一般现在时,表示日常活动或习惯、现在的动作或情感、公认的事实或真理。
Xiao Ming goes to school on foot every day.
He is a tall boy.
Marx is a great man.
The sun rises in the east.
过去时,表示过去的状态或者动作、习惯或某时或某段时间发生的事情。
He stayed there for two days.
We used to swim every day.
Li Hao joined the army in 2016.
He went to Shanghai ladt week.
She told us an interesting story just now.
刚刚她给我们讲述了一个有趣的故事。