What--和that-在名词性从句中的用法区别讲课稿
pep初中语法 名词性从句中that和what的用法区别
第3题补充3. 名词性从句中that和what的用法区别(转载)(2007-12-13 18:20:19)名词性从句中that和what的用法区别一．that 引导的名词性从句首先，连接代词that除引导第一个宾语从句时可以省略外，引导其他各类名词性从句皆不能省略。
例如：①It is required in the regulations that you should not tell other people the password of youre-mail account.②---- Don’t you think it necessary that he go home at once?---- but the problem is that there is no car.③There is much chance that Bill will recover from his injury in time for the race.④Our English teacher told us (that) we all did very well in the examination and that ten of us gotfull mark.以上四个句子中，that 分别引导主语从句，表语从句，同位语从句和宾语从句，除在第四个例句中第一个that 可以省略外，其他的that 均不可省略。
其次，在引导名词性从句时，that不作句子中的任何成分。
例如：①Nobody believed his reason for being absent from the class that he had to meet his uncle at theairport.该句中，that引导同位语从句，但在句中不作任何成分。
②It is our belief that improvements in health care will lead to a stronger, more prosperous economy.该句中，it 是形式主语，that引导的主语从句才是整个句子的真正主语，that在句中不作任何成分。
what和that的用法讲义--2023届高三英语复习备考
what和that的用法讲义what和that都是从句的引导词，或者说，都是可以连接主句和从句的连词。
要弄清楚这两个词的用法，我们首先要明确what和that分别都可以引导哪些从句。
一.关于whati what是名词性从句的引导词，名词性从句包括主语从句，宾语从句，表语从句，同位语从句。
所以，what可以引导的从句也就是上面提到的四类从句。
二.关于that(①that是名词性从句的引导词，所以，that也可以引导主语从句，宾语从句，表语从句，同位语从句。
②that是定语从句的引导词，所以，that还可以用来引导定语从句，放在所修饰的名词后面。
我们来看这样几个句子：1.This is what we are looking forward to. (表语从句)这是我们一直所期待的事情。
【分析】what引导的从句，放在了系动词is后面，放在表语的位置，是表语从句。
此时，what=the thing that所以，上面的句子可以改写成：This is the thing that we are looking forward to.2. What makes this shop different(主语从句)is that it offers more personal services. (表语从句)这家店与众不同的地方在于它提供更多的个人服务。
【分析】what引导的句子，放在句子开头，位于系动词is前面主语的位置，是主语从句。
此时，what=the thing that所以，上面的句子可以改写成：The thing that makes this shop different is that it offers more personal services .此外，原句that 引导的句子放在系动词is后面，放在表语的位置，所以是表语从句。
3. There are signs that restaurants are becoming more popular with families. (同位语从句)有迹象表明，餐馆在家庭中越来越受欢迎。
that与what的用法及例句PPT课件
同位语从句：
The news
(_t_h__a_t_our team has won)
主
is true.
谓
7
定语从句：
All(_t_h_a_t_I want to know)
宾主 谓
is(_w__h_a__t he meant).
主谓 8
See the flags on top of the
building? That was(__D___ we did this morning).
6)What he wanted to see was an end to all the armies
of the world. (what引导主语从句并在从句中作宾语)
19
2.What 表示“所……的(人)”意思，相当于“the person that…”等。例如：
1)He is not what he used to be.他已不是从前的他 了。
present. (what引导主语从句并在从句中作宾语)
4)What is most important in life isn't money.
(what引导主语从句，并在从句中作主 语)
5)But wait till you see what we'll make for you to
your own measure. (what引导宾语从句并在从句中作宾语)
4)Tom felt that he knew everybody's
business better
than they knew it themselves.
(that引导宾语从句)
5)We heard the news that our team had
what与that的区别
what与that的区别
that引导名词性从句中，在从句中不做任何成分，that本身无意义，只起链接作用。
what引导名词性从句，在从句中作主语、宾语、表语。
“what”表示“.....的东西或事情”
名词性从句中：区分that与what的关键是：分析句子结构，看从句是否缺少成分，缺用what，不缺用that。
Who whoever no matter who 的区别
引导名词性从句，在句中作主语时用who,意思是“谁”含有疑问意味。
whoever意为“无论谁”不含疑问意味，whoever在引导名词性从句时，相当于anyone who ,其中who引导一个定语从句紧跟其后。
另外，whoever还可以引导让步状语从句，这时whoever相当于no matter who ,但是no matter who 只能引导让步状语从句。
1、who has taken away my bag is unknown .
