as as 的用法
中间接形容词或副词原级,在否定句中第一个as可为so;若涉及数量或程度可用as much+不可数名词+as和as many+可数名词复数+as;该结构修饰语可用almost、nothing like等修饰,修饰语须置于第一个as前等。
(1)基本用法
该结构的基本意思是“与……一样”,其中接形容词或副词的原级,在否定句中,第一个as也可换成so。如:
He doesn't study as[so]hard as his brother.他学习不如他弟弟努力。
(2)涉及数量或程度的用法
若涉及数量或程度,可用“as much+不可数名词+as”和“as many+可数名词复数+as”。如:
He doesn’t pay as much tax as we do/as us.他没我们交的税款多。
There are not as many restaurants as there were.现在餐馆没有过去多了。
(3)有关词序的一点说明
其间接形容词时,有时该形容词还可修饰另一名词,但这个名词应带有不定冠词(注意词序)。如:
I have as good a voice as you.我的声音和你一样好。
(4)该结构的修饰语
根据情况可用(not)nearly,almost,just,nothing like,exactly,not quite,half,one-ten,twice,three times,30 per cent等修饰,并且这些修饰语必须置于第一个as之前,而不能置于其后。如:
This room is twice as large as that one.这个房间是那个房间的两个大。
You’re not half as clever us you think you are.你远不是自己想像的那么聪明。
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。
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