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1、4四、虚拟语气的几种特殊用法省掉if的条件从句结构：Hadyouaskedme,Iwouldhavetoldyou. (=Ifyouhadaskedme,…)2.有时虚拟条件不用条件从句而用不定式、分词、介词、名词、连接词或定语从句来表示，如：Atruefriendwouldnotdosuchathing.(=Ifhewereatruefriend,he...)(=Iftherewerenowater,…)(=Ifyouhadn’thelpedme,…)例句：Withoutyouradvice,ourmeetingwouldn’thavebeensosuccessfull
2、y.[过去] （=>可转换为：Iftherehadn’tbeenyouradvice,we…） Yournotesarealmostillegible(难以辨认的).Notestypedoutwouldbealoteasiertoread.[将来] (=>可转换为：Ifthenoteshadbeentypedout,itwouldbealoteasiertoread.) IshouldhavegonetoseeDr.Smithandhemighthavecuredmeofthedisease.[过去] (=>可转换为：IfhehavegonetoseeDr.Smith,he.
3、.) 3. 有时条件从句中的动作和结果从句中的动作发生的时间不一致，如：Ifhehadfollowedthedoctor’sadvice,hewouldbequiteallrightnow.IfIwereyou,Iwouldhavegonehome.五、虚拟语气的其他用法1、Suggest,advise等动词之后宾语从句须用虚拟语气，其句子结构如下：suggest,advise,recommend,demand,require,insist,urge,request,order, +that…(should)+动词原形devide,ask,move,propo
4、se等注意：在此结构中that不可省略；should省不省均可。Hesuggestedthatthey(should)stopsmoking.上述动词的名词形式出现时，that引导的从句仍用虚拟语气。Hemadearequestthatthey(should)stopsmoking.如果that引导的从句所表达的内容是事实，也可用陈述语气。Heinsiststhatheisright.2、Itis(was)+necessary,apity等+that引导的从句须用虚拟语气，其句子结构如下： imperative,advisable,
5、 动词完成式Itis(was)+important,natural,necessary,+that…(should)+essential,strange,等 动词原形 4Itisimportantthatyou(should)followthedoctor’sorders.Itisrightthatyoushouldhavedoneyourhomework.3、wish的用法动词过去式或were—与现在事实相反主语+wish(that)+主语+ 动词过去完成式—与过去事实相反助动词过去试+动词原形—与将
6、来事实相反IwishIwereapopsinger. (=IamsorryIamnotapopsinger..)IwishIhadneverstoppedteaching. (=IamsorryIstoppedteaching.)Iwishthey’dletusgetsomesleep.注意：wish与hope接宾语从句的区别在于：hope表示一般可以实现的希望，宾语从句用陈述语气。wish表示很难或不大可能实现的希望,宾语从句用虚拟语气。试比较：（1）Wehopetheywillcome,(Wedon’tknowiftheycancome.)（2）Wewishthey
7、couldcome,(Weknowtheyarenotcoming.)4、asif,asthough,would(had)rather(that)引导的从句须用虚拟语气，如： Heactsasifnothinghadhappened.Iwouldratheryoudidn’ttellhim.5、It’s(high)timethat…+动词过去式或should+动词原形，如：It’stime(that)youhadahaircut.It’shightime(that)wetooksomeaction.
