虚拟语气虚拟语气虚拟语气表示说话人的愿望/假设/猜测/或建议，而不表示客观存在的事实。虚拟语气通过谓语动词的特殊形式来表示。1.虚拟语气用于条件状语从句。（1）与现在事实相反。IfIhadtime,Iwouldgotothecinemawithyou.（2）与过去事实相反。Ifhehadcaughtthefirstbusthismorning,hewouldnothavebeenlateforclass.（3）与将来事实相反。Ifitwereto/shouldraintomorrow,themeetingwouldbeputoff.条件从句中的谓语动词的形式主句中的谓语动词的形式与过去事实相反had+过去分词should/would+have+过去分词与现在事实相反过去式should/would+动词原形与将来事实相反1.过去式should/would+动词原形2.should+动词原形should/would+动词原形3.wereto+动词原形Should/would+动词原形虚拟语气用于条件状语从句虚拟语气用于条件状语从句注意：主句中的should通常用于第一人称，would可用于任何人称，同时也可根据意思用情态动词could/might等代替should/would。(4)有时候，条件从句表示的动作和主句表示的动作，发生的时间是不一致的（如一个是过去发生的，一个是现在发生的）。这时，动词的形式要根据它所表示的时间来调整。-(错综时间条件句)1.Iftheweatherhadbeenmorefavourable,thecropswouldbegrowingstillbetter.2.Ifyouwereinbetterhealth,wewouldhaveallowedyoutojointheminthework.3.Ifwehadn’tgoteverythingreadybynow,weshouldbehavingaterribletimetomorrow(5)以上句型可以转换成下列形式:A.若if从句中有were/had/should，可把它们倒装放到主语之前，省略if.句式:were/had/should+主语+其它成分.WereIinschoolagain,Iwouldworkharder.Hadyoubeenhereearlier,youwouldhaveseenhim.Shouldtherebeameetingtomorrow,Iwouldcome.B.用介词短语代替条件状语从句.例如:Withoutair,therewouldbenolivingthings.Iwouldnothavesucceededbutforyourhelp.2.虚拟语气用于宾语从句（1）“wish+宾语从句”表示不能实现的愿望，“可惜…/悔不该…/但愿…”从句中谓语动词形式：与现在事实相反：动词过去式与过去事实相反:had+done或could(would)+have+done与将来事实相反：could/would+do例如：.Iwishyoutoldmeearlier.Wewishwehadarrivedtheretwohoursearlier.Iwishwecouldgototheseasidetoday/tomorrow(2)虚拟语气在动词:insist（坚持）/demand/desire/request/require/order/propose/command/ask/advise/prefer/suggest（建议）arrange等后面的宾语从句中，用“（should）+动词原形”。如：Thedoctororderedthatshe(should)stayinbedforafewdays.Theydemandedthattheblackpeople(should)betreatedaswellaswhitepeople.Iinsistedthatyougivememoneyback.Mikeinsistedthathehadneverstolenanything.Thegirlinsistedthatshegavemethemoneytheotherday.Isuggestedthatthemeeting(should)beputoff.Herpalefacesuggestedthatshewasill.3.虚拟语气用于表语从句/同位语从句.作advice/idea/order/demand/plan/proposal/suggestion/request等后面的宾语从句和同位语从句，其谓语动词要用虚拟语气的结构“（should)+动词原形”.例如：Weallagreedtohissuggestionthatwe(should)gotoBeijingforsightseeing.Myideaisthathe(should)doexercisesfirst.4。虚拟语气用于以asif/asthough引导的表语从句或状语从句.谓语动词的形式有三种：asif/asthough引导的表语/状语从句从句中谓语动词的形式1.从句表示与现在事实相反谓语动词用一般过去式2.从句表示与过去事实相反had+过去分词3.从句表示与将来事实相反would/might/could+动词原形例如：HelookedatmeasifIweremad.HespeaksEnglishsofluentlyasifhehadstudiedEnglishinEngland.Itlooksasifitmightrain.但asif/asthough后的从句也常用陈述语气，这是因为从句中的情况往往是可能发生的或可能被设想为真实的。例如：Itlooksasifoursideisgoingtowin.5.虚拟语气用于主语从句。在主语从句中，谓语动词的虚拟语气结构用“should+动词原形”的结构，...
