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1、词原形might+动词原形过去式从句动词形式动词原形would+should+动词原形IwishedIcouldflytothemoon.Iwishyouwouldstayherealittlecould+动longer.虚拟语气在英语文法中有三种语气，即直述式语气(IndicativeMood)、祈使语气(ImperativeMood)和虚拟语气(SubjectiveMood)，其中前两种我们早已熟悉了，这里则不多谈了，如：Howbeautifulsheis!则是直述式语气，而Hurryup!Don'thurryup则是祈使语气。我们主要来看看虚拟语气的主要用法。虚拟
2、语气主要是用来表达一种无法实现的愿望，一种与事实相反的情况，或者将不可能实现的，或可能性很小的事实，假想为事实予以表述。这样的动词结构称为虚拟语气。它主要有三种形式，即与现在事实相反的假设，与过去事实相反的假设，与将来事实相反的假设。它们具体结构如表８－７。虚拟语气的构成种类条件句结构主句结构与现在事实相动词用过去式Should/could＋动词原形反be动词用werewould/might＋动词原形与过去事实相用had＋过去分词Should/could＋have＋过去分词反的would/might＋have＋过去分词与将来事实相动词用过去式should＋动词原形wer
3、eto加动词原形反would＋动词原形should加动词原形虚拟语气其他习惯用法简表种功用句型例句类主句谓语宾语从句谓语动词Iwishwecouldgototheseaside现在过去式today.过去had+过IwishIhadgonetothebasketball去分词match.虚表示主观wish拟愿望将来语气wouldrather现在Iwouldratheryoucametomypartytomorrow.表示虚拟状语从句比较或方Shelookedaftertheorphanasifhewerehereownchild.式表示间接的命令、建议或请求在主语从
4、句中表示与现实相过去式反与过去相had+过They'retalkingasiftheyhadbeen反去分词friendsformanyyears.asif,asshould+动词原though,形evenif从would+句与将来相动词原Themanlookedworried,asthough反形somethingwouldhappentohim.could+动词原形might+动词原形may+动词原形that,sothat,inordermight+动TurnonthelightsothatIcouldseeit词原形clearly.Iwarnedhiminord
5、erthathethat从句can+动mightkeepawayfromthedanger.词原形could+动词原形用于suggest,propose,insist,TheyrequiredthatI(should)goat宾语从句desire,once.Hesuggestedthatthemeetingdemand,(should)startearlier.request,order,command(should)+等之后动词原主句中的形主语常是：Mysuggestionisthatweshouldtellsuggestion,him.Ouronlyrequesti
6、sthatthis表语从句idea,problem(should)besettledassoonasproposal,possible.order,request等同位语从句Theyreceivedanorderthattheworkbestopped.Itis主语从句中的动词Itisnecessarythateverymembernecessary形式：remembertheserules.惊奇、惋惜、理应如此等表示祝愿或愿望其他1语法辨析(important,Itisagreatpitythatheshouldbesonatural,careless.strang
7、eItissuggestedthatweshouldget等)that⋯everythingreadybytonight.Itisapity(ashame,nowonder等)that⋯动词原Itisshould+形suggested(requested,proposed等)that⋯may+动词原形Mayyousucceed!动词原形+宾语LonglivethePeople'sRepublicofChina!Itistimethat+主语+should+动词原形It'stimethatyoushouldgohomenow.Itistim
