英语语法虚拟式ppt课件.ppt

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1、Task1.Whatissubjunctivemood?2.Howmanykindsdoyouknow?1Revision1.Whatisvoice?2.Thedifferencebetweenpassivevoiceandactivevoice3.Interchangebetweenpassivevoiceandactivevoice4.Inwhichcasescan’tweusepassivevoice5.Activeexpressionsofpassivevoice6.Passivepatterns2Subjunct

2、iveMood非真实语气的表达式3Time1）与现在事实相反的虚拟语气If+were/did….woulddoEg.IfIwereyou,Iwouldgowithhim.2）与过去事实相反的虚拟语气If+haddone…wouldhavedoneEg.IfIhadworkedhard,Iwouldhavepassedtheexam.3）与将来事实相反的虚拟语气If+should(wereto)+do…woulddoEg.Ifheweretogotomorrow,Iwouldgo.4Beandwere动词与时态Be型虚拟式是

3、指不管人称动词一律以原形出现。Were型虚拟式动词以Were出现。5Be型虚拟式1.用在表示命令、建议等动词动词、名词that分句中(order,suggest,demand…)Eg.Isuggestthatwe(should)startatonce.Thesuggestionthatwe(should)startatonceisnotaccepted.Heorderedthatallthebooksbesentatonce.Youradvicethatthemotionnotbeabolishedisright.62.用

4、在It+Adj.+that句型中(essential,important,necessary…)Eg.Itisimportantthathegetthereontime.3.用于if,though等表示推测、让步　等句型中Eg.Ifhebefoundguilty,Johnshallhavetherightofappeal.4.用于公式化用语中Eg.Godblessyou!7Were型虚拟式Were型虚拟式用于if,onlyif,though非真实条件句中Eg.IfonlyIwerenotsonervous.用于某些名词性分

5、句中(wish,wouldrather…)Eg.IwishIwereabird.8AttentionPlease:1.MixedSubjunctiveMoodIfithadbeenraininglastnight,Iwouldbewetnow.2.VerbVariationIinsisthe(should)beinvitedtotheparty.invitehertotheparty.notbeinvitedtotheparty.情态助动词.ppt9Thankyouforyourlistening10