第一篇：高中名词性从句教案
高中英语语法之名词性从句
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，名词性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.主语从句
1、作句子主语的从句叫主语从句。主语从句通常由从属连词that，whether，if和连接代词what，who，which，whatever，whoever以及连接副词how，when，where，why等词引导。that在句中无词义，只起连接作用；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当从句的成分。例如： What he wants to tell us is not clear.他要跟我们说什么，还不清楚。Who will win the match is still unknown.谁能赢得这场比赛还不得而知。
It is known to us how he became a writer.我们都知道他是如何成为一名作家的。
Where the English evening will be held has not yet been announced.英语晚会将在哪里举行，还没有宣布。
另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气“(should)+do”，常用的句型有：It is necessary(important, natural, strange, etc.)that …
It is suggested(requested, proposed, desired, etc.)that…
2、第一部分：常规主语从句，即句子在复合句中充当一个主语 主语从句的时态：不受主句的时态影响和限制。
（1）That he finished writing the composition in such a short time surprised us all.（2）Whether we will go for an outing tomorrow remains unknown.（3）Who will be our monitor hasn't been decided yet.小结:（1)引导主语从句连词有that,whether,who,what,whatever等（2)连词位于句首不能省略 第二部分：为了防止句子头重脚轻，通常把形式主语it放在主语位置，真正主语搁置于句末（1）It is certain that he will win the match.小结:（1)以that 引出的主语从句,常以形式主语it引导.It is +形容词/名词/某些动词ed + that 从句.（2)在有些that从句中要用虚拟语气(should+do/should+have done)例句4,5,6,11.3、主语从句的用法
主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。
用it 作形式主语的结构
(1)It is ＋名词＋从句
It is a fact that … 事实是…
It is an honor that …非常荣幸
It is common knowledge that …是常识
(2)it is ＋形容词＋从句
It is natural that… 很自然…
It is strange that… 奇怪的是…
(3)it ＋不及物动词＋从句
It seems that… 似乎…
It happened that… 碰巧…
(4)it is＋过去分词＋从句
It is reported that… 据报道…
It has been proved that… 已证实… 4.What 与that 在引导主语从句时的区别
What 引导主语从句时在从句中充当句子成分，如主语．宾语．表语，而that 则不然。例如： What you said yesterday is right.三、宾语从句
名词句用作宾语的从句叫宾语从句。引导宾语从句的关联词与引导主语从句表语从句的关联词大致一样，在句中可以作谓语动词或介词及非谓语动词的宾语。1.宾语从句的连接词 从属连词：连接宾语从句的从属连词主要有that,if,whether.that引导表示陈述句的宾语从句,而if和whether引导表示“是否”的宾语从句.The reporter asked if the government would take necessary measures to put down the to-do.记者问政府是否会采取必要的措施镇压骚乱.如果从句是一个客观真理,那么从句的时态不根据主句的时态而变化 The teacher said that the moon goes around the earth yesterday.老师昨天说月亮绕着地球转.当宾语从句的引导词是who,which,what,when,where,how,why等表疑问时,不能按正常语序安排,经常将这类引导词置于句首
Who do you think the public might choose as their favorite singer this year?你认为今年公众会选谁为他们最喜欢的歌手.5.动词的宾语从句
大多数动词都可以带宾语从句
We all expect that they will win , for members of their team are stronger.我们都预料他们会赢,因为他们的队员更强壮.He told us that they would help us though the whole work.他告诉我们在整个工作中,他都会帮忙的.动词短语也可以带宾语从句
常见的这些词有:make sure确保 make up one’s mind下决心 keep in mind牢记 Make sure that there are no mistakes in your papers before you turn them in.在上交试卷前确保没有任何错误.6.宾语从句的否定转移
主句的谓语动词是think,believe,imagine,suppose,consider,espect,fancy,guess等,并且主句的主语是第一人称而且为一般现在时,从句的否定词一般要转移到主句上来,其反义疑问句一般与宾语从句一致.I don’t think he will come to my party.而不能说成I think he won’t come to my party.我认为他不会来我的舞会.I don’t believe that man is killed by Jim,is he?
