从句中不充当任何成分。
2）连接代词：和等，在从句中作主语宾语表语定语。
3）连接副词：和等，在从句中作状语。
二．课中导教（一）宾语从句在复合句中作主句的宾语.引导词有连词that (that 常可省略),whether,if; 代词有who, whose,what ,which;副词 when ,where, how, why 等.如:We believe (that) he is honest.I told him (that) I would come back soon.He said (that)he would go there the next day and that his family wouldn’t go there.宾语从句的注意点：1).宾语从句一律用陈述句的语序.2).引导宾语从句的连词that也无实际意义,多数情况下可以省略.3).whether和if都可以引导宾语从句但: (1).当whether后紧跟or not时,不用if.例: I don’t know whe ther I will stay or not.(2).介词后面的宾语从句不能用if.例: I worry about whether I hurt her feeling.4).that在宾语从句中的省略与保留(1).在主+谓+it(形式宾语)+宾补+that从句(真正宾语) 的句型中不省略.例: We must make it clear that we mean what we say.(2).由连词and连接的两个由that引导的宾语从句中,第二和以后that 不省略. 例: He told me that he would come and that he would come on time. （二）主语从句定义：用作主语的从句叫主语从句，它是名词性从句之一。
第一讲名__词单句语法填空1．(2018·全国卷Ⅱ)This switch has decreased pollution (pollute) in the country’s major lakes and reservoirs and made drinking water safer for people.2．(2017·全国卷Ⅱ) It ran for just under seven kilometers and allowed people to avoid terrible crowds (crowd) on the roads above as they travelled to and from work.3．(2017·全国卷Ⅱ)This development was only possible with the introduction (introduce) of electric-powered engines and lifts.4．(2017·全国卷Ⅰ)This trend, which was started by the medical community (医学界) as a method of fighting heart disease, has had some unintended side effects (effect) such as overweight and heart disease — the very thing the medical community was trying to fight.5．(2017·全国卷Ⅲ)She is determined to carry on with her education (educate)．6．(2017·全国卷Ⅲ)She has turned down several invitations(invitation) to star at shows in order to concentrate on her studies.一、名词的单复数1．规则名词的6种复数变化形式①下列以-f 结尾的名词既可以变f 为v 后再加-es ，也可以直接在f 后加-s ： handkerchief →handkerchiefs /handkerchieves, scarf →scarfs/scarves ②巧记变-f 或-fe 为v ＋-es 的名词：[巧学助记] 为了自己(self)活命(life)，小偷(thief)和他的妻子(wife)手里拿着刀子(knife)和一片树叶(leaf)站在架子(shelf)上，把狼(wolf)劈成两半(half)。
第十讲名词性从句单句语法填空1．(2018·全国卷Ⅲ)I’m not sure who is more frightened, me or the female gorilla (大猩猩) that suddenly appears out of nowhere.2．(2018·北京高考单选)Without his support, we wouldn’t be where we are now.3．(2018·江苏高考单选)By boat is the only way to get here, which is how we arrived.4．(2017·江苏高考单选)We choose this hotel because the price for a night here is down to $20, half of what it used to charge.5．(2017·天津高考单选)She asked me whether/if_I had returned the books to the library, and I admitted that I hadn’t.6．(2017·北京高考单选)Jane moved aimlessly down the tree-lined street, not knowing where_ she was heading.名词性从句指的是在主句中起的作用相当于名词的从句，主要包括主语从句、宾语从句、表语从句和同位语从句。
一、主语从句1．引导主语从句的连接词：从属连词that, whether/if；连接代词what, who, whom, whose, whatever, whichever, whoever等；连接副词when, where, why, how, whenever等。
①That they were in truth sisters was clear from the facial similarity between them.从她们的面貌相似度就能清楚地看出她们真是亲姐妹。
②What struck me most in the movie was the father’s deep love for his son.影片中最打动我的是父亲对他儿子深深的爱。
2．主语从句一般放在句首，但有时也可用it作形式主语，而将主语从句移到句子的末尾。
常见的句型：(1)It＋be＋形容词(necessary/likely/important/uncertain等)＋that从句(2)It＋be＋名词(短语)(a pity/a shame/no wonder/no surprise等)＋that从句(3)It＋be＋过去分词(said/reported/decided/believed等)＋that从句(4)It＋不及物动词(seem, appear, happen等)＋that从句①It is uncertain what side effect the medicine will bring about, although about twothousand patients have taken it.尽管大约两千名患者已经服用了这种药，但是它会带来什么样的副作用还不清楚。
