高中英语 Unit22 Lesson 1 Reading课件 北师大版选修8

1、Unit 22Environmental ProtectionIn this lesson, well be able to 1. understand some new words. 2. understand the text and get the key information. 3. talk about activities to protect the environment with the expressions learned in the text Earth is like a paradise（天堂）（天堂）, so it attracts the people fr

2、om other planet. But after their visiting, they think its more like a hell(地狱). Why do they think its more like a hell(地狱)?Its all because of WHO Is THE CULPRIT(肇事肇事者者)?WE are the ones causing ItAt some places, itIncreased TemperatureIncreased Temperature Melting MeltingPolar ice caps Polar ice caps

3、 At othersDONT CRYIts NOT too LATEACT NOW!Lets learn Which countries do you think contribute more to global warming? A. developed countriesB. Developing countriesWhy ? Word study Scan the text for these following words and work out their meanings. consensus, bounce, agriculture, coincidence, condemn

4、, reservation, sacrifice, advocateScanning 1. In the last few decades, scientists have reached consensus and reported that human beings are causing changes in the earths climate 2. Without these naturally occurring gases, the suns rays would bounce back into space leaving the Earth cold and impossib

5、le to live on.agreementjump back 3. 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巧合巧合destroying 5. Some

6、government, for example, the USAs 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.保留意见保留意见put forward and supportMatch the Key Words with their Chinese meanings. 1.conse

7、nsus 2.bounce 3.agriculture 4.coincidence 5.condemn 6.reservation 7.sacrifice 8.advocateA.反弹反弹 B.农业农业 C.巧合巧合D.一致的意见一致的意见E.保护保护 F.宣判死刑宣判死刑G.主张，提倡主张，提倡H. 牺牲牺牲Gist reading : Skim the text and match the heads with the paragraphs.1.Draw readers attention to the topic by asking questions. 2.What should hu

8、man 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.Careful reading(1)Para.1Introduction: Human beings are causing_ and it is believed that _ could be one of the biggest_ in the 21st century.Para.2Definition: Globa

9、l warming refers to_ in the Earths temperature that, in turn,_ climate change.Para.3Causes: Many experts insist that the blame for this global warming can mostly_. Para.4Consequences: If we continue to produce greenhouse gases_. There will be more_ such as floodings, heat waves and droughts.Para.5Ac

10、tion: All governments have a responsibility to _ and each person should_.Para.1Introduction: Human beings are causing_ and it is believed that _ could be one of the biggest_ in the 21st century.Para.2Definition: Global warming refers to_ in the Earths temperature that, in turn,_ climate change.chang

11、es in the Earths climateglobal warmingenvironmental problemsan average increaselead toPara.3Causes: Many experts insist that the blame for this global warming can mostly_. Para.4Consequences: If we continue to produce greenhouse gases_. There will be more_ such as floodings, heat waves and droughts.

12、Para.5Action: All governments have a responsibility to _ and each person should_.be pinned on human activitiesin such huge quantitiesdisastersreduce the amount of carbon dioxideplay their partAnswer questions and get free gifts! Come on !GOWhat is global warming?BACK What human activities are causin

13、g global warming?BACKHow can individuals help solve the problem of global warming ? As individuals we should play our part, we can make small changes like taking public transport, recyclingBACKBACKThere is nothing more we can do .the situation is now . the accident, she is now afraid of water.The scientist global warming at least three times in his speech. The factory wa