【正文】 / 一般過去式 / should+動詞原型 ? 結(jié)果主句： would (should) + 動詞原型 If she were to marry me, I would be the happiest man in the world. If it rained tomorrow, we wouldn’t play basketball. If he should leave, we whould be sad. 總結(jié)： 總結(jié)： If 從句 主句 與現(xiàn)在事實(shí) 相反 一般過去時 / were Would/should/could/might+ 動原 與過去事實(shí) 相反 過去完成時 Would/should/could/might + have +過去分詞 與將來事實(shí)相反或?qū)聿豢煽赡軐?shí)現(xiàn) 一般過去時或 should/ were to + 動原 Would/should/could/might+ 動原 ? 表示要求、建議、命令等動詞 : suggest, propose, insist, prefer, order, mand, advise, desire, remend, require, intend, desire, request, deserve, demand, determine, arrange, beg, ? 句子用虛擬語氣，即（ should ） +動詞原形。 衍生句型： It is + Ved + that從句： It is suggested that… （ should)+動詞原形 It is insisted that… It is requested that … It is remended that… It is proposed that … It is required that… It is advised that… It is ordered that… ? It is + adj.+ that從句： It is important that… should + 動詞原形 It is essential that… It is vital that… It is necessary that… ? 表示“請求、建議”等動詞構(gòu)成的名詞后面的同位語從句，用虛擬語氣。 suggestion, advice, decision, desire, order, idea, proposal, request, resolution, request, remendation, requirement, desire is that he (should) visit the Great Wall someday. made the suggestion that such device (should) be designed and produced without delay. 虛擬語氣的特殊句型： 1. It is high time + that 從句 It is about time + that 從句 It is time + that 從句 “該是 ……的時間了”，從句中用一般過去時。 It is time you went to bed. it is about time you made up your mind. 虛擬語氣的特殊句型： 2. would rather + that 從句 had rather + that 從句 would sooner + that 從句 “ 寧愿做什么”，從句用一般過去時或過去完成時。 ? Jean’s uncle insists ____ in this hotel. ? A) he stays ? B) that he not stay ? C) not to stay ? D) staying not 2. We must stop now. It is time we ____ home. ? A) have gone B) are going ? C) went D) will go ? ____ your advice yesterday, I would have missed the train. ? A) Had I not taken ? B) If I did not take ? C) If I have not taken ? D) I did not take ? It was essential that the application form ____ back before the deadline. ? A)must be sent B) be sent ? C) would be sent D) were sent ? Without electronic puter, much of today’s advanced technology ___. ? A) haven’t been achieved ? B) hadn’t been achieved ? C) wouldn’t be achieved ? D) wouldn’t have been achieved 九、定語從句 ? 只用 that不用 which的情況： ? 當(dāng)先行詞是 all, something, nothing 等不定代詞；或先行詞前有 first, last, only, few, much, some, any, no等修飾時；或先行詞前有形容詞最高級修飾時。 I have explained everything (that) I can do to you. This is the most beautiful campus (that) I’ve ever been to. ? 先行詞也可以是整個句子。一般用 which或as 來引導(dǎo)。 Which 可以做主語或賓語， as 一般只做主語。其區(qū)別： which只能置于句中或句末， as 比較靈活。 Water consists of hydrogen and oxygen, which (as) is known to all. As had been expected, he finished first in decathlon(十項全能 ) at that Olympic Games. ? 關(guān)系代詞可以做介詞的賓語， that 不可以，只能是 which 或 whom。 This is the ring on which she spent $1,000. I’ll never fet the mountain village where (in which) I spent my childhood. I don’t know the reason why (for which) he did that. ? Mr. Smith, from _____ I have learned a lot, is a famous scientist. Light is the fast thing in the world, the speed of ______ is 300 000 kilometers per second. The sun heats the earth, ____ is very important to us.