一般现在时 1)经常性或习惯性的动作,常与表示频度的时间状语连用
时间状语: every… , sometimes, at… , on Sunday
例如: I leave home for school at 7 every morning
每天早上我七点离开家
2)客观真理,客观存在,科学事实
例如: The earth moves around the sun
地球绕太阳转动
Shanghai lies in the east of China
上海位于中国东部
3)表示格言或警句
例如: Pride goes before a fall
注意:此用法如果出现在宾语从句中,即使主句是过去时,从句谓语也要用一般现在时
例:Columbus proved that the earth is round
哥伦布证实了地球是圆的
4)现在时刻的状态、能力、性格、个性
例如: I don't want so much
我不要那么多
com Ann writes good English but does not speak well
安英语写得不错,讲的可不行
二、一般过去时 1)在确定的过去时间里所发生的动作或存在的状态
例如:时间状语有:yesterday, last week, an hour ago, the other day, in 1982 等
例如: Where did you go just now
刚才你上哪儿去了
2)表示在过去一段时间内,经常性或习惯性的动作
例如: When I was a child, I often played football in the street
Whenever the Browns went during their visit, they were g