Unit 3 Environmental Protection Using language 课件(27张PPT)人教版(2019)选择性必修第三册

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Unit 3 Environmental Protection Using language 课件(27张PPT)人教版(2019)选择性必修第三册

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(共27张PPT)
选择性必修三Unit 3 Environmental Protection
Using Language
Write a report on an environmental issue
Learning objectives:
By the end of the class, you will be able to:
listen for the topics and detailed information of an interview;
summarize information from the listening material;
talk about the causes and effects of air pollution in your city and brainstorm the effective measures to deal with the problems of air pollution.
Part 1
Pre-listening
Pre-listening
Look at the pictures below and discuss the questions in groups.
What can you see in these pictures
Are there similar environmental problems in our city or county
What does the last picture mean to us
a new form of energy
new energy-efficient vehicles
The smoke is blowing out from the chimneys.
The sky is grey.
The coal is being burned.
The car is being charged.
We’ll listen to an interview about air pollution. Listen carefully.
Part 2
While-listening
Activity 1. Listen for the topics in an interview.
Where does the word “smog” come from
What can be done about it
What problems did it cause
Why was it so bad then
How can it be solved
What is “smog”
origin of “smog”
causes of the smog
effects of the smog
measures to relieve the smog
Listen to an interview with an air pollution and tick what the hostess has asked in this interview.




