Unit 2 虚拟语气：虚拟语气： 1. 在 suggest, insist, require 等某些表示建议、命令、要求、想法等动词的宾语从句中，从 句的谓语必须用虚拟语气结构：“should + 动词原形”这类动词及相应的名词有：suggest (suggestion), propose (proposal), recommend (recommendation), advise (advice), order (order), command (command), direct (direction), demand (demand), request (request), require (requirement0, desire (desire), insist (insistence), decide (decision), agree (agreement), prefer (preference), urge (urge), resolve (resolution)2. 虚拟语气也用在 would rather, would sooner, had rather, would just soon 等表示“宁愿”意 思的 that 从句中。
注意：would rather 等结构后还可跟不带 to 的动词不定式，表示 would prefer to （更愿意） 其基本形式是：would rather + (not) +动词原形 eg: Would you rather stay here or go home?3. 在“it is (was) +adj. +that” 引出的实际主语从句中，虚拟语气一般表示建议、惊奇等情感常见的这类形容词有： important, necessary, essential, advisable, anxious, appropriate, compulsory, crucial, desirable, eager, imperative, obligatory, preferable, proper, urgent, vital 等 其基本形式是：it is +adj+that+do4. 在”wish +that 宾语从句“ 中，动词 wish (wished)后面 that 接宾语从句，表达不可能实现 或与事实相反的情况时，从句谓语结构要用虚拟语气5. 在 if 非真实条件状语从句中，非真实条件状语从句中的虚拟语气表示对某种与事实相 反或难以实现的情况的假设。
6. 在 lest, in case that, for fear that 等引导的状语从句中要用虚拟语气，其基本结构为动词过 去式或“should +动词原形”7. 在 as if / as though 引导的状语从句中，如表示与事实相反的情况也要用虚拟语气8. 在 it is (about / high) time 后的 that 从句中，谓语动词常用过去式表示虚拟语气，意思是 建议现在该做什么了It is time +did9. if only 引导的感叹句用虚拟语气表示“但愿…” “要是…就好了”的意思，或是一时难以 实现的愿望10. 虚拟语气有时还用在介词、介词短语以及某些转承词引出的表示隐含虚拟条件的句型 中，这些词或短语有：with, without, but for, but, or, otherwise 等11. 虚拟语气还同在其他一些结构中，比如在让步状语从句中，当句子的意思与事实相反 或表示可能性极小时，用虚拟语气 常用的让步连词有：though, although, if, even though, even if, whatever, however, whoever 等。
1.Mike’s uncle insists ____ in his hotel. A. staying not B. not to stay C. that he would not stay D. that he not stay2.We desire that the tour leader _________ us immediately of any change in plans. A. inform B. informed C. informs D. has informed3.Frankly speaking, I’d rather you ______ anything about it for the time being. A. didn’t do B. haven’t done C. don’t do D. have done4.I don’t think it advisable that Tom _______ to the job since he has no experience. A. is assigned B. will be assigned C. be assigned D. has been assigned5.I wish I _________ longer this morning, but I had to get up and come to class. A. could have slept B. slept C. might have slept D. have slept6.If the whole operation ________ beforehand, a great deal of time and money would have been lost. A. was not planned B. has not been planned C. had not been planned D. were not planned7.Jean doesn’t want to work right away because she thinks that if she ______ a job she probably wouldn’t be able to see her friends very often. A. has to get B. were to get C. had got D. could have got8.He paused, afraid lest he ___has said_ too much (say)9.This device operated as though it _________. A. must have been repaired B. should be repaired C. had been repaired D. might be repaired10. It’s already 5 o’clock now. Don’t you think it’s about time _________? A. we are going home B. we go home C. we went home D. we can go home11. Look at the terrible situation I am in! If only I ____________ your advice. A. follow B. would follow C. had followed D. have followed12. He must have an accident, or he __________ then. A. would have been here B. had to be here C. should be here D. would be here13. ____ a hundred times, as many times I should fail. A. Though I were trying B. Were I trying C. Were I to try D. Though I try14. Even if I _______ (know) his plan, I could not have prevented the accident.15. Though he ______ (study) ten years more, he could not be wiser. Key: 1-5: DAACA 6-10: CB / (should) say / CC 11-15: CAC/ had known, were to study。