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
someone是后面引导的从句先行词不一定只用that，也可用who。
定语从句的先行词为指人的all, one，ones，someone，anyone，everyone，no one等代词时，引导词只能用who。
One who doesn’t work hard will never get happiness.
不努力工作的人，永远得不到幸福。
Do you know anyone who can mend locks?
你认识会修锁的人吗？
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.
有爱你的人。
there is something that you dont know.
有你不知道的事情。
someone
英 [ˈsʌmwʌn] 美 [ˈsʌmwʌn]
pron.某人，重要人物。
Her father was shot by someone trying to rob his small retail store.
她的父亲被企图抢劫他那间小零售店的人开枪打死了。
扩展资料：限制性定语从句只能用that的几种情况
一、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.
注意：当先行词指人时，偶尔也可以用who
二、当先行词被序数词修饰。
(1) The first
place that they visited inLondonwas the Big Ben.
三、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.
四、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/
五、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?
六、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?
参考资料来源：百度翻译-someone
定语从句先行词是不定代词时只用that，不包括人。人的后面可用who
someone后用who
This is not a job for someone who lacks decision.
先行词是不定代词anything, everything, nothing，few, all, none, little, some代词时。
由every, any, all, some, no, little, few, much等修饰时也用that。
someone指人时，后面可以用who。
例：who has a sense of duty won”t do such a thing.
有责任感的人是不会做这种事的。
that的用法
1、that用作指示代词的意思是“那，那个”。可指前面提到的那件事，也可指在空间或时间上较另一事物远的事物或人，还可指要表明的或要提及的事物、想法等。
2、that用作关系代词时，指人或事物，同时又在从句中充当句子成分。that偶尔也可引导非限制性定语从句。
3、that还常用以代替who， whom， which，但that...which中的that用做关系代词的先行词。
4、that用作关系代词时在下列情况下可以省略：
①引导限制性定语从句在从句中用作宾语时。
②用在there be结构前作主语时。
③用作表语时。
④在定语从句与先行词之间有插入语时。
⑤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。
5、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。
6、that还常引导间接引语或形容词后面的从句。
7、that在以it作形式主语的句子中或引导宾语从句、状语从句时常可省略。
8、that也可用于表示愿望或遗憾。
扩展资料
词汇解析
someone
英 ['sʌmwʌn]；美 ['sʌmwʌn]
pron. 有人，某人；重要人物
例：Her father was shot by someone trying to rob his small retail shop.
她父亲被某个试图抢劫他的小零售店的人开枪打中了。
例："Before she came around," she says, "I was somebody in this town."
“她来这之前，”她说，“我在这个镇上是个人物。”
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.
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)
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。
不定代词分指人的和指物的，指人的不定代词比如：anyone，those，someone，等它们作先行词，要用who来引导定语从句，一般不用that，
指物的不定代词比如：Somethin，anything等作先行词时，用that引导定语从句，不用which
可庙加味：[答案] 用which也可以啊,当先行词是something,all,anything 等不定代词或先行词有不定代词修饰时,才只用that不用which来作关系代词的.而你所说的thing一词是个普通名词,并非不定代词,如果前面有不定代词来修饰限定它,那就要选that作关系代词了....
北镇市13975927638： 定语从句先行词被little修饰 - ？
可庙加味： 恩,可以这么说吧,下面是比较详细的说明,1.在不定代词,如:anything,nothing,everything,all,much,few,any,little等作先行词时,只用that,不用which.Finally,the thief handed everything that he had stolen to the police.2.先行词有the only,the ...
北镇市13975927638： 定语从句什么时候只能用that - ？
可庙加味： (1)先行词是不定代词或者先行词被不定代词所修饰时, 关系代词通常只用that, 不用which.例如:① That's all that I know. 我知道的就这些.② Is there anything that you want to buy in town? 你有什么东西要在城里买吗? ③ Nothing that the ...
北镇市13975927638： 定语从句中先行词被不定代词修饰或限定 - ？
可庙加味： 定语从句中,先行词被不定代词修饰或者限定只能用that不能用which
北镇市13975927638： 定语从句当先行词为不定代词时,关系代词只能用that,可我在语法书中看到如果先行词为something也可以用which,并且还有一个例子:there is something ... - ？
可庙加味：[答案] 当先行词为不定代词时,关系代词只能用that,但something是个例外.如果先行词为something,最好用that,没有that时才用which. 换句话说that为最佳,which也不算错.
北镇市13975927638： 什么时候的定语从句只能用that - ？
可庙加味： 定语从句只能用that (1) 如果先行词是all, much, anything, something, nothing, everything, little, none等不定代词,关系代词一般只用that,不用which.例如: All the people that are present burst into tears.Is there anything that I can do ...
北镇市13975927638： 当something为定语从句先行词时,关系词用哪个 - ？
可庙加味： that.不定代词为定语从句先行词时,关系词只用that.但是不定代词指人时就没有什么硬性规定了.
北镇市13975927638： 定语从句先行词是不定代词用什么 - ？
可庙加味： that
北镇市13975927638： 先行词是指物的不定代词,关系代词用that吗?为什么(说明或举例)? - ？
可庙加味： 定语从句中,先行词是指物的不定代词anything,something,nothing,all,little,much,everything等时,关系代词用that.如:1.Say all that you know. 2. Is there anything that I can do for you ? 希望能帮到你.
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可庙加味： 一般情况下的定语从句,当先行词为不定代词例如something,anything,nothing,none,no,little,much,all等时要用that,而不用which.