我认为那个人不是Jim所杀的,是不是? 如果宾语从句中有某个含有否定意义的形容词或副词,其反义疑问句要用肯定形式.We find that he never listens to the teacher carefully,does he? 我们发现他从来不仔细听老师讲课,是不是?
四、表语从句
1、表语从句就是用一个句子作为表语。说明主语是什么或者怎么样，和连系动词一起构成谓语。其基本结构为：主语 + 系动词 + 从句。例如：
定义：A The problem is puzzling.这问题令人困惑 主语 连系动词 形容词作表语
The problem is when we can get a pay rise.问题是什么时候我们可以得到加薪.主语 连系动词 一个句子作表语---表语从句
2、连接表语从句的连接词有：that, what, who, when, where, which, why, whether,how, 有时用as if引导。He has become what he wanted to be ten years ago.他已经成为了他10年前想成为的。She has remained where I stood yesterday for an hour.她一直在我昨天站的地方站了一个小时。His suggestion is that we should stay calm.他的建议是，我们应该保持冷静。
The question is when he can arrive at the hotel.问题是，他什么时候可以到达酒店。
who will travel with me to Beijing tomorrow.谁与我明天将前往北京。
how I can persuade her to join us in the party.我怎么能说服她加入我们的派对。
whether the enemy is marching towards us.是否敌人正向我们行进.It looks as if it is going to rain.看上去天要下雨了。
【注意】1.当主语是reason时，表语从句要用that引导而不是because。例如：
The reason was that he was lazy.
第二篇：名词性从句教案
名词性从句包括：
主语从句
表语从句
宾语从句
同位语从句
• The question is who can complete the difficult task.• He has no idea what a remarkable woman Mary is.• That she was able to come made us very happy.• He objected that it was impossible.一、主语从句
1、主语从句在复合句中作主句的主语
That she was chosen made us very happy.What caused the accident is a complete mystery.Whoever comes to the party will receive a present.【注】 “that”在主语从句中不作任何成分，但放在句首时不能省略。
2、问：怎么才能 that 不放在句首呢？
答：有时为了使句子结构平衡，避免“头重脚轻”，常用it作形式主语，而把从句放在后面。
It depends on the climate whether they are going shopping today.试试看：新产品销售得好不好取决于它的质量和价格。
It作形式主语的几种结构：
1、It+ be +形容词+ that从句
It is strange that he knows nothing about it.2、It+ be +名词+ that从句
It is a pity that they have failed in the match.3、It+动词+宾语+ that从句
It depends on its quality and price whether a new product sells well.4、It+动词的被动结构+ that从句
It is still unknown which team will win the match.作文常用句式：
1、It turned out that...结果是„
2、It has been proved that...已经证明„
3、It is well-known that...众所周知„
4、It must be pointed out that...必须指出„
二、表语从句
1、表语从句在复合句中作主句的表语
The reason is that you don’t trust her.This is where I disagree.例：The reason ____ we didn't trust him is ______ he has often lied． reason 后面的表语从句只能用that 引导, 不能用because 引导, 但reason后面的定语从句可以用why。
2、表语从句不能用if引导，但可用as if引导。例如： He looked as if he was going to cry.三、宾语从句
宾语从句在复合句中作主句的宾语，宾语从
句一般放在动词、介词或形容词后。
She explained that she was late because of the heavy traffic.【注】
① 有时要用it作形式宾语，而把宾语从句放在句子的后面。He has made it clear that he will not give in.①
如do you think/believe/suppose/expect/imagine后接特殊疑问词引
导的宾语从句，疑问词要放在句首。
What do you think is going on outside? ③
I/We(don’t)think/believe/suppose/expect/imagine后接宾语从句
时，反义疑问句要与从句中的主语和谓语保持一致。
I don’t suppose he cares，does he? ④ 在宾语从句中，引导词whether和if基本一样，但介词后的宾语
从句多用whether。
It all depends upon whether we can get their cooperation.⑤ 动词doubt如用于肯定句，其后的宾语从句常用if/whether引导，如用于否定句或疑问句，则宾语从句用that引导。
I doubt if/whether our football team will win the match.I don’t doubt that I can defeat him in the contest.四、同位语从句
在主从复合句中作同位语的从句称为同位语从句。同位语从句常放在fact, news, idea, truth, hope, problemin, formation 等名词后面，用以说明该名词的具体内容。
The news that they had won the game soon spread over the whole school.
