作业帮谁能帮我全面的解释一下since这个词像什么是since前后时态不一样,若是延续性动词则前后相反,瞬间性动词则前后一致,最好有例子
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谁能帮我全面的解释一下since这个词像什么是since前后时态不一样,若是延续性动词则前后相反,瞬间性动词则前后一致,最好有例子
谁能帮我全面的解释一下since这个词
像什么是since前后时态不一样,若是延续性动词则前后相反,瞬间性动词则前后一致,最好有例子
谁能帮我全面的解释一下since这个词像什么是since前后时态不一样,若是延续性动词则前后相反,瞬间性动词则前后一致,最好有例子
Since(基本用法如下)
Ⅰ.Conj.从…以来;…以后:I haven’t seen her since she left.
由于;既然:Since you aren’t interested,I won’t tell you about it.
Ⅱ.prep.从…以来;自从(常和完成时连用):I haven’t heard from her since last year.
Ⅲ.adv.从那时以后;后来(与完成时连用):She moved to London last May and has since gotten a job on a newspaper.
现就你提出的具体问题作出解答,如果没有理解错你应该是问这个句型it is/was +时间段n.+ since(自从...已经多久了)
关于这个句型要注意以下几个方面(时态搭配和辨别v.是延续性v.还是短暂性v.)
1.it is +时间段n.+ since sb.have done(该v.必须为延续性v.,翻译时直译)
或是it is +时间段n.+ since sb.did(如v.为短暂性v.即瞬间性v.翻译时直译,如为延续性v.翻译时反译)
eg.It is 5 years since I have lived here.(live为延续性v.故直译为自从我住在这儿已经5年了.)
It is 5 years since I lived here.（live为延续性v.故反译为我已经5年不住这儿了.）
It is 3 years since I smoked.（smoke为延续性v.故反译为我已经3年不吸烟了.）
It is 3 days since the accident happened.（happen为短暂性v.故直译为自从这场车祸发生已经有3天了.）
It is 10 years since they married.（marry为短暂性v.故直译为自从他们结婚已经有10年了.）
2.it was +时间段n.+ since sb.had done（就实际情况翻译）
He said it was 5 years since they had seen each other.
since 自从...以来：通常与现在完成时连用，且过去分词应该用延续性动词.since后可接一点时间或一般过去时态。
如，He has lived here since 1998。
He has lived here since he was born.
He has been here since 1998.(been here代替come 因为c...
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since 自从...以来：通常与现在完成时连用，且过去分词应该用延续性动词.since后可接一点时间或一般过去时态。
如，He has lived here since 1998。
He has lived here since he was born.
He has been here since 1998.(been here代替come 因为come是结束性动词）
since 既然，因为
Since everyone is here,let's begin.(既然大家都来了，让我们开始吧。
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