英语定冠词和不定冠词的用法

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英语中有两种冠词:定冠词和不定冠词，三种形式:the和a,an。冠词虽小，但用起来很容易出毛病，因此要特别注意。

不定冠词

(1)不定冠词a和an的区别是:a用在以辅音开始的单词前面，an用在以元音开始的单词前面，如:

an island, an owl, an effective method, an old man, a fierce tiger, a university, etc.

注意要以单词发音的第一个音素为准，不要以拼写的第一个字母为依据，这就是为什么像university, unique, unified这些词，其前面用a而不用an的原因所在。

(2)不定冠词一个基本意义就是。ne，因此，很显然，它不能和复数名词一起用。例如:

(误)An ears is an organ for listening.

(正)An ear is an organ for listening.

(3)不定冠词可用在可数名词的单数形式前表示类属，其意义相当于可数名词的单数形式前用定冠词the或可数名词的复数形式前不用冠词表示的类属。因此，以下三个句子意义相同:

A tiger is a wild animal.

The tiger is a wild animal.

Tigers are wild animals.

它们都解释“老虎是一种野生动物”。如果说成Tiger is a wild animal.那就错了。实际上，凡见到可数名词单数形式前没有冠词的，都值得考虑一下，这种情况大多是错的。

(误)From then on, we"ve kept in touch with another through e-mail.

(正)From then on, we"ve kept in touch with another through e-mails.

(4)不可数名词前不可以用不定冠词，这样的名词包括抽象名词、物质名词和一部分集合名词

(误)You can get a information from newspaper and the Internet.

(正)You can get information from newspaper and the Internet.

(正)You can get a piece of information from newspaper and the Internet.

(误)I"d like to share my favourite fruits with you.

(正)I"d like to share my favourite fruit with you.

(误)Paper is made from a bamboo.

(正)Paper is made from bamboo.

定冠词

定冠词，顾名思义，是用来指特定的人或物的，这是它的基本的用法。定冠词的用法。

(1)肯定用定冠词情况:①上文中已经讲到过的;②后面有限定性的修饰语的;③说话双方所共知的;④世上与众不同的。如:

Cut up a tomato, and put the tomato on the bread. ( tomato是上文中提到过的)

The singer in that room was given a warm welcome by his fans. ( singer后面有in thatroom的限制)

Please fill in the form and sign it. ( form是双方所共知的)

Which is the biggest, the sun, the moon or the earth? ( sun, moon, earth都是世界上罕有的的)

(2)定冠词也可以用在单数可数名词前表示类属，如前面举过的例子:

The tiger is a wild animal.

(3)形容词的高级前要用定冠词，如:

No matter how busy our parents are, they should make the best use of their time to stay withtheir children.

Television is the most effective tool to inform children of the latest news and scientific development over the world.

不用定冠词的情况。

(1)不要看到most，就以为它前面非得有个the不可，most有别的用法。如:

(误)With the emerge of information technology, the knowledge in textbook can"t satisfychildren"s curiosity any more. The most children need to learn wider knowledge and know moreabout our world.

(正)With the emerge of information technology, the knowledge in textbook can"t satisfychildren"s curiosity any more. Most children need to learn wider knowledge and know moreabout our world.

(2)序数词前要用定冠词，很多人把这条规则都记得很牢，但在某些固定的表达方式中出现的序数词前面却是不用the的，如果把它们看成是错误，那就上当了。如:。

John came out first in the final examination.

You are second to none as far as intelligence is concerned.

(3)大洋、海、河、山脉前都要求有定冠词，但洲名前却不能有定冠词，如:。

the Yangtze River, the Mountain Tai，the Arctic Ocean, the West Lake, North America,Africa。

(4)指演奏一种乐器时，乐器前必须要有定冠词;指进行一种球类活动时，球类前面不可用定冠词，如:

My younger brother prefers to play the guitar rather than play basketball.

(5)语言名称前没有定冠词，如:

(误)The Chinese, the most difficult but beautiful language in the world, is my mother tongue.

(正)Chinese, the most difficult but beautiful language in the world, is my mother tongue.

但如果在Chinese后面加上language，那么前面就要加定冠词T , the Chinese指的是全体中国人，如:

All the Chinese love their own language-Chinese most.

类似地，我们说:

Germany, the Germany language(德语)，the German(德国人);

Japan, the Japan language(日语), the Japanese(日本人);

Korea, the Korea language(韩语)，the Korean(韩国人)

(6)在“……年代”前必须用定冠词，但在一个具体的年份前绝不能用定冠词，如:

(误)...people who died in 1860"s.

(正)...people who died in the 1860"s.

(误)...people who died in the 1860.

(正)...people who died in 1860.

(7)人名前不可用定冠词，如，不可说I"d like to invite the Jack Green，应该说I"d liketo invite Jack Green.

在人名的所有格前，也不可用定冠词，如，不可说I believe you are a particular friendof the Pickwick"s，只可以说I believe you are a particular friend of Pickwick"s.

(8)定冠词和指示代词this, that, these, those在用于特指时，其性质、作用是一样的，因此不能同时使用:

(误)The this man came up to me in the street and started making rude suggestion.

(正)This man came up to me in the street and started making rude suggestion.

以上就是关于英语定冠词和不定冠词的用法，希望可以给大家学习带来帮助。