小學(xué)英語語法知識(shí)：冠詞

　　二.冠詞：不定冠詞，定冠詞種類：

　　(1)不定冠詞：a / an a unit / an uncle

　　元音開頭的可數(shù)名詞前用an ：

　　an egg / an apple / an orange / an eraser / an answer / an ID card / an alarm clock / an actor / an actress / an e-mail / an address / an event / an example / an opera / an houran old man / an interesting book / an exciting sport / an action movie / an art lesson /

　　(2)定冠詞：the the egg the plane

　　用法：

　　定冠詞的用法：

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

　　復(fù)述上文提到的人或物：He has a sweater. The sweater is new.

　　談話雙方都知道的人或物：The boys aren’t at school.

　　在序數(shù)詞前： John’s birthday is February the second.

　　用于固定詞組中： in the morning / afternoon / evening

　　不用冠詞的情況：

　　專有名詞前：China is a big country.

　　名詞前有定語：this ， that ， my ， your ， some， any ， no 等：

　　This is my baseball.

　　復(fù)數(shù)名詞表示一類人和事：Monkeys can’t swim. They are teachers.

　　在節(jié)日，日期，月份，季節(jié)前：Today is Christmas Day. It’s Sunday.

　　一日三餐前：We have breakfast at 6：30.

　　球類 棋類運(yùn)動(dòng)前：They often play football after class. He plays chess at home.

　　* 但樂器前要用定冠詞：I play the guitar very well.

　　學(xué)科名稱前：My favorite subject is music.

　　在稱呼或頭銜的名詞前：This is Mr Li.

　　固定詞組中：at noon at night by bus