Unit 3 Grammar （ppt课件）-2022新外研版（2019）《高中英语》必修第三册.ppt

1、 Book 3 Unit 3 Grammarthe Present Perfect Passive Revision on some key words welcome to sw.2.in addition3.work as4.lead to5.be capable of6.have been doing7.With的复合结构8.in terms of9.have a desire to do10.as well as Its a pleasure to do sth.It is/was+that/who.Never say never!I guess you have been asked

2、 about the title of your book before.(P 26)New inventions like 3D printers have been used to make replacement hearts and bone parts.(P27)Task 1 A Review of Knowledge I guess someone has asked you about the title of your book before.2.People have used new inventions like 3D printers to make replaceme

3、nt hearts and bone parts.Whats the difference between them?3.Ive also been told that youre an inventor yourself.(P27)4.Nothing like this has been invented yet(P27)Why does the author use the passive form instead of the active form in the reading passage?To emphasize the subject of a sentence.Can you

4、 find more such sentences in the reading passage?一、现在完成时的基本用法：、现在完成时的基本用法：1.表示过去发生的动作对现在的结果和影响。表示过去发生的动作对现在的结果和影响。例如：例如：这电影我看过多次了。这电影我看过多次了。他去过香港几次。他去过香港几次。I have seen the film many times.He has been to Hong Kong several times.Task 2 the use of the present perfect tense 2.表示过去发生的动作到现在为止已经完成或刚完成表示过去发

5、生的动作到现在为止已经完成或刚完成。我们已经学完了两个模块。现在我们把树都种完了。We have finished two modules.Now we have planted all the trees.3.现在完成时可以表示过去某一时刻发生的动作一直 延续到现在，也可能还要继续延续下去。她病了三天了。She has been ill for three days.我们从小就认识。We have known each other since we were children.Task 3 time marker in the present perfect tense 由由since引导的

6、状语时，主要谓语通常要现在完成时引导的状语时，主要谓语通常要现在完成时态：态：since引起的状语从句中，通常用一般过去时）引起的状语从句中，通常用一般过去时）自从2月份我们就不得不在家学习。We have had to study at home since February.自从毕业我就没见过他。I havent seen him since graduation.I havent seem him since we graduated.2.now,already,yet,just,so far,up to now,ever,never,in(during/over)the past/la

7、st+some time,Do you know more time markers?In the past ten years great changes have taken place in China.We havent received the news that we can go back to school to study.3.This is the first time that I have donated money to the charity.Do you think they are correct?The old man has died for ten yea

8、rs.They have got married for 2o years.I have bought the car for ten years.eThe old man has been dead for ten years.They have been married for 20 years.I have had the car for ten years.I bought the car ten years ago.Eg:How to change the present perfect into the passive sentences?1.We have learned man

9、y useful words so far.Many useful wordshave been learned(by us)主语主语主语so farSummary:主动态句子变为被动态时，宾语变为主语，谓语动词主动态句子变为被动态时，宾语变为主语，谓语动词由主动变为被动，其他成分不变，主动态的主语由由主动变为被动，其他成分不变，主动态的主语由by引导放在句后，可以省略。引导放在句后，可以省略。谓语谓语Eg:2.The company has given him a chance to work abroad recently.主语谓语间宾直宾定语He has been given a cha

10、nceto work abroad recently(by the company)Summary:带双宾语的句子，如send,give,bring,teach,show,tell,buy,lend,pass等，变为被动态时，一般将间接宾语变为被动态的主语，若将直接宾语变为被动态主语，间接宾语前要用相应的介词。A chance to work abroad has been given to him recently (by the company.)Task 4 Change the following sentences into passive voice.They have resol

11、ved conflicts so far.Professor Li has persuaded him to quit smoking.He has found a temporary job to support his study.4.Volunteers have made ten wells up to now to help the African people.Conflicts have been resolved so far.He has been persuaded to quit smoking by professor Li.A temporary job has be

12、en found by him to support Ten wells have been made up to now to help5.I have asked her to help you.6.Tom has taught us English for 10 years.7.He has sent me an e-mail.She has been asked to help you(by me)We have been taught English for 10 years(by Tom.)I have been sent an e-mail(by him.)Task 4 Chan

13、ge the following sentences into passive voice.Task 5 learn more about the present perfect passive 肯定式否定式一般疑问句特殊疑问句 主语+have/has been done主语+have/has not been doneHave/Has+主语+been done?疑问词+have/has+主语+been done?The children have already been told the good news.改成否定句:改为一般疑问句;就the children进行提问;Do more e

14、xercisesThe children have not been told the good news yet.Have the children been told the good news yet?Who has already been told the good news?1Is this the first time you _ Chonqing?No.The first time I _ here,the city wasnt so fascinating.Avisited;cameBvisited;have comeChave visited;have come Dhave

15、 visited;came2With the rapid growth of population,the city _ in all directions in the past five years.ASpreads Bhas spreadCSpread DHad spread3The room is dirty.Sorry,It _ for weeks and I will do it now.Ahasnt cleanedBhasnt been cleanedCwasnt cleanedDdidnt cleanHave a try!DBB4.We admire Susan for her

16、 persistence,who _ in the rock band for 3 years so far.AplayedBPlay Chave playedDhas played5Why are you buying a new refrigerator?The old one _ so many times that its not worth it any more.Ahas repaired Bis repairedChas been repaired Dhas been repairing6Great changes _ in our school since 2016.A lot

17、 of progress _.Ahave taken the place;have been madeBhad taken place;have been madeCwere taken place;has madeDhave taken place;has been madeDCD7How long _ you _?For five years.We _ in 2001.Ahave;been married;got married.Bdid;marry;got married.Chave;got married;married.Dwere;married;married.8The fathe

18、r,along with his four children,_Hangzhou.When they will be back _ fixed.Ahave gone to;isnt Bhad gone to;is not C.went to;are not Dhas gone to;has not beenADTask 5 Finish activity 2 on P29.1.Many things have already been affected in our lives.2.3D-printed hamburgers have been served to customers in s

19、ome restaurants in London.3.The most significant success have been achieved to date is in medicine.4.Human body parts,including a beating heart have been made with 3D printing technology.5.A new 3D-printed shell has been given to a turtle injured in a forest fire.Task 6 Look at the other passive voi

20、ce 一般现在时的被动态：一般过去时的被动态：现在进行时的被动态：过去进行时的被动态：一般将来时的被动态：过去将来时的被动态：过去完成时的被动态;am/is/are+donewas/were+doneam/is/are being donewas/were+being donewill be donewould be donehad been doneTask 7 Are you ready for more exercises?用被动态完成下面的句子用被动态完成下面的句子 He crticised me for not handing in the homework.2.Mr li alwa

21、ys tells us to be independent on ourselves.3.This organization will donate money to the charity.4.He had earned enough money before he went to college.I was criticised for not handing in the homework.We are always told to be independent on ourselves.Money will be donated to the charity.Enough money had been earned before he went to college.Summary Grasp the present perfect passive.Remember some time markers.Other forms of passive.Homework 1.Finish the paper 2.Recite the key words of unit 3.3.Prepare for invention stories on P31.