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Unit 3 The world of Science Using language 語法講解課件(共21張PPT)-2025-2026學(xué)年外研版(2019)必修第三冊

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Unit 3 The world of Science Using language 語法講解課件(共21張PPT)-2025-2026學(xué)年外研版(2019)必修第三冊

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(共21張PPT)
新外研版 Book 3
Unit 3 Present Perfect Passive
Grammar in context:How Innovation
Shapes Our World
Learning objectives
1.語言能力
Master the structure :have/has been+V-ed;Convert active sentences to passive sentences.
2.思維品質(zhì)
View the development of technology dialectically.
3.文化意識(shí)
Discuss China’s contributions(e.g high speed railways,mobile payment)using passive voice.
01
Lead-in:Describe the pitctures.
1.Medical robots ______________(use) in Chinese hospitals since 2020.
2.Solar energy ________________(adopt) in rural schools.
have been used
has been adopted
02
Basic structure
Compare the different verb forms.
Active(主動(dòng))
Passive(被動(dòng))
5G has been developed (by scientists).
主語+ have/has done
主語+have/has been done+by施動(dòng)者
Scientists have developed 5G
Basic
structure
03
Presentation
Dr Richard Fairhurst has written a world-famous book The New Age of Invention.
賓語
主語
謂語
1.把主動(dòng)句的賓語變?yōu)楸粍?dòng)句的主語
2.把主動(dòng)句的謂語變?yōu)楸粍?dòng)語態(tài)形式
3.把主動(dòng)句的主語變?yōu)閎y的賓語,放在被動(dòng)句的謂語之后,by短語可以省略
A world-famous book The New age of Invention
has been written
by Dr
Change the present perfect active into the present perfect passive.
Richard Fairhurst.
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
時(shí)間狀語
Virtual reality has been used by him since last month.
②表示一個(gè)被動(dòng)的動(dòng)作或狀態(tài)從過去開始一直持續(xù)到現(xiàn)在,并可能繼續(xù)持續(xù)下去
since+時(shí)間點(diǎn)
for+時(shí)間段
Basic Usages
04
04
表示被動(dòng)的動(dòng)作在說話之前已經(jīng)完成,強(qiáng)調(diào)過去的動(dòng)作對(duì)現(xiàn)在造成的影響或產(chǎn)生的結(jié)果
時(shí)間狀語
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+時(shí)間段
在過去的十年間,“中國速度”已經(jīng)被賦予了新的含義。
practice 3
In China,high- speed railway networks________________(build) across the country in the past decade..
Mobile payment systems_________________(apply)widely since 2015,_________(make)cashless societies possible.
has been built
have been appled
Basic Usages
04
making
與一般過去時(shí)的被動(dòng)語態(tài)was/were done的區(qū)別
難點(diǎn)突破
timeline
past
now
一般過去時(shí)
(時(shí)間點(diǎn))
現(xiàn)在完成時(shí)(時(shí)間段)
Basic Usages
04

難點(diǎn)突破
②與一般過去時(shí)的被動(dòng)語態(tài)的區(qū)別
The first phone was released in 2007.
一般過去時(shí)的被動(dòng)語態(tài)強(qiáng)調(diào)動(dòng)作發(fā)生在過去某個(gè)特定時(shí)間點(diǎn),
所表示的動(dòng)作或狀態(tài)與現(xiàn)在的情況沒有聯(lián)系。
現(xiàn)在完成時(shí)的被動(dòng)語態(tài)強(qiáng)調(diào)過去動(dòng)作造成的影響或狀態(tài)持續(xù)到現(xiàn)在,即現(xiàn)在公園仍向公眾開放。
Smartphones have been integrated into daily life since 2007,changing how we communicate.
Basic Usages
04

基本用法
難點(diǎn)突破
1. Bike sharing systems___________(set up) in our city in 2018. Since then,
carbon emissions__________________(reduce) by 15%.
2.TikTok ___________________ (download) over 2 billion times last year globally,but its users____________________(criticize) recently for data privacy issues.
與一般過去時(shí)的被動(dòng)語態(tài)的區(qū)別
practice 4
was set up
has been reduced
Basic Usages
04
was downloaded
have been criticized
現(xiàn)在完成時(shí)的
被動(dòng)語態(tài)
Basic Structure
Basic Usages
summary
have/has been done
表示被動(dòng)的動(dòng)作在說話之前已經(jīng)完成,強(qiáng)調(diào)過去的動(dòng)作對(duì)現(xiàn)在造成的影響或產(chǎn)生的結(jié)果
②表示一個(gè)被動(dòng)的動(dòng)作或狀態(tài)從過去開始一直持續(xù)到現(xiàn)在,并可能繼續(xù)持續(xù)下去
Basic Structure
Time
Adverbials
already
yet
recently / lately
so far
by now
up to/till now
in the last/past+時(shí)間段
since+時(shí)間點(diǎn)
for+時(shí)間段
③與一般過去時(shí)被動(dòng)語態(tài)的區(qū)別:一般過去時(shí)的被動(dòng)語態(tài)強(qiáng)調(diào)動(dòng)作發(fā)生在過去某個(gè)特定時(shí)間點(diǎn),與現(xiàn)在無關(guān)。現(xiàn)在完成時(shí)的被動(dòng)語態(tài)強(qiáng)調(diào)過去動(dòng)作造成的影響或狀態(tài)持續(xù)到現(xiàn)在.
04
Practice 5: Fill in blanks with the correct forms.
1.The first smartphone_________________(introduce)by Apple in 2007, 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.
Today,many new inventions , such as ... has been created , making...
06
Debate
“Technology has improved life” vs “Technology has caused problems”.
Each side has to use at least 3 sentences of present perfect passive.
e g. Privacy has been threatened by AI apps.
Student A : Hi everyone! Let me introduce my household robot. _______________________________________(這個(gè)機(jī)器人在外表上更像是一個(gè)人,而不是一臺(tái)機(jī)器)!
Student B : Really What can it do
Student C : Yes, tell us more!
Student A: ___________________________________________(提示:做家務(wù),陪同購物,下棋,照顧老人小孩等)!
Student D : That’s cool! Can it help in emergencies
Student A: Of course! ______________________________________________(如果一位老人突然病了,它可以叫醫(yī)生幫忙)
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!
Student A : Hi everyone! Let me introduce my household robot. _______________________________________(這個(gè)機(jī)器人在外表上更像是一個(gè)人,而不是一臺(tái)機(jī)器)!
Student B : Really What can it do
Student C : Yes, tell us more!
Student A: ___________________________________________(提示:做家務(wù),陪同購物,下棋,照顧老人小孩等)!
Student D : That’s cool! Can it help in emergencies
Student A: Of course! ______________________________________________(如果一位老人突然病了,它可以叫醫(yī)生幫忙)
Student B: Wow, I want one too!
1. Basic homework: Draw a mind-map to sum up the present perfect passive.
2. Practical homework :Write a short passage to describe the change of your hometown,using the present perfect passive.
3. Expansive homework: Interview the elders and record changes in life tools with passive sentences.
Student A : Hi everyone! Let me introduce my household robot. _______________________________________(這個(gè)機(jī)器人在外表上更像是一個(gè)人,而不是一臺(tái)機(jī)器)!
Student B : Really What can it do
Student C : Yes, tell us more!
Student A: ___________________________________________(提示:做家務(wù),陪同購物,下棋,照顧老人小孩等)!
Student D : That’s cool! Can it help in emergencies
Student A: Of course! ______________________________________________(如果一位老人突然病了,它可以叫醫(yī)生幫忙)
Student B: Wow, I want one too!
THANKS

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