10．When I got home yesterday，my son was watching ______TV while my daughter was playing _______piano．（　　）
A．a，theB．不填，theC．the，aD．the，the

分析 昨天當(dāng)我到家的時(shí)候，我的兒子在看電視而我的女兒在彈鋼琴．

解答 答案：B．
聯(lián)系語(yǔ)境推測(cè)句意是"昨天當(dāng)我到家的時(shí)候，我的兒子在看電視而我的女兒在彈鋼琴．"，第一個(gè)設(shè)空處，表示"看電視"用固定短語(yǔ)watch TV，第二個(gè)設(shè)空處表示"彈鋼琴"樂(lè)器前加the，故選B．

點(diǎn)評(píng) 本題考查冠詞的用法，泛指一類(lèi)人或物用a或an．元音音素（注意不是元音字母）開(kāi)頭的單數(shù)可數(shù)名詞前用an，輔音音素開(kāi)頭的單數(shù)可數(shù)名詞前用a．特指某人、某物用the．另外注意識(shí)記與冠詞有關(guān)的一下固定短語(yǔ)．

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