从句中what和which,that的区别为:意思不同、用法不同、侧重点不同。
一、从句中意思不同
1.what意思:什么
2.which意思:哪一个;哪些
3.that意思:那
二、从句中用法不同
1.what用法:what作关系代词时,其含意是“所…的事(物)”,可用来引导主语从句,表语从句,宾语从句或同位语从句,当引导主语从句,其所指的名词必定是单数,主语是单数时,谓语动词一般是单数,但有时因谓语动词之后有复数名词,谓语动词也可用复数。
2.which用法:which用作关系代词,可引导限制性定语从句或非限制性定语从句。
3.that用法:that用作关系代词时在下列情况下可以省略,引导限制性定语从句在从句中用作宾语时,用在there be结构前作主语时,用作表语时,在定语从句与先行词之间有插入语时,在先行词way, reason, distance, place, office等作方式状语、原因状语或地点状语时。
三、从句中侧重点不同
1.what侧重点:what引导宾语从句时,常置于谓语之后,用作表语时,放在系动词之后,what还可引导让步状语从句,意思是“不管…”,还可接动词不定式短语。
2.which侧重点:引导非限制性定语从句时which可以用整个主句作为其前行词,相当于and that,有时还可引导不定式短语从句。
3.that侧重点:that用作连词时可引导主语从句、宾语从句、表语从句、同位语从句和状语从句。
从句中what和which,that的区别为:含义不同、用法不同、侧重点不同。
一、含义不同
1.what
释义:什么;多么;真;太。
例句:What do you want? 你想要什么?
2.which
释义:哪一个。
例句:
I wanted to know which school it was you went to.
我想知道你上的是哪所学校。
3.that
释义:那个
例句:
In my case I chose that course which I considered right.
至于我呢,就选择了我认为正确的那条路线。
二、用法不同
1.what
用法:是泛指,所指的事物没有范围的限制。
2.which
用法:特指,所指的事物有范围的限制。
3.that
用法:使用广泛,可用作形容词、代词、连词、副词,还可用于固定搭配。
三、侧重点不同
1.what
解析:what可以引导名词性从句,在从句中可做主语、宾语、表语。
2.which
解析:which是关系代词,引导定语从句,在从句中可充当主语、宾语、表语。
3.that
解析:That可以引导名词性从句,状语从句和强调句。
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。
2、引导感叹句
I can't believe what a beautiful girl she is.
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.
(对) I'll never forget the days (which) I spent in the countryside.
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。
例如:
(对)Is this the museum which you visited a few days ago?
(对)Is this the museum where the exhibition was held?
1 关系代词作介词宾语,即 介词+关系代词,指物只能用which
Last night I had a dream in which I became a Nobel Prize winner.
2 非限制定语从句中,指物只能用which,亦可指整个前面的句子.
He reads English every day,which does good to his English study.
只用that
1 先行词为不定代词:one much everything all any ...
2 先行词被形容词最高级所修饰
3 先行词被序数词所修饰
4 先行词由only ,just ,very,right等修饰
5 在以which 开头的特殊疑问举重,避免重复用that.
6 先行词在从句中担任表语,从句的关系词用that
what 一般指代主语