冠詞的學(xué)習(xí)是英語(yǔ)中很重要的一部分，冠詞又分為定冠詞和不定冠詞以及零冠詞。今天，小編為大家準(zhǔn)備了相關(guān)的語(yǔ)法知識(shí)，將要為大家來(lái)講解一下：不定冠詞的概念和用法，一起來(lái)看看吧！

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1、?a / an 用在單數(shù)可數(shù)名詞前面，表示這個(gè)人或事物是泛指的不確定的一個(gè)，相當(dāng)于中文的“一個(gè)”。通常在第一次提到某人或某物時(shí)用a / an

I gave him a book yesterday. ??I am reading an interesting story.

I have got a ticket. ??????????There is a tree in front of my house.

用在不可數(shù)名詞前面意義上也有變化如wood 木頭, a? wood 一片樹(shù)林power威力, a power大國(guó) / beauty 美麗, a beauty美人, a strong wind 一陣強(qiáng)風(fēng)

2、a 用在讀音為輔音開(kāi)頭的名詞之前,? 而 an 用在讀音為元音開(kāi)頭的名詞之前。例如： a university (雖然u 是元音字母，但不讀元音。) ?an hour (雖然h 不是元音，但單詞讀音是元音開(kāi)頭)

3、用其中的任何一個(gè)，代表他們所屬種類(lèi)的特性。?

A horse is useful to mankind. 馬對(duì)人類(lèi)有用。?

A bird can fly. 鳥(niǎo)會(huì)飛。?

A steel worker makes steel. 煉鋼工人煉鋼。?

4、用在事物的度量單位前,? 如時(shí)間、 速度、 價(jià)格等, 表示 "每一個(gè)"。?

We often go to school two times a day. ?

I went to the library once a week at least. ??

5、用于某些特定的詞組。?例如：a few 幾個(gè)， a little 有點(diǎn)，等等。

?She has a few friends in this city.?

There is a little milk in the bottle.?

Only a few students are in the classroom.

當(dāng)有such what many so how too quiet rather very修飾時(shí)

He left in such a hurry that he forgot to close the door.

What an interesting book it is!

Many a man has gone to big cities for work.

She was so nice a girl that she took the blind man to the station.

How nice a film this is!

Quite a good book

Rather a /a rather useful tool

A very interesting story.

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怎么樣，看完了這篇文章，大家是不是對(duì)不定冠詞的概念和用法有了初步的了解了呢？喜歡就趕快收藏起來(lái)吧~