精英家教网 > 初中英语 > 题目详情
Please give me ________envelope, I want to write a letter to my father.
A.aB.anC.theD./
B

试题分析:句意:请给我一个信封,我想给我的父亲写封信。结合语境可知前文泛指任何一个信封,故用不定冠词。Envelope词首音素是元音,故不定冠词用an,选B。
点评:冠词是一种虚词,一般用于名词前面表示特指或者泛指某一个。冠词的应用都用一定规则,熟记这些规则是解题的关键。不定冠词用在名词前,表示泛指任何一个。定冠词用在名词前表示特指某一个。在专有名词及表示泛指的复数名词前一般不要冠词,叫做零冠词。需注意的是不定冠词的用法是看词首音素,不是看首字母,如:useful首字母是元音,但是词首音素时辅音,故不定冠词用a;hour首字母是辅音,但是词首音素是元音,故用冠词an。
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