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Before
的用法:
一、
before
用作连词
1
.
bef
ore
用作连词时,意思是“在??之前;还没来得及
??
就”
。例如:
Before she
could move, she heard a great noise, which grew to
a terrible roar.
她还没来得及动弹,就
听
见有很响的声音,接着就成了可怕的隆隆轰鸣声。
Before I could say a word,
she had stormed out of the room.
不等我说一句话,她就冲出了房间。
Don’t count your chickens
before they are hatched.
不要高兴得过早。
2
.
用于
It + be +
时间段
+ before...
p>
句型中,意思是“在??之后才??”
。例如:
It will be
five years before I come back.
我五年后才能回来。
It was not long
before the enemy was driven out of their country.
不久之后,敌人就被赶走了。
如果主句中用否定式,则表示“不多久??就”
。
It won’t be
long before they
understand each other.
他们不久就会互相了解的。
3
.
p>
还有“趁??(还没有)
”之意。例如:
They are
thinking of buying the house before the prices go
up.
他们正在考虑趁房价未涨时把房子买下
来。
Do it
before you forget it.
趁早动手,以免忘了。
二、
before
< br>用作介词
before
用作介词时
,
可以指时间“
earlier than
在??之前”
,也可以指位置“
in front of
p>
在??之前”
。例
如:
There is
nothing that has not been bitter before being
ripe.
凡事在成熟前,都是有苦味的。
Don
’
t put the
cart before the horse.
不要本末倒置。
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