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2019-2020年高三英语复习虚拟语气学案类别用法例句if引导的条件从句与现在事实相反从句动词过去式(be用were);主句动词should/would/could/might+动词原形Ifhewereherehewouldhelpus.与过去事实相反从句动词had+过去分词;主句动词should/would/could/might+have+过去分词IfIhadbeenfreeIwouldhavevisitedyou.与将来事实相反从句动词过去式/should+动词原形/were+不定式;主句动词:should/would/could/might+动词原形Ifitshouldraintomorrowwewouldnotgocamping.其他状语从句asif引导的状语从句中动词用过去式或过去完成式Theyaretalkingasiftheyhadbeenfriendsforyears.evenif/though引导的从句与现在将来/事实相反:从句动词用过去式主句动词用should/would+动词原形与过去事实相反:从句动词had+过去分词;主句动词should/would+have+过去分词Eveniftheyweretofailtheywouldn’tlosecourage.宾语从句demandsuggestorderinsist等表命令、建议、要求后的从句中动词(should)+动词原形Hesuggestedthatwenotchangeourmind.wish后的从句中分别用过去式、过去完成式和could/would+动词原形表示与现在、过去和将来情况相反IwishIcouldbeapopsinger.主语从句在Itisnecessary/important/strangethat…Itissuggested/demanded/ordered/requestedthat…等从句中,谓语动词用(should)+动词原形Itisstrangethatsuchapersonshouldbeourfriends.表语从句和同位语从句作ideaadviceorderdemandrequest等表命令、建议、要求的词的表语从句和同位语从句,其谓语动词用(should)+动词原形Myadviceisthatyoushouldfinishyourhomeworkfirst.Theideathatyoushouldgoisright.其他句型中Itistimethat…句型中动词用过去式或should+动词原形It’shightimethatweleft.wouldrather所接的从句中动词用过去式或者过去完成式Iwouldratheryoustayedathomenow.Ifonly句型中动词常用过去式或者过去完成式,表示强烈的愿望Ifonlyourdreamhadetrue!二其他要注意的事项
1.虚拟语气中出现be的过去式,只能用were
2.suggest表“暗示、表明”和insist表示“坚持认为”其后的宾语从句用陈述句语气例如Youpalefacesuggeststhatyouareill./Heinsistedthathewasright.
3.if虚拟语气条件句中如有hadshouldwere,可省略if将其提前引起倒装例如WereIyouIwouldremain./HadyoutoldmeearlierIwouldn’thavemissedit.
4.可用withbutfor代替虚拟语气条件句例如Butforyourhelp.Iwouldhavefailedtheexam.Withoutairtherewouldbenolife.asif/thoughevenif/though也可以不用虚拟,表示真实的情况例如Itlooksasifitisgoingtorain.II、实战演练用所给动词的适当形式填空---Ifhe________________warnhe________________nottakethatfood.---Luckilyhewassenttothehospitalimmediately.Whenapencilispartlyinaglassofwateritlooksasifit_________________break.Iwouldratherthey_________________nothearofthenews.IwishI_______________havearoomofmyownwhenIwasachild.Tothesurpriseofthepublictheidentificationofthecauseofsuchasimpleevent___________________takemorethanayear.Withoutairtoholdsomeofthesun’sheattheearthatnight_______________befreezingcoldtoocoldforustostay.IfIhadworkedharderatschoolI_____________________sitinafortableofficenow.Herpalefacesuggestedthatshe_____________beillandhercolleaguessuggestedthatshe_____________haveamedicalexamination.Iinsistedhe____________gotoseeadoctorbutheinsistednothing__________bewrongwithhim.Heasksthathe_______________giveanopportunitytoexplainwhyhe’srefusedtogothere.Itishightimewe_____________getdowntodiscussingthisplan.Ifitwerenotforthefactthatyou___________betoobusyIwouldaskyoutohelpmedothisrightnow.Whodoyousuggest__________________sendtoworkthereIwouldhaveeearlierbutI________________notknowthatyouwerewaitingforme.Ifit_______________raintomorrowtheoutingwouldbecancelled.。