A fire broke out in the neighborhood last night. By the time the firemen arrived, it    . 
A.had been put outB.would put out
C.has been put outD.was putting out
A

試題分析:考查時(shí)態(tài)和語(yǔ)態(tài)。本題中的By the time the firemen arrived是指到消防員到達(dá)的時(shí)候,這是一個(gè)過(guò)去的時(shí)間;所以后面使用了過(guò)去完成時(shí)的被動(dòng)語(yǔ)態(tài)。句意:昨天晚上在一個(gè)社區(qū)爆發(fā)了一次火災(zāi),搭配消防員到了的時(shí)候,大火已經(jīng)被撲滅了。故A正確。
點(diǎn)評(píng):連詞by到…時(shí)為止;該詞經(jīng)常與完成時(shí)連用,如果后面是現(xiàn)在的時(shí)間,句中就使用現(xiàn)在完成時(shí);如果后面是過(guò)去的時(shí)間,就使用過(guò)去完成時(shí);如果后面是將來(lái)的時(shí)間,就使用將來(lái)完成時(shí)。語(yǔ)態(tài)是動(dòng)詞的一種形式,表示主語(yǔ)和謂語(yǔ)動(dòng)詞之間的邏輯關(guān)系,被動(dòng)語(yǔ)態(tài)表示主語(yǔ)是謂語(yǔ)動(dòng)詞所表示的動(dòng)作的承受者。
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