题目内容
20．There is ________ elephant in the picture．（ ）| A． | a | B． | an | C． | the | D． | \ |
分析 在图画上有一只大象．
解答 答案为B．不定冠词（a，an）表示泛指，定冠词（the）表示特指．不定冠词a、an是"一个"的意思，a、an可以和一个名词连用，a与an 的区别是a用于辅音音素前，an则用于元音音素前．定冠词the有"那（这）个"的意思，the可以和一个名词连用，来表示某个或某些特定的人或东西．句子中elephant是表示泛指一只大象，elephant是可数名词并且elephant的音标是[?el?f?nt]，发音的首字母为元音音素，故用an．故答案为B．
点评 这一题学生要了解不定冠词和定冠词之间的区别，然后判断句子是要用不定冠词来作答，而且还得区别a、an之间的用法，最后就得知答案．
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