before long和long before的區別 兩者有何不同

before long和long before的區別：before long 和long before 是意思完全不相同的兩個詞組。before long是介詞短語，意為“不久以后”、“不久”。long before：它單獨使用時是副詞短語，表示“很久以前”。

before long和long before的區別

1.before long與long before意思不同

(1)before long不久以后

例如：Before long he got married.不久他就結婚了。

I’ll be back before long.不久我就回來。

(2)long before很久以前(單獨使用，表示比過去某時早得多的時間)

例如：She had left long before.她老早就離開了。

That had happened long before.那事老早就發生了。

2.before long與long before用法不同

before long 相當于副詞，位于句首或句末。

long before 其中，before可以為連詞，因此可以引導時間狀語從句。

before long造句

1、Before long she had been called upon to undertake another journey.

不久以后，她將被號召做另一次旅行。

2、Before long you will notice the changes in your life, as that which you ask for manifests.

不久以后，你會注意到你生活中的變化，就像你請求所顯現的那樣。

3、We'll be home before long.

我們很快就要到家了。

long before造句

1、We have heard about this new type of machine long before.

關于這類新型機器，我們很久以前就聽說過。

2、The reference book for teaching came out long before.

教學參考書很久以前就出版了。

3、The area was inhabited long before the dawn of recorded history.

早在有歷史記載之前很久這個地區就有人居住了。