1、Section Grammar虚拟语气()语 境 自 主 领 悟先观察原句后自主感悟1.If I were you，I should try my best to go to college.2.Were I you，I should try my best to go to college.3.If he had gone to the party last night，everything would have changed.4.Had he gone to the party last night，everything would have changed.5.If it were t
2、o be sunny tomorrow，we would go out for a picnic.6.Were it to be sunny tomorrow，we would go out for a picnic.1.1、2句表示与现在事实相反的假设。2.3、4句表示与过去事实相反的假设。3.5、6句表示与将来事实相反的假设。4.句1、2、3、4、5、6句的句意分别相同吗？相同。5.句2、4、6共同的特点是：省略if后的倒装句。一、非真实(虚拟)条件句中的虚拟语气1与现在事实相反条件从句主句did(be多用were，非正式文体中也可用was)would/should/could/might
3、动词原形If I were you，I should accept the job.如果我是你，我会接受这份工作。If I had time，I would go there.如果我有空，我就去那儿。2与过去事实相反条件从句主句had donewould/should/could/mighthave doneIf you had come earlier，you could/would have met the star.如果你早点来，你就会见到那位明星了。If he had seen you yesterday，he would have returned you your book.如果他
4、昨天见到你，他就会还给你书的。3与将来事实相反条件从句主句did/should do/were to dowould/should/could/might动词原形If his flight should be delayed/were to be delayed/were delayed，we would fail to meet him.万一他的航班被延误了，我们就接不到他了。If these icebergs should melt at the same time，we would drown.如果这些冰山同时融化的话，我们就都淹死了。即时训练1用所给词的适当形式填空The waiter
5、 would serve you more quickly if you spoke (speak)to him more politely.Do you think he would lend (lend)me his computer if I asked (ask)him nicely?If they really wanted (want) to see the house now，I would have (have)to get the permission of the owner.二、非真实(虚拟)条件句的倒装if虚拟条件句中有were，had，should时，可把if省略，而
6、把were，had，should放在主语前，构成倒装结构。Were I you(If I were you)，I would take the job.如果我是你，我就会做那份工作。Had I had time(If I had had time)，I would have gone and helped him.如果我有时间，我就会帮助他了。Should he come(If he should come)，tell him to ring me up.万一他来，告诉他给我打电话。名师点津若虚拟条件句为否定句，否定词not不提前。Had I not been ill that day，I w
7、ould have taken part in the parade.如果那天没生病，我会去参加集会的。即时训练2句型转换If I were at school again，I would study harder.Were I at school again，I would study harder.If you had come earlier，you would catch the bus.Had you come earlier，you would catch the bus.If he had come here yesterday，he would have seen his ol
8、d friend.Had he come here yesterday，he would have seen his old friend.名师点津If it werent for./If it hadnt been for.相当于but for.，意为“多亏了，要不是”。If it hadnt been for your advice，I should have failed.But for your advice，I should have failed.要不是你的忠告，我会失败的。.单句语法填空1If she had been at school，I would have seen (s
9、ee) her.2I would let (let) you go to work now if it werent raining so hard.3Had (have) it not been for the free ticket，I would not have gone to see the film.4If I had had her phone number，I would have got (get) in touch with her.5Were (be) I you，I would buy a new car.6If it were to rain/should rain/
10、rained (rain) tomorrow，the meeting would be put off.7If I was/were (be) in charge，Id do things differently.8Would she tell us the truth if we asked (ask) her?9What would have happened (happen) had Bob walked farther，as far as the river bank?10But for the storm，we would have had (have) a pleasant jou
11、rney，but had to turn back halfway.单句改错(每小题仅有1处错误)1If you took my advice，you would not have failed in the exams.tookhad taken2If I was you，Id start looking for another job.waswere3If it hadnt been for his help，I wouldnt succeed.succeedhave succeeded4If you asked her yesterday，you would have known what to do then.asked前加had5If it snowed tomorrow，I wont go there.wontwouldnt/snowedsnows