题目内容
19.There is _____ pencil on the desk.( )| A. | an | B. | a | C. | the | D. | / |
分析 在桌子上有一支铅笔.
解答 答案:B.根据语境和关键词可知这是一个考察不定冠词a和an的用法的题.形容词或者名词前面用冠词a还是an来修饰要看紧挨着的单词的首字母的音素是元音音素还是辅音音素.如果是元音音素就要填an,如果是辅音音素就要填a.pencil首字母p的音素为辅音音素,所以用a来修饰.故选B
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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