定语从句中先行词是those用THAT还是which引导

先行词为“those＋表事物的复数名词”时， 关系代词通常只用which而不用that。

如：You should grasp well those skills which may be used in the future work.

最后，记得这个特殊情况吧：当先行词是表示原因或方式的名词时，可以用that引导定语从句，相当于介词+which，that可以省略。

如： She likes the child for the very reason that (=for which) she loves his father. 她喜欢那个孩子因为她爱着孩子的父亲。

He didn't like the way that (=in which) she speaks to his mother. 他不喜欢她对他的母亲那样说话。

Imagine the speed that (=at which) he drives the car. 很难想象，他开车开得那么快。

The reason (that /for which /why) he came here was to ask for our help.他来这里的原因是寻求我们的帮助。

定语从句中先行词是those用THAT还是which引导

1、定语从句中先行词是those，当从句先行词指的是物关系时用that/which都可以，例如:

He admires those that/which looks beautiful.

他喜欢那些看上去很美的东西。

2、如果定语从句中先行词those指的是人，那么只能用who。例如:

He admired those who danced well.

他赞赏那些跳舞好的人。

定语从句中先行词是those用THAT还是which引导

只可用that.下列情况只可用“that”而不可用“which”：

1. 序数词或最高级形容词或叙述此修饰先行词，如first，best2. 先行词是all， little， much， few， anything， nothing， something， none， the one时3. 先行词被any， few， little， all， no 修饰时4. 先行词被the only， the very， the same， the last修饰时5. 先行词既有人又有物时。

6. 当句中已有who时，为避免重复。高中阶段知道这些就可以了。