17.The villagers _______ the buried people without stop since the accident happened.(  )
A.searched forB.have searched for
C.had searched forD.have been searching for

分析 村民們?cè)谑鹿拾l(fā)生以后一直在一刻不停地尋找被埋的群眾.

解答 答案:D.
根據(jù)后面的時(shí)間狀語(yǔ)without stop since the accident happened,可知應(yīng)該用現(xiàn)在完成時(shí),而且搜尋的結(jié)果是未定的,所以搜尋還在進(jìn)行,所以用現(xiàn)在完成進(jìn)行時(shí),表示從過去某一時(shí)刻開始一直持續(xù)到現(xiàn)在,而且這一動(dòng)作還將進(jìn)行下去,表達(dá)的是一種強(qiáng)烈的情感,即不放棄搜尋被困群眾.所以選D.

點(diǎn)評(píng) 分清不同時(shí)態(tài)的具體用法很關(guān)鍵.

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