英语定语从句 in which thatHe wants to have his own way (in which) he can do whatever he likes.•He wants to have his own way (that) he can do whatever he likes.为什么俩句子相等 看起来in which 和that做的成分不同

英语定语从句 in which that
He wants to have his own way (in which) he can do whatever he likes.•He wants to have his own way (that) he can do whatever he likes.为什么俩句子相等 看起来in which 和that做的成分不同

He wants to have his own way (in which) he can do whatever he likes
主句：He wants to have his own way.
从句：he can do whatever he likes in (which = his own way).从句引导词which指代way,in which在从句中作状语,整个从句是修饰way的定语,所以是定语从句.
He wants to have his own way (that) he can do whatever he likes
主句：He wants to have his own way.
从句：he can do whatever he likes.整个从句和his own way等价,that不指代任何先行词（因为that还原不到从句里面去作任何成分）.所以这是同位语从句.

in which 引导的是定语从句，that引导的是同位语从句

He wants to have his own way (in which) he can do（in his own way） whatever he likes.这句是定语从句，in which=我复原的in his own way.起到引导代替做成分的作用。
•He wants to have his own way (that) he can do whatever he likes.这是同位语从句。