内容正文:
专题5冠词和数词
考点一、不定冠词的用法。
不定冠词用a还是an由后面一个词的首音决定。以元音开头的词前用an,以辅音(包括半元音,不是元音字母)开头的词前用a。
1.a和an均用在单数可数名词之前,表示某一类人或事物。如:
A dictionary is a useful book.;An underground train can start and stop quickly.
2.指某一类人或事物中的任何一个。如:This is a book.; He used to be an engineer.
3.泛指某人或某物,但未具体说明何人、何物,如:A boy is waiting for me.;Give me a pen, please.
4.表示“每一”的意思,相当于every。如:Behind the house there is a garden.;once a week.
5.用于某些固定词组中,如:a few, a little, a lot of, a number of, just a minute, in a hurry等。
考点二、定冠词的用法。
1.指彼此都知道的人或事物,如:Open the door, please.;Go and close the window.
2.特指某(些)人或某(些)事物,如:The girl in red is my sister.;The book on the desk is mine.
3.指前面提到过的人或事物,如:Here is a picture of a modern car factory. My father works in the factory.
4.表示世界上独一无二的事。如:the sun; the moon; the sky等。
5.用在序数词和形容词最高级前,以及在方位词前。如:The Nile is the longest river in the world.
He won the first prize.;The sun rises in the east.
6.用在某些形容词前,表示一类人或事物,如:the rich, the sick, the new,the false等。
7.用在姓氏复数之前,表示“某一家人”,“某某夫妇。如:the Lis, the Zh