公开课-虚拟语气在if条件句中的用法.ppt

If I were a boyIf I were a boy even just for a day Id roll out of bed in the morning and throw on what I wanted and go；drink beer with the guys and chase after girls Id kick it with who I wanted and Id never get confronted for it cause they stick up for me If I were a boy I think I could understand How it feels to love a girl I swear Id be a better man The girl expressed her _to be a boy.wish/dreamIf I were a boyIf I were a boy,I think I could understand how it feels to love a girl.If I were a boy,I would roll outta bed in the morning.如果我是一个男孩，如果我是一个男孩，我会在清晨翻身下床。我会在清晨翻身下床。如果我是一个男孩，我想如果我是一个男孩，我想我会明白爱上一个女孩会我会明白爱上一个女孩会是怎样的感觉。是怎样的感觉。The girl expressed her _to be a boy.wish/dreamIf the God _(give)meanother chance，I_(tell)the girl three words:I love her!If our love _(have to)be set a time limit,I wish it _(be)10,000 years!should/were to give/gave would tellhad to would be 如果上天能够给我一个再来一次的机会，如果上天能够给我一个再来一次的机会，我会对那个女孩子说三个字：我爱你。我会对那个女孩子说三个字：我爱你。如果非要在这份爱上加上一个期限，我希望是如果非要在这份爱上加上一个期限，我希望是-一万年一万年!Q:Whats the difference between the two sentences?If I am free,I will visit you.If I were a bird,I would fly to the sky.真实条件句真实条件句虚拟条件句虚拟条件句Q:Whats the difference between the two sentences?If it rains tomorrow,we will stay at home.If I were you,I would work harder and be better.真实条件句真实条件句虚拟条件句虚拟条件句虚拟语气虚拟语气(The Subjunctive Mood)定义：表示说的话定义：表示说的话不是事实不是事实，或者是，或者是不可不可能发生的情况能发生的情况，而是一种愿望，建议，而是一种愿望，建议，假设。假设。Subjunctive Mood 虚拟语气在虚拟语气在if条件句中的用法条件句中的用法 If I _ a child,I _ happier.If he were a bird,he could fly in the big blue sky.If I had a lot of money,I would buy a villa （别墅）（别墅）.1.If I were a child,I would be happier.2.If he were a bird,he could fly in the big blue sky.3.If I had a lot of money,I would buy a villa.When(时间）Structure(结构）与_事实相反(现在,过去,未来)If sb_，sb_.Discover1 现在现在 were/did(动词过去式动词过去式）.would/could do(动词原形动词原形)Second conditionalPractice1 Tell what the following people are thinking.Two-year-old:If I _(can)talk,I _(tell)my mother that I hate peas.14 year-old:I _(be)happier if I _(can)drive.16-year-old:If I _(have)a car,my friends andI_(go)out every night.19-year-old:If I _(have)a lot of money,_(attend)a private(私立的私立的)university.could would tell would be could would attend had had could goIf you had worked hard,you would have passed the exam.If they had had enough rain last year,they would have gained good harvest.If he had driven more carefully yesterday,he would not have had the car accident.1.If you had worked hard,you would have passed the exam.2.If they had had enough rain last year,they would have gained good harvest.3.If he had driven more carefully yesterday,he would not have had the car accident.When(时间）Structure(结构）与_事实相反(现在,过去,未来)If sb_,sb_.Discover2 过去过去 had done(动词过去分词）动词过去分词）would(not)have done(动词过去分词）动词过去分词）Practice 2 1.I _ (study)English when I was a child if I _(know)the importance(重要性重要性)of it.2.I didnt see your sister at the meeting.If she_(come),she_(meet)my brother.3.Miss Jiang explained the homework to the class yesterday.If Judy _(pay)more attention at the time,he_ (not miss)her instructions(介绍介绍).would have studied had known had come would have