引导同位语从句的关联词用that时，不能省略，不能用which替代
1.引导词that与what的区别
what从句中作句子成分(主语、宾语、表语等)what=all that/everything that that引导的主语从句放在句首时，不能省略
What we can’t get seems better than what we have.That a new teacher will come to teach us geography is true.2.引导词if和whether的区别
whether或if均可表示“是否”的情况如下：
引导宾语从句。例如：
I wonder whether/if the news is true or not. 只能用whether不能用if表示“是否”的情况：
在表语从句中。例如：
The question is whether the film is worth seeing. 在同位语从句中。例如：
The news whether our team has won the match is unknown.Answer my question whether you are coming. 在主语从句中。例如：
Whether we shall attend the meeting hasn’t been decided yet.如果用it作形式主语，则whether和if都能引导主语从句。
例如：It hasn’t been decided whether/if we shall attend the meeting. 用于句型“名词+as to + whether”中。例如：
There is some question as to whether the public should be told about the accident. 后面直接跟动词不定式时。例如：
He doesn’t know whether to stay or not. 后面紧接or not时。例如：
We didn't know whether or not she was ready. 用if会引起歧义时。例如：
Please let me know if you like it.该句有两个意思 “请告诉我你是否喜欢”或 “如果你喜欢，请告 诉我”用了 whether就可以避免歧义。3.引导词who与whoever的区别
whoever引导名词性从句时，相当于anyone who或those who，它
既是从句的主语，又是主句的主语。而who只作从句的主语，它
引导的从句才是主句的主语。
Whoever has helped to save the drowning girl is worth praising.Who will be elected president doesn’t make much difference to me.4.引导词what与whatever的区别
whatever引导名词性从句时，与what差不多，只是语气上更强
些，有“任何一切„„”之意。
This is exactly what I want. It is generally considered unwise to give a child whatever he or she wants.5.同位语从句与定语从句的区别
同位语从句本身完整，定语从句不完整，因此其前的名词在定语从句中通常作主语、宾语或表语等成分。I made a promise that if anyone set me free I would make him very rich.The mother made a promise that pleased all her children.从结构看，同位语从句常由连接词that引导，虽在从句中不充 当任何成分,但不可省略。而定语从句中由关系代词引导，代替先行 词，并在从句中充当成分（主语或宾语），充当宾语时常可省略。6.It 作形式主语和it引导强调句的比较
将 “it is/was„that„”去掉后,句子仍然成立的是强调句,否则是that引导的主语从句 如：
It is a pity that you didn’t go to see the film.It is in the morning that the murder took place.It is John that broke the window.7.whoever与no matter who；whatever与no matter what whoever和whatever既可以引导名词性从句，也可引导让步状语
从句；no matter who和no matter what只引导让步状语从句。Whatever(＝No matter what)you may think，I’m going ahead with my plans.Take whatever you need and leave me alone.9.名词性从句中的语气
(1)在It is necessary/natural/important/strange...＋that从句中，从句中的谓语动词用“should＋原形动词”表虚拟语气，且should 可省略。
It is necessary that the problem should be settled at once.(2)表示“建议、命令、要求”意义的动词，后接that从句时，从句
中的谓语动词要用虚拟语气，即“should＋原形动词”，且should 可省略。
Bob’s doctor suggests that he(should)rest for a few days.(3)表示“建议、要求、命令、想法”意义的名词，后接that从句时，从句中的谓语动词要用虚拟语气：“should＋动词原形”，should可以省略。
这类名词有：advice，agreement，command，decision，demand, determination，order，preference，proposal，request，requirement等。This is our only request that this(should)be settled as soon as possible.同样，如主语是表示“建议、要求、命令、想法”意义的名词，那么that引导的表语从句中也要用虚拟语气。
Her suggestion was that they(should)carry on their conversation in French.
