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中考英语知识点：不定冠词的区别和用法 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. (责任编辑：admin) |