谁拿走了我的包还不知道，若用whoever显然句意不通。
2、I don’t want to see them ,whoever they are .
无论他们是谁，我都不想见[whoever表达的语气强烈]
3、I'm not going to let you in , no matter who you are.====I’m going to let you in ,whoever you are .
根据句意：“我不会让你进来的，不管你是谁”可知，后面是一个让步状语从句，两个都可以。
语法that与what引导名词性从句的区别
that与what引导名词性从句的区别that引导名词性从句只起连接作用，在从句中不作任何成分，无意义，在宾语从句通常省略，但在主语从句、表语从句和同位语从句中均不能省略；what除引导从句外，还在从句中作成分，意为“所……的(东西)”，在含义上等于“名词+that”。
如：1. 用that的例子●That she lacks experience is obvious. 她缺少经验，这是显然的。
（主语从句）●The police learned that he wasn’t there at th at time. 警察获知他那时不在场。
（宾语从句）●He realized that she too was exhausted. 他意识到她也精疲力尽。
（宾语从句）●My idea is that you shouldn’t have left the country. 我的意见是你不应该离开那个国家。
（表语从句）●Bob has the mistaken idea that tomorrow is a holiday. 鲍勃错误地认为明天是一个假日。
（同位语从句）●It was quite plain that he didn’t want to come. 很明显他不想来。
●It is natural that they should have different views. 他们看法不同是很自然的。
2. 用what的例子●What (=The thing that) he said was true. 他所讲的是事实。
●What he had hoped at last came true. 他希望的事终于成为现实。
●What he said is beneath contempt. 他说的话不值一理。
●What he says is true, possibly. 或许他说的是对的。
●What she saw gave her a fright. 她看到的情况吓了她一跳。
what和that的用法区别
the＋名词＋that”或者all that, 即好像是既包括了先行词也包含了
关系代词，因此，有学者称之为关系代词型what。如：
seemed to be a long time, he came up again.
1 _T_h_a_t_ she lacks experience is obvious. 2 The police learned _t_h_a_t _ he wasn’t there at that time. 3 He realized _th_a_t__ she too was tired. 4 My idea is _t_h_a_t you shouldn’t have left the country. 5 Bob has the mistaken idea _th_a_t_tomorrow is a holiday. 6 It was quite plain _t_h_a_t_ he didn’t want to come. 7 It is natural _t_h_a_t_ they should have different views.
that—从属连词
主语从句 宾语从句
引导_名_词__性_从__句___， 表语从句
_不_充__当__句子成分， 同位语从句
_没_有____字面意义。
引导宾语从句的 that可以省略
1 _W__h_a_the had hoped at last came true. 2 China is no longer _w_h_a_t_ it used to be. 3 I’m sorry for _w_h_a_t_ I said. 4 That’s _w_h_a_t_ I want to know. 5 It was _w_h_a_t_ he meant rather than w__h_a_t he said. 6 There’s something in _w_h_a_t_ he says. 7 200 years ago, they came to _w__h_a_t we call “America” now.
