独立主格结构常见类型及其用法一、独立主格结构的构成形式1、逻辑主语+V-ing这种构成形式内部的逻辑主语是分词的动作执行者，分词表示的动作不是整句主语发出的动作，而是其逻辑主语发出的动作。如：1).________nobus,wehadtowalkhome.A.TherebeingB.BeingC.HavingbeenD.Therewas2)_______nobus,wehadtowalkhome.A.AstherebeingB.AstherewasC.BeingD.Therewas3)_______Sunday,thelibrarydoesn'topen.A.BeingB.TherebeingC.ItbeingD.Havingbeen4)______Sunday,thelibrarydoesn'topen.A.AsitbeingB.BeingC.ItisD.Asitis2、逻辑主语+V-ed该构成形式内部的逻辑主语是分词的动作承受者。1)_________,thetrainstarted.A.ThesignalgivenB.GivingthesignalB.ThesignalbeinggivenD.Thesignalgiving2)__________,thetrainstarted.A.AfterhavinggiventhesignalB.AfterthesignalgivenC.GivingthesignalD.Afterthesignalwasgiven3、逻辑主语+形容词（副词）该结构相当于一个未带动词的“主—系—表”结构。如：1)___________,thepatientcanleavethehospital.A.BetterconditionsB.ConditionsbetterC.ConditionsarebetterD.Beingbetterconditions2)_________,thepatientcanleavethehospital.A.IfbetterconditionsB.IfconditionsbetterC.IfconditionsarebetterD.Beingbetterconditions3._____,we’dliketogoouting.A.BeingSundayB.SundayOKC.SundayisOKD.IfSundayOK4.______,we’dliketogoouting.A.IfSundayisOKB.SundaybeingOKC.SundayOKD.A,BandC5._____,youcanwaitawhile.A.TheplaybeingstillonB.TheplaystillonCBeingstillontheplayD.AandB在下列两种情况下，独立主格结构中的being（或havingbeen）不能省略。二、独立主格结构在整句中可作以下成分：1、原因状语该结构在句中作原因状语时相当于一个原因状语从句。如：1).________nobus,wehadtowalkhome.A.TherebeingB.AstherewasC.TherewasD.AandB2)._________Sunday,thelibrarydoesn'topen.A.ItbeingB.AsitisC.BeingD.AandB3._____,Ihadtoaskfortwodays’leave.A.MotherbeingillB.MotherillC.AsmotherwasillD.A,BandC4.________,wehavetoworklateintothenight.A.TheexamnearB.TheexambeingnearC.AstheexamisnearD.A,BandC2、时间状语独立主格结构作时间状语时相当于一个由when,assoonas,after等引导的时间状语从句。如：1.________,thetrainstarted.A.ThesignalgivenB.AfterthesignalwasgivenC.GiventhesignalD.AandB2.________,thetextbecameeasierforustolearn.NewwordsexplainedB.WhennewwordswereexplainedC.WhenteacherexplainednewwordsD.alltheaboveD3、条件状语1.______moretime,heissuretofinishhistestpaper