2.5 冠詞位置
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 1) 不定冠詞位置
 不定冠詞常位于名詞或名詞修飾語前。注意: 
 a. 位于下列形容詞之后: such,what,many,half,
   I have never seen such an animal.
   Many a man is fit for the job.

 b. 當名詞前的形容詞被副詞as, so, too, how, however, enough修飾時,不定冠詞應放在形容詞之后:
   It is as pleasant a day as I have ever spent.
   So short a time.
   Too long a distance.

 c. quite,rather與單數(shù)名詞連用,冠詞放在其后。
但當rather,quite 前仍有形容詞,不定冠詞放其前后均可。如:quite a lot

 d. 在as,though 引導的讓步狀語從句中,當標語為形容詞修飾的名詞時,不定冠詞放形容詞后:
    Brave a man though he is,he trembles at the sight of snakes. 他盡管勇敢,可見到蛇還是發(fā)抖。
   當名詞被比較級形容詞修飾時,不定冠詞通常置于比較級形容詞之后。

2) 定冠詞位置
  定冠詞通常位于名詞或名詞修飾語前,但放在all, both,double,half,twice,three times等詞之后,名詞之前。
  All the students in the class went out. 班里的所有學生都出去了。