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1、名词性从句教学设计名词性从句教学设计课题考点、知识点学习目标语法运用：名词性从句掌握名词性从句的用法课时1名词性从句（一、二、三层）；1.重点：名词性从句的用法（一、二、三层）；重、难点2.难点：名词性从句的连接词的使用，和定语从句的区别（一、二、三层）。学习环节和内容一一.名词性从句的含义及连接词名词性从句的含义及连接词名词性从句的含义:在复合句中起名词作用的从句叫做名词性从句。它学生活动建议教师活动建议调整记录1.使用多媒体完成包括主语从句、宾语从句、表语从句和同位语从句。深入理解，并练习。引导名词性从句的连接词可分为四类：1.观察学习；2.反复操练。1.that（无含义，不充当成分）2.
2、深入理解，掌握知识 2.whether,if（有“是否”的含义，但不充当成分）点的使用要领；3.连接代词：what,whatever,who,whoever,whom,whomever,whose,3.观察学习，并运用。which,whichever.（在从句中做主语、宾语、表语和定语）连接副词：when,whenever,where,wherever,how,however,why（在从句中做状语）14.as if,as though,because（不充当成分，在名词性从句中只引导表语从句）二二.四类名词性从句语法要点四类名词性从句语法要点1.1.主语从句主语从句在整个句子中用作主语的从句
3、叫主语从句。What he wants to tell us is not clear.他要跟我们说什么，还不清楚。Where the English evening will be held has not yet been announced.itit 作形式主语：作形式主语：有时为避免句子头重脚轻，常用形式主语it 代替主语从句作形式主语放于句首，而把主语从句置于句末。用形式主语 it 引导的主语从句相当多，有些已形成固定的语法和译法。常见的有：It is said that.据说 It is reported that.据报导It is well known that.众所周知 It
4、is announced that.据宣布It is believed that.人们相信 It is thought2that.人们认为It is understood that.自不待言 It must be pointed outthat.必须指出It must be admitted that.必须承认It is clear that很明显注意：注意：(1)分句置于句首时，that 绝对不可以省略。That the driver could not control his war was obvious.(2)if 不能用在主语从句中，而是用whetherWhether he left
5、(or not)is unknown(3)当主语从句作主语时，谓语动词一般用第三人称单数，下面这个句型例外。What we need are many more books.2.2.宾语从句宾语从句在整个句子中用作宾语的从句叫宾语从句。He has told me that he will go to Shanghai tomorrow.We must never think(that)we are good in everything while others3are good in nothing.我们决不能认为自己什么都好，别人什么都不好。itit 作形式宾语：作形式宾语：在“主语+谓语
6、+宾语+宾补”的句型中，如果宾语是从句的形式，则必须用 it 做形式宾语，把真正的宾语即宾语从句置于句末。We found it impossible that the so much work will be finished oneday.I think it certain that she will do well in her exam.注意：注意：（1）连词 whether 和 if 可以互换，但注意下列情况连词后紧跟 or not 时用 whetherI want to know whether or not they will come.作介词宾语是用 whether 引导宾语
7、从句He was interested in whether he saw her there.连接词后直接加不定式，不能用if 只能用 whetherHe doesnt know whether to stay or not.如果宾语从句是否定时，一般用if 引导I care if he will not attend the meeting.4（2）当主语是 I,we，主句用 think,believe,suppose,expect,imagine五个动词时，用否定转移 I dont think he will win the game,will he?（3）that 在宾语从句常可以省略
8、，但由and 或 but 连接两个或多个宾语从句时，仅可以省略第一个连词thatHe said(that)he had eaten nothing but that he wasnt hungry.注意区别注意区别 ifif 引导的宾语从句和条件状语从句引导的宾语从句和条件状语从句I dont know if he will come.If he comes,I ll letyou know.3.3.表语从句表语从句在整个句子中用作表语的从句叫表语从句。The fact is that we have lost the game.事实是我们已经输了这场比赛。That is why he did
