2018济南小学英语语法知识：冠词
第二部分：语法知识
二.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 / 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)定冠词：the the egg the plane
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 arent at school.
在序数词前： Johns 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 cant swim. They are teachers.
在节日，日期，月份，季节前：Today is Christmas Day. Its 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