ORBIS doctor who got here yesterday needed X-ray machine to examine his patients．( )A．The, aB．The, anC．An, aD．An, an 题目和参考答案——青夏教育精英家教网—

题目内容

3．_____ORBIS doctor who got here yesterday needed _______ X-ray machine to examine his patients．（　　）

A．

The； a

B．

The； an

C．

An； a

D．

An； an

分析昨天到这儿的ORBIS医生，需要一台x光机来检查他的病人．

解答答案：B．第一空是特指，因为ORBIS医生是昨天到这里的医生，用定冠词the；第二空是泛指一台，只要是X光机就行，用不定冠词，又因为X【eks】第一个音素是元音音素，故用an．故选B

点评本题考查冠词的用法，冠词分为定冠词、不定冠词及零冠词．定冠词the表特指或是双方都知道的人或物，不定冠词an用在元音音素的前面，a用于辅音音素的前面．

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13．

（last Saturday）
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