为什么及物动词会和介词连用?

题目

为什么及物动词会和介词连用?
attempt和absorb都是及物动词,vt.
为什么会和介词连用,如下：
1、IBM researchers are attempting to warm up human-computer relationships by working on getting computers recognize human gestures and emotions.
2、be absorbed in sth.
为什么会有to和in?

答案

1,attempt 后是to是不定时符号,不是介词
同attempt to do sth
2,主动(absorb sth) in another th,前边括号里就是你说的及物,因为后边要接another th,故有IN