be going to +动词原形与will+动词原形用法不清楚

例：我正努力学习，准备参加英语考试。

I am studying hard and I will try for my English exams.

答案：I am studying hard and I am going to try for my English exams.

解析：“be going to” 表示计划、打算要做某事。E.g. He is going to visit his friends. 还表示某种迹象表明会发生某事.e.g. Look at the clouds. It’s going to rain. 而“Will+动词原形 ”指对将来事物的预见、表示意愿、决心。E.g. I will wait for you until you come. 在单纯预测未来时，二者可以互换，但在此题中只能用be going to，而不能用will。