第三篇：名词性从句教案
新课程与创新教学活动设计大赛
类型： 语法
乌鲁木齐外国语学校（第十二中学）
赵丽
名词性从句学案
一、学习目标
1、本阶段大纲要求
近年来，引导名词性从句的连接代词及连接副词为高考必考项目。此语法项目除单选外，完形，短文改错也考。另外学好它，对阅读理解是大有好处的。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
2、本阶段重点、难点
1表命令建议order,(命令），suggestion, advice(建议)
的名词后的表语从句 2.that.whether的区别 3.What, that, which 4:that 的省略
5: whoever引导的名词性从句 6：because引导的表语从句 7: 名词性从句皆用陈述语序
二、基础知识体系、重点内容、题的类型及解题方法等 基础知识体系
名词性从句的连接词按其在从句中所起的作用分为：
1）连接代词：who(-ever), what(-ever), which(-ever), whom(-ever), whose 2）连接副词：when, where, why, how 3）连接词：that, whether, if 连接代词和连接副词在从句中充当一定的句子成分，而连接词在从句中不充当句子成分，只起连接作用
名词性从句的难点把握
1由whoever/whatever/whichever/whomever引导的名词性从句 这些词引导的名词性从句相当于带有定语从句的名词词组：
whoever=anyone who„“任何„„的人”；whomever是whoever的宾格形式 whatever=anything that„ “任何„„的物”
whichever=any „ that„ “任何„„的（已知范围内的或上文提到过的）人或物” that引导的同位语从句与定语从句的区别：
The suggestion that the students(should)have plenty of exercise is very good.The suggestion(that/which)he raised at the meeting is very good.对比发现上句中的that只起连接作用，在从句中不充当任何成分，因此它引导的是同位语从句，其中that不能省略；下句中that不仅起引导作用，同时在从句中还充当了动词raised的宾语，因此它是定语从句，此时that可用which代替，又因其在定语从句中充当宾语，故又可省略。
2．名词性从句中的what和that what和that的选用一直是学生学习的一个难点，正确选择的关键是看该从句结构是否相对完整、是否缺少主语、宾语或表语等成分而定。he said at the meeting surprised everybody present.That he said nothing at the meeting surprised everybody present.The problem is what we should do to protect the ear What th.The fact is that we should do something to protect the earth.3．名词性从句中的whether和if 在主语从句、表语从句和同位语从句中遇“是否”句用whether引导而不用if；在宾语从句中whether和if常可换用。4．名词性从句中的虚拟语气
表示“坚持、命令、建议或要求”等词义出现时，不管是在哪一种从句中，常用虚拟语气，从句中的谓语动词形式为（should）+ 动词原形，其中should可省略。常用词有insist, suggest, order, demand等。三． 教学步骤。1.复习句型结构。
带领学生复习一下英语当中的五种简单句型结构以及主从复合句和并列句，并分清楚他们之间的区别与联系。
简单句 S + V
He fled.S + V + O
He didn’t invite me.S + V + P
I am a teacher.S + V + Oo
He promised me a bike as my birthday gift.S + V + O + C
I want you to assist me.简单句 + 并列连词
+简单句
→ 并列句
简单句 + 并列连词
+ 主从复合句 → 并列句
2.分辨句子。从以下所给的例题中选出名词性从句并标明是哪种名词性从句。
1.The people invited to the ball may dress __ they please.宾从
A.however
B.whatever
C.wherever
D.whenever 2.I can't quite remember __ you started doing the work.宾从
A.that it was when
B.when it was that C.when was it that
D.that was it when 3.Please tell me ________ you would like to have your coffee, black or white? 宾从
A.what
B.whether
C.when
D.how 4.Is this the factory _______ you visited the other day? 定从 A.in which
B.which
C.where
D.the one 5.But the fact remains ________ we are behind other groups.同位语从句 A.that
B.when
C.what
D.it 6.We leave it to your own judgment _______ you should do it.宾从 A.because
B.that
C.whether
D.what 7.This is the museum ______ we saw an exhibition the other day.定从 A.where
B.which
C.that
D.in that A.regard that
B.consider that
C.look that
D.treat what 8.____ has made China ____ she is today? 主从
