定语从句 先行词是不定代词时要用that 吗，someone 怎么后面又用who

定语从句 先行词是不定代词时要用that 吗，someone 怎么后面又用who

难点分析
（一）限制性定语从句只能用that的几种情况
1．当先行词是anything, everything, nothing (something除外), few, all, none, little, some等代词时，或者是由every, any, all, some, no, little, few, much等修饰时
(1) Have you taken
down everything that Mr. Li has said?
(2) There seems to
be nothing that seems impossible for him in the world.
(3) All that can
be done has been done.
(4) There is
little that I can do for you.
注意：当先行词指人时，偶尔也可以用who
(4) Any man
that/.who has a sense of duty won”t do such a thing.
2.当先行词被序数词修饰
(1) The first
place that they visited inLondonwas the Big Ben.
 
 
 
3.当先行词被形容词最高级或比较级修饰时
(1) This is the
best film that I have seen.
4.当先行词被the very, the only修饰时
(1) This is the
very dictionary that I want to buy,
(2) After the fire
in his house, the old car is the only thing that he owned.
当先行词指人时，偶尔也可以用who
(3) Wang Hua is
the only person in our school who will attend the meeting/
5.当先行词前面有who, which等疑问代词时
(1) Who is the man
that is standing there?
(2) Which is the
T-shirt that fits me most?
6.当先行词既有人，也有动物或者物体时
(1) Can you
remember the scientist and his theory that we have learned?
只用which, whom
1. .当先行词有限定性修饰词时
what was the name
of the war in theUSAwhich lasted 5 years?
2. 当先行词是one, ones, anyone,等时用who;
those做先行词时，指人用who, 指物用which
Those who want to
go to the Great Wall sign up here.
He who has never been to the Great Wall is not a true man.

因为已经说了是someone， 肯定是人，就可以用who啊

前提是先行词是物，当先行词是不定代词或被不定代词修饰或既有人又有物，关系词只能用that。

具体看定语从句中缺什么语
someone后 that 和who都可以用
但是
如果定语从句缺主语 that就不能用了 因为that不充当成分 只能用who
there is someone who loves you
there is something that you dont know (that可省略)追答😂好像我错了 定语从句语法好几年没看了

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