新人教版 选择性必修三 U3 Reading and Thinking.pptx

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1、本课件已在中国版权保护中心登记作品著作权，本课件已在中国版权保护中心登记作品著作权，未经许可，禁止商用、分享、转载！未经许可，禁止商用、分享、转载！版权提示Reading and Thinking:Discuss climate change【版本：新人教册别：选择性必修三版本：新人教册别：选择性必修三】UNIT 3 ENVIRONMENTAL PROTECTIONLearning ObjectivesBy reading,explain causes and negative effects of global warming;Be aware of the importance of cu

2、tting greenhouse gases and take effective action to do it;By teamwork,present how to solve the problem of global warming in groups.ContentsPre-readingLanguage PointsWhile-readingHomeworkPost-readingPre-readingWhats happening in the video?Where is it?Whats happening in the video?Where is it?The video

3、 showed us Glacier melting,we can see a large piece of ice breaking off a large glacier.It is likely to be in the Arctic or Antarctica or somewhere nearby.Global warming causes it.The rising temperature of the Earth is the primary reason glaciers have started to melt more,and this climate change can

4、 be directly tied back to human activity.What causes this phenomenon?Global warmingWhat will happen if glaciers are melting faster than before?sea level riseLess fresh waterDisappearance of speciesClimate changeWhat other consequences may global warming bring about?Global warmingnatural disasterseco

5、nomic lossescoastal cities submergedextreme weatherunpredictable future of humananimals dyingLook at the title and graph of the passage,What kind of reading passage is it?How do you know?(P26-27)Expository text(说明文)Because in the expository text,the authors sometimes use some graphs or diagrams in t

6、heir essays in order to convince their readers.These graphs and diagrams often come from scientific research reports and other reliable resources.What is the graph about?What information can you get from it?The graph shows the change in the Global Surface Temperature between 1920 and 2016.It shows t

7、he temperature anomaly(反反常常现现象象),which shows how much the temperature has risen above what it would usually be at a base level.Global warming平均气温距平值平均气温距平值年份年份Have you ever seen the photo before?What might be the story behind it?I havent seen this photo,but I have seen photos like it.The story is th

8、at the polar bear starved to death because it could not find enough to eat.Do you think it is related to the global temperature rise(Global warming)?Lets read the passage(P26-27).While-readingTask 1:Find the key sentence of each paragraph and summarize the main idea of each part:Para 1Para 2The evid

9、ence of dramatic climate change that had an impact on Earths ecology瘦骨嶙峋Para 3The cause of the increase in the global average surface temperaturePara 4Para 5The consequences of the rise in temperatureThe solutions to reducing greenhouse gas emissionsSummaryPart ParagraphMain idea1-2345The evidence o

10、f dramatic climate change that had an impact on Earths ecologyThe cause of the increase in the global average surface temperatureThe consequences of the rise in temperatureThe solutions to reducing greenhouse gas emissionsTask 2:Read for detailsRead Para 1-2 and answer the questions:What happened to

11、 the polar bear in the photo?Why did the writer write about it?What evidence of climate change can you find in these two paragraphs?Find the cause and effect that can show how climate change has influenced the polar bears life?Task 2:Read for detailsRead Para 1-2 and answer the questions:What happen

12、ed to the polar bear in the photo?Why did the writer write about it?The polar bear in the photo died of starvation.The writer wrote about it because it showed one of the effects of rising temperatures due to climate change.Task 2:Read for detailsRead Para 1-2 and answer the questions:What evidence o

13、f climate change can you find in these two paragraphs?A warming ocean and atmosphere along with melting ice and risingsea levels provide evidence of a dramatic change in the global climate.Task 2:Read for detailsRead Para 1-2 and answer the questions:Find the cause and effect that can show how clima

14、te change has influenced the polar bears life?climate changelow sea-ice levelsbears could not hunthad to travel greater distances to find foodstarved to deathits dead body foundTask 2:Read for detailsRead Para 3 and find information about“greenhouse effect”._ greenhouse effect_ greenhouse effectcaus

15、ing Earths surface temperature _ if too much heat energy is _keeping Earths climate _ and _naturalman-madewarmhabitableto rise quicklytrappedTip:Benefit of using diagramsDiagrams are very useful tools that can be used to brainstorm ideas,map out processes,show cause and effect relationships,explain

16、a new idea or concept,and so on.When you read an essay about scientific issues,you can try drawing a diagram,which will not only allow you to visualise the problems more clearly but also can help demonstrate your creative thinking and problem-solving.Pair workCreate a diagram describing how the gree

