高一英语(外研版) 必修三Unit 3 The world of science(2) 2课件.pptx
必修三 Unit 3 The world of science(2)高一年级 英语,Lesson 2 Using languagePresent perfect passive,Learning objectives,1.Sum up the structure and usage of the present perfect passive through discovering,analyzing and comparing.2.Change sentences from the present perfect active into the present perfect passive in the passage.3.Try to use the present perfect passive in different contexts properly.,invention,advance,Para.4,Para.12,Find out sentences with the two words below.,Find out sentences with the two words below.,invention,1.There have been golden ages of invention throughout history.2.Think of the four great inventions in ancient China:gunpowder,papermaking,printing,and the compass.3.Then there were the great western inventions:the steam engine,the telephone and the radio.,Para.4,Find out sentences with the two words below.,invention,1.There have been golden ages of invention throughout history.2.Think of the four great inventions in ancient China:gunpowder,papermaking,printing,and the compass.3.Then there were the great western inventions:the steam engine,the telephone and the radio.,Para.4,Find out sentences with the two words below.,advance,Para.12,Now,reduced energy supplies and environmental pollution have led to more advances in the technology of new energy vehicles.,Find out sentences with the two words below.,advance,Para.12,Now,reduced energy supplies and environmental pollution have led to more advances in the technology of new energy vehicles.,Revise,Find out sentences with the two words below.,structure,1.There have been golden ages of invention throughout history.2.Now,reduced energy supplies and environmental pollution have led to more advances in the technology of new energy vehicles.,usage,Present perfect,Revise,Present perfect,Structurehave/has done,Revise,Present perfect,Usage1.This tense indicates the action that takes place in the past and continues to the present.2.This tense indicates the action that affects the present.,Lead in,Present perfect passive,Dr Richard Fairhurst,Lead in,Present perfect passive,Dr Richard Fairhurst,If you were an interviewer,how would you like to introduce,?,Lead in,Present perfect passive,Dr Richard Fairhurst has written a world-famous book The New Age of Invention.,What if you were a bookseller?How would you like to promote this book?,Discover,Present perfect passive,Look at the sentences from the reading passage and answer the questions.,a.I guess you have been asked about the title of your book before.b.New inventions like 3D printers have been used to make replacement hearts and bone parts.,1.Can you find out the predicate of each sentence?,Analyze,Present perfect passive,Look at the sentences from the reading passage and answer the questions.,a.I guess you have been asked about the title of your book before.,2.What has happened to“you”in sentence(a)?,Someone has asked“you”about the title of your book before.,I guess someone has asked you about the title of your book before.,Analyze,Present perfect passive,Look at the sentences from the reading passage and answer the questions.,b.New inventions like 3D printers have been used to make replacement hearts and bone parts.,3.Who has used new inventions to make replacement hearts and bone parts in sentence(b)?,People have used new inventions to make replacement hearts and bone parts.,Compare,Present perfect passive,a.I guess you have been asked about the title of your book before.b.New inventions like 3D printers have been used to make replacement hearts and bone parts.,c.I guess someone has asked you about the title of your book before.d.People have used new inventions to make replacement hearts and bone parts.,passive form,active form,1,2,What is the difference between the two groups of sentences?,Compare,Present perfect passive,a.I guess you have been asked about the title of your book before.b.New inventions like 3D printers have been used to make replacement hearts and bone parts.,c.I guess someone has asked you about the title of your book before.d.People have used new inventions to make replacement hearts and bone parts.,passive form,active form,1,2,Why does the author use the passive form in the reading passage?,Compare,Present perfect passive,a.I guess you have been asked about the title of your book before.b.New inventions like 3D printers have been used to make replacement hearts and bone parts.,c.I guess someone has asked you about the title of your book before.d.People have used new inventions to make replacement hearts and bone parts.,passive form,active form,1,2,Why does the author use the passive form in the reading passage?,Compare,Present perfect passive,a.I guess you have been asked about the title of your book before.b.New inventions like 3D printers have been used to make replacement hearts and bone parts.,c.I guess someone has asked you about the title of your book before.d.People have used new inventions to make replacement hearts and bone parts.,passive form,active form,1,2,Why does the author use the passive form in the reading passage?,Compare,Present perfect passive,Why does the author use the passive form in the reading passage?,The author chooses to use the passive form instead of the active form to emphasize what has been done,rather than who or what does the action.,Present perfect passive,When do we use the passive form?,Summarize,a.强调动作的承受者，而不强调动作的执行者。All these products have been tested.b.不知道或没有必要说明动作的执行者是谁。Such books have been written for children.c.动作的执行者很模糊。The letter has been opened.d.有时为了礼貌的需要，避免说出动作的执行者。They have been told many times not to make noises.,Present perfect passive,Application,What if you were a bookseller?How would you like to promote this book?,Present perfect passive,Application,Dr Richard Fairhurst has written a world-famous book The New Age of Invention.,Dr Richard Fairhurst has written a world-famous book The New Age of Invention.,主语,现在完成时,Dr Richard Fairhurst has written a world-famous book The New Age of Invention.,现在完成时,宾语,Dr Richard Fairhurst has written a world-famous book The New Age of Invention.,主语,现在完成时,宾语,1.把主动句的宾语变成被动句的主语。,2.把主动句的谓语变成被动语态形式。,3.把主动句的主语变为by的宾语，放在被动句的谓语之后，by短语可以省略。