What pollutant do you think of when you see the above pictures? Soot Black carbon... Ways to reduce soot emissions... Nowadays we know a lot about the link between carbon dioxide C02 em
Trang 1Welcome to our class
Trang 2Look at the following picture and guess the words
Trang 3F _r _s _f _r _ o e t i e
Trang 4D _e _e _ v _h c _e i s l e i l
Trang 5I e m _l i g c e t n
Trang 6G o a w r i _g l b l a m n
Trang 7C _a _ b _r _i _g o l u n n
Trang 8What pollutant do you think of when you see the above pictures?
Soot (Black carbon)
Trang 9UNIT 3: THE GREEN MOVEMENT
Black carbon pollution
Trang 10Task 1 Answer the questions.
1 What is soot?
2 Do you think soot is harmful? Why or why not?
Trang 11Vocabulary
Trang 12Soot /sut/
Trang 13Soot particle /'pɑ:tikl/
Trang 14Diesel vehicle /'di:zl/ /'viəkl/
Trang 15Incomplete combustion complete combustion
/kəm'bʌst∫ən/
Trang 16Bronchitis /brɒŋ'kaitis/
Trang 17- Soot (n) /sut/: Bồ hóng, nhọ nồi
- Particle (n) /'pɑ:tikl/: Phân tử
- Diesel vehicle (n.phr) /'di:zl/ /'viəkl/
Động cơ sử dụng dầu diezen
- Incomplete combustion (n.phr)
Sự cháy dở
- Bronchitis /brɒŋ'kaitis/: Viêm phổi
Trang 18Task 2. Read the following article about soot
pollution Choose the appropriate heading (a-d) for each paragraph.
a Soot and global warming
b. The effect of soot on human health
c. The origin of soot
d. Ways to reduce soot emissions
Trang 19Nowadays we know a lot about the link between carbon dioxide (C02) emissions and global warming
However, we seem to be unaware of one very dangerous pollutant, soot also called black carbon
1.
Soot comes from the incomplete combustion or coal, oil, wood and other fuels In other words diesel
engines, vehicle exhaust pipes, farming machines, construction equipment, or simply fires in grills, fireplaces, and stoves are potential sources of soot It appears in our daily life and can easily affect every one of us
2. _
Soot like all black things absorbs sunlight and heats up the atmosphere According to recent research, it is the second most damaging greenhouse gas after C02, and twice as harmful to the climate Although black carbon remains in the atmosphere for no more than seven days it is particularly damaging to frozen areas Soot emissions might be responsible for the quick melting of the Arctic Controlling black carbon can help to slow down global warming
3. _
Soot does not only have an impact on globs warming and climate change, but is also unhealthy A soot
particle is very tiny - smaller than dust and mould, and about 1/30 the width of a human hair It can easily go into our bloodstream and lungs via the nose and throat As a result, breathing in the tiny particles can cause asthma attacks, heart disease, bronchitis and many other respiratory illnesses
4. _
Large quantities of man-made soot enter the atmosphere every year The effects are most damaging
regionally, especially in South and East Asia, Latin America and parts of Africa In developing countries,
reducing soot emissions can be achieved by replacing traditional stoves with clean, alternative fuel cookers and heaters Installation of filters to remove black carbon from diesel vehicles can also reduce soot Changing
to electric or hydrogen vehicles will also reduce the impact on the environment
In conclusion, reducing black carbon will have immediate benefits in slowing down global warming and the melting of the Arctic snow and ice It would also prevent many soot-related deaths and illnesses
Task 2. Read the following article about soot pollution Choose the appropriate
heading (a-d) for each paragraph.
c. The origin of soot
a Soot and global warming
b. The effect of soot on human health
d. Ways to reduce soot emissions
Trang 201. We know about carbon dioxide and its impact on global warming, but we………
carbon dioxide.
are………
using……… for cooking and heating.
Task 3. Work in pairs Complete each of the following
sentences with no more than five words.
know little about soot.
oil, wood, and other fuels.
second most damaging greenhouse gas
smaller than dust and mould/very
tiny.
clean, alternative fuel stoves
Trang 21Task 4 Discuss with a partner Are soot emissions a
problem in your community or in Viet Nam in general?
A: Do you see soot in the environment around you?
B:……… A: What are the sources of soot in your community?
B:………
A What health problems does soot cause to the people in your community?
Trang 22Homework
Trang 23Thank you