is going to表示打算做某事或有征兆发生某事,其实注意到is going to是一个进行的形式,可以理解为这个动作现在正在“酝酿”(这只是一个理解不要当规则记),例如:
1. I am going to sell my old house.
2. I am going to go to court to get my right.
3. It’s going to rain soon.
4. The boy is going to fall off the parallel bars(双杠).
第一道题需要有具体语境才能回答,第二道题用be going to,不用will。