A.What, that
B.That, what
C.What, what
D.That, that 9.______ frightened us ____ two lights appeared suddenly in the darkness.主从 表从
A.It was, that B.What, most was that
C.It, mostly that
D.What, most was what 10.They are good friends.____ is no wonder that they know each other so well.主从
A.This
B.That
C.There
D.It 11.It was ______ he said ______ that disappointed me.强调句 主从
A.what;that
B.that;that
C.what;what
D.that;what 12.He has given us a suggestion ____ we should buy a cottage in the country with the money _________we have saved.同位语从句 定从
A.that , what
B.which, which
C./, which
D.that, /
13.She is pleased with ____ you have given him and all ______you have told him.宾从 定从
A.that, that
B.what, that
C.what, which
D.which, what 14.The reason __ we were late is __ we missed the train.定从 表从
A.why;because
B.why;that
C.why;why
D.that;that 因高三为复习课，所以在复习完基本句型的基础上作此练习，可以帮助学生进一步去熟悉句型结构，为名词性从句的掌握打下基础。三．做题，讨论，自我总结。
在这一板块，先给学生8分钟时间完成上述题目，之后三人小组讨论进行答案分析，然后老师给出正确答案，并对学生自己无法解决的题目进行讲解。然后，再次进入讨论环节，并进行自我总结，总结出在做名词性从句当中须注意的点。1.连词的选用。1.名词性从句的连接词按其在从句中所起的作用分为：
1）连接代词：who(-ever), what(-ever), which(-ever), whom(-ever), whose 2）连接副词：when, where, why, how 3）连接词：that, whether, if 连接代词和连接副词在从句中充当一定的句子成分，而连接词在从句中不充当句子成分，只起连接作用
2.名词性从句需使用陈述语气。3.连词if和 whether 的区别。
A 在动词不定式之前只能用whether。如：
例8 I can’t decide whether to stay.我不能决定是否留下。
B 在whether …… or not 的固定搭配中。如：
例9 I want to know whether it’s good news or not.我想知道是否是好消息。
C 在介词后，只能用whether。如：
例10 His father is worried about whether he lose his work.他的父亲担心是否会失去工作。
D 宾语从句放在句首表示强调时，只能用whether。如：
例11 Whether they can finish the work on time is still a problem.他们是否能准时完成这项工作还是个问题。
E 用if会引起歧义时，只用whether。如：
例12 Could you tell me if you know the answer ?
5.表命令建议order,(命令），suggestion, advice(建议)
的词后跟的从句使用虚拟语气sb should do, should 可以省略 一主张：insist 二命令：order command 三建议：suggest advise recommend 四命令：desire demand require request 6.that引导的同位语从句与定语从句的区别：
The suggestion that the students(should)have plenty of exercise is very good.The suggestion(that/which)he raised at the meeting is very good.对比发现上句中的that只起连接作用，在从句中不充当任何成分，因此它引导的是同位语从句，其中that不能省略；下句中that不仅起引导作用，同时在从句中还充当了动词raised的宾语，因此它是定语从句，此时that可用which代替，又因其在定语从句中充当宾语，故又可省略。四.巩固练习。五.课后反思。
因为是高三的学生，所以本节课主要以复习旧知识和巩固练习为主，而且在整节课中以学生为主体，让学生去活动以得出最后的知识，效果较好。但是因为有的学生基础知识较差，在活动中参与性不强。
第四篇：名词性从句 (教案)
名词性从句（教案）
在句子中起名词作用的各种从句，通称为名词性从句。根据它们在句子中所起的作用，可分为主语从句、宾语从句、表语从句和同位语从句。
关于what 所引导的名词从句
what 引导名词性从句时，可表示两种意义：一是疑问意义，即“什么”；二是表示“„的东西”、“„事情”，相当于the thing which.Do you know what that is ? This is what he has asked for.主语从句
主语从句可以直接放在主语的位置上；也可以用it 作形式主语，而将从句放在句末。That 引导的主语从句用it 作形式主语的尤为多见。1)That light travels in straight lines is known to all.It is known to all that light travels in straight lines.2)When the plane is to take off has not been announced.It has not been announced when the plane is to take off.用it 作形式主语从句结构
