PAGEPAGE-4-虚拟语气虚拟语气是一种特殊的动词形式，用来表示说话人所说的话不是事实，而是一种假设、愿望、怀疑或推测。虚拟条件句与现在事实不一致，其句型为：If+主语＋did，主语＋should（could,would,或might）＋do.IfIwereyou,Iwouldstudyhard.Ifitrained,Iwouldnotbeherenow.IfIwereinyourposition,Iwouldmarryher.与过去事实不一致，句型为：If+主语＋had＋done，主语＋should（could,would,或might）＋have＋done.Ifthedoctorhadcomelastnight,theboywouldhavebeensaved.Ifthedoctorhadcomelastnight,theboywouldbesaved.与将来事实不一致，句型为：If+主语+＋do，主语＋should（could，would,或might）＋do.Ifitshouldraintomorrow,wewouldstayathome.IfIweretogotothemoononeday,Icouldseeitwithmyowneyes.Ifyoumissedthefilmtonight,youwouldfeelsorry.注意1.If条件句中绝对不可出现“would”。2.有时把含有助动词、情态动词、be或have的虚拟条件句中连词if省略，将had,should,were等词提到主语之前倒装。Hadthedoctorcomelastnight,theboywouldhavesaved.WereItogotothemoononeday,Iwouldseeitwithmyowneyes.Shoulditraintomorrow,wewouldstayathome.3.根据句中的时间状语，有时可能出现“混合虚拟”的情况，即主句可能是现在的情况，条件句也许是发生在过去的情况，但都是遵守上述句型。混合虚拟条件句不能倒装。名词性从句中的虚拟语气在表示命令、建议要求、惊叹、感叹、愿望时的名词性从句中需用虚拟语气，具体类型有：1.遇到suggest,suggestion,insist,insistence,order,demand,request,command,propose,proposal,desire,plan,idea时，从句中用主语＋（should）＋do。MotherinsistedthatJohngotobedat9o’clock.Wesuggestedthatthemeetingshouldnotbeheld.Thesuggestionthathebeinvitedwasrejected.Itwasrequiredthatthecropsshouldbeharvestedatonce.Thatistheirdemandthattheirwagesbeincreased.注意当insist意为“坚称说”，suggest意为“暗示，表明”时，不用虚拟语气。2.①Itis+natural/necessary/important/surprising/strange/funny/extraordinary/suggested/proposed/requested/ordered+that+主语+（should）+do②Itis+apity/ashame/nowonder/anhonor+that+主语+（should）+do如：Itisstrangethathe(should)gohimself.3.主语+be+sorry/surprised/disappointed(表情感的词)+that+主语+shoulddo/havedone.(这里的should意为“竟然”)I’msorrythatthingsshouldhavecometothis.4.It’s(high)timethat+主语＋should＋do/主语＋did，It’stimethatyouwenttoschool.=It’stimethatyoushouldgotoschool.5.wish后的宾语从句与现在愿望不一致:主语＋did；IwishIwereyou.与过去愿望不一致:主语＋haddone；IwishIhadvisitedthewhiteHousewhenIwasinthestates.与未来愿望不一致:主语＋would(could)＋do。IwishIcouldmetyoutomorrowattheparty.wish的感叹