as long as和so long as引导条件状语从句的区别

网络

as long asso long as均可表明“只需”,用以正确引导标准状语从句,二者没有什么差别。如:

I don’t care so [as] long as she lets me be with her son.只需她让我俩孩子在一起,我无所谓。

You can take my car as [so] long as you drive carefully.你能我用的车辆,如果你当心一点儿开。

You may use my dictionary as [so] long as you don’t keep it too long.只需使用时间不过长,你能我用的字典。

可是,当as long as用以本意表明“与……一样长”时,与so long as在使用方法上是有差别的,即as long as可用以肯定句或肯定句,而so long as只用以毫无疑问,不用以肯定句。如:

It took three timesas long asI had expected.这件事情比我意料的多花了二倍的時间。

It didn’t take as [so] long as I expected.花的時间比我意料的短。

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