6．I have ______ English dictionary and it helps me a lot．（　　）
A．aB．anC．theD．/

分析 我有一本英語字典，它幫助我很多．

解答 答案：B．根據(jù)語境可知這是一個(gè)考察不定冠詞a和an的題，表示數(shù)量為一時(shí)使用冠詞a或者an來修飾．形容詞或者名詞前面加冠詞a還是an要看緊挨著的單詞的首字母的音素，如果是元音音素就要填an，如果是輔音音素就要填a．Englishg首字母e的音標(biāo)為/?/，是元音音素，所以填an．故選B．

點(diǎn)評(píng) 做這種題時(shí)，一是要根據(jù)語境和上下文確定為考察不定冠詞的用法，a，an表示"數(shù)量為一"；二是要注意形容詞或者名詞前面加冠詞a還是an要看緊挨著的單詞的首字母的音素，如果是元音音素就要填an，如果是輔音音素就要填a

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