英语讲义(7)不定冠词a/an的用法

考研 Freekaoyan.com/2008-04-06

前此说过了“定冠词的常见用法”,意犹未尽。本文就来谈谈不定冠词(indefinite articles) a/an 的用法。

  不定冠词最基本的用途就是用来表示“一”这概念,如:

  ① A stitch in time saves nine.
   ② Jason is an internationally known scholar.

  此外,a/an 还有下列 6 种用途:

  ㈠常和time、measurement等有关的名词连用,以表示“每—” 的概念,如:

  ③ I teach five days a week.
   ④ This type of vegetables is sold at one dollar a kilo.
   ⑤ My car usually runs sixty kilometres an hour.

  ㈡常和 hundred, thousand, dozen 以及数目及数量连用,如:

  ⑥ That factory turns out at least a hundred tyres a day.
   ⑦ Noel's monthly salary is a thousand dollars.
   ⑧ I have a number of sponsored students.
   ⑨ Mary has a lot of money.

  ㈢在“of / at”后面出现,以表示“同一类”这概念,如:

  ⑩ Birds of a feather flock together.
   11. Please come one at a time.
   12. Things of a kind come together, so do people of a mind.

  ㈣常在“rather, quite, many, half, what, such”等字后面出现,形成固定用法,如:

  13. Tom is rather a fool.
   14. I think Chinese is quite a useful language.
   15. Many a student has asked that question.
   16. The visitor left half an hour ago.
   17. What a fine day it is!
   18. How can you say such a thing?

  ㈤用在“so, as, too, how +形容词”这些结构里,如:

  19. We have not had so hot a day before.
   20. Susan is as clever a girl as Anna.
   21. That is too difficult a book for beginners.
   22. No one knew how serious a problem it was until later.

  ㈥出现在许多惯用语中,如:

  23. Bob always has a bone to pick with others.
   24. Some students turned a deaf ear to the teacher's advice.
   25. All must learn a language with an eye to mastering it.
   26. I hope you will make an effort to attend the meeting punctually.
   27. Jason has an aversion to being idle.
   28. The news of Jack's sudden resignation came as a bolt from the blue.


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