英语必修Ⅴ北师大版UNIT15课件（共50张）语法.ppt

1、1.In the past,if someone like me had failed to get into university through the college exam,he would have had no chance of getting a degree.2.In the past,if someone had worked for a company for over 20 years,they would have stayed there until retirement!3.In the past,if I had wanted to see them,I wo

2、uld have had to visit them in person.to test your sense of observationto test your ability of short-term memory to test your ability to highlight the language pointsGuess1.In the past,if someone like me _(fail)to get into university through the college exam,he _(have)no chance of getting a degree.2.

3、In the past,if someone _(work)for a company for over 20 years,they _(stay)there until retirement!3.In the past,if I _(want)to see them,I would have had to visit them in person.Fill in the blanks.had wantedhad failedwould have hadhad workedwould have stayed1.If I _ where he lived，I _ a note to him.A.

4、knew,wouldB.had known,would have sentC.know,would sendD.knew,would have sent 2.If they _ earlier than expected，they _ here now.A.had started,would beB.started,might beC.had started,would have beenD.will start,might have been3.Mary is ill today.If she _，she _ absent from school.A.were not ill,wouldnt

5、 beB.had been ill,wouldnt have beenC.had been ill,should have beenD.hadnt been ill,could be4.We wish we _ what you did when we were at high school.A.did B.could have done B.C.have done D.should doSubjunctive Mood语气(mood)是用来表示谈话人的态度和看法的动词形式。英语有三种语气:陈述语气(同陈述句)祈使语气(同祈使句)虚拟语气虚拟语气不表示一个事实,而是表示一种 假 设 情 况(愿

6、 望，建 议，假设)。虚拟语气用于条件状语从句If I were a boy,I would join the army.虚拟条件句：表示与现在情况相反的假设从句谓语主句谓语一般过去式(be 一般用werewould/should/could/might+动词原形What would you do if you won the lottery?If I won the lottery,I wouldIf I won the lottery,I would buy an expensive car.If I had a lot of money,I would buy a villa.If I

7、had a lot of money now,I would travel around theworld.a.If they _(be)here,they _(take)your advice.b.If the world-war _(burst)out again,what _(happen)to our people on earth?c.If the policeman _(be not)in that room,it _(be)very dangerous.d.If I _(be)in your position,I _(ask)for teachers help.werewould

8、 takeburstwould happenI:Fill in the blanks.were notcould bewerewould ask2.与过去的事实相反虚拟条件句：表示与过去情况相反的假设从句谓语主句谓语had donewould/could/might/should+have doneIf he _ more carefully,he_ the car accident yesterday.had driven would not have had If I had learnt how to swim,I _ trapped onthat island.would not ha

9、ve beena.If Tom _(be)more careful in the exam,he _(pass)it already.b.If you _(get)up earlier,you _(catch)the first train.had beenwould have passedhad gotwould have caughtII:Fill in the blanks.3.与将来事实相反虚拟条件句：表示与将来情况相反的假设从句谓语主句谓语动词过去式/were to do/should doshould/would/could/might 动词原形If he _ up early,h

10、e would be on time.got要是明天下雨，运动会就推迟。If it rained tomorrow，the sports meet would be put off.假如他看见我,就会认出我。If he should see me,he would know me.a.If I _ _(free)tomorrow,I _ _(show)him around the college.b.What _(happen)if you _(get up)too late tomorrow?werewould happenshould get upIII:Fill in the blank

11、s.would missfreeStatement:Pair work Question:Answer:If you got the chance to talk to the president,what would you say?If you got the chance to talk to the president,Iwould ask him toThe food in our school canteen is terrible.Statement:Question:Answer:The girl eats very little to lose weight.If you w

12、ere the girl,what would you do?If I were,I would Statement:Question:Answer:What would you do if your father appeared in the net bar?If my fatherMy father doesnt allow me to go to the net bar.Statement:Question:Answer:Who beat the tough guy?Nobody.Had the Spiderman been here,he could have beaten the

13、tough guy.Statement:Question:Answer:Can he fly?No,he cant.The actor wishes he could fly like a bird.Statement:Question:Answer:Whats the fact?The sunlight will be with us forever.Should there be no sunlight,there would be no life.if 从句(谓语形式)主句(谓语动词)例句真实情况现在时现在时Sales of products fall if prices rise.绝对

