先行词为人时引导词who和that的区别

1.用who不用that的情况：

(1)当先行词为one,ones,anyone,those时。 (2)当先行词为人称代词时。

He who does not reach the Great Wall is not a true man. Those who have any difficulty with pronunciation should practise more.

2. 用that不用who的情况：

(1)当主句已经出现who时。 （2)关系代词在定语从句中作表语时。

Who is the man that spoke to you just now? Mary is no longer the girl that she used to be.