met had paid would not have missed If it were/should be fine tomorrow,I would go to see him.If I should visit/were to visit/visited the school next time,I would go to the library.If they should play/were to play/played better next time,they would not fail again.1.If it should be/were fine tomorrow,I would go to see him.2.If I should visit/were to visit/visited the school next time,I would go to the library.3.If they should play/were to play/played better next time,they would not fail again.When(时间）Structure(结构）与_事实相反(现在,过去,未来)If sb_,sb_.Discover3 未来未来 would(not)do were/should be/should do/were to do/did Practice3 1.If it _ (rain)tomorrow,we _(not go)out.2.I dont like exams.If there _(be)no exam tomorrow,I _(see)a movie.3.Eason doesnt think he will ever win a singing Competition（比赛）（比赛）.If,by chance,he _ (win),he _(spend)the prize money on a computer.should rain/were to rain/rained would not go would see would spendwere/should be were to win/should win/wonConclusion 虚拟语气在虚拟语气在if条件句中的用法条件句中的用法When When If If sbsb_(_(条件句条件句)SbSb _ _（主句）（主句）与现在事实相反 与过去事实相反 与将来事实相反 助动词 be用 were 实义动词 do 用 did would should +do sth could mighthad donedid/were should dowere to dowould should+do sth could mightwould should+have done sth could might注意点注意点1:省略省略ifif的条件句的条件句有时侯在使用时可省略有时侯在使用时可省略if,句子则可换成下列形式，即句子则可换成下列形式，即“were/had/should+主语主语”。如如1.If I were a boy,I would join the army.2.If he had taken my advice,he would have succeeded.3.If it were not for the expense,I would go to Britain.Were I a boy,I would join the army.Had he taken my advice,he would have succeeded.Were it not for the expense,I would go to Britain.注注:If it were not/had not been for 也是常见的虚拟句也是常见的虚拟句型型,意思是意思是“要不是要不是”例如例如:If it had not been for your help,we would not have achieved so much in our work.If it were not for the wise decision,we could not be living a happy life.注意点注意点2:时间错综条件句时间错综条件句 当条件状语从句表示的行为和主句表示的行为当条件状语从句表示的行为和主句表示的行为所发生的时间不一致时，动词的形式要根据它所发生的时间不一致时，动词的形式要根据它所表示的时间作相应调整。所表示的时间作相应调整。If you had followed my advice yesterday,you would be better now.He might be praised now,if he had made rapid progress.注意点注意点3:with,without,but for,but,or,otherwise等形式的等形式的含蓄条件句。含蓄条件句。在虚拟语气中，有的句子可能没有明显的由在虚拟语气中，有的句子可能没有明显的由在虚拟语气中，有的句子可能没有明显的由在虚拟语气中，有的句子可能没有明显的由“if”if”引导引导引导引导的条件从句，但是句子中隐含着一个条件，这种句子称的条件从句，但是句子中隐含着一个条件，这种句子称的条件从句，但是句子中隐含着一个条件，这种句子称的条件从句，但是句子中隐含着一个条件，这种句子称为含蓄条件句为含蓄条件句为含蓄条件句为含蓄条件句nWithout air(If there were no air)，there would be no living things.如果没有空气的话，就不会有生物了。nBut_for your help(If it hadnt been for your help)I couldnt have done it.要不是你的帮助，我就不可能完成这件事。1.Without sunlight,peoples life different from today.2.But for the rain we _(有有)a pleasant journey today.3.He is not a careful driver;otherwise he(不会撞不会撞)_the tree yesterday.would be should havewouldnt have hit注意点注意点4:If only 要是就好了要是就好了(假设假设)If only I knew his name!If only we had followed your advice!If only I could see him again!要是我们的父母能和我们住在一起就好了。要是我们的父母能和我们住在一起就好了。要是我没错过火车就好了！要是我没错过火车就好了！If only our parents could live with us!If only I hadnt missed the train!Homework1.Review what we have learned today2.Do Ex3 on page5(Students Book)3.Finish all the exercises on page 10-12(金版学案)