资源描述:
《高二英语Book6Unit1(知识点及语法课件).ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Unit1Art虚拟语气SubjunctiveMood1.英语动词有三种语气:陈述语气,祈使语气和虚拟语气。2.定义:用来表示说的话不是事实,或者是不可能发生的情况,而是一种愿望,建议,假设的语气叫虚拟语气。一、虚拟语气在条件状语从句中的用法If条件从句主句的谓语形式条件从句的谓语形式表示过去表示将来一般过去时,be动词用were过去完成时would/could/should/might+动词原形1.一般过去时,be动词用were2.wereto+动词原形3.should+动词原形would/could/
2、should/might+动词原形表示现在would/could/should/might+have+过去分词IfIwereyou,IwouldgiveAIDSpatientahug.IfIknewit,Iwouldtellyou.1.与现在事实相反2.与过去事实相反IfIhadtakenyouradvice,Iwouldn’thavemadeamistake.Ifhehadbeenthere,itwouldn’thavehappened.Ifitshouldraintomorrow,theywouldn
3、’tgoforanouting.Ifweplanneditproperly,wecouldfinishit.Ifweweretohavethreedaysoff,wewouldenjoyaveryhappylife.3.与将来事实相反二、虚拟语气在wish后的宾语从句中的用法:1)表示现在的情况用过去式,be动词用were:IwishIwereabird.Iwishthathestayedhomenow.2)表示过去的情况用过去完成时:IwishIhadn’tmadesuchamistake.3)表示将来
4、的情况用would/could/might+动词原形:Wewishourparentswouldn’tpunishus.三、虚拟语气用在wouldrather后的宾语从句中。1)表示现在或将来的情况用过去时:Iwouldratheryoupaidmenow.Iwouldratheryoucametomorrow.2)表示过去的情况用过去完成时:Iwouldratheryouhadgonethen,too.四、在asif/asthough从句中,亦可用虚拟语气表示与事实相反。表示现在的情况,用过去时;表示过
5、去的情况,用过去完成时;表示将来的情况,用过去将来时:Shelovesthebabyasifitwereherownson.Itseemsasifheknewit.Theytalkedasiftheyhadbeenfriendsforyears.注意:若不用虚拟语气,则表示可能或真实的情形。ItlooksasifIamgoingtobebusyfordays.Itlooksasthoughitisgoingtorain.Thedoorislockedasifhehasgoneout.五、在“Itis(hi
6、gh)time+(that)…”中,that从句用过去式(be用were)或should+动词原形,should不可省略。It’shightime(that)youwent.It’s(high)timethatyoushouldgo.六、表示要求,请求、命令,建议的动词后跟that从句时,that从句要用虚拟语气,使用should+动词原形,或将should省略。常见动词:insist(坚持要,坚决要求)2.order,command(命令)3.advise(建议),suggest(建议),propose
7、(建议,提议)4.demand(要求),require(要求),request(请求,要求),desire(要求,请求)1)Wesuggest/advise/proposethatTom(should)havearest.2)HeinsistedthatI(should)bepresent.3)Thekingordered/commandedthattheprisoners(should)bekilledthenextday.4)Theyrequestedthatwe(should)sendthemtow
8、orkthere.5)Hedesired/demanded/requiredthatwe(should)seeheratonce.以上动词以及相应的名词构成的名词性从句包括主语从句,表语从句和同位语从句也要使用虚拟语气,即:(should)+动词原形如:order,command,advice,suggestion,proposal,demand,request,requirement,desire1)It’ssuggeste