Nevertheless,perhaps people should not be spending so much of their time in front of the TV

题目

Nevertheless,perhaps people should not be spending so much of their time in front of the TV
should not be spending,为什么要这么用?为什么不说should not spend

答案

的确可以说shouid not spend但是他们说英语时会比较注重状态上的区别,是持续中的还是停顿状态的.如果适合表示持续中的状态,就会用be doing sth 而不是do sth.在表示未来会发生的事情时也是这样,比如,会偏向用 i'm no...