When students are caught cheating ,they will be kicked out o

这里cheating动名词是一个宾语补足语的成分.
有个固定用法,be caught (in) doing sth.
in 可以省略,译为做某事被抓了现行,通常是不太好的行为,e.g：He was caught stealing in the supermarket.他昨晚在超市偷东西被抓到了.