that 、what 在引导从句时的用法辨析
what 、that在引导从句时的用法辨析甘肃省永登二中730302 冯海秦请看下面一组例句：①------they have in common is their way of speaking .②------they have nothing in common surprises us.第一空填what, 是what引导的主语从句。
第二空填that, 是that引导的主语从句。
我们来分析what、that 在引导各类从句时的区别。
一．名词性从句主语从句①What makes me forget my sorrow is music.主语谓语宾语②That he likes music best is what we don’t know.↗→→→→→↘宾语从句③I don’t know what he will do next.谓语④I don’t know（that ）he has already broken the record.↗→→→→→→→↘表语从句⑤what it used to be.系动词⑥The good news is that he has found his lost child.↗→→→→→→→→→↘同位语从句⑦The question what the monster will do next is beyond our imagination. 谓语⑧There is no possibility that he will attend the meeting.通过对比what、that在名词性从句中的位置及功能，我们得出如下结论：1．what、that 均可引导名词性从句。
（主、宾、表、同位语从句）2．that 在名词性从句中只起连接作用，不充当语法成份。
换句话说，that 引导的从句是完整的陈述事实的句子，不缺主干成份。
what 在名词性从句中不仅起连接作用，还充当语法成份。
高中英语《名词性从句---what与that的用法》优质课教案、教学设计
名词性从句----what 与that 的用法【课标语法项目】1. 名词2. 代词3. 数词4. 介词和介词短语5. 连词6. 形容词（比较级和最高级）7. 副词（比较级和最高级）8. 冠词9. 动词10. 时态11. 被动语态12. 非谓语动词13. 构词法14. 句子种类15. 句子成分16. 简单句的基本句型17. 主谓一致18. 并列复合句19. 主从复合句20. 间接引语21. 省略22. 倒装23. 强调24. 虚拟语气以上各语法项目具体内容参考课标（或考试大纲）附录2 语法项目表一、教学目标确立依据（一）课程标准要求及解读1.课程标准要求语言技能目标说: 七级目标2 能根据熟悉的话题，稍作准备后，有条理地作简短的发言（1）读: 七级目标1 能从一般性文章中获取和处理主要信息。
（2）语言知识目标词汇:七级目标1 理解话语中词汇表达的不同功能、意图和态度等。
（3）学习策略目标调控策略七级目标4 学习中遇到困难时知道如何获得帮助。
（4）资源策略七级目标2 通过图书馆、计算机网络、广播和电视等资源获更广泛的英语信息，扩展所学知识。
（5）态度情感目标七级目标6 在学习中有较强的合作精神，愿意与他人分享各种学习资源。
(6)2.课程标准解读：课标（1）“稍作准备后”是指对即将发言的内容进行短暂的口头的操练。
“有条理地”是指发言内容语言准确，结构合理，层次鲜明。
“发言”指的是脱稿或运用look and speak 的技巧讲话，不可以照课本或演讲稿念。
课标（2）“获取和处理”意味着阅读文本后，能通过阅读技巧归纳出文本要点信息。
课标（3）是指识记文本中相关词汇的词性、意义、用法以及褒贬等并可以准确用到表达中。
课标（4）是指在学习中能够通过小组合作，讨论，及时解决学习中存在的困惑。
课标（5）“获得更广泛的英语信息，扩展所学知识”指能从网上或其他媒体上了解更多的关于从句中的what 与that 的正确运用等。
what和that引导的表语从句的区别从后面跟的从句成分分析,
what和that引导的表语从句的区别从后面跟的从句成分分析,that引导名词性从句只起连接作用,在从句中不作任何成分,无意义,在宾语从句通常省略,但在主语从句、表语从句和同位语从句中均不能省略；what除引导从句外,还在从句中作成分,意为“所……的(东西)”,在含义上等于“名词+that”.在从句练习中,我们经常看到that与what同时出现在选项中,许多同学因为区别不开,造成选错.下面我们谈谈如何解决这个难题.一、引导词what与that在引导名词性从句的用法区别引导主语、宾语或表语从句时,what在从句中要充当句子成分；而that引导主语、宾语、表语和同位语从句时,不作任何成分,只起语法连接作用.试比较：That George W. Bush won the presidency once again was what many people hadn't expected.乔治?布什再次赢得总统大选,这是很多人没有预料到的.It is the same old story of not being grateful for what we have until we lose it.事情往往是这样,失去之物,方知珍惜.二、引导词what与that在引导定语从句的用法区别首先,要记住在定语从句中,跟本不用what连接词.只有that和which.所以大家在做题中,如果是定语从句,就不要再考虑what了.That 在定语从句中,一般可以作从句的主语.宾语和表语.例如：1、（2005北京春季卷）Do you still remember the chicken farm ____ we visited three months ago?where B when C that D what「分析」C 定语从句连词,that做从句visit的宾语.没有what连词.2、He is not the naughty boy that he used to be.他不再是从前那个调皮的男孩了.巩固性练习：从A、B、C、D四个选项中,选出可以填入空白处的最佳选项.1. （2005福建卷） --Is that the small town you often refer to?--Right, just the one _____ you know I used to work for years.A thatB whichC whereD what2. ____ should be done must be done in time.A WhatB AllC AnythingD All what3. A computer is so useful a machine ______ we can use everywhere.A thatB whichC asD what4（2005天津卷）last month, part of Southeast Asia was struck by floods,from _____effects the people are still suffering.A thatB whoseC thoseD what5. （2005湖北卷） Her sister has becomes a lawyer, _____ she wanted to be.A whoB thatC whatD which6. （07安徽）You can only be sure of _____ you have at present； you cannot be sure of something ____ you might get in the future.A that； whatB what；/C which； thatD /；that7. （07陕西） _____ parents say and do has a life-long effect on their children.A ThatB WhichC WhatD as8. （07上海） ____ he referred to in his article was unknown to the general readers.A ThatB WhatC WhetherD Where9. （2006全国卷II）--What did your parents think about your decision?