33　不定冠詞a，an的位置　Track27

33　不定冠詞a，an的位置　Track27

不定冠詞a用在以輔音音素（并非輔音字母）開頭的名詞前；不定冠詞an用在以元音音素開頭的名詞前。例如：

a boy　a student

a university　a unique person

an hour　an unkind old lady

a. An apple a day keeps the doctor away.　一天一蘋果，醫(yī)生遠離我。

b. Old hen （母雞）: Let me give you a piece of good advice.

Young hen: What is it?

Old hen: An egg a day keeps the ax away.

一天一個蛋，不把斧頭見。

c. Telling lies is a fault in a boy, an art in a lover, an accomplishment in a bachelor, and second nature in a married man.

說謊是男孩的錯誤、情人的藝術、單身男人的技能、已婚男人的第二天性。

an 還用在發(fā)音以元音開頭的單個字母前面。例如：

an SOS sign

An L letter is in the word “letter”.