While watching television，____． 

A．the doorbell rangB．the doorbell rings
C．we heard the doorbell ringD．we heard the doorbell rings

C

解析試題分析：考查分詞做狀語的用法。當(dāng)分詞做狀語時(shí)，分詞的邏輯主語一定是句子的主語，現(xiàn)在分詞的邏輯主語是動(dòng)作的執(zhí)行者；過去分詞的邏輯主語是動(dòng)作的承受者。本題中使用了watching,說明該動(dòng)詞的邏輯主語也要是句子的主語，選項(xiàng)中只有Ｃ項(xiàng)的主語是人，也就是watch television的發(fā)出者。故C正確。
考點(diǎn)：考查分詞做狀語用法
點(diǎn)評(píng)：分詞做狀語是有條件的，當(dāng)分詞做狀語時(shí)，分詞的邏輯主語一定是句子的主語，現(xiàn)在分詞的邏輯主語是動(dòng)作的執(zhí)行者；過去分詞的邏輯主語是動(dòng)作的承受者。

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