IReal conditional:句式为（if + 从句，+主句）
1. 主现从现（rule）If the moon goes near the earth, the tide goes high. 2. 主将从现If it stops raining later this afternoon, we will eat out. 3. 主祈从现。If you are not likely to be in town, please let me know.
IIUnreal conditional-----背完这些句子你就无敌了~ 1. A if条件句 与现在事实相反 与过去事实 与将来相反 did（be动词用were） If + 主语 + had done did/were to do/ should do 主句 主语 + should/ would /could/ might do 主语 + should/ would /could/ might have done 主语 + should/ would /could/ might do (1). If you were a teardrop in my eye. For fear of losing you, I would never cry. (2)If I had not cut down my hair,I would have looked more beautiful. (3)If I should/were to have Taylor Swift’s voice, I would sing from morning to night. B.If 省略的倒装：
(1)句1=Were I a teardrop in my eye, For fear of losing you, I would never cry. (2)句3= Should I have Taylor Swift’s voice, I would sing from morning to night.
或者Were I to have If I should/were to/had Taylor Swift’s voice, I would sing from morning to night.
C.错综时间（看主句的时间状语） (1)If you had not played basketball in the rain,you wouldn’t get a heavy cold now. (2)--- The weather has been hot and dry.
--- Yes.If ithad rained even a drop,things would be much better now!
2含蓄条件句（without,or, otherwise,but for） （1）Without you? I’d be a soul without a purpose. Without you? I would be an emotion without a heart. I’m a face without expression, a heart with no beat. Without you by my side, I’m just a flame without the heat. 没有你？我将是一个没有目的的灵魂； 没有你？我的情感将没有了根基；
我将是一张没有表情的脸，一颗停止跳动的心； 没有你在我身边，我只是一束没有热量的火焰。 （2）With more money, I could help more people in need.
（3） But for the help from the UN, those women would not have been able to set up their shop. (4) I was ill that day, otherwise I would have taken part in the sports meet
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did （be用were）（与现在事实相反） 3.wish + 宾语从句的谓语动词用 had done （与过去事实相反） would /could /should /might do （与将来事实相反） （1）I wish I had a ticket to the Christmas Party.(现在) （2）I wish I had not said those stupid words to that girl .(过去)
（3）.Wish that all lovers in the world could be couples in the end愿天下有情人终成眷属（将来） （4）. How I wish every family had a large house with a beautiful garden.（现在）
4. 用于表示建议、要求、命令等词后的句中，常见动词有：demand、require、 insist、suggest、advise、propose、order，recommend等，从句中谓语动词用：（should） + do （1）we insists that EQ (should)be more important than IQ. (2)The teacher suggests that homework be finished on time.
（3）It was requested that the play be put on again（required/requested/demanded...） (4)The suggestion that student should not be a study machine is welcomed by all.
注意：*The smile on his face suggested that he was satisfied with our work.（暗示） *The man insisted that he never stole the money.（坚持说一个事实）
did （be用were）（与现在或将来事实相反）
5. would rather + 宾语从句 had done （与过去事实相反）
(1)I would rather he came tomorrow than today. (2)I would rather you hadn’t told me about the news.
6.as if/though
did（be用were）（与现在事实相反）
从句谓语动词用 had done （与过去事实相反） would do （与将来事实相反） eg: (1) He speaks to us as if he had been to Auckland.
(2) She speaks English so fluently as if she were a native speaker.
(3)He picked up his hat,put on it and walked away as if nothing had happened. did（be用were）（与现在事实相反） 7.If only + 感叹句中谓语动词用
had done （与过去事实相反） If only there were a kind of medicine which could cure all diseases. If only I had not lied to my parents.
8.It is high time that you should make up for the time we have wasted.(注意：此句型中should不能省略哦)
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= It is high time that you made up for the time we have wasted.
9.句型It suggested/ proposed/ necessary/ important/ strange/ natural/ a pity + that+ (should) do (1).It’s necessary that we (should) have a talk now.
(2) It is important that we (should) make good preparations for the ceremony.
含有虚拟语气的经典诗歌： If you were a teardrop; In my eye, For fear of losing you, I would never cry.
And if the golden sun, Should cease to shine its light, Just one smile from you ,Would make my whole world bright. 译文：
如果你是我眼里的一滴泪，为了不失去你，我将永不哭泣；
如果金色的阳光停止了它耀眼的光芒，你的一个微笑将照亮我的整个世界。
If I were a boy
Nothing is gonna change my love for you The day you went away if
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