Tip 1(听力策略):
When we listen to an interview, we can listen for the questions raised by the host or hostess to get all topics of the interview.
Activity 2. Listen again and learn about the cause, time and effect of the smog.
Smog is a combination of ______ and ______.
smoke B.mist C. fog D. haze
Smog became a severe problem because people at that time ___.
burnt woods B. burnt coal C. burnt oil D. burnt crops
The worst air pollution happened in London in ____.
1950 B. 1951 C. 1952 D. 1953
The great smog in London claimed over_______ deaths.
A. 3,000 B. 4,000 C. 5,000 D. 6,000
5. How many measures does the expert mention to reduce smog
and improve air quality
A. 2 B. 3 C. 4 D. 5
Tip 2(听力策略):
Read the questions and try to locate the topic in an interview.
origin
causes
effects
effects
measures
Activity 3. Listen again and take notes on what the expert said. Then summarise the information you got from the interview.
(origin of the smog) Ben Drake, an expert on air pollution, is being interviewed on the radio. He said that smog was a severe problem _______________ century in Britain.
(causes of the smog) At that time, Britain developed as an ________ country. Factories and homes _______________, which created smog.
(effects of the smog) He also mentioned the heavy smog in London was extremely bad and cause ____________________ in 1952. Later the UK government banned ______________ in homes and forced factories to ___________________________.
(measures to relieve the smog) As smog is harmful to everyone, the expert advised us to replace coal with _______________________, use new ______________ vehicles, and further develop the green _______________.
in the early 20th
industrial
used lots of coal
over 4,000 deaths
burning coal
cleaner forms of energy
move away from city centres
energy-efficient
technology
Tip 3(听力策略):
Summarise information:
In active listening,summarising helps you review the key points of a speaker's message. In order to write a good summary, you must take notes of the most important points as you listen.When summarising, you need to be as concise as possible and use your own words.
Suppose you were a person who experienced the worst smog in London in 1952,
1. could you tell why the smog in London was called a "pea soup" at that time
2. what would you do to protect yourself or to improve the air quality
3. what’s your opinion on sacrificing our environment for economic development
1. The smog was yellow and we would see thick gray fog, and smell heavy coal smoke everywhere.
2. To protect myself, I’d wear a mask, stay indoors, and avoid burning coal. To improve air quality, I’d support cleaner energy and stricter laws.
3. Sacrificing the environment for economic growth is short-sighted. Clean air and health are priceless and sustainable development ensures long-term prosperity(兴旺) for all.
Activity 4. Think further and answer the following questions.
Knowledge card
1. Similar color:
London’s smog appears as a thick yellow, yellowish green or black color.
2. Similar density(浓度):
London’s smog is so dense and thick, making the entire city seem covered in a thick
soup.
London’s smog VS A pea soup
Part 3
Post-listening
Good morning, listeners. Air pollution is a serious problem, with urban populations particularly at risk from smog. Ben Drake is an expert on air pollution, and he is joining us today to talk about this issue. Ben, where does the word “smog” come from
Hostess:
Ben Drake:
“Smog” comes from a combination of the words “smoke” and “fog”. It originated in Britain in the early 20th century, when smog was a severe problem.
Hostess: Why was it so bad then
Well, Britain was one of the first industrial countries and factories and homes used lots of coal. When burnt, the coal produced harmful emissions which created lots of smog. In London, they also called the smog a “pea soup” because it was as thick as soup.
Ben Drake:
A. Introduction to the theme and the interviewer
B. Leading in a topic
C. Views on the topic
D. Ending for an interview
Activity 5. Analyze the structure of an interview.
Hostess: That sounds terrible! What problems did it cause
Ben Drake:
Smog caused many health issues and killed many people. The worst case happened in London in 1952. Over a few days when the smog was particularly bad, 4,000 deaths were recorded. It was necessary to take immediate action. The UK government ordered people not to burn coal in their homes and forced factories to move away from city centres.
Hostess:
But smog is still an important issue in many places. What can be done about it
A. Introduction to the theme and the interviewer
B. Leading in a topic
C. Views on the topic
D. Ending for an interview
Ben Drake: Thank you.
Ben Drake:
Smog is harmful to everyone, especially to children, old people, and those with heart or lung problems. We have to reduce smog and improve air quality for everyone’s health and wellbeing. We should replace coal with cleaner forms of energy, and we need to use new energy-efficient vehicles. We have the technology, but we must use and develop it.
Hostess: Yes. Let’s hope we can make some big changes. Thanks,
Ben.
A. Introduction to the theme and the interviewer
B. Leading in a topic
C. Views on the topic
D. Ending for an interview
Types of pollution
London Your City
Cause
Solutions
coal
The government restricted burning coal and forced factories to move away from
city center.
What about your city
Activity 6. Group discussion and make a report.
Discuss the following questions in a group of four and choose one speaker to make a report. You can use the sample to help.
1. What do you think are the main causes of air pollution in your hometown
2. What are the effects of air pollution in your hometown
3. What measures can the government and we citizens do to reduce air pollution in our daily life
Sample:
Good morning, everyone. Today, I’ll talk about air pollution in _______, a growing problem affecting our health and daily lives.
According to our analysis, the causes of air pollution in _______ are ________, _________, and __________.
There is no doubt that air pollution has affected our daily life in many ways. For example, ___________(the effects of smog on sky, health, work efficiency...).
To relieve the problems of air pollution, the government should ______ and ______. Besides, it’s a duty for us citizens to _________ and ___________.
By working together, we believe that we can reduce smog and create a cleaner, healthier county. Thank you!
Choose Green Travelling
As individuals, we can …
Smog in China: measures
Plant Trees
As individuals, we can….
Smog in China: measures
Promote Green Energy
As governments, they can ...
Smog in China: measures
Make Vehicles Restriction Policy
As governments, they can ...
Smog in China: measures
Contents Excellent Good Average Things to be improved
listen for the topics and detailed information of an interview
summarize information from the listening material
talk about the causes and effects of air pollution in your city
brainstorm the effective measures to deal with the problems of air pollution
Assessment
Part 4
Homework
Homework
1. 假设你是李华,你的外国网友Tom来信询问你家乡是如何成功改善空气污染的。请你写一封回信,内容包括:
(1)家乡空气污染的原因;
(2)家乡空气污染的影响;
(3)政府和个人采取的措施以及最后的成果。
字数:80-100词左右。
2. 主题词汇复习及整理
(1) 复习本课与“空气污染”相关的词汇,并造句
(2) 搜索更多与“空气污染”相关的主题词,完善主题词库,如recycle, renewable energy, carbon footprint。
Sample
Dear Tom,
I’m glad to share how my hometown improved its air quality. Previously, air pollution was caused by heavy industries and vehicle emissions, leading to health issues and smog.
The government took strict measures, such as shutting down polluting factories, promoting electric vehicles, and planting more trees. As individuals, we also contributed by using public transport and reducing waste.
Now, the air is much cleaner, and everyone enjoys a healthier life. I hope this helps!
Best regards,
Xiao Ming

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