【课件】Unit+3Reading+and+Thinking+课件人教版（2019）选择性必修第三册 (1).pptx

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1、ENVIRONMENTAL PROTECTION阅 读 Reading and Thinking Reading and ThinkingBy the end of the class,you will be able to:1.cultivate the sense of a shared future for mankind and fully understand your responsibilities;2.improve your predicting ability and cultivate the ability to predict main idea by looking

2、 at graph and pictures;3.learn to use mind map to deliver your idea.Learning objectivesWatch and thinkHave you experienced this kind of extreme weather?Does it affect our life?视频收入资源包，请自行插入。Look and thinkWhat is the graph about?In which year did the temperature start to increase quickly?why?可参考词块、句子

3、：it is about global warmingtemperature increasedmankinds activitygreenhouse effectburning fossil fuels(化石燃料)pay attention to the horizontal coordinate,vertical coordinate and graphs title.titleThe graph is about global surface temperature.In 2000,the temperature started to increase quickly.Mankinds

4、activity and greenhouse effect made the temperature increase.Look and predicttitleWhat can you get from the title and pictures?Look and predictWhat happened to the polar bear?What do you think might have caused the polar bears death?可参考词块、句子：deadclimate changestarve(饿死)could not find foodtravel long

5、 distance to find foodGlobal warming has caused animals dying.Are there any other consequences caused by global warming?Lets brainstorm.Brainstormconsequences of global warminganimals dyingnatural disastersextreme weathereconomic lossesthe rise of the sea levelunpredictable future of human说明文分类Look

6、and predictWhat kind of reading passage is it?ExpositionArgumentationNarrationDescriptionOthersNow the author wants to say something about the passage,whats the genre can be used to express his idea clearly?事理说明事物说明Genre knowledge说明对象p事物说明p事理说明语篇结构说明顺序说明方法p一般-特殊型p问题-解决型p匹配-比较型p时间p空间p逻辑举例、比较、分类、引用、数字

7、、定义、表格、图示1 12 23 34 4解读文章之后，你需要找出文章的说明顺序和说明方法。Fast readingStructureMain ideathe whole passagethe first part(Para _)the second part(Para _)the third part(Para _)the fourth part(Para _)Read and finish the formFast readingRead and finish the formCLIMATE CHANGE REQUIRES THE WORLDS ATTENTION We have know

8、n about climate change for decades.There is little doubt that Earth is getting warmer and warmer(see the graph).A warming ocean and atmosphere along with melting ice and rising sea levels provide evidence of a dramatic change in the global climate.In 2013.a lot of people were shocked by a news photo

9、 of a dead polar bear that was found on Norways Arctic island of Svalbard.According to the scientists who found its dead body,all that remained of the polar bear was“skin and bones”.An expert who has studied polar bears for many years said that from the position of its dead body,the bear appeared to

10、 have starved and died.Experts claimed that low sea-ice levels caused by climate change meant the bear could not hunt seals as before,so it had to travel greater distances in order to find food.This alarming case showed how the increase in temperature had an impact on Earths ecology.Fast readingRead

11、 and finish the form Then what is causing the increase in the global average surface temperature?Climate scientists often mention a key climate process called the“greenhouse effect”,which has two common meanings:the“natural”greenhouse effect and the“man-made”greenhouse effect.The“natural”greenhouse

12、effect refers to the fact that heat from the sun enters the atmosphere and warms Earths surface as short-wave radiation.The heat is released back into space at longer wave lengths.Greenhouse gases in the atmosphere,such as methane and carbon dioxide,trap some of the heat,keeping Earths climate warm

13、and habitable.Without this process Earth could not sustain life.However,the“man-made”greenhouse effect has now become a big problem.When people produce huge amounts of extra greenhouse gases by burning fossil fuels,more heat energy is trapped in the atmosphere and causes Earths surface temperature t

14、o rise quickly.Fast readingRead and finish the form There is strong and comprehensive evidence that the rise in temperature has led to an increase in extreme weather and natural disasters worldwide,not only causing serious damage,but also costing human lives.Climate scientists have warned that if we

15、 do not take appropriate actions,this warming trend will probably continue and there will be a higher price to pay.In fact,news reports are frequently broadcast about extreme rainstorms and heatwaves causing deaths and economic losses.Continued greenhouse gas emissions will result in further warming

16、 and long-lasting changes to the global climate.This requires the attention of people all over the world.Governments need to consider making policies and taking appropriate actions and measures to reduce greenhouse gas emissions.We as individuals can also reduce our“carbon footprint”by restricting t

