as long as和so long as引导条件状语从句的区别

as

long

as

和

so

long

as

均可表示“只要”，用于引导条件状语从句，两者没什么区别。如：

I

don’t

care

so

[as]

long

as

she

lets

me

be

with

her

son.

只要她让我和她儿子在一起，我不在乎。

You

can

take

my

car

as

[so]

long

as

you

drive

carefully.

你可以用我的汽车，只要你小心点儿开。

You

may

use

my

dictionary

as

[so]

long

as

you

don’t

keep

it

too

long.

只要使用时间不太长，你可以用我的词典。

但是，当

as

long

as

用于本义表示“与……一样长”时，与

so

long

as

在用法上是有区别的，即

as

long

as

可用于肯定句或否定句，而

so

long

as

只用于否定句，不用于肯定句。如：

It

took

three

times

as

long

as

I

had

expected.

这件事比我预料的多花了两倍的时间。

It

didn’t

take

as

[so]

long

as

I

expected.

花的时间比我预料的短。