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冠词 — 不定冠词的用法
作者:frog  文章来源:本站原创  点击数  更新时间:2010-4-4 16:30:06  文章录入:frog  责任编辑:frog

用法
 例词或例句
用于可数名词的单数形式前,指人或事物的某一种类。 This is a book. I'm a League member.
指某人或某物,但不具体说明是何人或何物。有“每一”的含义。 We have three meals a day. [文章来自:考试与评价 http://www.trgroup.com.cn/te/ ^5 -3YTUQ^PbM&a&_R]
We go to school five days a week.
表示“一”这个概念,但数的概念没有one强。 There is a flower in the corner. [文章来自:考试与评价 http://www.trgroup.com.cn/te/ }Qp}kTa%e]D6$hl{]
I have an American friend.
指某类人或事物中的任何一个。 A bicycle has two wheels.
用于某些固定词组中。 a lot(of), a little/bit, a few, a pair of, half an hour,have a good time, a kind of,a number of,give a call, have a talk with, a piece of, make a contribution to
a 用于以辅音音素(包括/w/,/j/)开始的词前,an 用于以元音音素开始的词前。 a useful book, a university, an hour; [文章来自:考试与评价 http://www.trgroup.com.cn/te/ ,` vRO: :Cd3qJ8Y0V]
There is an “f” in the word “four”.
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