it 引导的主语从句已经形成下面的四种固定用法： 1）It is ＋名词＋从句 It is a fact that „ 2）It is ＋形容词＋从句 It is necessary that.„ 3）It is ＋过去分词＋从句 It is said „
4）It ＋不及物动词＋从句 It seems that „
注意：不要将强调句里的强调词it 和形式主语it 混淆起来。强调句是it is(was)＋强调部分＋ that(who)„。John bought a toy plane for his son yesterday.It was John that(who)bought a toy plane for his son yesterday.（强调主语）
It was a toy plane that John bought for his son yesterday.（强调宾语）
It was for his son that John bought a toy plane yesterday.（强调目的状语）
It was yesterday that John bought a toy plane for his son.（强调时间状语）
宾语从句
1．作动词的宾语：
Everybody knows that matter takes up space.2．作介词宾语：
This depends on how hard you work.3．作形容词宾语：
They are confident that they can do it well.4．要注意的问题：
1）引导词that的省略：
I think(that)you are right.2）形式宾语it：
He has made it clear that the meeting will not be postponed.3）否定意义的转移：
think, believe, suppose, expect, I don’t think he has time to play chess with you.I don’t suppose it is the rush hour yet.4)插入语疑问句：
I think that John will arrive at five o’clock.When do you think John will arrive? They said that they had cleaned the classroom.What did they say they had done?
表语从句
1．和be, seem, remain, look联系动词连用的表语从句：
My idea is that this plan should be carried out immediately.It looks that it is going to rain.2．Where, why, how 等引导的表语从句： That is why we called off the meeting.This is how we did it.注：主语是reason的表语从句that 要用引导，不要误用because: The reason(why)he was late was that he missed the bus.(不能用because)
同位语从句
同位语从句用于表示名词的内容，对其加以解释。常见的词有：fact, idea, news, conclusion.The doctor came to the conclusion that the patient was suffering from cancer.The discovery that every heavenly body has gravity was made by Newton.注：同位语从句和定语从句的区别：同位语从句是对前面名词的补充说明；定语从句则是对前面名词的修饰和限定。
The idea that one can do the work without thinking is wrong.（同位语从句）
The idea that you put forward at the meeting is wrong.（定语从句）
第五篇：名词性从句教案
名词性从句复习教案
一、学习目标 1.本阶段大纲要求
近年来，引导名词性从句的连接代词及连接副词为高考必考项目。此语法项目在语法填空中经常出现。另外学好它，对阅读理解也是大有好处的。
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
2、本阶段重点、难点
(1)表命令建议order,(命令），suggestion, advice(建议)的名词后的表语从句(2)that和whether的区别(3)what, that, which的用法(4)that 的省略
(5)whoever引导的名词性从句(6)because引导的表语从句(7)名词性从句皆用陈述语序
二、基础知识体系、重点内容、题的类型及解题方法等 1.基础知识体系
名词性从句的连接词按其在从句中所起的作用分为：
1）连接代词：who(-ever), what(-ever), which(-ever), whom(-ever), whose 2）连接副词：when, where, why, how 3）连接词：that, whether, if
连接代词和连接副词在从句中充当一定的句子成分，而连接词在从句中不充当句子成分，只起连接作用 2.名词性从句的难点把握
1)由whoever/whatever/whichever/whomever引导的名词性从句
这些词引导的名词性从句相当于带有定语从句的名词词组：whoever=anyone 1 who„“任何„„的人”；whomever是它的宾格形式whatever=anything that„ “任何„„的物”
whichever=any „ that„ “任何„„的（已知范围内的或上文提到过的）人或物” 2）that引导的同位语从句与定语从句的区别：
