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(共18张PPT)
Unit 6
UNIT 6
Earth first
To think about some environmental problems we are facing
To express your ideas on how these environmental problems arise by watching a video and looking at some pictures
To discuss with your partners on how to protect the earth
Major environmental problems we are facing currently:
Climate Change气候变化
Biodiversity Loss生物多样性减少
Plastic Pollution塑料污染
Land Degradation土地退化
Marine Ecosystem Destruction海洋生态系统破坏
Deforestation森林砍伐
Air Pollution空气污染
Agricultural Issues农业问题
Fossil Fuels化石燃料
Melting Glaciers and Sea Level Rise 冰川融化和海平面上升
Food and Water Security食物和水资源安全
Technological Development and Resource Competition技术发展与资源竞争
Have you noticed some serious problems the earth is suffering from
Watch the video and answer the questions.
1. Which of the facts in the video do you find most alarming
Deforestation
Species’ extinction
Ocean pollution
Shortage of fresh water
Plastic pollution
Loss of glaciers
2. What does the video want to tell us
Severe environmental problems we are facing nowadays make our future uncertain. It's time for everyone to take action now and make our planet a greener and safer place for our future generations.
________ square kilometers of forest disappear every year
around _______ trees are cut down each day just to make toilet paper
each day, around _______ to _______ species of plants and animals become extinct --- nearly _______ times the natural rate of extinction
130,000
25,000
150
200
1,000
Listen and complete the missing numbers.
over ________ animals are killed by ocean pollution each year
_________ people don't have clean drinking water
a plastic bottle can take ______ years to break down
the ice caps are more than ______ thinner than they were ______ years ago
1 million
1 billion
450
50%
40
Look at the cartoons and answer the questions.
1. What environmental problem does each cartoon refer to
water pollution
deforestation
air pollution
global warming
2. What are the causes of these problems
Use following expressions to help you:
ignore, cause/lead to/result in, people's awareness of environmental protection, fossil fuel burning...
3. What do you think is the most serious environmental problem we face today What should be done to help solve it
Use following expressions to help you:
invest, recycle, carpooling, classification of waste, green/clean energy...
Choose one of the most serious environmental problems and discuss the causes of these problems and think about possible solutions.
air pollution
Causes: the burning of fossil fuels, agricultural activities, exhaust from factories and industries, mining operations, indoor air pollution
Possible solutions:
taking public transportation;
conserving energy;
understanding the concept of Reduce, Reuse and Recycle;
emphasis on clean energy resources;
using energy efficient devices;
...
Make a survey about water pollution around you, then write a short report in 80 words, including existing problems, causes, damage and possible solutions.

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