八年级英语上册 Unit 2 Keeping Healthy Topic 1 You should brush your teeth twice a day Section A情态动词should的用法课件 （新版）仁爱版.ppt

1 shoulddo 表现在 可将来 shouldhavedone 表过去 应该 weshouldlearnaboutthecomputerandmakefulluseofit 我们应该了解计算机并加以充分利用 youshouldlistentothedoctor sadvice 你应当听大夫的话 ishouldhavefinishedmywork 我应该做完我的工作 实际上还没有做完 mustn t shouldn thadbetternot theyshouldn tleftsosoon 表禁止 youshoulddowhatyourparentstellyou ioftenseelightsinthatemptyhouse doyouthinkishouldreportittothepolice should musthaveto 表义务 应该 有时态变化 i lltellmaryabouthernewjobtomorrow youshouldhavetoldherlastweek 表示与过去事实的相反 意为 本应该 2 在itis wasrightthat 类句型的that从句中 以虚拟语气表示 应该如此 或 不合理 难以置信 不该如此 等意思 事实并非如愿 例如 itis wasnowonderthatheshouldhavesucceeded 表过去 难怪他会成功 itis wasapitythatheshouldhavefailed 表过去 真可惜他失败了 itisnotrightthatoneshouldspeakillofothers 表现在及未来 说别人的坏话是不对的 itisstrangethatyoushouldsayso 表现在 你这样说话真奇怪呀 这一句型还可用以下这些词来代替right等词 natural necessary strange important advisable better desirable 合意的 essential good proper well urgent wrong funny pitiful athousandpities regrettable 令人惋惜的 toberegretted 令人惋惜的 surprising 令人吃惊的 类似句型还有 以下句中should意为 竟然 居然会 iamsorrythatishouldhavespokensorudely 表过去 我很抱歉我竟然说话那么粗鲁 whatareyou iamsuprised thatyoushouldhavesoinsultedourteacher 表过去 你是谁竟然对我们老师如此无礼 3 表明显的结果或合理的推论 且所期待的事几乎是事实 不是虚拟语气 例如 marytookdancingdessonsforyears sheshouldbeanexcellentdancer 玛丽学了几年的舞蹈 她该是位很优秀的舞蹈家 itisthreeo clock thefootballgameshouldbeginsoon 已是3点钟了 足球比赛开始了 4 在疑问句中表示惊讶 不合理 难以置信或不应说的事 例如 whyshouldigo 我干嘛要去 不满 whyshouldhepublishsuchabook 为何他竟会出版这种书 whyshouldyoubesorryaboutthenews 你为何对这消息感到难过 shouldhedosuchathing 他会做这种事吗 howshouldiknow 我怎么会知道 whoshouldwriteitbuthimself 不是他自己还有谁会写呢 5 带should的习惯用语 a ishouldsay 我敢说 heisoverforty b sheisoverthirty ishouldthink 我相信 6 should用于虚拟语气 youcan timaginethatawell behavedgentlemanshouldbesorudetoalady 表示吃惊 意为 竟然会 1 incasei iwouldtryagain a willfailb wouldmissc shouldfaild shallmiss 2 heaskedmeifhe openthewindow a shallb wouldc willd should 3 everyone dohisbesttomaketheworldsafeandclean a canb mayc shouldd hadto didn t needn ttodo本不需要做而实际上也没做shouldhavedone本应该做而实际上没做 责备 1 itwasreallyverydangerous you himseriously a mighthaveinjuredb couldinjurec shouldhaveinjuredd mustinjure practice 2 youmindmyopeningthewindow notatall a shallb shouldc willd would 3 ididn thearthephone i asleep a mustbeb musthavebeenc shouldhaved couldhavebeen 4 you paymoreattentiontoyourspellingnexttime a wouldb shouldc willd shall 5 theteachertoldthestudentsthatthey keepsilentinclassallthetime a oughttonotb oughtnottoc oughtnottohaved can t 6 acomputer thinkforitself it betoldwhattodo a maynot mustb mustn t m