冠詞分為定冠詞（the）和不定冠詞（a/an）
定冠詞the的用法小結
1、特指某些人或某些物
eg：take the medicine. / Beijing is the capital of China. / Where is the girl in red?
2、上文提到過的人或事
eg：He bought a house. I have been to the house.
3、指談話雙方都知道的人或事物
eg：Let’s go to the computer room. / It’s in the desk.
3、指世上獨一無二的事物
eg：the sun, the earth, the sky
4、用於兩個人或事物比較時起特指作用作用的比較級前
eg：He is the taller of the two boys.
5、與形容詞或分詞連用表示一類人
eg：the rich, the poor / the living
6、用在形容詞最高級或序數詞前
eg：the second, the biggest.
7、用在表示西洋類樂器的名詞前，但中國樂器前不加the
eg：play the piano / guitar / violin / drums
8、用在姓氏的複數名詞前，表示「一家人」，謂語動詞用複數
eg：the Greens, the Chens, the Haos
不定冠詞a/an用法小結
1、第一次提到某人或某物時
eg：Do you want a notebook? / This is an apple.
2、用在序數詞前表示「又一，再一」
eg：The teacher sang him a second song. / Tom tried a second time.
3、當名詞被such, half, what修飾時，不定冠詞放在這些詞的後面
eg：such a nice girl, half an hour, what a / an…
4、當名詞前面的形容詞之前有so, how時，不定冠詞a, an要後置
eg：He is so good a boy that he often helps others.
How red an apple it is.
5、當名詞前有形容詞和quite, very, rather時，不定冠詞a, an置於quite和rather之後，very之前
eg：quite a good boy, a very moving movie, rather a cold day
特別提醒：不定冠詞a, an的區別
an用在以元音因素開頭的單詞前，a用在以輔音因素開頭的單詞前
判斷一個單詞是用a還是用an，要看發音的首因素，而不是首字母
20個元音因素： /a:/, /i:/, /e/, /ɔ:/, /u:/, /ə:/, /ʌ/, /i/, /æ/, /ɔ/, /u/, /ə/
/ei/, /ai/, /ɔi/, /əu/, /au/, /iə/, /eə/, /uə/
eg: an honest boy, an hour, an elephant, a panda, an orange, an MP4,
（1）用an的字母：a, e, f, h, i, l, m, n, o, r, s, x
（2）以u開頭的單詞，要特別注意
eg：an umbrella, a usual book, a university, an unusual one
零冠詞的用法（即不用任何冠詞）
1、在專有名詞、抽象名詞和物質名詞前不加冠詞
eg：We live in Hubei Province. Wuhan is a large city.
Failure is the mother of success. / Water is the most important thing for us.
2、一日三餐、球類和學科前不加冠詞
eg：have breakfast, play soccer / basketball / volleyball…, I like Science.
3、表示節日、季節、星期、月份的名詞前不加冠詞
eg：Spring Festival is important. / Today is Monday. / Spring comes. / We will come in July.
4、在稱呼和頭銜前不加冠詞
eg：Professor Wang, He is captain of the team.
5、在物主代詞、指示代詞、名詞所有格和不定代詞前不加冠詞
eg：His pen is good. / What are these? / Everything is OK. / Jane’s dress is nice.
6、不可數名詞前一般不加冠詞
eg：Which do you like better, fish or chicken?
7、泛指的複數前不用冠詞
eg：Animals live in the forest. / There are trees and flowers in the park.
8、與by連用的交通工具前不用冠詞，但與take或介詞連用時，名詞前要加冠詞
eg：by car, take a bus / take the subway / He goes to school in a car.