冠词(缺失与多余为重点和难点)
(a)
1. a与an的区别 (发音而非字母)
an: herd undergraduate understanding oyster honest
a : unique university unite yawn
2. a与复数名词的混用
an outstanding methods.
3. 不定冠词a的遗漏
(1)固定短语中a的遗漏
a set of, a piece of, a variety of, a series of,
a collection of , a wide range of
a wealth of + 不可数名词(information)
(2)强调可数名词的单数概念
且无其它限定词,必须用不定冠词
也就是说,单数可数名词前必须有限定词