选修模块8 Unit 22 Environmental Protection Lesson 1 Global Warming课件(21张)

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名称 选修模块8 Unit 22 Environmental Protection Lesson 1 Global Warming课件(21张)
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科目 英语
更新时间 2019-07-16 18:39:51

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课件21张PPT。Unit 22 Environmental Protection Lesson 1 Global Warming What is global warming?Causes of global warmingvehiclesfactoriesburning of the fuelsConsequences of global warmingWhat is global warming?Global warming means
an average increase in the Earth’s temperature which leads to climate change.Pair-workWhich countries do you think contribute more to global warming?
a. Developed countries
b. Developing countries Task 1:Read the text and match the heads with the paragraphs.
1.Draw readers’ attention to the topic by asking questions.
2.What should human beings do.
3.What is global warming.
4.Consequences of global
warming.
5. What cause global warmingPara 1.
Para 2.
Para 3.
Para 4.
Para 5.Task 2: Word studyScan the text for these following words and work out their meanings.
consensus, bounce, agriculture, coincidence, condemn, reservation, sarifice, advocate1. In the last few decades, scientists have reached consensus and reported that human beings are causing changes in the earth’s climate
2. Without these naturally occuring gases, the sun’s rays would bounce back into space leaving the Earth cold and impossilbe to live on.agreementjump backThe greenhouse effect3. Given this data, it seems that the link between human activities and rising global temperatures is not merely a coincidence.
4. if we continue to produce carbon dioxide and other gases in such huge quantities, we are condemning life on Earth巧合destroying5. Some government, for example, the USA’s federal government, express reservations about whether global warming is really caused by human activities.
6.Experts advocated that each person play their part to save the earth.保留意见put forward and supportMatch the Key Words with their Chinese meanings. consensus
bounce
agriculture
coincidence
condemn
reservation
sacrifice
advocate反弹
农业
巧合
一致的意见
保留
宣判死刑
主张,提倡
牺牲Task 3 Careful reading
changes in the Earth’s climateglobal warmingenvironmental problemsan average increaseleads to
be pinned on human activitiesin such huge quantitiesdisastersreduce the amount of carbon dioxideplay their part1. What is controlling the temperature of the Earth?
2. Are greenhouse gases necessary for life on Earth?
3. What human activities are causing global warming?
4. By how much has the global average temperature increased in the last 100 years?
5. How can we help solve the problem of global warming?Task4 Answer the following questions.
Post reading(voice your opinion)What else can we do to help reduce greenhouse gases?The recycling symbol buy the recycled productsRecycled products Taking action on global warming (or climate change) is similar. In some cases, it only takes a little change in lifestyle and behavior to make some big changes in greenhouse gases reductions. For other types of actions, the changes are more significant. When that action is multiplied by the 1.3 billion people in China. Or the 6 billion people worldwide, the savings are significant. What difference can we make?Homework1.Finish Ex.5 on P7
2.Do Ex5,6 on your handouts