The Smiths are going to France for a vacationbe going to do啊 france是n.
问题描述：
The Smiths are going to France for a vacation
be going to do啊 france是n.
答
这里本身是be going to go to somewhere
但因为有所重复，go to可省略，就成be going to somewhere
（我们老师就是这么讲的）
答
go to 结构，去那里，史密斯一家正在去法国度假。
答
转移动词可用进行时表示将来时,此句用go的进行时来代替be going to dogo leave come stay 都是转移动词,这种结构相当于be going to do所以,这句也可改成The Smiths are going to go to France for a vacation 两句是...
答
好郁闷哦,呵呵,其实这里面to后面的France表明的是去的地点,be going to + do/somewhere 的意思是准备去做什么或者准备去哪里.be going to 也可以换成will. 那就能转化成The smiths will go to France for a vacation. 如果你实在不能接受be going to + do 的形式,那你也可以把它还原为:The smiths are going to go to France for a vacation.