名词性从句（教案）（一）、名词性从句的种类：在句子中起名词作用的句子叫名词性从句。
名词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、介词宾语、表语、同位语等，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。
（二）、名词性从句的引导词：1. 由wh- 词引导的名词从句叫作名词性wh- 从句。
wh- 词包括who，whom，whose，whoever，what，whatever，which，whichever 等连接代词和where，when，how，why 等连接副词。
2. wh- 从句的语法功能除了起连接从句外，同时还充当主语、宾语、表语、状语等。
3. if，whether 引导的名词性从句从属连词if，whether 引导的名词性从句是由一般疑问句或选择疑问句转化而来的，因此也分别被称为yes-no 型疑问从句和选择型疑问从句，起连接从句作用，不充当语法成分，本身有意义，（3）由从属连词that 引导的从句叫做名词性从句时，that 只起连接主句和从句的作用，在从句中不担当任何成分，本身也没有词义。
引导的名词性从句在句中可充当主语、宾语、表语、同位语和形容词宾语，当that引导主语从句、表语从句、同位语从句时不能省略。
练习、用英语完成下列句子，并注意从句在句子中做什么成分。
1. 书销售如何取决于作者本人。
How the book will sell depends on its author.2. 在自己家里可以随心所欲In one's own home one can do what one likes.。
(直接宾语)3. The club will give whoever wins a prize.俱乐部将给得胜者设奖。
(间接宾语)4. 她会给他她想要的名字。
She will name him whatever she wants to. (宾语补足语)6. 我不知道他什么时候回来。
I have no idea when he will return. (同位语)7. 那取决于我们去哪儿。
That depends on where we shall go.(介词宾语)8. 请让我们知道你是否能在星期五以前把文章写完。
Let us know whether / if you can finish the article before Friday. (宾语)9. 问题在于我们是否应该借钱给他。
The point is whether we should lend him the money. (表语)10. 他还活着是幸运的。
That the girl is still alive is very lucky. 主语：11. John said that he was leaving for London on Wednesday. 约翰说他星期三要到伦敦去。
12. 事实是近来没有人见过他。
The fact is that he has not been seen recently. (表语)13. 近来没有人见过他这一事实令办公室所有的人不安。
The fact that he has not been seen recently disturbs everyone in his office. （同位语）14.她怀疑我们是否能够前来。
She's doubtful whether we shall be able to come. （形容词宾语）15.我担心他是否能渡过疾病的危险期。
I worry about whether he can pass through the crisis of his illness. （介词宾语）二、高考主要考查要点：（1）名词性从句的引导词的选择、（2）引导词之间的区别以及名词性从句的语序等。
所以学习名词性从句时要注意以下几点：1. 在名词性从句中，疑问句引导的名词性从句要用陈述语序。
名词性从句几乎每年高考都要考,在各种题目中也经常出现,它也是复合句中比较难以掌握的语法内容之一,因此应切实掌握这一考点。
其中名词性从句的连接词的考查是重中之重,考生如何正确理解句子的含义,选取正确的连接词,是把握好这一类题目的关键2. what 和that 引导名词性从句时的区别，that 引导名词性从句时只起连接词的作用，本身无实际意义，在从句中不作任何成分；what 引导名词性从句时本身有意义，即表示“什么”或“所……的事物”（=the thing（s）which ），同时又在从句中充当一定的成分。
练习、用what 或that填空(1). ___________ he said at the meeting is true.(2)._____________ he made a speech at the meeting is true.(3) He told me _____________ he would go hiking this Saturday.(4) He told me _____________________he would do this Saturday.Answers: 1.What 2.That 3.that 4. what3. if 和whether 引导名词性从句时的区别：if 和whether 都可以用来引导名词性从句，只能用whether的情况：(1) 引导主语从句（位于句首时），(2) 表语从句、同位语从句，(3)在介词之后引导宾语从句时，（4）与动词不定式连用。
(5)与or not 连在一起时，只能用whether用if 的情况：（也可用whether）(1) 与or not 连用，但不连在一起，(2) 在主语从句中it作形式主语时。
练习、用if 和whether填空(1). The question is ______________ they will come here on time.(2). I didn’t know ________ or not she was ready.(3) I didn’t know _____________ she was ready or not.(4). ______________ he will come here makes little difference.(5). It makes little difference ___________ he will come here.(6). It depends on _______________ they have enough money.(7) The problem _______________ we should go there has been decided.Answers; 1.whether 2. whether 3. if / whether 4. Whether 5. if / whether 6.whether 7. whether 4. who 与whoever，whom与whomever , whose与whosever的区别：Whoever= anyone who , whomever，whosever 分别是它们的宾格和所有格，它们都是无先行的连接代词，Whoever 在句中可以做主语，也可以做宾语，whomever只能做宾语，whosever 做定语。
练习、用who 与whoever，whom与whomever , whose与whosever填空（1）You can give the book to _____________ wants to go to read it..（2）You can give the ticket to anyone ________ wants to go to see a film.（3）Both my mother and I have a car. You can take _________ car you like.（4）In fact , we all like __________ you like.（5）In fact we all like anyone __________ you like.Answers: 1.whoever 2. who 3. whosever 4. whomever 5 whom5.which 与whichever；what与whatever 的区别：which 与whichever；what与whatever在名词性从句中可以做主语和宾语，但which 与whichever是指一定范围内（或同类中）的“哪一个”，what与whatever则没有范围，或种类不同。
练习、用.which 与whichever；what与whatever填空。
(1).I want to read ____________ book you like to read.(无范围)(2). I want to know __________ book you like to read best of the three.(有范围)(3). There are many toys and books. I don’t know _____________ I should choose.(种类不同)(4) All the ties are here.You can choose ______________ you like .(有范围)Answers: 1. what 2. which 3. what 4. which / whichever6. that与whether 的区别：that与whether都可以引导同位语从句，根据句子意思可以确定它们的用法。
意思是肯定用that，不肯定的用whether练习、用that与whether填空(1) There is no doubt _________ our team will win the match.(同位语从句，肯定)(2) I am not sure _________________ our team will defeat theirs.(宾语从句，不肯定)(3) It is certain __________ our country will become more and more powerful(主语从句，肯定)(4) The fact is _______________ more and more people have gone to big cities.（表语从句，肯定）(5) The question is __________ they will agree to our plan.（表语从句，不肯定）Answers: 1.that 2. whether 3. that 4. that 5. whether一、主语从句在句子中充当句子主语的从句叫主语从句。