公开课虚拟语气在条件句中的用法精选PPT.ppt

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1、关于公开课虚拟语气在条件句中的用法第1页，讲稿共30张，创作于星期日 These show your good wishes or dreams.It is evident that they are not real or they cant come true(表示说话人的愿望、假设、猜测或建议，表示说话人的愿望、假设、猜测或建议，而不表示客观存在的事实。而不表示客观存在的事实。)romantic,unrealistic,best wishes 第2页，讲稿共30张，创作于星期日第3页，讲稿共30张，创作于星期日09.04.2023英语动词有三种语气，英语动词有三种语气，陈述陈述语气，祈使

2、语气和虚拟语气。语气，祈使语气和虚拟语气。陈述语气陈述语气(The Indicative Mood):用来陈述用来陈述一个事实，或提出一种看法，有肯定、否定、一个事实，或提出一种看法，有肯定、否定、疑问或感叹等形式。疑问或感叹等形式。I am not interested in what you said.Have you ever been to France?What a splendid palace!We had many trees planted last year.第4页，讲稿共30张，创作于星期日祈使语气祈使语气(The Imperative Mood),用来表示用来表示请求、

3、邀请、命令、警告或劝告等。请求、邀请、命令、警告或劝告等。nLets have a talk.nDont jump in the queue.nOpen the door,please.第5页，讲稿共30张，创作于星期日虚拟语气虚拟语气(The Subjunctive Mood)定义：表示说的话不是事实，或者是不可定义：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，能发生的情况，而是一种愿望，建议，假设。假设。nIf I were you,I would go there.nI wish I were a bird flying in the sky.nI suggest y

4、ou should follow your fathers advice.第6页，讲稿共30张，创作于星期日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第7页，讲稿共30张，创作于星期日 If I were a child,I would be happier.第8页，讲稿共30张，创作于星期日If he were a bird,he could fly in the big blue sky.第9页，讲稿共30张，创作于星期日If I had a lot of money,I would buy a villa （别墅）（别墅）.第10页，讲稿共30

5、张，创作于星期日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)第11页，讲稿共30张，创作于星期日Practice1 Tell what the foll

6、owing 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

7、be could would attend had had could go第12页，讲稿共30张，创作于星期日If you had worked hard,you would have passed the exam.第13页，讲稿共30张，创作于星期日If they had had enough rain last year,they would have gained good harvest.第14页，讲稿共30张，创作于星期日If he had driven more carefully yesterday,he would not have had the car accident

8、.第15页，讲稿共30张，创作于星期日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

9、 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）第16页，讲稿共30张，创作于星期日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

10、 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 第17页，讲稿共30张，创作于星期日If it were/should be fine tomorrow,I would go to see him.第18页，讲稿共30张，创作于星期日If I should visit/were to visit/visited the sch

11、ool next time,I would go to the library.第19页，讲稿共30张，创作于星期日If they should play/were to play/played better next time,they would not fail again.第20页，讲稿共30张，创作于星期日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 l

12、ibrary.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 第21页，讲稿共30张，创作于星期日Practice3 1.If it _ (rain)tomorrow,we _(not go)out.2.I dont like exams.If

13、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/won第22页，讲稿共30张，创作于星

14、期日Conclusion 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 sbIf sb_(_(条件句条件句)Sb _Sb _（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第23页，讲稿共30张，创作于星期日注意点注意点1:

15、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 woul

16、d have succeeded.Were it not for the expense,I would go to Britain.注注:If it were not/had not been for 也是常见的虚拟句型也是常见的虚拟句型,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.第24页，讲稿

17、共30张，创作于星期日注意点注意点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所发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表示的生的时间不一致时，动词的形式要根据它所表示的时间作相应调整。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.第25页，讲稿共30张，创作于星期日注意点注意点3:with,without,but f

18、or,but,or,otherwise等形式的含蓄条件等形式的含蓄条件句。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”引导的条件从句，引导的条件从句，引导的条件从句，引导的条件从句，但是句子中隐含着一个条件，这种句子称为含蓄条件句但是句子中隐含着一个条件，这种句子称为含蓄条件句但是句子中隐含着一个条件，这种句子称为含蓄条件句但是句子中隐含着一个条件，这种句子称为含蓄条件句nWithout air(If there were no air)，there would be

19、 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。第26页，讲稿共30张，创作于星期日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)_

20、the tree yesterday.would be should havewouldnt have hit第27页，讲稿共30张，创作于星期日注意点注意点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 o

21、nly I hadnt missed the train!第28页，讲稿共30张，创作于星期日If 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!第29页，讲稿共30张，创作于星期日感感谢谢大大家家观观看看09.04.2023第30页，讲稿共30张，创作于星期日