新概念英语课件NCE3-lesson22（共43张）

Lesson22ByheartI.Objectives1.bl-2.ceed3.虚拟语气Subjunctivemood虚拟语气虚拟语气用来表示说话人的主观愿望或假想，所说的是一个条件，不一定是事实，或与事实相反。1.在条件句中的应用条件句：真实条件：不用虚拟，if是如果的意思。

句型：条件从句主句

一般现在时shall/will+动词原形e.g.Ifhecomes,hewillbringhiscat.

①Ifyouleavenow,youarenevergoingtoregretit.

②Ifyouleavenow,youwillneverregretit.

在真实条件句中，主句不能用begoingto表示将来，该用shall,will.。Ifitisnight,thesundoesn’trise.表示真理时，主句谓语动词便不用shall(will)+动词原形，而直接用一般现在时的动词形式.非真实条件：用虚拟时态：可以表示过去，现在和将来的情况。基本特点:时态退后

时间条件状语从句主句与过去事实相反had+过去分词would(should,could,might)+have+过去分词与现在事实相反did/were+动词原形与将来事实相反did/wereto/should+动词原形

+动词原形①Ifyouhadworkedhard,youwouldn’thavefailedintheexam.②IfIwereabird,Icouldflyintheair.③Ifitweretoraintomorrow,themeetingwouldbeputoff.

省略if要主谓倒装①IfIwereaboy,Iwouldjointhearmy.

WereIaboy,Iwouldjointhearmy.②Ifhehadtakenmyadvice,hewouldhavesucceeded.

Hadhetakenmyadvice,hewouldhavesucceeded.1._____todothework,Ishoulddoitsomeotherday.

A.IfwereIB.IwereC.WereID.WasI2.Thevolleyballmatchwillbeputoffifit___.

A.willrainB.rainsC.rainedD.israined

3.Ifitrained,they___________(stay)athome.wouldstay

4.Wewouldbeverymuchpleasedifyou___________(come).came

5.Whatapity!Ihaven’tgotmycar.IfIhad,I_______(take)youtotheairport.havetaken

6.Wewouldanswerthequestionsifwe___________(can).could7.IfIwereyou,I__________(take)alongwalkbeforegoingtobed.wouldtake8.Ifit___lastnight,itwouldbeverycoldtoday.A.hadrained,B.rainedC.shouldrainD.weretorain混合条件句

主句与从句的动作发生在不同的时间，这时主，从句谓语动词的虚拟语气形式因时间不同而不同，这叫做混合条件句。Ifyouhadaskedhimyesterday,youwouldknowwhattodonow.从句与过去事实相反，主句与现在事实相反。

2.在宾语从句中应用在表示命令、建议、要求等一类动词后面的从句中。order,suggest,propose,require,demand,request,insist,command,insist+(should)do

e.g.Isuggestthatwe(should)holdameetingnextweek.e.g.Heinsistedthathe(should)besentthere.

如suggest,insist表“暗示、表明”、“坚持认为”时，宾语从句用陈述语气。判断对错①Youpalefacesuggeststhatyou(should)beill.

②Yourpalefacesuggeststhatyouareill.

3.在同位语从句和表语从句中应用在suggestion,proposal,idea,plan,order,advice等名词后面的表语从句、同位语从句中要用虚拟语气，即（should）+动词原形。①Myideaisthatwe(should)getmorepeopletoattendtheconference.②Imakeaproposalthatwe(should)holdameetingnextweek.4.在主语从句中应用itis+adj.，当形容词是advisable,critical，crucial,desirable,essential,imperative,important,incredible,,等,主语从句多用虚拟语气，现在时，v用should/would+动词原形(should/would经常省略)；过去时，则用should/would+havedone的形式。

Itisnecessary(important,natural,strange,etc)thatweshouldcleantheroomeveryday.Itwascrucialthatweshouldhavedonethehomework.5.在其他场合运用①ifonlyifonly“如果……就好了”。ifonly表示与现在事实相反和与过去事实相反现在事实相反，用过去时态

与过去事实相反，用过去完成时

e.g.Ifonlyyoulistenedtome.Ifonlyyouhadlistenedtome.②wishIwishIwereastallasyou.我希望和你一样高。Hewishedhehadn'tsaidthat.他希望他没讲那样的话。Iwishitwouldraintomorrow.我希望明天下雨就好了。

③Itis(high)timethat

Itis(high)timethat过去式/