— What’s this in English?

— It’s _____ eraser.

A．a                B．an               C．the              D．/

 

【答案】

B

【解析】

試題分析：eraser是以元音音素開頭的單詞，故其前面需要冠詞時要用an，故選B。

考點：不定冠詞的用法。

點評：不定冠詞有兩個.根據(jù)后接單詞詞首音素的不同采用不同的形式.當詞首音素為元音時,用an;當詞首音素為輔音時,用a.實際中也可以根據(jù)首字母來判斷,這在大多數(shù)情況下不會出錯,但是個別單詞需要注意,如:hour,小時。名詞前已有作定語的this、that、my、your、some、any、等限定詞時不用任何冠詞，也就是零冠詞。

 

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