2020新外研版必修三英语Unit 3 The world of science(2)-2ppt课件（含教案+学习任务单）.pptx

1、必修三 Unit 3 The world of science (2) 高一年级 英语 Lesson 2 Using language Present 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

2、passive in the passage. 3. Try to use the present perfect passive in different contexts properly. invention The New Age of Invention Revise advance Para. 4 Para. 12 Find out sentences with the two words below. The New Age of Invention Revise Find out sentences with the two words below. invention 1.

3、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 The New Age of Invention Rev

4、ise 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

5、 telephone and the radio. Para. 4 The New Age of Invention Revise 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. The New Age of Invention Revise Find out senten

6、ces 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.

7、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 Structure have/has done 肯定句 主语 + have/has + done. 否定句 主语 + have/has not + done. 一般疑问句 Have/Has + 主语 + done? 特殊疑问句 疑问词 + have/has +

8、 主语 + done? Revise Present perfect Usage 1.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

9、 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

10、 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

11、 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 b

12、ook 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)?

13、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

14、 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 bef

15、ore. 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 t

16、he 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 befor

17、e. 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

18、 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

19、 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 passiv

20、e 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

21、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 writt

22、en 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

23、 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 environme

24、ntal 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 befo

25、re. 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 肯定式 主语+have/has been done. 否定式 主语+have/has not been done. 一般

26、疑问句 Have/Has + 主语 + been done? 特殊疑问句 疑问词 + have/has + 主语 + 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

27、 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 beyo

28、nd recognition by 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 hav

29、e 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! Present perfect passive Application Read the short passage and answer questions. Q1

30、. What does this passage talk about? Within the next 80 years, our lives may be changed beyond recognition by 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

31、 parts using the present perfect passive. Within the next 80 years, our lives may be changed beyond recognition by 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. Bu

32、t 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

33、 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

34、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,

35、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

36、 next 80 years, our lives may be changed beyond recognition by 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 h

37、ave 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

38、may be changed beyond recognition by 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 da

39、te 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 be

40、tter? 2. Why do you think so? The second passage is better. Because it highlights the change which 3D printing has made. Present perfect passive Application past now Dr Moores lab What has happened? Present perfect passive Application past now Dr Moores lab Compare and describe The robot has been da

41、maged. 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

42、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: Tak

43、e 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

44、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. Th

45、ink 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.