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北师大2003课标版《Lesson 1 Life-long Learning》集体备课PPT课件优质课下载
If 从句的谓语形式
主句的谓语形式
现在
过去
未来
did / were
had done
would/could/should/might +V.(原)
would/could/should/might+have+p.p.
1. did / were
2. should do
3. were to do
would/could/should/might + V.(原)
1. If I had money, I would build a school for these poor children.
2. If I were you, I would forgive him.
3. If I had taken your advice, I wouldn’t have made this mistake.
4. If he had been there, he would have made things worse.
与现在事实相反
与过去事实相反
5. If it should rain tomorrow, they wouldn’t go shopping.
6. I think we could finish the work, if we planned it properly .
7. If we were to have three days off , we would enjoy a very happy life.
与未来事实相反
二、虚拟语气特殊句型：
wish