Unit 3 Discover useful structures （ppt课件）-2022新人教版（2019）《高中英语》选择性必修第二册.pptx

1、新人教版选择性必修二Unit 3 Discover useful structuresThe past perfect tense&The past perfect passive voice1.Enable the students to master the usage of past perfect tense and its passive voice in this unit.2.Enable the students to use the past perfect tense flexibly.Teaching objectives:目 录1 1过去完成时的定义2 2过去完成时的用

2、法3 3巩固训练1 1过去完成时的定义和基本结构阅读下列句子，注意红色字体。1.Prior to coming to China,my only experience with Chinese cooking was in America,with Chinese food that had been changed to suit American tastes.2.When my family and I had just arrived in China,we went looking for a good place to eat in Beijing.3.A Sichuan rest

3、aurant had been recommended to us by a friend,and finally,we found it.4.Tired,hungry,and not knowing a word of Chinese,we had no idea how to order,so the chef just began filling our table with the best food we had ever eaten.1.2.3.句都用到了 。过去完成时定义：过去完成时表示在过去某一时间或动作之前已经发生或完成了的动作，即“过去的过去”。过去过去的过去现在基本结构：

4、(1)肯定：主语had(been)done(2)否定：主语had not(been)done(3)疑问：Had主语(been)done 疑问词had主语(been)done2 2过去完成时的用法1.过去完成时基本用法：过去完成时表示过去某一时间或某一事件前，已发生的动作或已存在的状态。即“过去的过去”，常跟by，before等介词短语或一个时间状语从句连在一起，也可以通过上下文来判断时间先后。1.They had planted six hundred trees before last Wednesday.2.The project had been completed by the end

5、 of 1999.3.I had been at the stop for 20 minutes when a bus finally came.4.She didnt go to bed until she had finished her work.5.Mr.Smith died yesterday.He had been a good friend of mine.即学即练：1.By nine oclock last night,we _(get)200 pictures from the spaceship.2.The classroom _(not clean)before the

6、teacher came.3.She _(return)home and _(find)all her furniture _(ruin)by the flood.4.We _(leave)the house when the thunderstorm _(finish).5.He _(try)to drive back to his home before the flood _(pass)through the village.had gothadnt been cleanedfoundhad been ruinedreturnedlefthad finishedhad triedpass

7、ed2.过去完成时几种固定结构1)1)用于虚拟语气中用于虚拟语气中1.I wish I had told him about it.2.He talked about Rome as if he had been there.3.If only we had entered college last year！4.I would rather you hadnt done that.5.If it had not been for your help yesterday,I could not have caught the bus.6.If you had taken my advice t

8、hen,you would not be in trouble now.对对过过去去的的虚虚拟拟2)2)过去完成时常常用在过去完成时常常用在told,said,knew,heard,thoughttold,said,knew,heard,thought等动词后的宾语从句（或间接引语）中，这时从句中的动作发等动词后的宾语从句（或间接引语）中，这时从句中的动作发生在主句的动作之前。生在主句的动作之前。1.He said that he had known her well.2.I thought I had sent the letter a week before.3.Jack told me

9、he had read the book before.3)3)动词动词think,want,hope,mean,plan,intendthink,want,hope,mean,plan,intend等用过去等用过去完成时来表示过去未曾实现的想法，希望，打算或意图等。完成时来表示过去未曾实现的想法，希望，打算或意图等。1.They had wanted to help but could not get there in time.2.We had hoped to be able to come and see you.3.I had intended to be there on time

10、.4.Greta had meant to see her off at the airport.4)4)在在hardlywhen,hardlywhen,scarcely.when.,scarcely.when.,no no soonerthan,soonerthan,固定固定句型中句型中，用过去完成时。，用过去完成时。1.He had hardly begun to speak when the audience interrupted him.2.Hardly had we left the house when it began to rain.3.No sooner had he ar

11、rived than he went away again.5)5)过去完成时还可用过去完成时还可用It was the first(second.)time It was the first(second.)time(that),(that),It was the+It was the+形容词最高级形容词最高级+名词名词+(that).+(that).等固等固定句型中定句型中1.It was the first time that she had sung in public.2.It was the third time that he had been out of work.3.It

12、was the most inspiring performance I had watched.4.It was the best coffee I had ever tasted.试比较：试比较：It is the first time that he have wept in ten years.You are the sweetest person I have ever met.3 3巩固练习1.Complete the senences 1.Before I knew it an hour _(pass)and it was time to move on to lunch.全国I

13、II卷2.Like many military medals,the one Zacs mother _(find)was a family treasure.浙江卷3.A rescue worker risked his life saving two tourists who_(trap)in the mountains for two days.北京卷4.Mabry said he (not plan)to do much for his milestone birthday,so he was happy that the students (prepare)the surprise

14、celebration.天津卷had passedhad foundhad been trappedhadnt plannedhad prepared5.Alan Greenspan had to admit that he (make)some serious mistakes.6.Arthur was unhappy because some of his animals (die).7.I was sent to the village last month to see how the development plan (carry)out in the past two years.

15、8.This morning I was informed that I (choose)as one of three exchange students from our college.9.I (expect)the operation to be painful，but I didnt feel a thing.had madehad diedhad been carriedhad been chosenhad expected10.Hardly had he _(see)me when he ran away.11.I wish you _(come)to my birthday p

16、arty last night.12.It is the first time that I _(go)abroad.13.If I _(read)the book,I would have told you about it.14.They became homeless again,for their house_(destroy)in the earthquake.15.They said that they _(plant)the trees on the hillside.seenhad comehave gonehad readhad plantedhad been destroy

17、ed2.Complete the two conversations with the correct forms of the words in the box using the past perfect tense or the past perfect passive voice.1.Carol:_you ever _ any Scottish food before your trip to St Andrews last year?Paul:No,not really.But I _about haggis many times before we went there.Carol

18、:Oh.Did you try it?Paul:Oh,yes!You know what?We_ late for supper that day,and so we just ate whatever was left in the university canteen.We _our meal before we learnt we_ just_，haggis!arrive cancel eat finish get taste tellarrive cancel eat finish get taste tellHadtastedhad been toldarrivedhad finis

19、hedhadeatenCarol:My goodness!Paul:Well,it was not bad.I have to say.2.Caro:When I got to the tea house yesterday,I found nobody there._it_?Paul:Oh,Im so my that forgot to tell you!The get together was cancelled yesterday morning because Sally,the hostess,_into a car accident.Carol:Oh,Im sorry to hear that.Hope Sally recovers soon!.Hadbeen cancelledhad gotHomework:1.2.Thanks