17、he amount of carbon dioxide our lifestyles produce.It is our responsibility to seize every opportunity to educate everyone about global warming,along with its causes and impacts because this is the most serious issue affecting all of us on this planet.So what will you do to help?Fast readingStructur

18、eMain ideathe whole passagethe first part(Para _)the second part(Para _)the third part(Para _)the fourth part(Para _)Summarizerthe problem causing by global warming and ways to solve it1 to para 2345the evidence of dramatic climate change that had an impact on Earths ecologythe cause of the increase

19、 in the global average surface temperaturethe consequences of the rise in temperaturethe solutions to reducing greenhouse gas emissionsDetailed readingRead Paragraph 1-2 and answer the following questions Q1:What happened to the polar bear in the photo?Why did the author write about it?Q2:What is th

20、e authors purpose of using the graph and the photo?The polar bear was dead.In order to show the effect of global warming.Use the graph as a clue to demonstrate the global warming and the effect of global warming.Detailed readingPut the following sentences into correct orderThis alarming case showed

21、how the increase in temperature had an impact on Earths ecology.An expert who has studied polar bears for many years said that from the position of its dead body,the bear appeared to have starved and died.Experts claimed that low sea-ice levels caused by climate change meant the bear could not hunt

22、seals as before,so it had to travel greater distances in order to find food.In 2013,a lot of people were shocked by a news photo of a dead polar bear that was found on Norways Arctic island of Svalbard.According to the scientists who found its dead body all that remained of the polar bear was“skin a

23、nd bones”._Pay attention to the reasons and consequences researcherDetailed readingRead Paragraph 3 and finish the following tasksQ1:Why is the“natural”greenhouse effect important and necessary?Q2:What are the consequences of high greenhouse gas emissions?Q1:Why is the“natural”greenhouse effect impo

24、rtant and necessary?Then what is causing the increase in the global average surface temperature?Climate scientists often mention a key climate process called the“greenhouse effect”,which has two common meanings:the“natural”greenhouse effect and the“man-made”greenhouse effect.The“natural”greenhouse e

25、ffect refers to the fact that heat from the sun enters the atmosphere and warms Earths surface as short-wave radiation.The heat is released back into space at longer wave lengths.Greenhouse gases in the atmosphere,such as methane and carbon dioxide,trap some of the heat,keeping Earths climate warm a

26、nd habitable.Without this process Earth could not sustain life.However,the“man-made”greenhouse effect has now become a big problem.When people produce huge amounts of extra greenhouse gases by burning fossil fuels,more heat energy is trapped in the atmosphere and causes Earths surface temperature to

27、 rise quickly.Pay attention to the transitional wordsDetailed readingRead Paragraph 3 and finish the following tasksQ2:What are the consequences of high greenhouse gas emissions?Then what is causing the increase in the global average surface temperature?Climate scientists often mention a key climate

28、 process called the“greenhouse effect”,which has two common meanings:the“natural”greenhouse effect and the“man-made”greenhouse effect.The“natural”greenhouse effect refers to the fact that heat from the sun enters the atmosphere and warms Earths surface as short-wave radiation.The heat is released ba

29、ck into space at longer wave lengths.Greenhouse gases in the atmosphere,such as methane and carbon dioxide,trap some of the heat,keeping Earths climate warm and habitable.Without this process Earth could not sustain life.However,the“man-made”greenhouse effect has now become a big problem.When people

30、 produce huge amounts of extra greenhouse gases by burning fossil fuels,more heat energy is trapped in the atmosphere and causes Earths surface temperature to rise quickly.Pay attention to the transitional wordsDetailed readingRead Paragraph 3 and make a mind map to summarize Then what is causing th

31、e increase in the global average surface temperature?Climate scientists often mention a key climate process called the“greenhouse effect”,which has two common meanings:the“natural”greenhouse effect and the“man-made”greenhouse effect.The“natural”greenhouse effect refers to the fact that heat from the

32、 sun enters the atmosphere and warms Earths surface as short-wave radiation.The heat is released back into space at longer wave lengths.Greenhouse gases in the atmosphere,such as methane and carbon dioxide,trap some of the heat,keeping Earths climate warm and habitable.Without this process Earth cou

33、ld not sustain life.However,the“man-made”greenhouse effect has now become a big problem.When people produce huge amounts of extra greenhouse gases by burning fossil fuels,more heat energy is trapped in the atmosphere and causes Earths surface temperature to rise quickly.Detailed readingRead Paragrap