----- They always let me do ____ I think I should.A. when B that C.how D. what10. （2005上海卷）The other day,my brother drove his car down the street at ___ I thought was a dangerous speed.A. as B which C. what D. that1. C 定语从句,one是先行词2. A what引导主语从句,做从句中can的主语.这里what＝all that3. C so……as……连用,属于定语从句的范围.4. B 定语从句,whose从句effects的定语5. D 非限定性定语从句,没有that 和what.6. B 第一空是of的宾语从句,从句中have缺少宾语,因此用what 做连词.第二空something后面是定语从句.7. C 主语从句连词 '父母的所作所为对孩子有终身影响'8. B主语从句连词,从句中refer to缺少宾语9. D 是do的宾语从句10. D 是介词at的宾语从句,at 做was 的主语.I think是插入语,可以忽略.What 和that 都可以引导名词性从句.但他们在句子中的语法功能截然不同.一．在引导名词性从句时,从属连词that一般要注意三个不（three nos）：1．不省略（no ellipsis）当从属连词that引导主语从句、表语从句和同位语从句时,that不省略.Eg. 1) That he was able to come made us happy.(That 引导主语从句不可省略)2)The truth is that I didn’t go there. (that引导表语从句不可省略)3)The news that our team has won is true. (that引导同位语从句不可省略)但在非正式文体中that 引导宾语从句时可以省略,除下列两种情况外：that在宾语从句中不能省略的情况.(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.Eg: 4) He made it quite clear that he preferred to studyEnglish.（that不可以省略）他很明确地说他宁愿学习英语.(2). 由连词and连接的两个由that引导的宾语从句中,则第二个宾语从句前的that不省略.Eg: 5) He told me that he would come and that he would come on time.（第一个That可以省略,但第二个that不可以省略.)他告诉我他将来而且他将准时来.2．不作成分（no component）that 在名词性从句中不作任何句子成分.Eg. 6)Sydney kept his promise that he wouldalways do anything he could for Lucieto make sure of her happiness.（that 在句中引导同位语从句,但在句中不作任何成分）7))That you don’t like him is none of my business. (that在句中引导主语从句,但在句中不作任何成分,也不省略）3．没词义（no meaning）that 在名词性从句中没有汉语意思.Eg. 8)That she is a rich woman is known to us. (that在句中引导主语从句,但在句中没有汉语意义)她是一个很有钱的女子,这一点我们都知道.9）The thought that he might fail in the exam worried him. (that在句中引导同位语从句,但在句中没有汉语意义）他也许会考试失败,这一想法使他很担心.。
That 和what在名词性从句中的用法区别 (高中英语语法精品微课件)
that 和what 在名词性从句中的
用法区别
Have a look
翻译句子，并指出: 名词性从句引导词that的含义? that在从句中充当的成分?
The trouble that he has lost her address troubles him a lot.
译文： 他弄丢了她的地址这件麻烦事使他觉得很为难。
the game. • 3. __T_h_a_t __he wants to go there is
obvious.
• 4. We should pay attention to __w__h_a_t __the teacher is saying.
• 5. I have no idea __w_h_a_t__he did that afternoon.
引导词that在从句中无含义
引导词that不充当任何成分
Have a look
翻译句子，并指出: 名词性从句引导词what的含义? what在从句中充当的成分?
They've done what they can to help her.
译文： 他们已经尽力帮助了她。
引导词what在从句中有含义，意为“……的事情” ＝ (all) the things that
引导usion
• 1. that (1)本身无意义 (2)在所引导的名词性从句中不作成分
• 2. what (1)本身有意义，what = something + that I don't understand what you said just now.
• 6. I have no doubt __t_h_a_t __he will come.
that what引导名词性从句区别
prepared for their future. 5. 问题在于人们怎样才能找到一种有效的方式来储藏太 阳热。
The question is how the people can find an effective way
that what引导名词性从句区别
that和what引导名词性从句的区别： tห้องสมุดไป่ตู้at：引导名词性从句本身无意义，只起连接 作用，在从句中不做成分，但不能省略（宾语 从句除外）。
What：引导名词性从句，在从句中做主语，宾 语和表语，不能省略。what,常译为“什么” “什么样子”或“所……的人或事
what = the n/pron + that/ which ， 可转换为定 语从句 e.g. What you said is true.
