They are going to travel tomorrow.
分析:1: 这句话语法是一般将来时,只强调某个动作在将来会发生,而不管具体什么时刻.
2 :be going to是一种句型,它表示将来打算、计划去做或者有意去做的事。
3:这句话是一句肯定式。be going to 在肯定句中的形式在肯定句中be going to 模样是:主语+be(am / is / are) + going to +动词原形+其它。
They 'll go to travel tomorrow.
They'll go travling tomorrow.
They are going to travel tomorrow.