Question

同位语从句中，引导词只能用that吗？如果前面是人，可以用who吗？

Answer 1

同位语从句中，引导词只能用that吗？如果前面是人，可以用who吗？, it能不能引导同位语从句，如果能，引导同位

同位语从句说明的名词大都是抽象名词，进行进一步解释说明，所以前面的同位词一般不会是人。
同位语从句通常由从属连词（that）引导，有时也由从属连词（whether）、连接代词（who,whose,what,which）和连接副词（when,where,how,why）等引导。
The fact that Dolly seemed to develop normally was very encouraging。
We are not investigating the question whether he is trusorthy。
Actually I have no idea who was in the classroom yesterday.

同位语从句,只能用THAT引导?这句话对吗?用其他也可以哇!

如果是老师说的,不要理他,不用死抠语法,会用就可以了.
英语中引导同位语从句的词通有连词 that，whether，连接副词 how,when,where等。（注：if,which 不能引导同位语从句。）如:
I have no idea when he will be back．我不知道他什么时候回来。
He must answer the question whether he agrees to if or not.
他必须回答他是否同意这样一个问题。
另外,where, when, why, how, who, what等在引导同位语从句时，一般只用于I have no idea ...结构中,但有人认为,其实这种类型的同位语从句应该列入宾语从句的范畴，因为I have no idea意思就是I don't know ...
如：I have no idea where I should go.
I have no idea how I can get to the railway station.
所以可能有人会说"同位语从句,只能用THAT引导".

which可以引导同位语从句吗

which不能引导同位语从句。但是 that，whether， what, who, how, when, where 等可以。

需要就可以。
I have no idea which is yours.
亲：祝你学习进步，每天都开心V_V！
望采纳，thx！
Mr Gao

主语从句 表语从句 同位语从句 中的引导词that可以省略吗

一般情况下是不可以省略！在这些名词性从句中，虽然that不充当成分可是却不能省略。
但是存在特殊情况，例如在宾语从句中如果从句中有两个that从句，则后面一个that 是可以省略的。

one可以引导同位语从句吗

可以，比如说：
1 Mary is an 18-year-old girl, one who is so pretty, kind and understanding that everyone would like to make friends with her. (结果状语从句)
2 Mary is an 18-year-old girl, one who is pretty, kind and understanding that everyone would like to make friends with。. (定语从句)

同位语从句中任何引导词都不充当成分吗

n lead anything you like, in any way you like; here the safest lead is a long weak suit, the longer and weaker it is, the less is your partner able to do you a mischief. With a weak partner, strengthening cards are either futile or dangerous: a

that引导同位语从句可以省略吗

that连接从句时从句为一个句意完整的陈述句。that不能省略，没有具体的意思，不充当句子成分，只起连接作用。（注：引导同位语从句的that不能省略）
The idea that you can do this work well without thinking is quite wrong.
你认为不动脑筋就能做好这件工作的想法是完全错误的。（作idea的同位语）
【注意1】在某些名词（如demand,wish,suggestion,resolution等）后面的同位语从句要用虚拟语气
There was a suggestion that Brown should be dropped from the team. 有一项建议是布朗应该离队。
【注意2】引导同位语从句的连词that通常不省略，但在非正式文体中也可以省去。
He gabbed his suitcase and gave the impression he was boarding the Tokyo plane.
他拿起了手提箱，给人的印象是他要登上飞往东京的飞机了。

why 能引导同位语从句吗

一般被认定为定语从句：
The reason why...
why的先行词只有the reason