1. from whom在定语从句中是充当状语滴~ 定语从句可还原为： You would like to hear it from whom. 这样from whom的成分就一目了然啦,是状语没错~
2. 定语从句中的关系代词一定要在从句中充当成分么? 答：是滴!关系代词代表的是前面的先行词,属于代词、名词性质的,它一旦出现就肯定会在从句中担当成分,否则他们就成多余的成分,造成错句子啦!通俗点说就是 一家单位雇人,不可能雇个吃闲饭的人 ,雇来的人一定要担当一个职位,能做事才可以~~~~
比如： He is the boy who I introduced to her. who做从句中的宾语.
I love the gift which he bought for me. which做从句中的宾语.
I have a dog that bring me so much. that 做从句中的主语.