编辑:sx_wanghf
2014-03-18
【摘要】我记得很多英语老师都说过:“英语的学习是没有捷径的,只有多看、多写、多听和多练才能提高”。精品学习网小学频道为此提供了since的四种用法,希望可以作为大家复习的参考!
since的四种用法:
1) since +过去一个时间点 (如具体的年、月、日期、钟点、1980, last month, half past six)。
I have been here since 1989.
2) since +一段时间+ ago
I have been here since five months ago.
3) since +从句
Great changes have taken place since you left.
Considerable time has elapsed since we have been here.
4) It is +一段时间+ since从句
It is two years since I became a postgraduate student.
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标签:小学英语语法
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