The professor was quite used to students' being late for the lecture.

Question

The professor was quite used to students' being late for the lecture.中students' 后面为什么还要加个being，能否详细讲解？

Answer 1

The professor was quite used to students' being late for the lecture.中students' 后面为什么还要加个being，能否详细讲解？
因为be used to 中的to是介词，be late是【迟到】的意思，所以是students' being late。
句意是：“教授习惯了学生们上课迟到”。

Answer 2

students' being late for the lecture 是动名词的复合结构作介词to的宾语
等于the fact that students were late for the lecture

那位教授对学生上课迟到已是习以为常

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Answer 3

Student's being late for the lecture 整体作为宾语。宾语要以名词形式出现。 be late本身是动词词组。用其ing形式转化为名词形式。