Be going to后面接地点，表示将要去哪里。 例如： I know where the ball is going to land, not because it has landed already, but because I perceive its arc. 我知道球将落在何处，不是因为它曾经落下，而是因为我察觉到了它的弧形运动轨迹。 be going to do表示要干什么，例如： It should state what action is going to occur, but not get into specific details about how that action will be performed. 它应该陈述将要发生什么行为，但是并不陷入关于行为如何被实现的具体细节中。 AXP
