as big a dog as that dog这是什么用法

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as big a dog as that dog这是什么用法

as big a dog as that dog这是什么用法
as big a dog as that dog这是什么用法

as big a dog as that dog这是什么用法
它是像那条狗一样大的一条狗.
这是as……as的正常比较用法,特殊之处是,不仅形容词放在中间,连名词也放在二者中间了.这是因为前面在句子开头没有出现这个名词.例如:It is as big a dog as that dog.
句首只出现 it ,没有标明是什么,所以要一个名词来说明它是什么.
请及时采纳,多谢!

as...as....结构
具体用法如下:
as + adj. +a/ an +名词单数 + as....
令:as + adv. + as....
如:He is as smart a boy as his friend.

as ...as 结构中如果中间有可数名词单数其词序为:as+形容词+不定冠词+名词+as
as, so, how, however都有这样的顺序
如:He is so good a teacher that all of us like him.
How good a book it is!