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(yuǎn)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(shù)、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”.
