Question

since引导的有哪些从句 请列出从句的时态 以及since在句中的意思

我记得since好像还有个固定搭配吧 但是想不起来了 各位亲帮忙想想吧 谢了

Answer 1

一. Since作为介词，后接某一确定的时间点，主句谓语动词是持续性动词，常与现在完成时态、现在完成进行时态或过去完成时态连用。例如：
1、He left the village in 1982 and I haven’t seen him since then. （现在完成时）
1982年他离开这个村子，从那以后我再没见过他。
2、She’s been working in a bank since leaving school. （现在完成进行时）
她中学毕业后就一直在一家银行工作。
3、.He had spoken to her only once since the party. （过去完成时）
自从那次聚会以来，他只跟她说过一次话。

二. Since作为副词，表示从过去以来、以后或到现在的情形或状态，常与现在完成时态连用。例如：
1、He left home two weeks ago and we haven’t heard from him since.
他两周前离开了家，到现在我们一直没有他的消息。
2、He came to Zhenjiang 6 years ago and has lived here (ever) since.
他6年前来到镇江，从此便住在这里。

三. since引导原因状语从句
作为连词，since可引导原因状语从句，表示因为；既然；鉴于，例如：
1、He didn’t come since he was busy.
他因为忙，所以没有来。
2、Since this method doesn’t work, let’s try another.
既然这种方法不行，我们就试用另一种吧

四. Since引导时间状语从句
1．若since引导的状语从句的谓语是终止性动词的过去时，则从句表示的时间是“从动作开始的那一时刻起”。例如：
1、He has studied very hard since he came to our school.
自从他来到我们学校，他学习就非常努力。
2、We have been missing them since they left here
自从他们离开这里，我们就一直很想念他们。

2．若since引导的状语从句的谓语动词是持续性动词或表示状态动词的过去时时，则从句表示的时间是“从动作或状态结束时算起”。例如：
I haven’t heard any noise since I slept.
Sleep 为持续性动词，sleep的动作结束时，即“醒来”时，所以这句应译为“我醒后还未听到任何声音”。

五. Since在特殊句型中的应用
1、句型I：“It is （has been）+时间+since+持续性动词的过去时”，表示“自从……以来到现在已有多久。”例如：
It has been quite some time since I was last in London.
我上次离开伦敦至今颇有一段时间了。
2、句型II：“It was+时间+since+持续性动词的过去完成时”,表示“从……到过去某时间点以来”，例如：
It was three years since we had been here.
那时我们在这已呆了三年。

追问

since 有固定搭配么

追答

没有什么固定搭配，但是如上所说，它有一般用法和特殊句型用法。

Answer 2

总的来说，since引导状语从句，有时间状语从句（大致翻译为“自从……”），原因状语从句（大致翻译为“因为”）；引导的从句时态的话，大多是过去时态，但有时也会用到用持续性动词的现在完成时。

具体来说（网上资源参考：主要针对时间状语从句）：
since引导从句的翻译
一、正面翻译
在一般情况下，since用作连词表示“自从”时，它所引导从句的谓语通常应是非延续性动词。如：
He has grown an inch since I saw him. 我上次见到他以后他已长高了一英寸。
She has had another baby since I saw her last. 从上次我见到她以来，她又生了一个孩子。
We’ve been friends ever since we met at school. 自从我们在学校遇见以来一直是朋友。
He’s been in bed since he broke his leg. 自从他摔伤了腿，他一直躺在床上。
He has worked for us ever since he left school. 他离开学校以后就一直为我们工作。
He hasn’t stopped complaining since he got back from his holidays. 自从他休假回来，就不停地抱怨。

二、反面翻译
但有时也可以是延续性动词或状态动词，不过此时应注意：延续性动词或状态动词所表示的通常是动作或状态的完成或结束 (而不是其开始)。试体会下列句子及其相应的翻译：
I haven’t heard from him since he lived in Beijing. 自从他离开北京以来，我一直未收到他的信 (“住在北京”的结束，即“离开北京”)。
He has never come to see me since I was ill. 我病愈之后他还没来看过我 (“生病”的结束，即“病愈”)。
It has been so long since we were all together. 好久我们没有在一起团聚了。(“在一起”的结束就是“没有在一起”)
注意：
如果要表示从句中的动作或状态延续至今，就应该用持续性动词的现在完成时，而不是用一般过去时。如：
I haven’t seen you since I have been back. 我回来后一直未见到你。
I haven’t had a good meal (ever) since I’ve been here. 我自从来到这里后还没吃过一顿好的。
I haven’t seen you since I have been back. 我回来后就一直没见到你。
He has never been to see me since I have been ill. 我生病以来他从未来看过我。
Nothing has happened here since you’ve been away. 自你离开后，这里没有发生什么事。
I have met him often since I have lived here. 自从我在这里住下之后，我常看见他。
I have learned a lot from him since I have known him. 自从我认识了他，我向他学到许多东西。
This is the first storm since you’ve been here. 自从你来到这里，这才是第一场暴风雨哩。

三、值得注意的特例
1、有个别时候(尤其是用于since I was a child, since we were young之类的表达)，持续性动词或状态动词的一般过去时也可以表示动作或状态持续到现在 (多半有ever修饰)。如：
I’ve known her ever since I was a child. 自孩提时代起我就已经认识她了。
We have known each other since we were children. 我们从小认识。
I have lived here since I was a child. 我从小就在这里住。
She’s been playing tennis since she was eight. 她从八岁起就打网球了。
Tom hasn’t been home since he was a boy. 汤姆从小离家就没回去过。
We have lived in England since I was a child. 从我小时起我们就住在英国。

四、句型“It is ...since...",表示从过去某一点时间，持续到现在的整段时间。如：
It is two years since he left the country .他离开这个国家有两年时间了。
在该句型中，since从句同样存在谓语动词的终止性与延续性的区别。
It is three Months since the Whites were in London .怀特夫妇离开伦敦已有3个月了。试比较:
It is five years since the boy was a Young Pioneer .这个男孩不当少先队员已经五年了。
It is five years since the boy became a Young Pioneer .这个男孩当少先队员已经五年了。
“It is ...since ...",可以转换使用“...ago...”，“for ...”的句子。例如：
I haven't been in the countryside for a year.
也可转换成：A year has passed since I left the countryside.

希望对你有所帮助，学习愉快！

Answer 3

既然 然而