情态动词+ have done复习 -自创.ppt

情态动词 havedone 情态动词 havedone musthavedone 当时一定 一定已经 may mighthavedone 当时可能 可能已经 couldhavedone同上can t couldn thavedone 当时不可能 不可能已经 maynothavedone 当时也许不 mightnothavedonecan couldhavedone 陈述肯定句 陈述否定句 疑问句 对过去情况的推测 1 Ididn thearthephone I asleep A mustbeB musthavebeenC shouldbeD shouldhavebeen2 DoyouknowwhereDavidis Icouldn tfindhimanywhere Well he havegonefar hiscoat sstillhere A shouldn tB mustn tC can tD wouldn t3 SorryI mlate I haveturnedoffthealarmclockandgonebacktosleepagain A mightB shouldC canD will 3 虚拟语气 与过去事实相反的主句 本 mighthavedonecouldhavedonewouldhavedonecouldn thavedonemightnothavedoneshould not havedoneoughtto not havedone 观察 哪些情态动词没有这种用法 1 MysistermethimattheGrandTheateryesterdayafternoon sohe yourlecture 上海2000 A couldn thaveattendedB needn thaveattendedC mustn thaveattendedD shouldn thaveattended 该题前句叙说一个客观事实 后句对前句进行补充说明 分析选项可知C是错误的 而B D两项不符合题意 故本题选A 2 Jack yet otherwisehewouldhavetelephonedme 上海 06 A mustn thavearrivedB shouldn thavearrivedC can thavearrivedD neednothavearrived can thavearrived表示强烈的否定的猜测 语气较弱时用couldn thavedoneormightnothavedoneormaynothavedone neednothavedone 表示过去本来没有必要做某事 但事实上却做了 3 Iwasreallyanxiousaboutyou You homewithoutaword A mustn tleaveB shouldn thaveleftC couldn thaveleftD needn tleave 分析该题前后句之间的关系和语气可知 事实上是 本不应该离家出走却走了 故本题选B 4 ItoldSallyhowtogethere butperhapsI forher NMET 04 A hadtowriteitoutB musthavewrittenitoutC sho