②It’s no surprise that our team has won the game.我们队获胜一点都不令人吃惊。
③It is decided that the meeting will be put off till next Monday.会议被推迟到下周一召开已经定下来了。
二、宾语从句1．引导宾语从句的连接词：从属连词that, whether, if；连接代词what, who, whose, whatever, whichever, whoever等；连接副词when, where, why, how等；从句用陈述语序。
①We promise whoever attends the party a chance to have a photo taken with the movie star.我们许诺，任何参加这个聚会的人都有跟那个电影明星合影的机会。
②I truly believe that beauty comes from within.(2015·北京高考单选)我确信美来自内在。
③We must find out when Karl is coming, so we can book a room for him.(2015·重庆高考单选)我们必须弄清楚卡尔什么时候来，以便我们可以为他预订房间。
2．it作形式宾语的宾语从句(1)一些动词后的宾语从句有宾语补足语时，则需要用it作形式宾语，而将that引导的宾语从句后置。
常见的这类动词有：find, feel, think, consider, believe, guess, suppose, make等。
He has made it clear that the meeting will not be postponed.他清楚地表明会议不会被推迟。
(2)动词hate, like, dislike, appreciate, enjoy等表示“喜欢”、“厌恶”的动词以及一些动词短语see to, depend on, rely on等常用it作形式宾语，而将宾语从句后置。
I shall see to it that he is taken good care of when you are absent.你不在的时候，我会确保把他照顾好。
三、表语从句1．引导表语从句的连接词：从属连词that, whether；连接代词what, who, whose, whatever, whichever, whoever等；连接副词when, where, why, how等；从句用陈述语序。
①This is what my father has taught me —to always face difficulties and hope for the best.(2018·北京高考单选)这就是父亲教我的——总是要面对困难，并且抱最大的希望。
②I’d like to start my own business — that’s what I’d do if I had the money.我愿意自己创业——那就是如果我有钱将会做的事情。
2．as if/as though引导的表语从句as if/as though 引导的表语从句常跟在be 动词，seem, look, taste, sound, feel, appear 等动词之后。
The thick smog covered the whole city. It was as if a great black blanket had been thrown over it.浓雾覆盖着整座城市。
好像把一个巨大的黑色的毯子扔到它的上面。
3．because, why 引导的表语从句because, why 也可引导表语从句，但because 引导的表语从句，主语不能是reason 或cause (该结构常用that 引导)。
常用于以下句型：⎩⎪⎨⎪⎧ This/That is/was why ... 这/那是……的原因This/That is/was because ... 这/那是因为……The reason why ... is/was that ... ……的原因是……①From space, the earth looks blue. This is because about seventy-one percent of its surface is covered by water.从太空中看，地球是蓝色的。
这是因为地球表面大约71%被水覆盖。
②The reason why he didn ’t pass the exam was that he was too careless.他没有通过考试的原因是他太粗心了。
四、同位语从句同位语从句在句中作某一名词的同位语，位于该名词之后，用以说明该名词的具体内容。
1．常见的后跟同位语从句的名词有：我对自己承诺：今年，我高中的第一年，会有所不同。
②—Is there any possibility that you could pick me up at the airport?—No problem.——你有可能到机场接我吗？——没问题。
2．引导同位语从句的连接词有：that, whether, how, where, when, why 等。
①Evidence has been found through years of study that children ’s early sleeping problemsare likely to continue when they grow up.通过多年的研究发现：有证据表明孩子的早期睡眠问题很有可能会随着他们的成长继续下去。
②She asked a question why there was a delay.她问了发生延误的原因。
③I have no idea when he will come back home.我不知道他什么时候回家。
[名师指津] 在同位语从句中，that, whether 不作句子成分。
that 无实义，whether 意为“是否”，if 一般不引导同位语从句。
引导同位语从句的连接词一般都不能省略。
[典题精选][我来改正] [常设误点] ①(2015·全国卷Ⅱ)Afterlooking at the toy for sometime, he turned around andfound where his parents weremissing. ①where →that 或去掉where (1)从属连词与连接副词之间的错用 从属连词有that /whether/if 等，连接副词有when, where 等。
从属连词不作成分，而连接副词作状语。
②That is which other teacherssay. ②which →what (2)连接代词(what, which 和who 等)之间的错用引导名词性从句且在从句中作主语或宾语时应用what(什么)；which(哪一个)；who(谁)等，注意它们之间意义的差别。