9、nt come to the meeting.那就是他为什么不到会的原因。It looks as if it is going to rain.看上去天要下雨了。5This is because he has been working hard these days.Things are not always as they seem to be 事情并不总是如其表象。注意：注意：because，as if 和 as though在名词性从句中只能引导表语从句。4.4.同位语从句同位语从句在整个句子中用作同位语的从句叫同位语从句。同位语的含义：在句子中，如果有两个名词，并且后一个名词是对前一个
10、名词的解释说明，它们两个指的是同一个人或同一个物，那么，后面的名词就叫前面名词的同位语。例如：This is my friend,Tom.（Tom 是 my friend 的同位语。）可用于同位语从句的名词有advice、demand、doubt、fact、hope、thought、idea、information、message、news、order、problem、promise、question、request、suggestion、truth、wish、word 等抽象名词。The news that we won the game is exciting.我们赢得这场比赛的消息令人激
11、动。I have no idea when he will come back home.我不知道他什么时候回来。6The thought came to him that Mary had probably fallen ill.There is no doubt that he will come.There is doubt whetherhe will come.Word came that Napoleon would come to inspect them.同位语从句和定语从句的区别：同位语从句和定语从句的区别：that 作为关系代词，可以引导定语从句，充当句子成分，在从句中作宾
12、语时可以省略；that 引导同位语从句时，起连词的作用，没有实际意义，不充当句子成分，一般不能省略。试比较下面两个例句:I had no idea that you were here 我不知道你在这里。（that 无含义，that you were here 指的就是 idea，所以是同位语从句，不能省略 that）Have you got the idea（that）this book gives you？这本书给了你想法吗？（that 指的是 the idea，that 引导定语从句，作宾语，可以省略）三三.名词性从句中需要区分的情况名词性从句中需要区分的情况1.1.疑问词疑问词-eve
13、r-ever 既可以引导名词性从句，也可以引导让步状语从句，而既可以引导名词性从句，也可以引导让步状语从句，而 nonomatter+matter+疑问词只能引导让步状语从句疑问词只能引导让步状语从句7No matter where I go,my heart is towards China.I believer whatever he says.Whatever he says,I will never believehim.who 与 whoever 的区别who 是“谁”的意思，表示具有疑问，who 相当于 anyone who“无论谁”Whoever leaves the room
14、last ought to turn off the lights.Can you tell me who that gentleman is?2 2当名词性从句缺少主语、宾语或表语时，引导词通常用当名词性从句缺少主语、宾语或表语时，引导词通常用whatwhat，它相当于，它相当于all that,anything thatall that,anything that 或或 the thing(s)that the thing(s)that。另外，有时具有感叹意。另外，有时具有感叹意义义What we cant get seems better than what we have.Tom th
15、ought what a beautiful girl Mary was.3.3.注意区分注意区分 itit 作形式主语的主语从句与强调句作形式主语的主语从句与强调句强调句句型 It is/was+被强调部分+that,去掉 It is/was,that，句子仍然成立。It is natural that they should have different views.主语从句It is only lately that he had had a family himself.强调句8What was it that he wanted?I dont know what it was tha
16、t he wanted.It was in the hotel where he stayed that we discussed the seriousproblem4.4.注意注意 itit 作形式主语的主语从句和作形式主语的主语从句和 asas 引导非限制性定语从句引导的不同引导非限制性定语从句引导的不同It is known to all that the earth is round.As is known to all.the earth is round.四四.连接词连接词 thatthat 在名词性从句中可以省略的三种情况在名词性从句中可以省略的三种情况1.it1.it 做形式主语，做形式主语，thatthat 引导主语从句时引导主语从句时It is said(that)he has been studying abroad.据说他一直在国外学习。2.2.动词宾语从句中动词宾语从句中I think(that)you have much to improve in English.我认为你的英语需要提高的有很多。3.3.形容词宾语从句中形容词宾语从句中I am afraid(that)I will be late.9