虚拟语气常见句型

1、.1.对过去的虚拟Ifsb. had donesth,sb.wouldhave done sth2.对现在的虚拟If sb. did sth, sb.would do sth3.对将来的虚拟If sb. did sth, sb.would do sthIf sb. were to do;.sth, sb. would dosthIfsb. should dosth, sb. would dosth4.错综虚拟条件句(if+ 过去完成时 , sb. woulddo sth)If the doctor hadcome sooner last;.night, Tom would be alive t

2、oday.Ifyouhadstudied hard at that time, you would be a key university student now.5.虚拟条件句 ,从句可以省略 if,;.但谓语动词要部分倒装 .6.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/

3、urge/recomm;.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It snecessary/natural/important/vital/essential( 关键的，至关重要的 )/probable （很可能） /advisable/desira;.ble（明智的，可取的）/strange/surprising

4、/funny that sb.should do sthItisapity/ashame/nowonderthatsb.should do sth.9. wish+ 宾语从句 ,要用虚拟语气 .;.Wish 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 )10. wouldrather后的虚拟语气只有两种句型 :;.would rathersb.did sth(对现在和将来虚拟)would rather sb. had done sth (对过去虚拟 )11. If only ! ( 虚拟语气 )12. as if/ 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. haddone sth(对过去虚拟 )as if sb. would do sth (对将来虚拟 );.13. Itishigh/about time+ 虚拟语气It is high/about tim