17、nhouse effect works.Task 2:Read for detailsRead Para 4 and sort out the text information relationship.The rise in temperatureextreme weather/natural disastersextreme rainstorms,heat wavesserious damage,costing human lives,economic lossesleads toexamplesresultsIn Para 4,why did the author mention the

18、 climate scientists warning?Because it is essential that we take action and so it needs to be brought to everyones attention.Task 2:Read for detailsRead Para 5 and answer the questions:How can individuals reduce“carbon footprint”?What is the authors purpose of writing this text?We as individuals can

19、 also reduce our“carbon footprint”by restricting the amount of carbon dioxide our lifestyles produce.The authors purpose is to inform the readers and inspire them to do whatever they can to deal with this problem.Earth provides enough to satisfy every mans needs,but not every mans greed.Mohandas K.G

20、andhiSuch as shelter,air,food,water and the means to do something productive and meaningful.Greed is a desire that can never be satisfied.Needs mean all basic living thingsThe quote is used here to suggest that consumption powered by greed is a prime cause of environmental degradation(环境恶化).Over log

21、ging,polluted water resources Mohandas K.Gandhi(1869-1948),often known as Mahatma Gandhi,in civil rights.He organised peasants and farmers to stand up to excessive taxes and discrimination by the British Empire,of which India was still a colony.He is commonly known as the“Father of the Nation”in Ind

22、ia,also being called“Bapu”,meaning father.He is known for many other popular and inspiring sayings,such as:The future depends on what we do in the present.Be the change you want to see in the world.Post-readingTeam workDo you think climate change is the result of human activity?Give your reasons.Who

23、 do you think should take responsibility for dealing with climate change?What can we do?I do think that climate change is the result of human activities because the majority of scientists also think so,and also because global temperatures have followed the rise in global emissions and population.I t

24、hink we all need to take responsibility for dealing with it.Individuals can change their behaviour and try to reduce their carbon footprint,while companies and governments can do the same on the larger scale.Language Points Important phrases(P26 P27)1melting ice2provide evidence of 3a dramatic chang

25、e4skin and bones5trap the heat6sustain life7huge amounts of正在融化的冰正在融化的冰为为提供依据提供依据/证据证据急剧变化急剧变化吸收热量吸收热量皮包骨皮包骨大量的大量的维系生命维系生命8fossil fuels9pay a high price10long-lasting changes11make policies 12seize the opportunity13map out14cause and effectImportant phrases(P26 P27)化石燃料化石燃料付出巨大的代价付出巨大的代价持久的变化持久的变化抓住

26、机会抓住机会制定政策制定政策规划；安排规划；安排因果因果Important sentences(P26 P27)句式分析句式分析同同位位语语从从句句：大大多多由由从从属属连连词词_引引导导,常常常常跟跟在在order,report,wish,decision,suggestion,belief,doubt,fact,hope,message,news等等抽抽象象名名词词的的_，一一般般用用来来解解释释或或说说明明这这些些名名词词的的具具体体含含义义或或内容内容。1.There is little doubt _ Earth is getting warmer and warmer.(P26)2

27、.The“natural”greenhouse effect refers to the fact _ heat from the sun enters the atmosphere and warms Earths surface as short-wave radiation.(P26 P27)that后面后面thatthat“天然”温室效应指的是来自太阳的热量以短波辐射的形式进入大气层，使地表变暖。毫无疑问，地球正变得越来越温暖。Important sentences1.They expressed the hope _ they would come over to China soo

28、n.2.Word has come _ some American guests will come to our college for a visit next week.3.He cant answer the question _ he got the money from his home yesterday.4.Do you have any idea _ is actually going on in the classroom?5.The problem _ we should have the meeting in the hall now must be decided a

29、t once.即学即用thatthathowwhatwhetheralong with 连接前后两个主语时，谓语动词应和连接前后两个主语时，谓语动词应和_那个主那个主语保持一致，即语保持一致，即“就远原则就远原则”。句式分析句式分析2.A warming ocean and atmosphere along with melting ice and rising sea levels provide evidence of a dramatic change in the global climate.(P26)Important sentences(P26)前面的前面的海洋和大气变暖，以及冰

30、层融化、海平面上升，都为全球海洋和大气变暖，以及冰层融化、海平面上升，都为全球气候急剧变化提供了依据。气候急剧变化提供了依据。1.A library with five thousand books _(offer)to the nation as a gift.2.All but one _(be)here just now.3.WeChat,as well as Ding Talk,_(play)an important part in daily communication nowadays.即学即用is offeredwereis playingImportant sentencesC

31、ompare and FindI am really sorry to have given you so much trouble.He was believed to have been a reporter.I expect to have read the book by the weekend.I meant to have called you last night.3.An expert who has studied polar bears for many years said that from the position of its dead body,the bear

