可數(shù)名詞有復(fù)數(shù)形式，而不可數(shù)名詞一般沒有復(fù)數(shù)形式。
1.2. 可數(shù)名詞前可以直接用不定冠詞修飾，而不可數(shù)名詞前不可以直接用不定冠詞修飾。3. 可數(shù)名詞可以在前面直接加數(shù)詞表示數(shù)量，而不可數(shù)名詞不能直接在前面用數(shù)詞表示數(shù)量，若要表示數(shù)量需要用a piece of之類的結(jié)構(gòu)。4. 可數(shù)名詞前可用 each, either, neither, another, these, those, both, (a) few, several, many, a great / good many, a large number of, scores of, dozens of等修飾，但不可數(shù)名詞前不可用這些修飾語；不可數(shù)名詞前可用(a) little, much, a bit of, a great deal of, a large amount of等修飾，但可數(shù)名前不能用這些詞修飾；不過，可數(shù)名詞和不可數(shù)名詞前均可用some, any, half, most, all, a lot of, lots of, plenty of, a large quantity of, quantities of等修飾。

【實例分析】1. He gained his ________ by ________ of famous writers. (全國卷)
A. wealth; work?????????????????????????? B. wealths; works
C. wealths; work???????????????????????? D. wealth; works

【分析】答案選D。wealth是不可數(shù)名詞，沒有復(fù)數(shù)形式，排除B和C；雖然work作“工作”解是不可數(shù)名詞，但指一個作家的全部“作品、著作”解時通常用復(fù)數(shù)形式。

2. I need ________ cloth, for I’m hoping to make ________ clothes. (上海卷)
A. a lot of; many??????????????????????? B. much; much
C. many; many????????????????????????? D. many; a lot
【分析】答案選 A。cloth作“布(料)”解是不可數(shù)名詞，不可數(shù)名詞不能用料many修飾，排除C和D；clothes是只有復(fù)數(shù)形式的可數(shù)名詞，不能用much修飾，排除B。