不定冠詞知識點總結(jié)
We need an apple and a knife.
我們需要一個蘋果和一把刀子。
1.a和an的區(qū)別
不定冠詞有a[+]和an[+Q]兩種形式，a用于輔音(不是輔音字母)開頭的詞前。an用于元音(不是元音字母)開頭的詞前。
a boy, a university, a European country
u是元音字母，但發(fā)音是[U(]，是輔音。
an hour ，an honor ，an island
h是輔音字母，但它不發(fā)音，它的音標是是元音。
an elephant， an umbrella， an egg
2(1)不定冠詞的用法
①泛指—類人或物。
eg. This is a pencil case.
②指不具體的某個人或物。
eg. I met an old man On my way home.
③用在序數(shù)詞前,相當于another.
eg. There’s a third boy near the shop.
④表示“每—(個)”,相當于every.
eg. They have music lessons twice a week.
必背!
give a lesson take a bath have a rest
教(一堂)課 洗(個)澡 休息
have a talk have a fever have a good time
聽報告 發(fā)燒 過得愉快
have(take)a walk have a headache have a nice trip
散步 頭疼 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)不定冠詞的位置
①不定冠詞—般放在所修飾的單數(shù)可數(shù)名詞前。
eg, a bike, an egg
②當名詞被such, what, many修飾時，不定冠詞放在這些詞之后。
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當名詞前的形容詞前有so, how, too等詞時，不定冠詞應(yīng)放在形容詞之后。
Eg. She was so nice a girl that she took the blind man to the station.
How nice a film this is!
④當名詞前面有形容詞和quite, rather, very時，不定冠詞放在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.