14、真实现在时将来时If a child buys these toys,he or she will learn nothing.可能发生Real conditionals(真实条件句)SummaryUnreal conditionals(虚拟条件句)I if 从句(谓语动词)主句(谓语动词)例句真实情况过去时be动词用werewould/should/could/might+原形动词If all of you went to Beijing University,I would be the greatest teacher in China.与现在事实相反Unreal conditional

15、s(虚拟条件句)IIif 从句(谓语动词)主句(谓语动词)例句真实情况had+过去分词would/should/could/might have+过去分词She wouldnt have opened the box,if she had been warned of danger.与过去事实相反Unreal conditionals(虚拟条件句)IIIif 从句(谓语动词)主句(谓语动词)例句真实情况should/were to+原形动词或动词过去式would/should/could/might+原形动词If the sun were to/should go out tomorrow,w

16、e would have to live in the dark.与将来事实相反虚拟语气特殊句型：1.wish/if only现在：过去：未来：did（were）had donewould do1)I wish I were a bird.（现在）2)I wish I hadnt made such a mistake.（过去）3)We wish our parents wouldnt punish us.（将来）If only I knew his name!If only we had followed your advice!If only I could see him again!要

17、是我们的父母能和我们住在一起就好了。If only our parents could live with us!If only I hadnt missed the train!要是我没错过火车就好了！2.would rather that现在：过去：未来：I would rather you paid me now.I would rather you had gone,too.Dont come.I would rather you came tomorrow.diddidhad done3.Its(about/high)time+that should dodid你该走了。我们该去睡觉

18、了。Its high time that you went.Its high time that you should go.Its time that we went to bed.Its time that we should go to bed.4.表示要求，命令，建议的虚拟语气。1）宾语从句。常见动词：一个坚持，两个命令，三个建议，四个要求。即1.insist 2.order,command 3.advise,suggest,propose4.demand,require,request,desire这些动词后面的宾语从句要使用虚拟语气用法。即从句中的动词使用should+动词原形，或

19、者将should省略。2.他们要求我们派他们去那儿工作。1.我们建议Tom去休息一下。3.他坚决要求我到场。4.国王命令囚犯明天要实施死刑。We suggested that Tom have a rest.They requested that we(should)sendthem to work there.He insisted that I(should)be present.The king ordered that the prisoners be killed the next day.2）以上动词相应的名词构成的名词性从句包括主语从句，表语从句和同位语从句也要使用虚拟语气。从句

20、中的动词形式一样。order,advice,suggestion,proposal,demand,request,desireeg.Its suggested that the plan be carried out.My demand is that she should cometo see me once a week.All of us are for the advice that the chemical factory should be closed down.1.The guard at gate insisted that 2.everybody _(obey)the ru

21、les.2.He insisted that she _(be)seriously ill and that _(send)to hospitals at once.3.He suggested that we _(have)a meeting at once.4.His advice is that we _(leave)at once.obeywasbe senthaveleave注：另附word文档，点此链接1.Look at those clouds!Dont worry._ it rains,well still have a great time.(2012 北京)A.Even i

22、f B.As though C.In case D.If only2.We _ the difficulty together,but why didnt you tell me?（2012 北京）A.should face B.might face C.could have faced D.must have faced高考链接3.We lost our way in that small village,otherwise we _ more places of interest yesterday.（2012 福建）A.visited B.had visitedC.would visit

23、 D.would have visited4.Sorry,I am too busy now,if I time,I would certainly go for an outing with you.（2012 湖南）A.have had B.had had C.have D.had1.要是我知道她的电话号码，我就可以给她打电话了。2.要是我早点动身，我就准时到了。3.如果我向他提出要求，肯定他会帮助我们。If I knew her number,I could ring herup.If Id left sooner,Id have been on time.汉译英If I asked h

24、im,Im sure he would helpus.4.如果我有时间，我会来帮助你的。5.如果你早一点起床，就会赶上火车的。6.如果明天天气好，我就去买东西。If I had time,I could come to help you.If you had got up earlier,you could have caught the train.If it were fine tomorrow,I would goshopping.时间从句谓语形式主句谓语形式将来动词过去式(be用were)should+动词原形were to+动词原形现在 动词过去式(be 用 were)would/should/might/could+动词原形过去would/should/might/could have+动词过去分词条件句中的虚拟语气根据不同的时间有三种不同的形式。would/should/could/might+动词原形had+动词过去分词1.Do exercise 5 on P79 and exercise 1 on P812.Learn the words in Lesson 4 by heart.3.Read the text and underline the sentences you dont understand.