The suggestion that the students(should)have plenty of exercise is very good.The suggestion(that/which)he raised at the meeting is very good.对比发现上句中的that只起连接作用，在从句中不充当任何成分，因此它引导的是同位语从句，其中that不能省略；下句中that不仅起引导作用，同时在从句中还充当了动词raised的宾语，因此它是定语从句，此时that可用which代替，又因其在定语从句中充当宾语，故又可省略。2．名词性从句中的what和that what和that的选用一直是学生学习的一个难点，正确选择的关键是看该从句结构是否相对完整、是否缺少主语、宾语或表语等成分而定。He said at the meeting surprised everybody present.That he said nothing at the meeting surprised everybody present.The problem is what we should do to protect the earth.The fact is that we should do something to protect the earth.3．名词性从句中的whether和if 在主语从句、表语从句和同位语从句中遇“是否”句用whether引导而不用if；在宾语从句中whether和if常可换用。4．名词性从句中的虚拟语气
表示“坚持、命令、建议或要求”等词义出现时，不管是在哪一种从句中，常用虚拟语气，从句中的谓语动词形式为（should）+ 动词原形，其中should可省略。常用词有insist, suggest, order, demand等。
三、典型例题
典型例题分析：
1．____we’ll go comping tomorrow depends on the weather.(96)A If B Whether C That D Where 解析：根据句意“我们明天是否能去野餐得看天气”，在if和whether中选择，因为句中引导的是主语从句，而if不能引导主语从句，故答案为B。2．____we can’t get seems better than ____ we have.(96)A What, what B What, that C That, that D That, what 解析：本题正是从学生学习名词性从句的一个难点what和that的不同用法切入命题。that在引导名词性从句时只起连接作用，在从句中不作任何成分，从句结构相对完整，具有陈述意义，what在引导从句的同时在从句中充当主语、宾语、表语或定语等句子成分。在本题中，从句中的谓语动词get和have均为及物动词，其后都缺了宾语，因此答案为A。
3．I remember ____ this used to be a quiet village.(93)Ａ when B how C where D what 解析：本句从空挡至句末作及物动词remember的宾语，是一个宾语从句，从句中主语、谓语、表语都有，结构相对完整，因此连接代词what首先排除；又因句中已提到“这个村庄”、“安静”，表示地点、状态的where，how都可排除，正确答案为A，直译为“我还记得这村庄过去是个安静的村庄的那个时候，”意译“我记得这里曾一度是个安静的村庄。”
4．Go and get your coat.It’s ____ you left it.(92)A there B where C there where D where there 解析：题中从空挡至结束是一表语从句，there不能引导名词性从句，故可排除A和D，选项C句意繁复，因此正确答案为B，意思是“它还在你原来所放的地方。”where在从句中作时间状语。
5．No one can be sure ____ in a million years.(91)3 A what man will look like B what will man look like C man will look like what D what look will man like 解析：本题从名词性从句的词序排列切入命题，从另一角度考测学生对名词性从句的句法结构掌握情况。当名词性从句由一含疑问意义的连接词引导时，必须把该引导词放在名词性从句的开头，从句中使用主谓结构的陈述句语序，故答案为A。6．It worries her a bit ____ her hair was turning grey.(92)A while B that C if D for 解析：从句子的句法结构看，四个选项均能使题干结构完整，while能引导时间状语从句和表示前后两种情况对照的分句，if能引导宾语从句和条件状语从句，for能引导表示原因的并列句，但如选A、C或D，句首的it所指不明，故A、C、D均不是最佳选项，最佳选项为B，that引导主语从句，it作形式主语放在句首，句意为“她的头发在变白，这事儿使她有点着急。”
四、课堂强化训练 主语从句典型错误
1.That she wants to know is which dress she should buy.2.He will give up his job surprises all of us.3.No matter who breaks the law will be punished 4.If the meeting will be held in our school is not known yet.5.That worried her a bit that he couldn’t get in touch with her friend.6.He is said he has gone to America 表语从句典型错误：
1.The reason why I was late was because I missed the train.2:.-----I rang you at about ten, but there is no reply.-----Oh, that was probably why I was seeing the doctor.3.The difficult we now meet with is if we can persuade him to tell the truth.4
点击咨询 