英語語法(虛擬式)

Task1.Whatissubjunctivemood?2.Howmanykindsdoyouknow?Revision1.Whatisvoice?2.Thedifferencebetweenpassivevoiceandactivevoice3.Interchangebetweenpassivevoiceandactivevoice4.Inwhichcasescan’tweusepassivevoice5.Activeexpressionsofpassivevoice6.PassivepatternsSubjunctiveMood非真實語氣的表達式Time1）與現(xiàn)在事實相反的虛擬語氣

If+were/did….woulddoEg.IfIwereyou,Iwouldgowithhim.2）與過去事實相反的虛擬語氣

If+haddone…wouldhavedoneEg.IfIhadworkedhard,Iwouldhavepassedtheexam.3）與將來事實相反的虛擬語氣If+should(wereto)+do…woulddoEg.Ifheweretogotomorrow,Iwouldgo.Beandwere動詞與時態(tài)

Be型虛擬式是指不管人稱動詞一律以原形出現(xiàn)。Were型虛擬式動詞以Were出現(xiàn)。Be型虛擬式1.用在表示命令、建議等動詞動詞、名詞that分句中(order,suggest,demand…)Eg.Isuggestthatwe(should)startatonce.Thesuggestionthatwe(should)startatonceisnotaccepted.Heorderedthatallthebooksbesentatonce.Youradvicethatthemotionnotbeabolishedisright.2.用在It+Adj.+that句型中(essential,important,necessary…)Eg.Itisimportantthathegetthereontime.3.用于if,though等表示推測、讓步等句型中Eg.Ifhebefoundguilty,Johnshallhavetherightofappeal.4.用于公式化用語中Eg.Godblessyou!Were型虛擬式Were型虛擬式用于if,onlyif,though非真實條件句中Eg.IfonlyIwerenotsonervous.用于某些名詞性分句中(wish,wouldrather…)Eg.IwishIwereabird.AttentionPlease:1.MixedSubjunctiveMoodIfithadbeenraininglastnight,Iwouldbewetnow.2.VerbVariationIinsisthe(should)beinvitedtotheparty.invitehertotheparty.