34、h 3 and make a mind map to summarizegreenhouse effectnatural greenhouse effectman-made greenhouse effectkeeping Earths climate warm and habitablecausing Earths surface temperature to rise quickly if too much heat energy is trapped in the atmosphereDetailed readingRead Paragraph 3 and draw a diagram

35、of greenhouse effectBefore drawing,discuss the following questions:nWhat is a diagram?Have you ever seen diagrams in your physics or geography textbook?nWhen do authors use diagrams in their writing?Pay attention to the key words you are usingDetailed readingRead Paragraph 3 and draw a diagram of gr

36、eenhouse effect参考示意图：Detailed readingRead Paragraph 4 and finish the following tasksQ1:What is the main idea of this paragraph?There is strong and comprehensive evidence that the rise in temperature has led to an increase in extreme weather and natural disasters worldwide,not only causing serious da

37、mage,but also costing human lives.Climate scientists have warned that if we do not take appropriate actions,this warming trend will probably continue and there will be a higher price to pay.In fact,news reports are frequently broadcast about extreme rainstorms and heatwaves causing deaths and econom

38、ic losses.the consequences of the rise in temperatureDetailed reading Mind map of paragraph 4Q2:What are the consequences of the global temperature rise?The _ in temperature_ weather and _ disasters_ rainstorms,_lead toserious damages _,_riseextremenaturalextremeheat wavescosting human liveseconomic

39、 lossesDetailed readingRead Paragraph 5 and finish the following tasksQ1:What is the authors purpose of writing this text?Continued greenhouse gas emissions will result in further warming and long-lasting changes to the global climate.This requires the attention of people all over the world.Governme

40、nts need to consider making policies and taking appropriate actions and measures to reduce greenhouse gas emissions.We as individuals can also reduce our“carbon footprint”by restricting the amount of carbon dioxide our lifestyles produce.It is our responsibility to seize every opportunity to educate

41、 everyone about global warming,along with its causes and impacts because this is the most serious issue affecting all of us on this planet.So what will you do to help?To call on peoples attention on global warming and hope people work together to solve this problem.Detailed readingRead Paragraph 5 a

42、nd finish the following tasksQ2:How can individuals reduce“carbon footprint”?Continued greenhouse gas emissions will result in further warming and long-lasting changes to the global climate.This requires the attention of people all over the world.Governments need to consider making policies and taki

43、ng appropriate actions and measures to reduce greenhouse gas emissions.We as individuals can also reduce our“carbon footprint”by restricting the amount of carbon dioxide our lifestyles produce.It is our responsibility to seize every opportunity to educate everyone about global warming,along with its

44、 causes and impacts because this is the most serious issue affecting all of us on this planet.So what will you do to help?By restricting the amount of carbon dioxide our lifestyles produce.Detailed readingRead Paragraph 5 and finish the following tasksQ3:Why is a question left at the end?Continued g

45、reenhouse gas emissions will result in further warming and long-lasting changes to the global climate.This requires the attention of people all over the world.Governments need to consider making policies and taking appropriate actions and measures to reduce greenhouse gas emissions.We as individuals

46、 can also reduce our“carbon footprint”by restricting the amount of carbon dioxide our lifestyles produce.It is our responsibility to seize every opportunity to educate everyone about global warming,along with its causes and impacts because this is the most serious issue affecting all of us on this p

47、lanet.So what will you do to help?Ask us to think and take appropriate actions to reduce greenhouse gas emissions.Detailed readingpay attention to the writing skillsQ:What writing techniques does the author use in order to achieve his/her purpose?use graph/picturesDetailed readingpay attention to th

48、e writing skillsQ:What writing techniques does the author use in order to achieve his/her purpose?give examplesDetailed readingpay attention to the writing skillsQ:What writing techniques does the author use in order to achieve his/her purpose?make contrastDetailed readingpay attention to the writin

49、g skillsQ:What writing techniques does the author use in order to achieve his/her purpose?a question left at the endSummaryMind map of the whole passageClimate change requires the worlds attentionPara 1-2Para 3Para 4Para 5the evidence of dramatic climate change that had an impact on Earths ecologyth

50、e cause of the increase in the global average surface temperaturethe consequences of the rise in temperaturethe solutions to reducing greenhouse gas emissionsSummaryLiterature circle roles used in this passagerolesSummarizerResearcher通过观察、对比、分类和总结等手段，概括语篇的问题、语言和结构特点通过快速阅读，概括段落大意Detailed readingAnaly