= The thing that you said is true .
1 What seems right to me seems wrong to him.
8 He is what is known as a hacker.
whatever/whoever 无论什么/谁 whatever = anything that whoever= anyone who e.g. 1). Whoever comes first wins the prize. 2). People/Those who come first win the prize. 3). It is unwise to give a kid whatever he wants. 4). Who broke the glass is not important. 5). Whoever broke the glass should be punished.
What和that-在名词性从句中的用法区别
What和that 在从句中的用法区别一.W hat和that 都可以引导名词性从句。
(主语、宾语、表语、同位语从句)That: 1不省略(宾语从句除外) 2．不作成分 3.没词义What: 1．有词义2．作成分(从句中充当成分，常常作主语、宾语和表语)3不可省1) That you don’t like him is none of my business.2) I’m writing to tell you (that) Li Hua is going to your city for a conference .3) The thought that he might fail in the exam worried him.(=The thought worried him that he might fail in the exam)4) What some scientists have found is that their long-term use can sometimes harm boththe land and people’s health.5) What keeps them from doing so is the fact that chemical farming severs the highdemand for food around the world.6）Li Ping is what is generally called a “living Lei Feng”7）Sydney kept his promise that he would always do what he could for Lucia to make sure of her happiness.8）After what seemed to be ten years , he returned to his hometown.9)No one really knows when the first people arrived in what we know as California.二．that可以引导定语从句，有词义（指人或物），在定语从句中要充当成分，通常作定语从句中的主语、宾语。
名词性从句讲课讲稿
5.在一些表示“建议，劝说，命令”的名 词后的表语从句中，谓语动词用虚拟语气。
My suggestion is that we （should）start early tomorrow.
经典试题
1.We cannot figure out_C___ quite a number of insects, birds, and animals are dying out. A. that B. as C. why D. when 2.A modern city has been set up in__A__ was a wasteland ten years ago. A. what B. which C. that D. where 3.Parents are taught to understand_B_important education is to their children’s future. A. that B. how C. such D. so 4.You are saying that everyone should be equal, and this is __B__ I disagree. A. why B. where C. what D. how
14.These wild flowers are so special I
would do_A__ I can to save them.
A.
whatever B. that C. which D. whichever
15.The old woman was shocked by _D__
had happened to her daughter.
what和that引导名词性从句的用法与区别讲义- 高三英语一轮复习
what引导名词性从句的五种用法一、用法归纳1. 表示“……的东西或事情”They’ve done what they can to help her. 他们已经尽力帮助了她。
He saves what he earns. 他赚多少，积蓄多少。
What Mary is is the secretary. 玛丽的职务是秘书。
2.表示“……的人或的样子”He is no longer what he was. 他已经不是以前的那个样子。
He is what is generally called a traitor. 他就是人们通常所说的叛徒。
Who is it that has made Fred what he is now? 是谁把弗雷德培养成现在这个样子的？3. 表示“……的数量或数目”Our income is now double what it was ten years ago. 我们现在的收入是10年前的两倍。
The number of the students in our school is ten times what it was before liberation.现在我校学生的数量是解放前的10倍。
4. 表示“……的时间”After what seemed like hours he came out with a bitter smile.似乎过了几个小时他才苦笑着出来。
The young girl was too frightened to speak,standing there for what seemed like hours.小女孩吓得不敢说话，在那儿站了几个小时。
5. 表示“……的地方”This is what they call Salt Lake City. 这就是他们称为盐湖城的地方。
In1492,Columbus reached what is now called America.1492年哥伦布到达了现在所称的美洲大陆。
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What 和that 在名词性从句中的用法区别What 和that 都可以引导名词性从句。
一．在引导名词性从句时，从属连词that一般要注意三个不（three nos）：1．不省略（no ellipsis）当从属连词that引导主语从句、表语从句和同位语从句时，that不省略。
Eg. 1) That he was able to come made us happy.(That 引导主语从句不可省略)2)The truth is that I didn’t go there. (that引导表语从句不可省略)3)The news that our team has won is true. (that引导同位语从句不可省略)但在非正式文体中that 引导宾语从句时可以省略，除下列两种情况外：that在宾语从句中不能省略的情况.(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.Eg: 4) He made it quite clear that he preferred to study English.（that不可以省略）他很明确地说他宁愿学习英语。
