18．When she entered the police station，she recognized the man who ______ her at once．（　�。�
A．was attackingB．attackedC．had attackedD．would attack

分析 當(dāng)她走進(jìn)警察局時(shí)，她認(rèn)出了那個(gè)曾經(jīng)襲擊她的人．

解答 答案：C
根據(jù)句意可知，此處的動(dòng)作"attack her"應(yīng)發(fā)生在"she recognized the man（使用了一般過(guò)去時(shí)）"之前；即：襲擊她應(yīng)發(fā)生在（過(guò)去）她認(rèn)出了那個(gè)人之前；因此此處表示發(fā)生在過(guò)去某時(shí)間之前的動(dòng)作，應(yīng)使用過(guò)去完成時(shí)；A．過(guò)去進(jìn)行時(shí)，表示在過(guò)去某時(shí)間正在發(fā)生的動(dòng)作或狀態(tài)；B．一般過(guò)去時(shí)，表示過(guò)去某時(shí)間里發(fā)生的動(dòng)作或狀態(tài)；D．過(guò)去將來(lái)時(shí)，表示從過(guò)去的某一時(shí)間來(lái)看將來(lái)將要發(fā)生的動(dòng)作或狀態(tài)；因此A．B．D都不會(huì)句意；故選C

點(diǎn)評(píng) 本題考查了過(guò)去完成時(shí)的用法（had+done）．做本題的關(guān)鍵是要根據(jù)句意，判斷出該動(dòng)作發(fā)生的時(shí)間是在過(guò)去的過(guò)去；另外，還應(yīng)了解各時(shí)態(tài)所表達(dá)的具體意義以及它們之間的用法區(qū)別．

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