02

　　冠词：不定冠词，定冠词种类

　　(1) 不定冠词：a / an a unit / an uncle

　　元音开头的可数名词前用an :

　　an egg / an apple / an orange

　　(2) 定冠词：the

　　the egg / the plane

　　2. 用法:

　　定冠词的用法：

　　特指某(些)人或某(些)物： The ruler is on the desk.

　　复述上文提到的人或物：He has a sweater. The sweater is new.

　　谈话双方都知道的人或物：The boys aren't at school.

　　在序数词前： John's birthday is February the second.

　　用于固定词组中： in the morning / afternoon / evening

　　不用冠词的情况：

　　专有名词前：China is a big country.

　　名词前有定语：this , that , my , your , some, any , no 等：

　　This is my baseball.

　　复数名词表示一类人和事：Monkeys can't swim. They are teachers.

　　在节日，日期，月份，季节前：Today is Christmas Day. It's Sunday.

　　一日三餐前：We have breakfast at 6:30.

　　球类 棋类运动前：They often play football after class. He plays chess at home.

　　* 但乐器前要用定冠词：I play the guitar very well.

　　学科名称前：My favorite subject is music.

　　在称呼或头衔的名词前：This is Mr Li.

　　固定词组中：at noon at night by bus