【公开课】Unit3+Reading+and+thinking+课件人教版（2019）选择性必修第三册.pptx

人教版（2019）英语 选择性必修三Unit 3 ENVIRONMENTALPROTECTIONReading and Thinking目目录录Warming up01Pre-reading02While-reading03Post-reading04Warming upWarming up01What can you see in the photo?/Whats happening in the photo?Where is it?What do you know about glaciers melting on earth?What will happen if glaciers are melting faster than before?How do you feel when you look at the picture?Look and Discuss:Look and Discuss:Look and Discuss:Look and Discuss:Warming upWarming up01Earth provides enough to satisfy every mans needs,but not every mans greed.Mohandas K.Gandhi1.What is the difference between needs”and greed”?2.Can you brainstorm some examples of needs”and greed”?3.How do you understand the quote?How is it related to the theme of the unit?Think:Think:Warming upWarming up01莫罕达斯卡拉姆昌德甘地Mohandas Karamchand Gandhi ,1869-1948，also known as Mahatma Gandhi,the Indian nationalist movement and Congress Party leaders.He is Indias Sun Yat-sen,is also Indias greatest political leaders.He led the country towards independence,from British colonial rule.His non-violent philosophy,that is,he said the satyagraha,impact on the worlds nationalists and those who seek peaceful change of the international campaign.Mohandas Karamchand Gandhi（18691948），也称作“圣雄甘地”，是印度民族主义运动和国大党领袖。他既是印度的国父，也是印度最伟大的政治领袖。他带领国家迈向独立，脱离英国的殖民统治。他的“非暴力”的哲学思想，也就是他说的“satyagraha”，影响了全世界的民族主义者和那些争取和平变革的国际运动。n.无行无行动，不作不作为极端天气极端天气错误信息信息Pre-readingPre-reading02What is the graph about?What information can you get from it?In which year did the temperature start to increase quickly?Why?What do you think may have caused the global temperature rise?Pre-readingPre-reading02Pre-readingPre-reading02Have you ever seen the photo before?What might be the story behind it?What happened to the polar bear?How do you feel when you see the photo?What do you think might have caused the polar bears death?Do you think it is related to the global temperature rise?北极熊北极熊Climate change requires the worlds attentionWhile-readingWhile-reading03While-readingWhile-reading0312345While-readingWhile-reading03Divide the passage into four parts and find the main idea of each part.PartParagraphMain idea11-2The of dramatic climate change that had an impact on Earths ecology23The _ of the increase in the global average surface temperature34The of the rise in temperature45The to reducing greenhouse gas emissionsevidencecauseconsequencessolutionsWhile-readingWhile-reading03What happened to the polar bear in the photo?Why did the writer write about it?Can you use your words to describe how climate change have influenced the polar bears life?Careful readingCareful readingPara.1-2While-readingWhile-reading03Climate changelow sea-ice levelsbears could not hunthad to travel greater distances to find foodstarved to deathits dead body founduA polar bears dead body was founduStarved to deathuLow sea-ice levelsuClimate changeuThe bear could not hunt sealsuHad to travel greater distance to find foodWhile-readingWhile-reading03Why is the natural greenhouse effect important and necessary?What are the consequences of high greenhouse gas emissions?Para.3While-readingWhile-reading03Greenhouse effectnatural greenhouse effectkeeping Earths climate warm and habitableman-man greenhouse effectcausing Earths surface temperature to rise quickly if too much heat energy is trappedWhile-readingWhile-reading03What is a diagram?Have you ever seen any diagrams in your physics or geography coursebooks?When do authors use diagrams in their writing?Whats the benefit of using diagrams?While-readingWhile-reading03What is the main idea of this paragraph?Can you use your words to summarise it?What are the consequences of the global temperature rise?Why did the author mention the climate scientists warning?Para.4While-readingWhile-reading03The rise in temperatureextreme weather/natural disastersextreme rainstorms,heat wavesserious damage,costing human lives,economic lossesled toexampleresultsWhile-readingWhile-reading03Group Discussion:Group Discussion:What is the authors purpose of writing this text?What policies can the government make to reduce greenhouse gas emissions?Give your suggestions.How can individuals reduce“carbon footprint”?Why is a question left at the end?Para.5While-readingWhile-reading03What writing techniques does the author use in order to achieve his/her purpose?By using diagramsBy giving examplesBy explanationBy asking questions by comparisonBy leaving a question at the end of the articleWhile-readingWhile-reading03Do you think climate change is the result of mans greed?How should we balance our needs and sustainable nature?What difficulties are there when dealing with climate change and how to overcome them?Write a composition with the title:Global warming in my eyesnWhat is global warmingnHow does it come aboutnWhat harmful effects dose it causenHow to stop itHomeworkHomeworkPost-readingPost-reading04Thank you!Thank you!