32、appeared to have starved and died.(P26)动词不定式完成时动词不定式完成时Important sentences(P26)一位长期研究北极熊的专家说，从尸体的姿势看，这只像是饿死的。4.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.(P26)caused by cli

33、mate change 在句中作在句中作_。句式分析句式分析Important sentences(P26)后置定语后置定语专家称，气候变化导致的海冰面降低意味着北极熊无法像以前那样捕食海豹，于是它只能长途跋涉去寻找食物。1.Prices of daily goods _(buy)through a computer can be lower than store prices.2.The prize of the game show is$30,000 and an all-expense-_(pay)vacation to China.3.The disco,digitally recor

34、ded in the studio,_(sound)fantastic at the party now.即学即用Important sentencesboughtpaidsoundsv-ing 短语在句短语在句子子中作中作_。句式分析句式分析Important sentences(P27)结果状语结果状语6.Greenhouse gases in the atmosphere,such as methane and carbon dioxide,trap some of the heat,keeping Earths climate warm and habitable.(P27)大气层中甲

35、烷、二氧化碳等温室气体吸收了部分热量，从而使地球保持气候温暖、适宜居住。(P27)即学即用1._(consider)the reasons mentioned above,we should take effective measures to protect our environment.2.The leader stayed up all night,_(think)of what to do the next day.3._(not receive)her reply,he decided to send another e-mail to her.Consideringthinkin

36、gNot having receivedImportant sentences 构词法构词法“-wide”表示表示“范围内的（地）范围内的（地）”statewide _ _ countrywide _ industrywide _拓展拓展7.There is strong and comprehensive evidence _ the rise in temperature has led _ an increase in extreme weather and natural disasters worldwide,not only causing serious damage,but a

37、lso _(cost)human lives.(P27)thattocosting全行业的全行业的全州范围内的（地）全州范围内的（地）全国性的全国性的Important sentences(P27)确凿、全面的证据表明，温度上升导致全球极端天气和自然灾害增多，不仅造成严重破坏，而且使人丧命。restrict(v.)限制，限定（数量、范围等）限制，限定（数量、范围等）8.We as individuals can also reduce our“carbon footprint”by restricting the amount of carbon dioxide our lifestyles

38、produce.(P27)Language points:Important sentences(P27)作为个人，我们可以通过限制生活方式产生的二氧化碳量来减少我们的“碳足迹”。restrictrestrict the number of students per class the number of students per class toto 10 10 将每个班的学生人数限定为将每个班的学生人数限定为将每个班的学生人数限定为将每个班的学生人数限定为1010人人人人Access to the club Access to the club is restricted to is re

39、stricted to members only.members only.俱乐部仅对会员开放。俱乐部仅对会员开放。俱乐部仅对会员开放。俱乐部仅对会员开放。I I restricted myself to drinking restricted myself to drinking one cup of milky tea a day.one cup of milky tea a day.我控制自己每天只喝一杯奶茶。我控制自己每天只喝一杯奶茶。我控制自己每天只喝一杯奶茶。我控制自己每天只喝一杯奶茶。拓展运用1.The earliest studies have suggested a link

40、 between calorie _(restrict)and slowing aging.2.We make no restrictions _ the kinds of films we show as long as a films quality meets our standards.3.Dont restrict yourself to _(make)friends it will help increase your knowledge.restrictiononmakingImportant sentencesFill in the blanks with the vocabu

41、lary from the article(para 2)According to the scientists who found its dead body,all that _ the polar bear was“_”.An expert who has studied polar bears for many years said that from the position of its dead body,the bear appeared to have _ and died.Experts claimed that low sea-ice levels _ climate c

42、hange meant the bear could not _ seals as before,so it had to travel greater distances _ find food.This alarming case showed how the increase in temperature had an _ Earths _.remained ofskin and bonescaused byhuntin order toimpact onecologystarvedFill in the blanks with the vocabulary from the artic

43、le(para 3)The _ refers to the fact that heat from the sun enters the atmosphere and warms Earths surface as short-wave radiation.The heat is _ back into space at longer wave lengths.Greenhouse gases in the atmosphere,such as methane and _,trap some of the heat,keeping Earths climate warm and habitab

44、le.Without this process,Earth could not _ life.However,the“_”greenhouse effect has now become a big problem.When people produce huge amounts of extra greenhouse gases by burning _,more heat energy is _ in the atmosphere and causes Earths surface temperature to rise quickly.“natural”greenhouse effectreleasedcarbon dioxidesustainman-madefossil fuelstrapped HomeworkHomework1.Search for some rules and regulations set up by the government and explain the core idea as much as possible next period.2.Preview the reading on Page 32.THANK YOU