冠词的种类
1、不定冠词 a/an的用法
a用于辅音音标开头的单词前（不一定是辅音字母）：an用于元音音标开头的单词前（不一定是元音字母） ：an old man
a friend
an American writer
a Chinese bookan English book
注意 以字母h，u，e，y开头的单词：an hour/honor/honest
a universityan umbrella-a usual/useful book
a European
a young mana youth
泛指人、事、物的类别 A.English is a useful language.
B.A horse is a useful animal.
C.His telehpone number begins with a“3”。
泛指某人某物
There's a man waiting for you at the gate of our school.
There's a book lying on the floor.
表示every/per的含义
This kind of Santana car can run 150 kilometers an hour.
Some students of Senior Three study 12 hours a day.
