be going to和be going to do的区别?e.g They'er going to a police station.be going是现在进行时.可为啥要加to呢?be going to do不是将要进行时吗?都很好！我该如何抉择？
问题描述：
be going to和be going to do的区别?
e.g They'er going to a police station.
be going是现在进行时.可为啥要加to呢?be going to do不是将要进行时吗?
都很好！我该如何抉择？
答
记住，不可断章取义~！
be going to do 是固定的，表示打算做某事
而你说的be going to + STH 没有这种搭配， to 是个方位介词，表示要去的地方时用to
答
都属于表示将来时的结构。
be going to+ 动词原形
表示说话者明确的打算、安排、计划
I am going to buy a dictionary this afternoon.
我今天下午要去买本字典。
表示说话者根据某种迹象判断，确信会发生的事。
I think it is going to rain.
我看要下雨了。
你这句话：They'er going to a police station.
属于用进行时态表将来
表示位移的词，用现在进行时表示按计划即将发生的动作。
如：They're leaving for Beijing for Saturday.
We're going to the farm next week.
答
go是不及物动词,后面若跟名词,就必须要加介词.
Eg:We are going through the tunnel(隧道).
I am going on a trip.
be going to do是"going-to-future",将来时的形势.