2 不定冠词与as, so, too, how, however连用时位于形容词后的例子
书上说，当形容词被as, so, too, how, however等修饰时，形容词所修饰的名词必须是单数可数名词，并且修饰名词的不定冠词应放在形容词之后，而不是之前。——这话好拗口，请老师举例说明一下。谢谢！
最佳答案 2017-06-14 10:31
书上说的是对的。举例如下：
1. as+adj.+a+n.
He was not as quick a learner as his brother. 他没他弟弟学得快。
She’s as good an actress as she is a singer. 她当演员和当歌手都一样出色。
2. how+adj.+a+n.
How good a eacher he is! 他是多好的老师啊！
With this, we can determine how high a mountain is 有了这个，我们就可以测量山有多高。
Travelling on however humble a scale is expensive in Scotland. 在苏格兰旅行，不管规格怎么低，也很费钱。
3. so+adj.+a+n.
Is this so unusual a case? 这种情况那么不寻常吗?
It was so warm a day that I could hardly work. 天热得我简直没法工作。
4. too+adj.+a+n.
She is too polite a person to refuse. 她非常客气，不好意思回绝。
Too rich a diet is not good for you. 吃太多油腻的食物对你的身体不好。
5. however+adj.+a+n.
However strong a man he is, he can’t lift such a heavy stone. 不管一个人力气多大，他也举不起这么重的石头。
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其它 3 个回答
As是先行词，限定词通常位于定语形容词之前。但如果名词为单数可数名词，同时定语形容词被as, so, too, how, however所强调，则不定冠词位于形容词之后（被强调的形容词移至限定词as之前）。如果名词是复数或不可数名词，则应改为其它修饰形式。如改用such来强调，或将形容词改为表语结构或后置定语。
He has a very big house. (正) 限定词a位于形容词big之前。
He has such a big house. (正) 限定词such a位于形容词big之前。
He has as big a house (as I do). (正) 形容词被as修饰后，移至限定词a之前。
They have as big houses (as I do). (误) 形容词修饰复数或不可数名词，不能用as强调。
They have houses as big as ours. (正) 后置定语（相当于表语结构）。
They have such big houses (as I do). (正) 限定词such位于形容词big之前。
He is a very clever boy. (正)
He is so clever a boy. (正)
He is such a clever boy. (正)
They are so clever boys. (误) 形容词修饰复数或不可数名词，不能用so强调。
They are so clever. (正)
The boys are so clever. (正)
They are such clever boys. (正)
This is a very difficult problem. (正)
This is too difficult a problem. (正)
This is such a difficult problem. (正)
They are too difficult problems. (误) 形容词修饰复数或不可数名词，不能用too强调。
They are problems too difficult to be solved.
They are too difficult. (正)
The problems are too difficult. (正)
They are such difficult problems. (正)
How clever a boy he is! (正)
What a clever boy he is! (正)
How clever boys they are! (误) 形容词修饰复数或不可数名词，不能用how强调。
How clever the boys are! (正)
How clever they are! (正)
What clever boys they are! (正)
Howver rich a man he is, I will not marry him. (正)
Whatever a rich man he is, I will not marry him. (正)
However rich men they are, we will not marry them. (误) 形容词修饰复数或不可数名词，不能用however强调。
However rich the men are, we will not marry them. (正)
However rich they are, we will not marry them. (正)
Whatever rich men they are, we will not marry them. (正)
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陈老师的解答很好。我再补充一个：
He is that naugty a boy, and so we all dislike him. 他是那样一个淘气的孩子，所以我们都不喜欢他。（说明：本句that用作程度副词，跟so的用法相同。）
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George is as efficient a worker as Jack.（强调名词）
=George is so efficient a worker as Jack.(强调名词）
=George is a worker (who is) as efficient as Jack.（强调形容词）
=George is a worker as efficient as Jack.(强调形容词）
不定冠词用于固定结构quite/half/rather/many/what/such a (an)+名词或so/too/how+形容词+a(an)+名词中，表示程度、数量或感叹等.
A:quite/half/rather/many/what/such a (an)+名词
It takes half an hour to get there. 到那里需要半小时。
He's quite a famous artist. 他是个很有名的艺术家。
Many a man would welcome such an opportunity.
许多人会很高兴有这样一个机会。
What a fool he is! 他多傻啊！
It's too difficult a problem for him.对他来说，这是一个太难的问题。
I have a number of sponsored students.
Mary has a lot of money.
Tom is rather a fool.
I think Chinese is quite a useful language.
Many a student has asked that question.
The visitor left half an hour ago.
What a fine day it is!
How can you say such a thing?
B:so/too/how+形容词+a(an)+名词
We have not had so hot a day before.
Susan is as clever a girl as Anna.
That is too difficult a book for beginners.
No one knew how serious a problem it was until later.
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