what为什么不能引导定语从句,What可以引导定语从句吗?

1、What可以引导定语从句吗?一、what不可以用在定语从句中,that或which引导定语从句 。what在从句中一般引导名词性从句或感叹句
1、引导名词性从句
名词性从句缺少主语,宾语,表语,而缺少的这个词不是指具体的人时,首先考虑what 。
如You can imagine what it would be like driving a car into a brick wall at 30 miles an hour.
你可以想象汽车以每小时30英里的速度撞向一堵砖墙结果会怎样 。
【what为什么不能引导定语从句,What可以引导定语从句吗?】2、引导感叹句
what在从句中充当主语,宾语或表语,意思是“什么”或“所………的” 。
二、定语从句中关系代词用that , which,两者用法上的区别主要为:
1、that可以指人,也可以指物;which只能指物
2、当先行词是不定代词all, something, anything,everything, none, the one等时,只能用that如: Is there anything that I can do for you?
3、先行词前有形容词的最高修饰时,要用that 。如: This is the best film that I have ever seen for years.
4、先行词前有序数词修饰时 , 要用that如: This is the fifth book that I have ever written.
5、先行词前有形容词only, very, few, little等修饰时,要用that如: She was the only person that was invited to the palace.
6、先行词既指人,又指物时,只能用that
判断关系代词与关系副词:
一、用关系代词,还是关系副词完全取决于从句中的谓语动词 。及物动词后面无宾语,就必须要 求用关系代词 。
例如:(错)This is the mountain village where I visited last year.
(错) I will never forget the days when I spent in the countryside.
(对)This is the mountain village (which) I visited last year.
习惯上总把表地点或时间的名词与关系副词 where, when联系在一起 。此两题错在关系词的误用上 。
二、准确判断先行词在定语从句中的成分(主、谓、宾、定、状),也能正确选择出关系代词/关系副词.
先行词在从句中作主、定、宾语时,应选择关系代词;先行词在从句中作状语时,应选 择关系副词 。
(对)Is this the museum which you visited a few days ago?
(对)Is this the museum where the exhibition was held?

what为什么不能引导定语从句,What可以引导定语从句吗?

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2、定语从句中什么时候用what?先行词为不定代词时只能用that,先行词被不定代词修饰时只能用that,当先行词被形容词最高级修饰时只能用that,当先行词被序数词修饰时只能用that.
what 不是关系词,所以它不能引导定语从句 。但值得注意的是:what 有时相当于“名词(先行词)+关系代词” 。关系代词有主语、宾语、定语之分 。一般who做主语或宾语whom作为宾语,whose作为定语(whom,whose不可省略) 。关系代词在从句中作主语,宾语,定语等,关系副词在从句中作地点状语(where)时间状语(when) , 原因状语(why) 。
what 有时相当于“先行词+关系代词”,同时这也告诉,这样用的 what 前不能再有先行词(即what 不能引导定语从句) 。
what为什么不能引导定语从句,What可以引导定语从句吗?

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3、what能否引导定语从句?一、引导类型不同:
what是不引导定语从句的 , which可以 。
二、表示含义不同:
1、what引导名词性从句,可表示两种含义:
(1)它保留了原有的质问单义,即“什么”,如:Do you konw what that is?
(2),它表示“ 。。。东西”,“ 。。。事情” , 相当于the thing which(这里which是引导定语从句),例如:
What(=The thing which) we need is a Chinese-English dictionary.
2、which引导名词性从句时,一般后面跟名词,作名词的定语,表示“哪一个,哪一些” , 有范围中选择的意味 。
Which plan is better is clear now. (Which引导主语从句,作定语)
如上例中which换成what , 则表示的意思由“哪一个计划”,变成了“什么样的计划” 。
3、指代不同
1、Which 指物,在定语从句中做主语或宾语,做宾语时可省略 。
The factory which makes computers is far away from here.
This is the pen (which) he bought yesterday.
2、That 既可以指人也可以指物. 从句中作主语或宾语,宾语可省略 。
The number of people that / who come to visit this city is one million.
Yesterday I received a letter that / which came from Australia.
"what" 可以用作引导定语从句 。
它在这种情况下引导一个对前面一个词或短语进行解释或补充的从句 。以下是一个例子:
I love what you did for me.(我喜欢你为我所做的事情 。)
在这个例子中,"what" 引导了定语从句 "you did for me",进一步解释了 "what" 所代表的事情 。
what为什么不能引导定语从句,What可以引导定语从句吗?

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4、what 为何不能引导定语从句what是个连接代词,只能引导名词从句;而引导定语从句的词必须是关系代词和关系副词 , 
1) What he said is right.
That is what he said.
They are discussing the question what they will do next.
The factory where he workes is very large.
因为what太能干了
正常的定语从句构成中,都必须有先行词和关系词在一起组合才行 比如 the thing that
但是what==the thing that 或the thing which
如果what 进了定语从句的班子,那么就会有一个下岗了,这完全不符合XX社会的要求,你说谁能让它进来?。?哈哈
引导定语从句的词必须是关系代词who,which,that和关系副词when, where,why, 还有一个whose
what为什么不能引导定语从句,What可以引导定语从句吗?

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5、为什么定语从句的关系代词不能用what?what引主语从句或者宾语从句等名词性从句起到一种修补残缺成分句子的作用而定语从句的基本成分比如主语宾语已经完整就不能再用what引导了、希望可以帮到你~

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