long before和before long區(qū)別 有什么不同

long before和before long區(qū)別：before long 和long before 是意思完全不相同的兩個(gè)詞組。before long是介詞短語，意為“不久以后”、“不久”。long before：它單獨(dú)使用時(shí)是副詞短語，表示“很久以前”。

long before和before long區(qū)別

1.含義不同

long before意為“在很久之前，很久以前”

before long = soon意為“不久之后”

例句1：Long before I knew better.

很久以前我就知道了。

例句2：Before long, Zoe is ready to roll!

不久之后，Zoe就準(zhǔn)備好了！

2.用法不同

long before體現(xiàn)過去時(shí)態(tài)，常用于過去時(shí)或過去完成時(shí)。

before long用作時(shí)間狀語，常與將來時(shí)、過去時(shí)態(tài)連用。

例句1：She had left long before.她老早就離開了。（過去完成時(shí)）

例句2：I'll be back before long.不久我就回來。（一般將來時(shí)）

例句3：Before long he got married.不久他就結(jié)婚了。（一般過去時(shí)）

long before和before long造句

long before

1、It wasn’t long before everyone latched onto what was happening.

很快人人都明白了所發(fā)生的事情。

2、"The jackal walked this land long before the farmers arrived," I noted.

“胡狼早在這些農(nóng)場主人前，就已經(jīng)行走在這片土地上了。”我說。

3、It will be long before we meet again.

要隔很久的時(shí)間我們才能再見面。

before long

1、Before long he died, never suspecting that his nymph was one other than his own image in the water.

他從來不曾想過那水中美麗的容顏會是自己的倒影。

2、Before long Mr Paul was performing with the most elegant bands on radio and in posh nightclubs.

不久之后，保羅先生與一些最流行的樂隊(duì)在電臺以及豪華夜總會聯(lián)合表演。

3、Well, we'll talk before long about cryptography.

好，我們等下講講密碼學(xué)。