| 释义 |
*a /ə; ə; strong 强读 e; eɪ/ also 又作 an (before a vowel sound 用于母音前)
determiner
1 used before a noun to show that you are talking about a general type of thing, not a specific thing 〔用于名词前泛指一类事物，而非特指〕:
Do you have a car? 你有汽车吗？
Her boyfriend is an artist. 她的男朋友是位艺术家。
→ compare 比较 THE
2 one 一（个）:
a thousand pounds 一千英镑
a dozen eggs 一打鸡蛋
3 used in some phrases that say how much of something there is 〔用于某些表示数量的片语中〕:
a few weeks from now 从现在算起的几个星期
a lot of people 许多人
4 every or each 每一:
A square has 4 sides. 正方形有四条边。
once a week/$100 a day etc (=one time each week, $100 each day etc) 每周一次/每天 100 元等: He gets paid $100,000 a year. 他一年可赚十万元。
5 used before two nouns that are frequently mentioned together 〔用于常被一起提及的两个名词前〕:
a knife and fork 一副刀叉
6 used before some singular nouns that are actions 〔用于某些表示动作的单数名词前〕:
Have a look at this. 看看这个。
USAGE NOTE 用法说明: a or 或 an
You use an before a word that starts with a vowel sound. 在以母音开头的单词前用 an:
an apple 一个苹果
an hour 一小时
an MBA 一名工商管理学硕士。
Use a for words that do not begin with a vowel sound. 在不以母音开头的单词前用 a:
a house 一幢房子
a useful tool 一件有用的工具
a CD player 一台雷射唱片机。
Note that you make this choice according to what the words sound like, not whether the first letter actually is a vowel or not. For example although the letter 'h' in 'hour' is not a vowel, an is used because it is pronounced like a vowel in this word. 注意选择应根据单词发音，而非首字母是否母音。例如虽然 hour 中的字母 h 不是母音，但因为它在单词中发音是母音所以用 an。 |