作业帮 > 英语 > 作业

I have known her ___ since she was a freshman.

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/22 11:09:59
I have known her ___ since she was a freshman.
A.before B.ever C.almost D.always
B
ever since [副/介词词组]
从……起一直到现在;此后一直;从那时到现在
He went to Beijing in 1980 and has lived there ever since.
他1980年去了北京,此后一直住在那里.
I've been here ever since yesterday.我自昨天到现在一直在这儿.
【典型考题】 I have not seen him ______ he left.
A.ever since B.after
C.before D.until
答案A.句意:自他离开后,我一直没见过他.如果用after,before或until时,表达一个具体的时间点,主句都不用现在完成时,只有 ever since要求主句用现在完成时,表示从他离开到现在这段时间里的情况.
【记忆技巧】在ever since里,ever起加强语气的作用,它本身没有什么词义,since表示从……开始直到现在,它可表示一个时间段,例如:ever since last night自昨晚以来一直到现在.ever since要求其主句里用到现在或过去完成时,并用延续性动作或瞬间动词否定式.