Afterwhatseemedtobealongtime,theoldmanwentoutoftheprofessor'ssittingroom.在这...Afterwhatseemedtobealongtime,theoldmanwentoutoftheprofessor'ssittingroom.在这个句子中After后的部分做after的宾语是如何

Question

After what seemed to be a long time,the old man went out of the professor's sitting room.在这...
After what seemed to be a long time,the old man went out of the professor's sitting room.在这个句子中After后的部分做after的宾语是如何判断得来的?

Answer 1

我们知道,凡是what引导的从句,语法功能都相当于一个名词结构,要么做主语,要么做宾语或者表语；after+名词结构,说明after是介词（因为连词后面是不能跟名词的）,而介词后面的部分,必是其宾语,这个宾语在这里其实就是一个宾语从句.
what seemed a long time 其实就是a long time 这里用After what seemed a long time 只是比After a long time更高级的表达法而已.原句子其实就是：After a long time,the old man went out of the professor's sitting room.