Bài giảng Tiếng Anh 8 - Unit 7: Pollution, Lesson 6 - Trường THCS Thái Sơn

 Good morning! Unit 7: Pollution
 PERIOD 60: 
 SKILLS 2 VOCABULARY
• algal (n) tảo
• bloom (v,n) nở hoa
• discharge (n,v) phóng điện
• Power plant (n) nhà máy nhiệt điện
• Power station (n) trạm phát điện LISTENING
1. Describe what you see in the pictures and talk about the
 relationship between them.
 Listen and check your answers.
 -The first picture shows an algal bloom in coastal seawater.
 - The second picture shows the cooling towers from a power station.
 They are both related to thermal pollution. 2. Listen to part of a conversation on TV between a
 reporter and an environmentalist about thermal pollution.
Complete the diagram. Use no more than three words for
 each blank. Causes
 - Power plants using water to (3)
 ..cool equipment.
 - Discharge of cold water into 
 (4).warm rivers
Thermal 
pollution: Effects
- Definition: - (5)..Warm water .decreasing oxygen
(1)hotter - Less oxygen harming (6) 
or ..fish populations
(2)..cooler
 - (7)Harmful algal blooms being 
 another effect
 - Can change (8)..color of the water 
 and (9)poison fish.
 SOLUTIONS
 Building cooling towers to 
 (10)..cool down the water. WRITING
3. Work in pairs. Discuss the causes and effects 
 of one type of pollution in your area. Make 
 notes in the diagram. . 
 pollution
 Definition: 
 EFFECTS
 CAUSES
 Air pollution
 Definition: Air pollution occurs when the 
 air contains gases, dust, fumes or outdour 
 in harmful amounts.
• Causes: industrial waste, exhaust from 
 cars and plane
• Effects: causing diseases, death to human, 
 damage to other living organisms such as 
 animals and food crops, or the natural or 
 built environment. 4. Imagine that you two are writing an article for 
the local newspaper about a type of pollution in 
your area. One of you writes about the causes 
and the other writes about the effects of the 
pollution type you have just discussed in 3.
5. Read each other’s work and put them together
 to make a complete article. Suggested article
 Air Pollution
Air pollution is now a serious problem for those living my 
 area. Air pollution may be any industrial waste, gases , 
 dust, fume or odour in harmful amounts which are 
 harmful for man, vegetation, animals or buildings.
Air pollution can have some different causes. The major 
 source of air pollution is industrial waste from 
 factories. The second is exhaust from cars, motor 
 vehicles and planes...Agricultural activities as crop 
 spraying with pesticides and herbicides are another one.
Air Pollution can have dramatic effects. It causes various 
 dangerous diseases, death to human, damage to other 
 living organisms such as animals and food crops, or the 
 natural or built environment. The buildings look dirty. 
So, what should we do to reduce air pollution? HOMEWORK
-Learn by heart vocab.
-Rewrite the article and do exercises E1,2 ( PAGE 10-
 workbook).
- Prepare part : LOOKING BACK & PROJECT Thanks for your attendance!