代词用法:不定冠词知识点总结用法

2023-02-01 07:09:00来源:新东方在线整理
  不定冠词
  We need an apple and a knife.
  我们需要一个苹果和一把刀子。
  1.a和an的区别
  不定冠词有a[+]和an[+Q]两种形式,a用于辅音(不是辅音字母)开头的词前。an用于元音(不是元音字母)开头的词前。
  a boy, a university, a European country
  u是元音字母,但发音是[U(],是辅音。
  an hour ,an honor ,an island
  h是辅音字母,但它不发音,它的音标是是元音。
  an elephant, an umbrella, an egg
  2(1)不定冠词的用法
  ①泛指—类人或物。
  eg. This is a pencil case.
  ②指不具体的某个人或物。
  eg. I met an old man On my way home.
  ③用在序数词前,相当于another.
  eg. There’s a third boy near the shop.
  ④表示“每—(个)”,相当于every.
  eg. They have music lessons twice a week.
  必背!
  give a lesson take a bath have a rest
  教(一堂)课 洗(个)澡 休息
  have a talk have a fever have a good time
  听报告 发烧 过得愉快
  have(take)a walk have a headache have a nice trip
  散步 头疼 旅途愉快
  a lot of, a lot, a little, a few, a glass of, such a/an, have a word with, have a look, have a try, have a swim, a quarter, half an hour, three times a day, have a talk, give a talk, ten Yuan a kilo
  (2)不定冠词的位置
  ①不定冠词—般放在所修饰的单数可数名词前。
  eg, a bike, an egg
  ②当名词被such, what, many修饰时,不定冠词放在这些词之后。
  eg.It took me half an hour to finish my homework.
  He left in such a hurry that he forgot to close the door.
  What a dangerous job it is!
  Many a man has gone to the big cities for work.
  ③当名词前的形容词前有so, how, too等词时,不定冠词应放在形容词之后。
  Eg. She was so nice a girl that she took the blind man to the station.
  How nice a film this is!
  ④当名词前面有形容词和quite, rather, very时,不定冠词放在quite, rather之后,very之前。
  eg.It is quite a good book.
  That is rather a useful too1.
  This is a very interesting story.

本文关键字: 冠词的用法

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