since的英语考点用法

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since的英语考点用法
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since的英语考点用法
since的英语考点用法

since的英语考点用法
当介词:
since 表示明确的日期或时间,时态常用完成时:
He’s worked here since 1980. 自从1980年他就在此工作.
She’s been sitting in the waiting room since two-thirty. 自两点半她就坐在等候室了.
当连词
引导时间状语从句
Since she married me, we had been happy. 自从她嫁给我以来,我们一直很幸福.
since引导原因状语从句:
•Since you don’t want to go, we won’t force you to. 既然你不愿意去,我们也不勉强你.
Since you are leaving tomorrow, we can eat dinner together tonight.
既然你明天要走,我们今晚一起吃晚饭吧.