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1、If引导的条件句、虚拟语气,If 真实条件句,表示实现的可能性非常大 1.如果我有时间，我就去看你。 If I have time, I will come over to see you. 2. 如果天气允许的话，我就去露营。 If weather permits, I will go camping. 3.如果我不完成作业，老师会生气。 If I dont finish my homework, the teacher will be angry. 规律：主将从现,如果上天能够再给我一次机会,我会对那个女孩说：“我爱你” 。,If I had one more chance, I woul
2、d say to the girl “I love you”.,虚拟语气定义： 用来表示说的话不是事实，或者是不可能发生的情况，而是一种愿望，建议，假设的语气叫虚拟语气。,If I had one more chance, I would go to university again.,if引导的虚拟条件句,If she invited me, I would go to the party.,假如她邀请我参加聚会，我就去。,If she had invited me yesterday, I would have gone to the party.,假如她昨天邀请我参加聚会，我就去了。,I
3、f she should invite me tomorrow, I would go to the part,如果她明天邀请我参加聚会，我会去的。,1. 对现在的虚拟,一、if引导的虚拟语气的三种情况,If I were you, I would/ could/ should/ might do that.,If I had money, I would/ could/ should/ might buy that house.,2. 对过去的虚拟,If I had known that yesterday, I would/ could/ should/ might have told y
4、ou.,If she hadnt eaten so much candy, she wouldnt have had her teeth pulled out.,3. 与将来事实相反的假设,If it should rain, the crops should/ would/ could/ might be saved.,If I,became were to become should become,a scientist in the future,对将来情况的虚拟：,I would try to find a cure for cancer.,Fill in the blanks,wou
5、ld/could/should/might +动词原形,动词过去式 (be动词用were),had+过去分词,would/could/should/might + have+过去分词,would/could/should/might +动词原形,1. 动词过去式 2. should+动词原形 3. were to+动词原形,1.If the world-war broke out again, what _(happen) to our people on earth? 2. What _(happen) if you _ (get up) too late tomorrow? 3. If I
6、 _ (meet) you yesterday, we _ (go) to the concert together.,were to get up/ got up/ should get up,would happen,had met,would have gone,would happen,对现在假设,对将来假设,对过去假设,1. If I _ a map, I would lend it to you. a. have b. had c. should d. would 2. Alan _ the party if he had gone to London. a. would have
7、 missed b. had missed c. would miss d. missed,If 虚拟条件句有had, should, were时，可以将if 省略，把had, should, were提到主语前。 If I were you, I would devote myself to study. Were I you, I would devote myself to study. If I had worked hard, I would have succeed. Had I worked hard, I would have succeed.,If you should ha
8、ve difficulty, you could come to my office. Should you have difficulty, you could come to my office.,1. The teacher suggested that we (should) have a rest. 2. It is suggested that he (should) come to see us.,表语从句,宾语从句,3. My suggestion is that we (should) read English newspapers to improve our English.,主语从句,3. My suggestion is that we (should) read English newspapers is very important.,同位语从句,