(2). 由连词and连接的两个由that引导的宾语从句中, 则第二个宾语从句前的that不省略。
Eg: 5) He told me that he would come and that he would come on time.（第一个That可以省略，但第二个that不可以省略。
)他告诉我他将来而且他将准时来。
2．不作成分（no component）that 在名词性从句中不作任何句子成分。
Eg. 6)Sydney kept his promise that he would always do anything he could for Lucie to make sure of her happiness.（that在句中引导同位语从句，但在句中不作任何成分）7))That you don’t like him is none of my business. (that在句中引导主语从句，但在句中不作任何成分，也不省略）3．没词义（no meaning）that 在名词性从句中没有汉语意思。
Eg. 8)That she is a rich woman is known to us. (that在句中引导主语从句，但在句中没有汉语意义) 她是一个很有钱的女子，这一点我们都知道。
9）The thought that he might fail in the exam worried him. (that在句中引导同位语从句，但在句中没有汉语意义）他也许会考试失败，这一想法使他很担心。
二．在引导名词性从句时，What一般要注意一个不（one no）,一个有（meaning）,一个作（component）：1．不省略what 引导名词性从句时，what 在句中不省略。
这一用法与that 用法不尽相同。
eg. 10) What I had for breakfast today was rice with egg.(what 在句中引导主语从句，what 不省略)11)----I think it’s going to be a big problem.----Yes , it could be .----I wonder what we can do about. (what在句中引导宾语从句，但在句中不省略）2．有词义what 引导名词性从句时，有词义。
一般是“----的东西/事情/话等”这一用法与that 用法不一样eg. 1) This is what she wanted to show us. (what在句中引导表语从句，在句中有词义，意思是“----的东西、事情）这是她想让我们看的东西。
12）What the teacher said had a good effect on the children. (what在句中引导主语从句，在句中有词义，意思是“----的东西、事情）老师所说的话对孩子们有很好的作用。
3．作成分what 在引导名词性从句时，在从句中充当成分。
这一用法与that 用法不一样。
Eg. 13)It does n’t matter what he said.( it 是形式主语，what 在句中引导主语从句。
What 在主语从句中作said 的宾语。
)14）It was true ______Alice did surprised her mother.A. that whatB. what thatC. that thatD. all what评析：这一题正确答案是A。
it在句中是形式主语，that引导的是主语从句that Alice did surprised her mother.，在这个主语从句当中，what 又引导了主语从句what Alice did，what在从句中作did 的宾语。
三．要特别提醒同学们的两点：1. What所引导的从句可以在介词后作宾语，而that从句一般不可以。
Eg：15）After months of voyage ,Columbus arrived in _____later proved to be a new continent.A. whereB. whichC. whatD. that评析：答案是C。
因为在介词in 后面，应该用what引导的宾语从句，what在宾语从句中作主语。
而that不可以这样用。
16) On stepping into his room, he was astonished to find the floor covered with _____lookedlike tiny insects.A. thatB. somethingC. whatD. anything评析：答案是C。
因为在介词with 后面，应该用what引导的宾语从句，what在宾语从句中作主语。
而that不可以这样用。
2.that可以引导定语从句，而且是定语从句引导词中的顶梁柱，它在定语从句中要充当成分，通常作定语从句中的主语、宾语。
同时that也可以引导名词性从句，在名词性从句中that 不充当成分。
但What不可以引导定语从句。
它只可以引导名词性从句,在句中相当于what =all that ,what 在名词性从句中充当成分，常常作主语、宾语和表语。
Eg: 17).All _____I want to know is what he meant .A.thatB. whichC. whatD. whatever评析：答案是A.本题是that引导的定语从句。
而what不可以引导定语从句。
What=allthat .又因为先行词是all ，故其后不可以接which 引导的定语从句。
而.Whatever=anything that /no matter what 从意义和语法都不符合。
所以只能选A,that.18) ______impressed me most was ______such a little boy could play the violin so well.A. That ; whatB. What ; thatC. That ; thatD. What ; what评析：答案是B.第一空是what 引导的主语从句，并在主语从句中作主语。
第二空是that 引导的表语从句，that在表语从句中不省略，不作成分，也没词义。
要真正掌握What 和that 在名词性从句中的用法，还得多多操练,熟能生巧（Practice makes perferct）。
练习：一．改错题：1.What we all like him is certain.2.He left is certain.３．I wished that we could go to Beijing this summer and we could buy some books on our way back4.His delay is due to the fact the car went wrong halfway.5.The idea which the world may be destroyed by nuclear weapons came to him.6.The news our team has won is true.7.He said that he had made a big mistake and he felt very sorry for it.8.The reason he did not come is he was ill.9.His delay is due to the fact the car went wrong halfway.10 .When you answer questions in a job interview ,please remember the golden rule: Always give the monkey exactly that he wants.Keys: 1.(what→That) 2.(he 前加that) 3.（在and 后加that）4.（在the car前加that）5.(which→that) 6.(在news 后加that ) 7.(第一个that可以省略，但第二个that不可以省略。
