不是 It is +一段时间+since的结构吗？这里为什么填before？而不是since?

Question

不是 It is +一段时间+since的结构吗？这里为什么填before？而不是since?It was quite some time( before) the president managed to save his firm from near bankruptcy.

Answer 1

It's+ 时间段+before+从句
也是句型，意为：【过了....时间才......】
It was +一段时间 before sb. did
表示某人过了多长时间才做…
如: It was two days before he came back. 他过了两天才回来

It is + 一段时间 since + 瞬间动词
表从...已经有多少时间了
如: It is ten days since I saw him. 从上次我看到他已经10天了
但要注意的是如果since后面是持续动词则表示动作结束的时间
如: It is two months since he smoked. 他不抽烟已经2个月了.

Answer 2

取决于上下文语意，用since是句中所说的事件发生后过去了多少时间，before是在事件发生前经过了多少时间。这句用before的意思是“在董事长成功从濒临破产中拯救他的公司之前经历了很长一段时间”；用since就会变成“在董事长成功从濒临破产中拯救他的公司之后已经过去很长一段时间了”

Answer 3

动作发生的时间不一样。
用 before，时间是在 the president managed to save his firm from near bankruptcy之前。
用since,时间是在 the president managed to save his firm from near bankruptcy.之后。

Answer 4

hallway seemed never-ending. As he sprinte

Answer 5

since 后面跟得是一段时间追问

这个some time不是时间吗？

一段时间