外研版（2019）必修 第三册Unit 3 The world of science Using language精品课件(共58张PPT)

(共58张PPT)
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 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. 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
Revise
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
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 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
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 + 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
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, I’ll 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.
I’ve also been told that you’re an inventor yourself.
Nothing like this has been invented yet and I’d say we’re 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
肯定式 主语+have/has been done.
否定式 主语+have/has not been done.
一般疑问句 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 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 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 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!
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 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 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. 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. 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 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 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 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 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.
Present perfect passive
Application
past
now
Dr Moore’s lab
What has happened
Present perfect passive
Application
past
now
Dr Moore’s lab
Compare and describe
①
①
②
②
③
③
④
④
⑤
⑤
⑤
⑤
⑥
⑥
①
①
②
②
③
③
The robot has been damaged.
①
②
③
The lock on the door has been broken.
The window has been broken.
④
④
④
Two computers have been stolen.
⑤
⑤
⑥
⑥
Beakers and test tubes have been destroyed.
⑤
⑥
⑤
⑤
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 Moore’s 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 Moore’s 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. Don’t 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.
Let’s 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.