be going to +动词原形 用来表示按计划或要发生的动作，有“准备；打算”的意思。 动词be（am is are）要随着句中主语人称和数的变化而变化。单数名词用 am is ,复数名词用are. 1.I am going to watch TV。 2.We are going to have a picnic. 3.It is going to rain. 4.Lingling and Daming are going to walk around the lake.