名词性从句Noun Clauses一．名词性从句学习目标：1. 在复合句中能识别出主语从句、表语从句、宾语从句和同位语从句；2. 辨别使用引导名词性从句的连接词；3. 区分同位语从句和定语从句。
二．名词性从句在高考中的考查重点：1. that和what引导名词性从句的区别；2. 名词性从句的语序和时态；3. it作形式主语、形式宾语的几种情况；4. 宾语从句的否定转移；5. whether和if的用法区别；6. what在名词性从句中的使用；7. who / whoever, what / whatever等的用法区别；8. 连接词that的省略。
三.Lead-in1.Question:名词在句中可以充当什么成分?2. 名词性从句概念：由一个从句来充当名词的作用，如主语，表语，宾语，同位语等。
His job is important. This is his job.What he does is important. This is what he does every day.I don’t like his job. I don’t know about the man, Mr. White.I don’t like what he does every day. I don’t know about the fact that he is a teacher.3. 名词性从句四.引导名词性从句的连接词可分为三类：1. 连词：that, whether, if不充当从句的任何成分。
2. 连接代词：what, whatever, who, whoever, which, whichever, whom, whose, etc. 不仅起到连接一个句子的作用，同时也是从句的一个组成部分。
3. 连接副词：when, where, how, why, etc.五．名词性从句的用法1.主语从句Subject ClauseHow the book will sell depends on its author.That he is the best student in the class is obvious.Whether we shall attend the meeting hasn’t been decided yet.Who will go makes no difference.在一个句子中由一个句子充当的主语，这个句子叫做主语从句。
注意一:主语从句后置!为了避免主语冗长,句子头重脚轻,经常用it作形式主语,主语从句放在后面作真正的主语.1.That we shall be late is certain.It’s certain that we shall be late.2. That the earth is round is known to all.-- It’s known to all that the earth is round.3. That you missed the chance is a pity.--It is a pity that you missed the chance.it作形式主语，that引导的从句是句子的真正主语,有以下四种不同的结构：a.It + be + 形容词+ that-从句It is necessary that …有必要……It is important that …重要的是……It is obvious that …很明显……It + be + 形容词+ that-从句(常用的形容词有:likely, right , wrong, certain, necessary, important, natural, strange, obvious, clear等)从句谓语动词常用“should +动词原形”，should 也可省略。
It is necessary that we (should) buy a Chinese-English dictionary.It is likely that there will be a snowstorm tomorrow.b. It + be + -ed（said/reported）分词+ that-从句It is believed that …人们相信……It is known to all that …众所周知……It has been decided that …已决定……常用的动词-ed 形式：said, believed, hoped, reported, told, thought, advised, decided, suggested, ordered等It is said that the famous writer will visit our school next week.It was suggested that each student (should) sing a song in English.※在“It is advised/decided/suggested/ordered+ that从句”结构中，从句谓语动词常用“should +动词原形”，should 也可省略。
c. It + be + 名词(a pity/no surprise)+ that-从句It is common knowledge that ………是常识It is a surprise that …令人惊奇的是……It is a fact that …事实是……常用的名词有：a pity, a shame, a fact, an honor, a wonder, no wonder, good news等It is a pity that you didn’t attend the lecture.It is no wonder that you have achieved so much success.d.It +特殊动词+ that 从句It appears that …似乎……It happens that …碰巧……It occurred to me that …我突然想起……It happened that I knew how to deal with it.It doesn’t matter whether he is wrong or not主谓一致问题主语是名词性从句, 动词通常用单数。
What I am most interested in is American movies.我最感兴趣的是美国电影。
What you said yesterday is right.你昨天说的是对的。
whether与if均为“是否”下列情况下只用whether：Whether he will come is not clear. 1. 引导主语从句并在句首The question is whether he’ll come.2. 引导表语从句I’m not sure about whether we’ll win.3. 从句作介词宾语Whether you like it or not, you’ll have to do it.4. 从句后有"or not"2. 表语从句Predicative Clause在一个句子中由一个句子充当的表语，这个句子叫做表语从句。
The question is whether he will come or not.Changsha is not what it used to be.This is how we got out of trouble then.It looks as if it is going to rain.The fact is that he has not been seenrecently.The reason why he was late was that he didn’t get up on time.My suggestion is that we should turn the land into rice fields.如果引出表语从句的名词是一些表示“建议”或者是“命令”之类的词, 如:advice, suggestion, proposal, order, plan, idea等, 那么从句中的动词通常1) My suggestion is that we all ___________ (take) an active part in the coming sports meet.2) His proposal was that the work _________________ (finish) in five hours.宾语从句Object Clause在一个句子中由一个句子充当的宾语，这个句子叫做宾语从句。
通常放在主句谓语动词（及物动词）或介词之后作动词的宾语She did not know what had happened.She told me that she would accept my invitationI worry about whether he can get over the illness.John said that he was leaving forLondon on Wednesday. .2. 作介词的宾语Our success depends upon how well we can cooperate with one another.3. 作形容词的宾语I am afraid (that) I’ve made a mistake.that引导的从句常跟在下列形容词后作宾语：anxious, certain, convinced,determined, glad, proud, surprised, worried, sorry, ashamed, disappointed,annoyed, pleased, satisfied, content等。
4.it可以作为形式宾语it不仅可以作为形式主语，还可以作为形式宾语，而真正的宾语则放在句尾，特别是在带复合宾语的句子中。
She has made it clear that she will get married next month.下列动词后常引导宾语从句make, think, consider, feel, find等。