情态动词shall_should__must_用法及练习

Modalverbs1.shall(1)用于疑问句与第一、三人称连用，表示征求意见或请求许可。•1)Shallwegooutforamealtogether?•2)Shallthenewcomerhaveatry?•1.---Theroomissodirty.______wecleanit?•----Ok.•AwillBShall•CWouldDDo(2)用于肯定句与二、三人称连用，表示说话人的允诺，决心，威胁，警告，命令，或法律、文件的规定。•Nothingshallstopmefromgoingthere.•Youshallbesorryforwhatyouhavedone,Itellyou.决心威胁/警告•3.Youshallgetanmp5asyourbirthdaypresentthisyear.•4.Thefineshallbepaidincash.•5.Personsunder18shallnotbeemployed.（允诺）（规定）（规定）“Theinterest(利息)__bedividedintofiveparts,accordingtotheagreement,”declaredthejudge.A.mayB.shouldC.mustD.shall•2.should•表示惊讶、遗憾、“竟然，居然”•It’sstrangethatheshouldfailagain.•Youcan’timaginethatawell-behavedgentleman___besorudetoalady.•A.mightB.needC.shouldD.would•3.must•----MustIdoitatonce?----Yes,you______./----No,you_____.(=No,you___________mustneedn’tdon’thaveto)•Youmustn’twasteanymoretime.•Youmustnotsmokehere.•禁止,不可以,千万别•2)肯定推测，“一定，准是”（只能用于肯定句）•1.Shemustbetiredaftersuchalongwalk.•2.Hemustbesleepingnow.•---Hi,Tom.AnyideawhereJaneis?•---She_____intheclassroom.Isawhertherejustnow.AshallbeBshouldhavebeenCmustbeDmighthavebeen3.must表示固执,不满,意为“偏偏，偏要,非得”•----MayIsmokehere?----Ifyou__,chooseaseatinthesmokingsection.A.shouldB.couldC.mayD.mustJohn,lookatthetime,__youplaythepianoatsuchalatehour?A.MustB.CanC.MayD.NeedWould的用法1.would是will的过去式,但它也是一个情态动词.(would+动词原形）（1）wouldyou表示委婉，客气的说法a)Wouldyouliketohaveacupoftea?b)Wouldyoumindmysmokinghere?c)Wouldyoutellmethewaytothepark?（2）.表示愿意，宁愿，肯a)Hewouldeatnothingb)Itoldhimnottogo,buthewouldnotlistenc)Hewoulddoinspiteofourwarnings.（3）.表示假想的愿望.(但愿,要是...多好/虚拟)a)Wewishthathewouldcomeagain.b)ItwouldbegoodifIcouldfly!