a和an用法順口溜：不定冠詞a和an,單數(shù)可數(shù)名詞前;輔音若在詞首發(fā),詞前只把a(bǔ)來加;元音若在詞首放,詞前an詞不敢忘;不定冠詞相當(dāng)one,但不強(qiáng)調(diào)數(shù)觀念;不定冠詞很關(guān)鍵,四個(gè)所指記心間.(每指、泛指、類指和某指)

不定冠詞a和an的用法順口溜

不定冠詞a和?an,?a后輔音an后元，

泛指一類或一個(gè)，表數(shù)語氣比one弱,

序數(shù)詞前表又再，most前意非凡，?

抽象物質(zhì)動(dòng)變名，化為具體用法靈，

用錯(cuò)a/an被人笑，單名泛指被丟掉，?

指代物代所有連，位置放錯(cuò)更無顏。?

不定冠詞a/an的用法

不定冠詞有兩個(gè)，a 和 an。a用在輔音開頭的單詞前面;an用于以元音開頭的單詞前。如：a book, an apple。具體用法如下：

1)表示“一個(gè)”、“某一個(gè)”、“ 每一”、“再一，又一”、或“同一，相同”等

Eg：

Rome is not built in a day.

A Mr. Smith is waiting for you at the school gate.

He usually works eight hours a day.

You can try it a second time if you fail.

They are of an age./ Birds of a feather flocks together.

2)泛指某一類人或物，意為“任何一個(gè)，任一”

Eg:

A square has four sides.

3)當(dāng)物質(zhì)名詞具體化表示“一(類、陣、份)”等;抽象名詞具體化為“……的人或者事”時(shí)

Eg:

Green tea is a wonderful tea.

We don’t have much rain here, but last night we had a heavy rain.

Reading is a pleasure for me.

The meeting is a great success.

4)表示季節(jié)、月份、日期、三餐的名詞，或表示世上獨(dú)一無二的物體名詞前有形容詞修飾時(shí)

Eg:

We have a every cold winter last year.

This happened on a rain Sunday towards the end of May.

We hope we can see a full moon tonight.

5)源于動(dòng)詞的名詞與take/have 連用時(shí)

Take a look; take a walk; have a break; have a visit to…

6)其他不定冠詞a/an的用法(固定搭配)

All of a sudden; as a matter of fact; as a result; as a rule; as a whole; at a distance; in a way; in a hurry; in a sense; in a word; do sb. a favour; have a good time; have a word with ; go for a walk; make a difference; make a fool of oneself; make a living; pay a visit to ; take an interest in; tell a lie; a good/wise knowledge of; a danger/threat to sb.; come as a surprise/shock; wish sb. a Merry Christmas…