If we ________ the other road, we might have arrived here in time for the meeting.
A.had takenB.takeC.tookD.have taken
A

試題分析:考查條件句虛擬語氣。如果是與過去事實(shí)相反的時(shí)候,在條件句中使用過去完成時(shí),主句使用“情態(tài)動詞+have done”的形式。句意:如果我們走了那條路,我們也許就可以及時(shí)趕上那次會議。故A正確。
點(diǎn)評:條件句的虛擬語氣是考查的重點(diǎn)。如果過去事實(shí)相反,條件句中使用過去完成時(shí),主句使用“情態(tài)動詞+have done”;如果主句與現(xiàn)在事實(shí)相反,條件句中使用過去時(shí),be動詞使用were,主句中使用“情態(tài)動詞+動詞原形”;如果與將來事實(shí)相反,條件句中有三種:過去時(shí);were to do ;should+動詞原形,主句使用“情態(tài)動詞+動詞原形”;要特別注意如果省略了if,句子要使用部分倒裝的形式,把助動詞,be動詞,情態(tài)動詞提之主語前。
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