someone後面接定語從句用who還是that

someone後面接定語從句用who，具體內容如下。

關係從句的句法功能主要是充當定語。在英語中，關係從句通常位於它所修飾的詞（組）之後。被關係從句修飾的詞（組）叫做先行詞（英語：antecedent），引導關係從句的詞稱為關係詞，關係詞指代先行詞並在關係從句中充當一定的成分。例如：

This is the book which interests me.（“which interests me”是關係從句，修飾先行詞“book”，而關係詞“which”指代先行詞“book”並在關係子句中充當主語。這句話可以拆分為兩個句子來理解：“This is the book.”和“The book interests me.”）

後面用that，例如：

1、I just need to tell someone that I love them.我得去告訴別人我愛他們。

2、I think there's someone that wants to see you.我想你會非常想見某人

3、I don't think I could fall for someone that quickly.我想我不會那麼快就喜歡上一個人。

someone是後面引導的從句先行詞不一定只用that，也可用who。

定語從句的先行詞為指人的all， one，ones，someone，anyone，everyone，no one等代詞時，引導詞只能用who。

One who doesn’t work hard will never get happiness.

不努力工作的人，永遠得不到幸福。

Do you know anyone who can mend locks?

你認識會修鎖的人嗎

但是如果定語從句缺主語 that就不能用了 因為that不充當成分 只能用who。

there is someone who loves you.

有愛你的人。

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.

她的父親被企圖搶劫他那間小零售店的人開槍打死了。

擴展資料：

限制性定語從句只能用that的幾種情況

一、當先行詞是anything， everything， nothing (something除外)， few， all， none， little， some等代詞時，或者是由every， any， all， some， no， little， few， much等修飾時。

(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：當先行詞指人時，偶爾也可以用who

二、當先行詞被序數詞修飾。

(1) The first

place that they visited inLondonwas the Big Ben.

三、當先行詞被形容詞最高級或比較級修飾時

(1) This is the best film that I have seen.

四、當先行詞被the very， the only修飾時。

(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.

當先行詞指人時，偶爾也可以用who

(3) Wang Hua is

the only person in our school who will attend the meeting/

五、當先行詞前面有who， which等疑問代詞時。

(1) Who is the man

that is standing there?

(2) Which is the

T-shirt that fits me most?

六、當先行詞既有人，也有動物或者物體時。

(1) Can you remember the scientist and his theory that we have learned?