since主句中带的动词时延续性还是瞬间性my friend died since last week it's two weeks since my father died 这个为什么是对的?所以根据问题主句的动词要延续性还是瞬间性.

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since主句中带的动词时延续性还是瞬间性my friend died since last week it's two weeks since my father died 这个为什么是对的?所以根据问题主句的动词要延续性还是瞬间性.

since主句中带的动词时延续性还是瞬间性my friend died since last week it's two weeks since my father died 这个为什么是对的?所以根据问题主句的动词要延续性还是瞬间性.
since主句中带的动词时延续性还是瞬间性
my friend died since last week
it's two weeks since my father died 这个为什么是对的?
所以根据问题主句的动词要延续性还是瞬间性.

since主句中带的动词时延续性还是瞬间性my friend died since last week it's two weeks since my father died 这个为什么是对的?所以根据问题主句的动词要延续性还是瞬间性.
这里since是自从…以来的意思
接一段时间 + ago：如 They have lived in that house since two years ago.要求：谓v.用现在完成时,而且须是延续性动词.
接时间状语从句：如 I have loved her since I met her last time./ Lily has stayed at home since she left school.要求：主句的谓v.用现在完成时,而且须是延续性动词；从句的谓v.用一般过去时,而且须是终止性动词

since 自某一刻起，至今 .......

my friend died last week. 上星期死了.不能用since。可以说
A week has passed since my friend died. 从我朋友去世，一周过去了。

since my father died ？ 自从父亲死（那一刻）算起

my friend died since last week(错误)
My friend has been dead since last week.（正确）
由since+过去时间点，作时间状语的句子的时候主句应该用现在完成时。
It's +一段时间+since+过去时间点，是一个固定搭配，表示“自从……到现在有……时间了。”
如果有疑问，欢迎追问，
如果...

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my friend died since last week(错误)
My friend has been dead since last week.（正确）
由since+过去时间点，作时间状语的句子的时候主句应该用现在完成时。
It's +一段时间+since+过去时间点，是一个固定搭配，表示“自从……到现在有……时间了。”
如果有疑问，欢迎追问，
如果有帮助，请记得及时采纳哦，亲……。

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since主句中带的动词时延续性还是瞬间性my friend died since last week it's two weeks since my father died 这个为什么是对的?所以根据问题主句的动词要延续性还是瞬间性. since引导的时间状语从句主句用延续性还是瞬间性动词 过去完成时带since 主句动词是不是一定延续性 有since的主句中,是用延续性动词,还是用瞬间性动词,还是两种都可以?例：The boy has started to play football since he was at the age of three.句中可以用started to play 这种瞬间性的动词吗? 接since的现在完成时后加延续性动词还是瞬间动词还是都可以 since +延续性动词 中 since 的意思? while引导的状语从句中是从句用延续性动词还是主句用延续性动词when呢? 有ever since或since 的句子,主句都必须用延续性动词吗? 关于瞬间动词与延续性动词麻烦大家帮忙把瞬间动词、延续性动词与since for的关系理一下还有他们所用的时态since for可用于过去时吗？ for和since的主句一定用现在完成时对吗?for和since的主句还一定要用延续性动词, 英语中瞬间动词转延续性动词的小结 现在完成时中瞬间动词用什么延续性的动词替换 现在完成进行时的动词是延续性的还是瞬间性的动词? miss是瞬间动词还是延续性动词若是瞬间动词,写出他做延续性动词的形式 bear 延续性动词bear是延续性动词还是瞬间动词?如果是瞬间动词,那么它的完成式是什么? 现在完成时用的是延续性动词还是瞬间性动词?现在完成进行时呢? shout是延续性动词还是瞬间动词 德语中 fahren是可延续的动词还是瞬间性的动词?怎么看动词的延续性?