所以要在and 后加that) 8.（在is 后加that)）9.（在fact后加that）10. (将that 改what) 二）高考题：11．[92] It worried her a bit ______ her hair was turned grey.A. whileB. thatC. ifD. for12．[93] _____ he said at the meeting astonished everybody present.A. WhatB. ThatC. The factD. The matter13．[96] _____ we can’t get seems better than _____ we have.A. What / whatB. What / thatC. That / thatD. That / what14．[98] _____ caused the accident is still a complete mystery.A. WhatB. ThatC. HowD. Where15．[01] A co mputer can only do _____ you’ve instructed it to do.A. howB. afterC. whatD. whenKeys:11-15 BAAAC三）选择题：16．Air to us is ______water to fish.A. whatB. thatC. /D. like17．China is not _____ it used to be .A. thatB. whatC. whichD. /18. After ______seemed to be ten years later, he returned to his hometown.A. whatB. thatC. /D. which19.There are signs ______restaurants are becoming more popular with families.A. thatB. whichC. in whichD. whose20.It is pretty well understood ______controls the flow of carbon dioxide in and out the atmosphere today.A. thatB. when C . what D. how21.______fashion differs from country to country may reflect the culture differences from one aspect.A. WhatB. ThatC. ThisD. Which22.----What made her parents so angry ?----______ she had failed in the exam.A. AsB. BecauseC. SinceD. Thatrmation has been put forward ______more middle school graduates will be admitted into universities.A. whileB. thatC. whenD. as24.----Are you still thinking about yesterday’s game ?----Oh, that’s ______.A. what makes me feel excitedB. whatever I feel excited aboutC. how I feel about itD. when I feel excited25.There is a new problem involved in the popularity of private cars _______ road conditionsneed _______.A. that , to be improvedB. which , to be improvedC. where, improvingD. when , improving26.Word has come ______some foreign guests will come to our school.A. thatB. whetherC. whichD. what27.No one can be sure ______in a million years.A. what man will look likeB. what will man look likeC. what look will like manD. what look will man like.28.____puzzled the police especially was ______the murderer died .A. The thing ; thatB. That ; howC. What ; howD. Which ; how29.Sometimes we are asked _____ the likely result of an action will be .A. that we thinkB. what we thinkC. what do you thinkD. if we think30. The fire destroyed all _____ was in the building .A. whatB. whichC. thatD. how31.It’s certain _____he will come to our rescue.A. whetherB. whatC. thatD. if32. I’m sure ______things will get better and ______we will get out of the trouble soon.A. that ; whichB. /;/C. /; thatD. that ; /33.He was so pleased with all ______we had done for him ______he wrote us a letter to praise usfor it . A. what ; what B. what ; that C. that ; what D. that ; that34.Was it in his office ______the manager made a promise ______he would give me promotion?A. when ; thatB. that ; thatC. when ; whichD. on which ; what35. There is no doubt _____ China will catch up with the developed countries.A. whichB. thatC. whetherD. what36._____he did well in the examination made him happy.A. WhatB. WhichC. ThatD. When37. There is a popular belief among the students _____one cannot hope to achieve success withouthard work. A. which B. that C. / D. what38.Who discovered the truth ______ the earth goes round the sun ?A. whichB. whatC. whenD. that39. By success I don’t mean ______usually thought of when that word is used.A. what isB. that weC. as youD. all is40. Although Anne is happy with her success she wonders ______will happen to her private life.A. thisB. itC. whatD. thatKeys:16-20 ABAAC 21-25 BDBAA 26-30 AACBC31-35CCDBB 36-40 CBDAC。