虚拟语气常见句型.doc

1. 对过去的虚拟If sb. had done sth, sb. would have done sth 2. 对现在的虚拟If sb. did sth, sb. would do sth 3. 对将来的虚拟If sb. did sth, sb. would do sthIf sb. were to do sth, sb. would do sthIf sb. should do sth, sb. would do sth 4. 错综虚拟条件句(if+过去完成时, sb. would do sth)If the doctor had come sooner last night, Tom would be alive today. If you had studied 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/advise/command/order/urge/recommend/require/request/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/natural/important/vital/essential(关键的，至关重要的)/probable（很可能）/advisable/desirable（明智的，可取的）/strange/surprising/funny that sb. should do sth It is a pity/ a shame/ no wonder that sb. 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. 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)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. had done sth(对过去虚拟)as if sb. would do sth (对将来虚拟)13. It is high/about time+虚拟语气It is high/about ti