选修模块8 Unit 22 Environmental Protection Lesson 1 Global Warming 课件(28张)

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名称 选修模块8 Unit 22 Environmental Protection Lesson 1 Global Warming 课件(28张)
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更新时间 2019-07-16 19:03:52

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课件28张PPT。Unit22 Lesson1
Global WarmingThe beautiful earth is our home. Do you love to live here?How beautiful our home is!the melting of polar ice, no habitat for animals like polar bears and penguins droughtfloodCan we take the heat?The earth is sweating !!!
—Global Warming1. What is it?
2. What’s the impact of it?
3. What has caused it?
4. What can we do to slow it down? How much do you know about
global warming?Let’s read the text to find answers to these questions.Can we take the heat?Can we tolerate the heat?Can we tolerate global warming?Task 1: Understand the title and predict the content Task2:Skim the text and match the headings with the according paragraphs.Para 1.
Para 2.
Para 3.
Para 4.
Para 5.A. Causes
B. Solutions
C. Definition
D. Results
E. Introduction
ECADBWords studyScan the text for these following words and work out their meanings.
consensus, bounce, coincidence, condemn, reservation, advocateTask3:Scanning
In the last few decades, scientists have reached consensus and reported that human beings are causing changes in the earth’s climate.agreementarrangement Without these naturally occurring gases, the sun’s rays would bounce back into space leaving the Earth cold and impossible to live on.jumptake Given this data, it seems that the link between human activities and rising global temperatures is not merely a coincidence.
机会巧合two or more related events occur at the same time by chance if we continue to produce carbon dioxide and other gases in such huge quantities, we are condemning life on Earth.supportdestroyThe USA’s federal government, express reservations about whether global warming is really caused by human activities.
错误观点保留意见being not sure that it is entirely right. Experts advocated that each
person play their part to
save the earth. warnsuggestPronunciation consensus n.
coincidence n.
reservation n.
bounce v.
condemn v.
advocate v.一致意见
巧合
保留
反弹
注定毁灭
提倡Task4: Read the text carefully and answer the following questions.1) What is global warming?
2) Are greenhouse gases necessary for life on Earth?
3) By how much has the global average temperature increased in the last 100 years?
4)What human activities are causing global warming?
5)What are the results of global warming?
6) How can we help solve the problem of global warming?
Task4: Read the text carefully and answer the following questions.1) What is global warming?
2) Are greenhouse gases necessary for life on Earth?
Global warming is an average increase in the Earth’s temperature that leads to climate change.Yes, they are, because they trap heat from the sun in the Earth’s atmosphere. Otherwise the Earth would be cold and unsuitable for life.3) By how much has the global average temperature increased in the last 100 years?
4)What human activities are causing global warming?
By 1°F ( one degree Fahrenheit).Industry, agriculture, the cutting down of forests, the increase in transport and the burning of fuels are causing global warming.5)What are the results of global warming?
Cause terrible climate change.
2.Spread serious diseases and affect industries that rely on nature.
3.Melt the polar ice, raise sea levels, and flood many islands and cities.
6) How can we help solve the problem of global warming?We can make small changes like taking public transport, recycling, using low-flow shower heads, and buying energy-efficient light bulbs to help stop global warming. Task5: Voice your opinion
As a student,what do you think you can do to help reduce greenhouse gases in our daily life?YesterdayToday.TomorrowThat is one small step for a man;one giant leap for mankind.warmingtemperatureincreasedeffectscondemningrelevantGovernmentsreducechangesdisastersTask6:Read the text again and fill in the blanks.Homework:
Write a short passage about
what we can do to make our
environment more beautiful.
Thank you very much!

Goodbye!