资源简介

(共17张PPT)
Talk about Air Pollution
---Unit 3 Environmental Protection
At the end of the lesson, you will be able to：
explore the causes and effects of the London smog, and propose solutions to it.
learn to summarize information by taking notes of key points.
express opinions by applying the patterns of ”referring to common knowledge”.
Learning Objectives
Air pollution by burning fossil fuels
Air pollution by burning coal
the smog in London
What are these pictures about
What is the relationship between them
Cause
Effect
Lead-in
Where:
What:
Why:
New energy vehicle
Charging station
environmental-friendly,
green energy-saving
What is it And what do you think about it
Electric automobiles(new energy vehicles) are the breakthrough point for China to develop new energy automobiles.
Lead-in
When doese air pollution occur
What are the major causes
What are the negative effects on human
Watch a video and answer the following questions.
It occurs when gases, smoke and dust get into the air and make it dirty.
Air pollution is mainly caused by volcano eruption, dust storm, wildfires, smog from buring fossil fuels.
For human, air pollution will cause headache, dizziness, nasal irritation lung diseases, etc.
Pre-listening
Listen to the interview with an air pollution expert and decide whether the statements are true (T) or false (F).
1. The expression “smog” originated in Britain and means a combination of “smoke” and “fog”.
2. Smog became a severe problem in Britain because people at that time burnt lots of fossil fuels.
3. The worst smog in British history happened in London in 1942.
4. The Great Smog of London claimed 5,000 lives.
5. Later, the UK government ordered people not to burn wood in their homes.
T
F
T
F
T
F
T
F
T
F
√
√
√
√
√
1952
4000
coal
While-listening
Hostess：Good morning，listeners.Air pollution is a serious problem，with urban populations particularly 1.________________ from smog. Ben Drake is an expert on air pollution，and he is joining us today to talk about 2.____________. Ben，where does the word “smog” come from
Ben Drake：“Smog” comes from 3.________________________ 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
Ben Drake：Well，Britain was one of the first 4.____________________ 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 5._________________.
Hostess：That sounds terrible！What problems did it cause
at risk
this issue
a combination of
industrial countries
as thick as soup
Listen again and fill in blanks. What’s the structure of the interview
Background information
Causes
While-listening
Ben Drake：Smog 6.__________________________________ 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 7.______________________.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
Ben Drake：Smog 8.___________ everyone，especially to children，old people，and those with heart or lung problems.We have to reduce smog and 9._________________for everyone’s health and wellbeing.We should replace coal with cleaner forms of energy, and we need to use new 10.____________________.We have the technology，but we must use and develop it.
Hostess：Yes.Let’ s hope we can make some big changes.Thanks，Ben.
Ben Drake：Thank you.
caused many health issues
take immediate action
is harmful to
improve air quality
energy-efficient vehicles
Negative effects
Solutions
While-listening
Summarize information of the interview
In active listening, summarizing helps you review the key points of a speaker’s message. In order to write a good summary, you must the most important points as you listen. When summarizing, you need to be as as possible and use your own words.
take notes
concise
Take notes
Be concise
Use your own words
Listen for the “cue”
LISTENING SKLL
Listening tip
Listen again and take notes on what the expert said. Then summarise the information you got from the interview.
Ben Drake, an expert on air pollution, is being interviewed on the radio. He said that smog was a severe problem _________________ century in Britain. At that time, Britain was experiencing a boom in ________. Factories and homes _______________, which created smog. He also mentioned the heavy smog in London ____________
____________________________________________ in 1952. Later the UK government restricted ____________ in homes and forced factories to __________________________. As smog is harmful to everyone, the expert advised us to ____________________________
___________, use ___________________________, and further develop _________________.
in the early 20th
industry
used lots of coal
was
particularly bad and caused over 4,000 deaths
burning coal
move away from city centres
of energy
new energy-efficient vehicles
green technology
replace coal with cleaner forms
While-listening
How can we stress the problem
Referring to common knowledge
Everyone knows that...
Most people think that...
As is known to all,...
There is no doubt that…
We all know that...
It is obvious that…
Post-listening
How can we explain cause and effects
Causes Effects
... is caused by ...
... is due to ...
... results from ...
... is a result of ...
... because of ...
... is brought about by ...
... has an impact/effect on ...
... leads to ...
... results in ...
... contributes to ...
... gives rise to ...
... has consequences for ...
Post-listening
How can we appeal to active measures
Call for measures
It is necessary/ important/ essential/crucial/ to ...
It is recommended that ...
We call on ... to ...
It is time to ...
Let's start by...
More acitve actions are greatly urged...
Post-listening
What environmental problems does our city face
smog
water pollution
white/plastic pollution
light pollution
noise pollution
water waste
garbage disposal
Speaking
Speaking
My Small Environmental Protection Actions
Walk to school every day instead of taking a private car
Save paper and print on both sides
Remind family members to sort garbage
Plant many trees……
Start practicing from TODAY!
Speaking
“We should promote harmony between man and nature and build a community with a shared future for mankind.”
-- Chinese President Xi Jinping
我们要促进人与自然和谐共生，
构建人类命运共同体

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