虚拟语气用法解PPT课件.ppt

.,1,TheSubjunctiveMood虚拟语气,Grammar,HehasDaydreaming,.,2,英语中的三种语气,陈述语气：用于陈述事实。祈使语气：用于提出请求、命令等。虚拟语气：表示说话人说的不是事实而是一种假设、猜想等。表示说话人的愿望、要求、命令、建议等。,.,3,一.虚拟语气在条件从句中的用法,条件句有两类，一类是真实条件句，一类是虚拟条件句。,（1）真实条件句：假设的情况是有可能发生的。,Ifitdoesntraintomorrow,wewillgotothepark.,（2）虚拟条件句：假设的情况是过去或现在都不存在的，或将来都不可能发生的。,Ifhehadseenyouyesterday,hewouldhaveaskedyouaboutit.,.,4,1.与现在事实相反,从句-过去式(be通常用were)，主句-should(would,could,might)+动词原形”：,IfIknewhernumberIcouldringherup.,Ifhewerefree,hewouldhelpus.,Should用于第一三人称would表示结果，might表示可能性，could表示能力、允许或可能性,.,5,IfIhadalotofmoney,Iwouldbuyavilla.,.,6,1.如果我是只鸟，我就能在天上飞了。,IfIwereabird,Icouldflyinthesky.,2.IfI_(有)aknife，I_(就杀了)you。,had,wouldkill,.,7,2.与将来事实相反或将来的愿望推测,从句-did/should+do/weretodo主句-should/would/could/might+do,.,8,Ifhegotupearly,hewouldbeontime.,.,9,3、与过去事实相反,从句haddone主句should/would/could/might+havedone,.,10,Ifhe_morecarefully,he_thecaraccidentyesterday.,haddriven,wouldnothavehad,.,11,虚拟语气在条件状语从句中的用法总结,时态,If从句的谓语形式,主句的谓语形式,现在,过去,未来,did/were,would/could/should/might+V.(原),would/could/should/might+have+p.p.,1.did/were2.shoulddo3.weretodo,would/could/should/might+V.(原),haddone,.,12,二：交叉虚拟,主从句动作发生的时间不同时，按时间来确定虚拟形式。Iftheweatherhadbeenbetter,thecropswouldbegrowingstillbetter.,.,13,Ifitwerenotforyouradvice,wecouldnthavegotoverthedifficulties.Wereitnotforyouradvice,wecouldnthavegotoverthedifficulties.,.,14,当If条件句中有were,had,should这三个助动词时，可将If省略，从而将这三个助动词放到句首。,.,15,without和butfor构成虚拟。(butfor要不是),Withoutsunlight,peopleslifewouldbedifficult.Butforyourhelp,Iwouldnthavefinishedthework.,.,16,otherwise,or,orelse等的虚拟用法Shewasntfeelingverywell.Otherwiseshewouldnthaveleftthemeetingsoearly.,.,17,高考链接：Jackcanthavearrivedyet,otherwisehe_me.wouldphonedB.phonedC.wouldhavephonedD.hadphoned,.,18,三、虚拟语气在名词从句中的用法A.用于宾语从句,wish+宾语从句,现在：过去：将来：,过去时(did/were),过去完成时(haddone),would/could/might/should+V.,.,19,2.wouldrather-,现在：过去：未来：,Iwouldratheryoupaidmenow.(现在),Iwouldratheryouhadgone,too.(过去),Dontcome.Iwouldratheryoucametomorrow.(未来),过去时,过去时,过去完成时,.,20,Would/hadrather(not)havedonesth宁愿过去（没）做了某事,.,21,一个坚持：insist两个命令：order,command三个建议：advise,suggest,propose四个要求：demand,require,request,desire,从句谓语动词使用“（should）+V原形”,.,22,Hesuggestedthatwe(should)gohomeatonce.如果suggest表示“暗示，表明”、insist表示“坚持说/认为”时，从句用陈述语气。,.,23,主句的主语如果是表示说话人的愿望（wish/desire）建议（suggestion/advice/proposal）要求（requirement/demand）命令（order/command）等名词，表语从句谓语动词用“（should）+V原形”,.,24,Oursuggestionisthatyou(should)bethereontime.,.,25,虚拟语气在同位语从句中的使用,如果同位语从句所修饰的名词是表示说话人的愿望，建议，要求，命令等名词时。从句谓语动词用“（should）+V原形”,.,26,Thesuggestionthatstudents(should)learnsomethingpracticalisworthconsidering.,.,27,在句型“Itsnecessary/strange/natural/important/vital+that”从句的动词要用虚拟，即使用(should)+动词原形,虚拟语气在主语从句中的使用,.,28,Itsnecessarythatweshouldhaveawalknow.,.,29,考题点击：1.Isitnecessarythathe_theexamination?A.tookB.havetotakeC.musttakeD.take,D,Hissuggestionthatyou_oncemoresoundsreasonable.,A.tryB.triesC.musttryD.cantry,A,.,30,在asif/though引导的从句中，若表示与现在事实相反，用一般过去时，与过去事实相反，用过去完成时。,虚拟语气在asif/though从句中的使用,.,31,Shelookedaftertheboyasifhewereherownson.,用于Ifonly引导的感叹句（用法同wish）ifonly通常独立使用，没有主句。,.,33,IfonlyIwererich.IfonlyIhadlistenedtomyparents!Ifonlyshewouldgowithme!,.,34,在句型“Itsamazing/strange/surprising/astonishing/ashamet