题目内容
20．My dream is to be _________ teacher in the future．（ ）| A． | a | B． | the | C． | an |
分析 我的梦想是将来成为一名老师．
解答 答案：A
根据现有句子及选项可知，此句句意为"我的梦想是将来成为一名老师．"此处缺少一个不定冠词．不定冠词a 用在元音音素前，an 用在辅音音素前．teacher['ti?t??]是以辅音开头的单词，故此处应用不定冠词a，答案为A
点评 做这样的题时要先根据现有句子确定此处应为不定冠词，然后再根据所修饰的单词确定此处应填a
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