初一英语复习知识点-不定冠词的区别和用法

2020-06-22 17:13:00来源:网络

  1.不定冠词a 和an的用法区别:a 用在单词发辅音开首的单词前,an用在单词发元音开首的单词前。如:

  a book, a desk, a pen, a doctor, a house

  an enemy, an accident, an animal, an egg

  但注意:an hour, a useful tool

  2.泛指某人或某事物

  An old man is sitting on the chair.

  3.表示one 或every,但概念上没有它们那样强烈。当表示one的意思时,一般不用two, three等相对比。如:

  Every elephant has a long nose.

  Take this medicine three times a day.

  4.用于某些固定词组中。

  a few, a bit, a lot of, in a hurry, at a time, all of a sudden, many a, a little, a couple of, as a matter of fact, in a word, have a good time, do sb. a favor, pay a visit to, in a way, have a word with, make a living, take a pride in, take a walk, a great deal of, catch a cold,

  5.用在某些抽象名词前,表示“一种,一类,一场,一阵”等

  She was caught in a heavy rain.

  It was a wonderful tea.

  That is a great disappointment.


本文关键字: 初一英语 初中英语

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