题目内容
10．Sam wants to be _________ actor．（ ）| A． | a | B． | the | C． | an |
分析 Sam想要成为一名演员．
解答 答案：C 根据题意，可知本题考察不定冠词a、an的用法．形容词或者名词前面加冠词a还是an要看紧挨着的单词的首字母的音素，而不是看首字母是元音字母还是辅音字母，如果是元音音素就要填an，如果是辅音音素就要填a．actor的音标为[??kt?]，首字母a的音素为元音音素，所以答案为an．故选C
点评 做这一类型的题时，一是要确定考察的知识为不定冠词a，an的用法，a，an表示"数量为一"；二是填不定冠词a还是an，要看它紧挨着的单词的首字母的音素，如果是元音音素就要填an，如果是辅音音素就要填a．
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