2.5 冠词位置
 
 1) 不定冠词位置
 不定冠词常位于名词或名词修饰语前。注意: 
 a. 位于下列形容词之后: such,what,many,half,
   I have never seen such an animal.
   Many a man is fit for the job.

 b. 当名词前的形容词被副词as, so, too, how, however, enough修饰时,不定冠词应放在形容词之后:
   It is as pleasant a day as I have ever spent.
   So short a time.
   Too long a distance.

 c. quite,rather与单数名词连用,冠词放在其后。
但当rather,quite 前仍有形容词,不定冠词放其前后均可。如:quite a lot

 d. 在as,though 引导的让步状语从句中,当标语为形容词修饰的名词时,不定冠词放形容词后:
    Brave a man though he is,he trembles at the sight of snakes. 他尽管勇敢,可见到蛇还是发抖。
   当名词被比较级形容词修饰时,不定冠词通常置于比较级形容词之后。

2) 定冠词位置
  定冠词通常位于名词或名词修饰语前,但放在all, both,double,half,twice,three times等词之后,名词之前。
  All the students in the class went out. 班里的所有学生都出去了。