虚拟语气一、语气 英语动词有三种语气， 陈述语气，祈使语气和虚拟语气.二、虚拟语气的定义虚拟语气用来表示说话人的主观愿望或假想，而不表示客观存在的事实，所说的是一个条件，或与事实相反。
虚拟语气通过谓语动词的特殊形式来表示。
【即学即练】单项填空If the weather had been better ，we could have had a picnic. But it ______ all day.A. rainedB. rainsC. has rainedD. is rainingMaybe if I science, and not literature then, I would be able to give you more help.A. studiedB. would studyC. had studiedD. was studyingfor me.A. had comeB. was comingC. would comeD. would have comeBob would have helped us yester day, but he-_______A. was busyB. is busyC. had been busy.D. will be busymy advice, he wouldn't have lost his job.A. followedB. should follow C . had followed D. would follow【考点二】考查含蓄虚拟条件句这样的虚拟句不含有if 从句，而是以but for/without/or/otherwise/but that 等引导的句子代替if 从句，主句谓语动词的形式与虚拟语气的基本用法相同。
But for your help/Without your help, we couldn’t have finished the task ahead of time.【即学即练】Thank you for all your hard work last week. I don’t thi nk we_______ it without you.A. can manageB. could have managedC. could managedD. can have managedthat bitter period without your generous help.A. couldn’t have goneB. didn’t goC. wouldn’t goD. hadn’t goneinjury.A.will putB. will have putC. would putD. would have put【考点三】考查主从句时间不一致的虚拟条件句虚拟条件句中，主句和条件从句的谓语动作若不是同时发生时，虚拟语气的形式应作相应的调整。
If I had worked hard at school, I would be an engineer, too.【即学即练】It’s hard for me to imagine what I would be doing today if I ________ in love，at the age of seven，with the Melinda Cox Library in my hometown.A. wouldn’t have f allenB. had not fallenC. should fallD. were to fall【考点四】考查省略非真实条件句中的if当虚拟条件句的谓语动词含有were, should, had时,if 可以省略，将were, should, had等词置于句首。
Were he to leave today, he would get there by Friday.【即学即练】_____ fired, your health care and other benefits would not be cut off immediately.A. Would you beB. Should you beC. Could you beD. May you be【考点五】考查其他虚拟语气1、wish that+ did sth. 与现在事实相反had done sht. 与过去事实相反could/ would/ might+ do st h 与将来难以实现的愿望2、if only + did sth. 与现在或将来事实相反had done sth. 与过去事实相反3、It is (high/about) time that + sb. did sth.should do sth.4、would rather that + did sth.had done sth.5、as if + did sth.had done sth.could/might/would + do st hIt looks as if it’s going to rain.It looks as if he hadn’t had a meal for a whole week.6、had hoped/expected/meant/planned/wanted/intended to do sth.======hoped/expected/ meant/planned/wanted/intended to have done sth.【考点六】（should）+ do型虚拟语气。
Success.表示建议、要求、命令的词suggest, suggested, suggestion, advise, advisable, advised, advice,order, ordered, order recommend, recommended, recommendation, demand, demanded, propose, proposed, proposal,request, requested, request, desire, desirable, desired, desirearrange, arranged, arrangement determine, determined, determinationrequire, required, requirement ask(要求), asked,insist, insisted, insistence, command, commanded，commande.g. He advised that we should keep the door locked.He advised us to keep the door locked.He advised keeping the door locked.e.g. His advice is that we should keep the door locked.It is advised that we should keep the door locked.2. It be + important/ appropriate/ essential/ incredible/ necessary/ possible/ strangethat sb (should) do sth.e. g. It is necessary that we should keep the door locked.It is necessary (for us) to keep the door locked.随堂练习：1．I________to my cousin’s birthday party last night，but I was not available.(2013·安徽，28)A．went B．had goneC．would go D．would have gone2．It ________be the vocabulary that caused you the problem in the exercisebecause you know a lot of words. (2013·安徽，34)A．may B．couldn’tC．should D．needn’t3．I should not have laughed if I________you were serious. (2013·江苏，30) A．thought B．would thinkC．had thought D．have thought4．—Why are your eyes so red？You________have slept well last night.—Yeah，I stayed up late writing a report. (2013·四川，5)A．can’t B．mustn’tC．needn’t D．won’t5．My mom suggests that we ________ eat out for a change this weekend.(2013·陕西，12)A．should B．mightC．could D．would6．Since nobody gave him any help，he ________ have done the research on his own.(2013·大纲全国，26)A．can B．mustC．would D．need7．If we________a table earlier，we wouldn’t be standing here in a queue.(2013·北京，34)A．have booked B．bookedC．book D．had booked8．—You needn’t take an umbrella.It isn’t going to rain.—Well，I don’t know.It________do. (2013·北京，35) A．might B．needC．would D．should9．Harry is feeling uncomfortable.He________too much at the party lastnight.(2013·辽宁，31)A．could drink B．should drinkC．would have drunk D．must have drunk10．No one________ be more generous；he has a heart of gold. (2013·天津，9) A．could B．mustC．dare D．need11．If he had spent more time practising speaking English before，he________able to speak it much better now. (2013·天津，14) A．will be B．would beC．has been D．would have been12．He________sleep，although he tried to，when he got on such a hunt for an idea until he had caught it. (2013·湖南，32) A．wouldn’t B．shouldn’tC．couldn’t D．mustn’t13．I ________ myself more—it was a perfect day. (2013·浙江，3) A．shouldn’t have enjoyed B．needn’t have enjoyedC．wouldn’t have enjoyed D．couldn’t have enjoyed 14．Eye doctors recommend that a child’s first eye exam ________ at the age of six months old. (2013·浙江，8) A．was B．beC．were D．is15．—Do you think George has passed the driving test?—No.If so，he ________ his car to our college yesterday. (2013·福建，30) A．would drive B．droveC．would have driven D．had driven。