,A world-famous book The New age of Invention,has been written,by,Dr Richard Fairhurst.,Look for more sentences with the passive form instead of the active form in the reading passage.,This evening,Ill be talking to Dr Richard Fairhurst,whose new book The New Age of Invention has just been published.In addition,important advances have been made in medicine and environmental science thanks to increasing computer power.Ive also been told that youre an inventor yourself.Nothing like this has been invented yet and Id say were a long way from an invention like that at the moment!,Present perfect passive,a.I guess you have been asked about the title of your book before.b.New inventions like 3D printers have been used to make replacement hearts and bone parts.,Summarize,Summarize the structure,and the usage of the present perfect passive.,Present perfect passive,Summarize,Structure,have/has been done,Present perfect passive,Summarize,Usage,a.表示一个被动的动作或状态从过去开始一直持续到现在，常与 for 或 since 引导的时间状语从句连用。The plan has been discussed for nearly two hours.,Present perfect passive,Summarize,Usage,b.表示一个被动的动作在说话之前已完成，强调过去的动作对现在造成的影响或结果，通常与 already,yet,just,never,recently等副词连用。The problem has already been solved.,Present perfect passive,Application,Read the short passage and answer questions.,Q1.What does this passage talk about?,Q2.How has 3D printing affected our lives?,Within the next 80 years,our lives may be changed beyond recognitionby 3D printing.It has already affected many things in our lives,right down to the food we eat.For instance,some restaurants in London have served 3D-printed hamburgers to customers.But perhaps the most significant success that people have achieved to date is in medicine.They have made human body parts,including a beating hearts,with 3D printing technology.And it is not just humans who are benefiting in Brazil,people have given anew 3D-printed shell to a turtle injured in a forest fire!,Present perfect passive,Application,Read the short passage and answer questions.,Q1.What does this passage talk about?,Within the next 80 years,our lives may be changed beyond recognitionby 3D printing.,Q2.What has been affected by 3D printing?,The food we eat;medicine;the animals,Present perfect passive,Application,Read the underlined sentences again.,Rewrite the underlined parts using the present perfect passive.,Within the next 80 years,our lives may be changed beyond recognitionby 3D printing.It has already affected many things in our lives,right down to the food we eat.For instance,some restaurants in London have served 3D-printed hamburgers to customers.But perhaps the most significant success that people have achieved to date is in medicine.They have made human body parts,including a beating hearts,with 3D printing technology.And it is not just humans who are benefiting in Brazil,people have given anew 3D-printed shell to a turtle injured in a forest fire!,1.It has already affected many things in our lives.,2.Some restaurants in London have served 3D-printed hamburgers to customers.,Many things in our lives,have already been affected.,3D-printed hamburgers,to customers,have been served,in some restaurants in London.,3.But perhaps the most significant success that people have achieved to date is in medicine.,4.They have made human body parts,including a beating heart,with 3D printing technology.,But perhaps the most significant success that,has been achieved,to date,is in medicine.,Human body parts,including a beating heart,have been made,with 3D printing technology.,5.People have given a new 3D-printed shell to a turtle injured in a forest fire!,A new 3D-printed shell,has been given,to a turtle injured,in a forest fire!,Read the two passages again and answer.,1.Which one is better?,2.Why do you think so?,Within the next 80 years,our lives may be changed beyond recognitionby 3D printing.It has already affected many things in our lives,right down to the food we eat.For instance,some restaurants in London have served 3D-printed hamburgers to customers.But perhaps the most significant success that people have achieved to date is in medicine.They have made human body parts,including a beating hearts,with 3D printing technology.And it is not just humans who are benefiting in Brazil,people have given a new 3D-printed shell to a turtle injured in a forest fire!,1,Within the next 80 years,our lives may be changed beyond recognitionby 3D printing.Many things in our lives have already been affected,right down to the food we eat.For instance,3D-printed hamburgers have been served to customers in some restaurants in London.But perhaps the most significant success that has been achieved to date is in medicine.Human body parts,including a beating heart,have been made with 3D printing technology.And it is not just humans who are benefiting in Brazil,a new 3D-printed shell has been given to a turtle injured in a forest fire!,2,Read the two passages again and answer.,1.Which one is better?,2.Why do you think so?,The second passage is better.,Because it highlights the change which 3D printing has made.,past,now,Dr Moores lab,What has happened?,past,now,Dr Moores lab,Compare and describe,The robot has been damaged.,The lock on the door has been broken.,The window has been broken.,Two computers have been stolen.,Beakers and test tubes have been destroyed.,The book case has been opened,and some files have been taken away while others have been thrown everywhere.,Show time,Make a draft of your phone call and act it out.,Show time,Sample,Police:This is 110.What can I do for you?Me:This is Susan.I am calling to report a burglary.Police:Where is it?Me:It is in my school.Dr Moores lab has been broken into.So much damage and loss have been made.,Police:Anybody hurt?Me:No.But Er Police:Take it easy.Can you describe the scene to me?Me:Er The lock on the door and the window have been broken.The robot has been damaged.Dr Moores two computers have been stolen where there are a lot of important documents stored.,The book case has been opened,and some important files have been taken away while others have been thrown everywhere.Beakers and test tubes have been destroyed and glass fragments have scattered all over the floor The lab is in a mess now.Police:Ok.I got it.We will be there in a minute.Dont touch anything please.Me:I am here waiting for you.Please hurry up.,Think and share.,What do you learn from this activity?,Keep calm when we are in an emergency.,Lets check!,1.Know the structure and usage of the present perfect passive.2.Can change sentences from the present perfect active into the present perfect passive in the passage properly.3.Can use the present perfect passive in different contexts properly.,Homework,1.Draw a mind-map to sum up the present perfect passive.2.Write a short passage to describe the change of your hometown,using the present perfect passive.,
