2022-09-07 15:47 阅读 24
区别:
1,Since +时间点,具体时间 “自从、、、以来,从、、、以后” 用来说明动作起始时间 例句:I have been in Beijing since 2010.
2,For + 时间段,用来说明动作延续时间长度,因此句中的谓语动词,也应该是延续性动词。 例句: I have been here for 3 days. (对) I have arrived here for 3 days.(误)