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1、a用在读音以辅音开头的单词前。 a book, a desk, a student,定冠词：a, an,2. an用于读音以元音开头的单词前。 an English book, an art lesson,eye friend hour university honest boy egg important person European,定冠词：a, an,a,an,a,a,an,an,an,an,定冠词只用于单数形式的可数名词前,表示“同类中的任何一个，泛指”。 Have you got a pen ?,定冠词：a, an,2.表示“每一”。 We have an English less
2、on every day.,3.表示“一个”。 I have an English book.,定冠词：a, an,4.固定搭配,have a look, for a time, as a result, with a smile, have a word with,定冠词the与this, that, these, those同源，可意为“这，那，这些，那些”。,不定冠词：the,1.上文提到过的人或物,不定冠词：the,There are two books on the desk, but the books are too old.,2.听者和说话人都知道所指的东西。,Please l
3、ook at the screen.,3.世上独一无二的事物，如天体,不定冠词：the,the sun, the moon, the earth,4.乐器,play the piano, play the guitar,5.姓氏前，表某某一家,the Greens, the Smiths,6.形容词最高级，序数词前,不定冠词：the,He is the tallest boy in our class.,7.表地点，时间，方位的词前,on the left/right,in the east, in the morning/afternoon/evening in the centre of, on the edge of,Who is the first to come here?,8.专有名词,不定冠词：the,the Great Wall, the Yellow River, the Summer Palace, the USA, the UK, the UN,all the time, the same as, all over the world,9.固定搭配,
