题目内容
20.At primary school,I dreamed of being_____astronaut.( )A. | a | B. | an | C. | the | D. | / |
分析 在小学,我梦想成为一名宇航员.
解答 答案:B 不定冠词a (an)与数词one 同源,是"一个"的意思.a用于辅音音素前,一般读作[e],而an则用于元音音素前,一般读做[en];定冠词the与指示代词this,that同源,有"那(这)个"的意思,可以和一个名词连用,来表示某个或某些特定的人或东西;除了专有名词和不可数名词前不用冠词外,三餐饭和球类运动前也不用冠词;因此该句中的astronaut的前面需要用冠词;根据句中的astronaut,首字母是元音音素,可知该句中用冠词an;故选B.
点评 识记冠词的区别和不同的用法,根据句中的要求正确作答.
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