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1、If If 条件句条件句If you do not hurry,you will miss the train.If I am free tomorrow,I will go out with you.If it rains tomorrow, we will stay at home.主将从现主将从现If it stops snowing，we can go out. If you want to pass the exam，you must study hard.If you want to lose weight, you should eat less bread.主情从现主情从现If
2、 you _ (踢得好），you can _ (可以进足球队）。If I _（做错了什么事），you cannot _（不可以对我嚷）。If you _（想让我做什么事），you must_(必须说 “please”).？如果你是一头猪，我就把你给吃了。如果我是一只鸟，我要给到天堂去。如果没有空气，人就会死去。If I were you, I would go away immediately.If I knew the questions of the exam, I would get the highest mark this time.If非真实条件句非真实条件句与现在事实相反与现在事
3、实相反 从句从句 主句主句If + 主语主语 + were/动词过去时动词过去时 主语主语+ would +动原动原？如果你是一头猪，我就把你给吃了。如果我是一只鸟，我要飞到天堂去。如果没有空气，人就会死去。与现在事实相反与现在事实相反 从句从句 主句主句If + 主语主语 + were/动词过去时动词过去时 主语主语+would/should/might/could +动原）动原）1 If I _ wings, I could fly all over the world.A. have B. have had C. had D. had had2 If my nose _ a little
4、 shorter, I would be quite pretty.A. is B. will be C. has been D. were3 If I knew his address, I _ to him.A. can write B. could write C. could have written D. had written 4.You might achieve better results if you _ improve your learning strategies.A.can B.could C. were D.was如果我不用上班就能领到工资，人生会是多么美好。Ju
5、st For FunJust For FunIf you were the last man in the world, I would definitely remain single.If Li Gang were your father, I would marry you.If the sun rose in the west, I would marry you.？如果我当时努力学英语的话，我就已出国了。如果我们当时没分手的话，我们已经结婚了。如果当时我是你的话，我就不接受他。与过去事实相反与过去事实相反 从句从句 主句主句If + 主语主语 + had done 主语主语+ wou
6、ld have done如果我当时努力学英语的话，我就已出国了。如果我们当时没分手的话，我们已经结婚了。如果你早点认识我的话，你就已经喜欢上我了。If I had learned English hard, I would have gone abroad.If we had not broken up, we would have got married.If you had known me earlier, you would have fallen in love with me.天下真有这样标志的人儿！我今日才算看见了！If I hadnt set eyes on her today
7、, I wouldnt have believed that a beautiful creature could exist.?如果你再跟他结婚的话，我会杀了你。如果你不久之后会成功的话，我就会成为美国总统。与将来事实相反与将来事实相反从句从句 主句主句If +主语主语 +were/did/were to doIf +主语主语 +should do 主语主语+would+动原动原如果你再跟他结婚的话，我会杀了你。If you were to marry him again, I would kill you.如果你不久之后会成功的话，我就会成为美国总统。If you were to succ
8、eed, I would become the president of the U.S.A.If If非真实条件句非真实条件句从句从句 主句主句If + 主语主语 + were/动词过去时动词过去时 主语主语+ would +动原动原If + 主语主语 + had done 主语主语+ would have doneIf +主语主语 +were/did/were to doIf +主语主语 +should do 主语主语+would+动原动原ExerciseExerciseIf I hadnt attended an important meeting yesterday, I _(come
9、) to see you.If I _(know) that your business was growing so rapidly, I wouldnt have worried about that.If I _(be) you, I wouldnt ask such a silly question.If I _(not drink) so much coffee yesterday afternoon, I would have been able to sleep well last night.省略连词省略连词if if were,had或或should等移至主语之前等移至主语之前If I were you, I would go away immediately.If you had known me earlier, you would have fallen in love with me.If you should succeed, I would become the president of the U.S.A.