Question

The driver ____ have drunk a lot before the accident, but I'm not quite sure of that．

A．might

B．must

C．should

D．would

Answer 1

A

試題分析：考察情態(tài)動(dòng)詞用法。Might have done也許做了某事；must have done一定做了某事；should have done本應(yīng)該做某事，實(shí)際上卻未做；would have done會(huì)做某事；句意：司機(jī)也許在事故之前喝酒了。但是我也我不確定。根據(jù)后半句我不確信，說(shuō)明這是對(duì)過(guò)去情況的一種沒(méi)有把握的推測(cè)。故A正確。
點(diǎn)評(píng)：本題是高考必考考點(diǎn)，一定要牢記句型意思。must have done過(guò)去肯定做了某事。should have done 本應(yīng)該做而實(shí)際未做。 can’t have done 過(guò)去不可能做了某事；shouldn’t have done 本不應(yīng)該做而實(shí)際做了。 need have done 本有必要做某事；needn’t have done 本沒(méi)有必要做某事；注意沒(méi)有 mustn’t have done的形式。