虚拟语气常见句型

1、对过去的虚拟If sb. had done sth, sb. would have done sth对现在的虚拟 If sb. did sth, sb. would do sth对将来的虚拟 If sb. did sth, sb. would do sthIf sb. were to dosth, sb. would do sthIf sb. should do sth, sb. would do sth错综虚拟条件 句（if+过去完成 时,sb. would do sth）If the doctor had come sooner lastnight, Tom would be alive

2、today.If you had studied hard at that time, you would be a key university student now.虚拟条件句,从 句可以省略if,但谓语动词要部分倒装含蓄虚拟条件句标志性词汇:without （如果 没有）,but for（要不是）,otherwise/or（否则）*if条件句可以与 without/but for.互相转换，意 思相同。7.表示建议要求 命令等动词以 及相应的名词 引导的名词性 从句，通常跟 should 结构.Insist/suggest/ad vise/command/or der/urge/rec

3、omm end/require/requ est/propose that sb. should do sth *insist 做“认 为”讲时,相当于 think, 不用 should 结构.Suggest 做“暗 示,表明”讲时，相 当于imply,不用 should 结构.8.常见的should 结构句型Its necessary/natura lfimportant/vitai/ essential（天键 的，至关重要勒/probable （很可 能）/修修孳+qspi6.ips op ppoqs qs mp japuoM on pnieqs e e si ii q;sopjinoiK

4、,s|jdjiis再皿】切 kw 也陶晶既）叩iWish that sb. had done sth （对过去虚拟） Wish that sb. did sth （对现在虚拟） Wish that sb. would do sth （对将来虚拟）would rather 后的虚拟语气 只有两种句型:would rather sb. did sth（对现在和将来虚 拟）would rather sb.had done sth（对过去虚拟）If only !（虚拟语气）as f as though如果表;.示与事实相反 的情况，要用虚 拟语气.as if sb. did sth（对现在虚拟）.as if sb. had done sth（对过去虚拟）.as if sb. would do sth（对将来虚拟）isItishigh/abouttime+虚拟语气It is high/about time t