Unit 3 The world of Science Using language 课件(共22张PPT，内 镶嵌音频)-2025-2026学年外研版（2019）必修第三册

(共22张PPT)
新外研版 Book 3
Using Language
Unit 3 The world of science
Present perfect passive
现在完成时的被动语态
Learning objectives
1.To master the structure and usage of present perfect passive.
2.To change sentences from the present perfect active into the present perfect passive.
3.To use the present perfect passive to talk about how some inventions have changed your life.
01
Lead-in
1.An ally ______________.
2.An enemy ______________.
3.Your turret _________________.n
4.You ______________.
5.You _________an enemy.
6.Your team ____________ a turret.
has been slain
have been slain
have slain
has been slain
has been destroyed
has destroyed
have/has done
have/has been done
slay-slew-slain
destroy-destroyed
-destroyed
02
Basic structure
Compare the different verb forms.
Active（主动）
Passive（被动）
A turret has been destroyed.
have/has done
have/has been done
Your team has destroyed a turret.
宾语
主语
Basic
structure
03
Presentation
Dr Richard Fairhurst has written a world-famous book The New Age of Invention.
宾语
主语
谓语
1.把主动句的宾语变为被动句的主语
2.把主动句的谓语变为被动语态形式
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.
Change the present perfect active into the present perfect passive.
Many things in our lives have already been affected.
Have a try: rewrite the underlined parts using the present perfect passive.
（P38）
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, 3D - printed hamburgers________________ (serve) to customers in some restaurants in London. But perhaps the most significant success that __________________ (achieve)to date is in medicine. human body parts, including a beating heart __________________(make)with 3D printing technology. And it is not just humans who are benefiting – in Brazil, a new 3D - printed shell __________________( give) to a turtle injured in a forest fire!
02
Practice 1（p38）
have been served
has been achieved
have been made
has been given
04
表示被动的动作在说话之前已经完成，强调过去的动作对现在造成的影响或产生的结果
时间状语
already
yet
recently / lately
so far
by now
up to/till now
Basic Usages
“China speed” has been given new meanings in the past decade.
in the last/past+时间段
在过去的十年间，“中国速度”已经被赋予了新的含义。
时间状语
Virtual reality has been used by him since last month.
②表示一个被动的动作或状态从过去开始一直持续到现在，并可能继续持续下去
since+时间点
for+时间段
Basic Usages
04
practice 3
Both learning sites ___________________ (visit) by over 10,000 people since last year.
This keyboard ____________________ (use) for a long time.
Up to now, three films _________________ (show) in that small village.
have been visited
has been used
have been shown
Basic Usages
04
与一般过去时的被动语态was/were done的区别
难点突破
timeline
past
now
一般过去时
（时间点）
现在完成时（时间段）
Basic Usages
04
③
难点突破
②与一般过去时的被动语态的区别
The park was opened to the public last year.
一般过去时的被动语态强调动作发生在过去某个特定时间点，
所表示的动作或状态与现在的情况没有联系。
The park has been opened to the public since last year.
现在完成时的被动语态强调过去动作造成的影响或状态持续到现在，即现在公园仍向公众开放。
Basic Usages
04
③
基本用法
难点突破
1. In 1908, the Olympic Games ___________(hold) here for the first time.
2. The Olympic Games _____________(hold)in many countries since the 1900s.
与一般过去时的被动语态的区别
practice 4
was held
has been held
Basic Usages
04
现在完成时的
被动语态
Basic Structure
Basic Usages
summary
have/has been done
表示被动的动作在说话之前已经完成，强调过去的动作对现在造成的影响或产生的结果
②表示一个被动的动作或状态从过去开始一直持续到现在，并可能继续持续下去
Basic Structure
Basic Structure
already
yet
recently / lately
so far
by now
up to/till now
in the last/past+时间段
since+时间点
for+时间段
③与一般过去时被动语态的区别：一般过去时的被动语态强调动作发生在过去某个特定时间点，与现在无关。现在完成时的被动语态强调过去动作造成的影响或状态持续到现在.
04
Practice 5: fill in blanks with the correct forms.
1.The first smartphone_______________(introduce)by Apple in2007, changing communication forever.
2.Since its launch,online shopping _________________(adopt)by millions of people because of its convenience.
3.The electric light bulb_____________(invent)by Edison in the 19th century.
4.Many traditional markets ___________________ (replace) by e-commerce platforms in the last 10 years.
was introduced
has been adopted
have been replaced
was invented
04
Practice 5: fill in blanks with the correct forms.
5.Bike sharing systems___________(set up)in Beijing in 2016,and so far they____________________(expand) to 200 cities.
6.The data about climate change_____________(collect)last year.
7.The AI translation app____________________(download)over 5 ,million times recently.
8.Smart home techonology_________________(create)to simplify life,and it ___________________(apply)in our daily life up to now.
were set up
was collected
has been downloaded
was created
have been expanded
has been applied
05
Discussion
Talk about the change of your life caused by some inventions ,using present perfect passive where appropriate.
High speed railway 高铁
Mobile payment 移动支付
Online shopping 网购
Bike sharing 共享单车
Today,many new technologies,such as, online shopping, has been created,making...
05
Discussion
One possible version
Science and invention have significantly influenced our life. Today,many new technologies,such as, smartphones, have been created,making communication and information access easier.The development of high-speed railways has a profound impact. Long journeys have been made much more comfortable and time-efficient. Smart home devices have been introduced into our life,which makes us control lights and other appliances remotely. E-books have replaced traditional ones,allowing us to carry a library in our pockets.In addition,online payment systems have developed ,making transactions more convenient.Thanks to these inventions,our lifestyle has changed forever.
Student A : Hi everyone! Let me introduce my household robot. _______________________________________(这个机器人在外表上更像是一个人,而不是一台机器)!
Student B : Really What can it do
Student C : Yes, tell us more!
Student A: ___________________________________________（提示：做家务，陪同购物，下棋，照顾老人小孩等）!
Student D : That’s cool! Can it help in emergencies
Student A: Of course! ______________________________________________（如果一位老人突然病了,它可以叫医生帮忙）
Student B: Wow, I want one too!
Activity7 Evaluation
to know the structure and usage of the present perfect passive
to change sentences from the present perfect active into the present perfect passive
to use the present perfect passive to talk about the change of life.
Activity7 Evaluation
I have learnt
Result
Result:Excellent! Good! Not bad!
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.
Thanks!