Unit 3 Environmental Protection Reading and Thinking ppt课件-（2022新）人教版高中英语选择性必修第三册(1).pptx

1、Unit 3 ENVIRONMENTAL PROTECTION010102020303By reading, explain causes and negative effects of global warming.By teamwork, present how to solve the problem of global warming in groups. Be aware of the importance of cutting greenhouse gases and take effective action to do it. . By the end of the class

2、, you will be able toWhat do you know about global warming?The effects are destructive as follows:1. The sea level to rise. 2. Severe storms, droughts, famines, the spread of diseases, and destruction of species.3. Wide animals died because of starvation.4. Forest fire occurs frequently because of t

3、he extreme hot weather.1. What is the graph about? What information can you get from it?The graph is about the change of global Surface temperature.It shows us that the global temperatureis rising steadily and continuously.2. What happened in the picture? Do you know what caused it?A polar bear was

4、dead and it is “skin and bones.”The ice is melting on the mountain.Global warming causes the melting of iceberg and some polar bears Suffer from the lack of food.Read the text and sum up the main idea of each paragraph: 01 01 0202030304040505Global climate is changing dramatically. An alarming case

5、about a bear starved to death. What is causing the increase in the global average surface temperature The destruction of the rise in temperature and the warning.Further possible changes to the global climate and our duty.Read the text and answer the questions:1.What is the evidence of global warming

6、?2.Why is the “natural ”greenhouse effect important and necessary?3.What are the consequence of high greenhouse gas emissions?4.Why did the author mention the climate scientists warning?5.What is the authors purpose of writing the text? Read the text and answer the questions:1.What is the evidence o

7、f global warming?Warming ocean and atmosphere; melting and rising sea level; the starved polar animals; the extreme weather and natural disasters.2.Why is the “natural ”greenhouse effect important and necessary?Because greenhouse gases trap heat and keeps the earth warm and habitable.3.What are the

8、consequence of high greenhouse gas emissions?People produce huge amounts of extra greenhouse gases and more heat energy is trapped, causing the temperature to go up. 4.Why did the author mention the climate scientists warning?Because the writer wants to warn us of the urgency of taking appropriate a

9、ctions to tackle the issue.5.What is the authors purpose of writing the text?To arouse our awareness of the problem of the rise of temperature and taking proper actions to address the global warming. Read the text again and create a diagram describing how the greenhouse effect works. Diagrams are ve

10、ry useful tools that can be used to brainstorm idea, map out processes, show cause and effect relationships, explain a new idea of 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 visualize the problems more clearly b

11、ut also can help demonstrate your creative thinking and problem-solving.1 1.What examples of extreme weather and disasters do you know? Make a list of them.2. Do you think it is human activity that caused global climate change? Give your reasons?3. Who should take responsibility to address this clim

12、ate change? What should you do to do to tackle it?1.What examples of extreme weather and disasters do you know? Make a list of them.Tsunami, floods, landslides, sandstorms, thunderstorms, earthquakes, hail, hot waves, cold waves, typhoons, tornados, hail.2.Do you think it is human activity that caus

13、ed global climate change? Give your reasons?3. Who should take responsibility to address this climate change? Yes. Human beings burn too much fossil fuels and produce large quantities of carbon dioxide, causing the temperature to go up steadily .It is everyones duty to take care of the earth and do

14、our part to tackle global warming.What you should do to do to tackle it?What you should do to do to tackle it?What you should do to do to tackle it?What you should do to do to tackle it?What you should do to do to tackle it?What you should do to do to tackle it?Climate is rising.EvidencedamagesPoten

15、tial further changescauseswarningactions to tackle the issue1. starve vi.&vt. (使使)挨饿挨饿; 饿死饿死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. 一位研究北极熊多年的专家说，一位研究北极熊多年的专家说，从北极熊尸体的从北极熊尸体的 位置来看，北极熊似乎是饿死的。位置来看，北极熊

16、似乎是饿死的。 【知识拓展】【知识拓展】(1)starve for渴望渴望, 极想得到极想得到starve to death饿死饿死(2) starvationn. 挨饿挨饿(3)starvingadj. 极想的极想的, 渴望的渴望的be starving for渴望得到某物渴望得到某物【巧学助记】【巧学助记】语境助记语境助记starveThe starvation is still a very serious problem today. Its said that one in seven people in the world is starving. Fortunately, the

17、 UN has taken a lot of measures to protect them from being starved to death. 今天饥饿仍然是一个非常严重的问题。据说世界上七分之一的人在挨饿。幸运今天饥饿仍然是一个非常严重的问题。据说世界上七分之一的人在挨饿。幸运的是的是, 联合国已经采取了很多措施来保护他们免于饿死。联合国已经采取了很多措施来保护他们免于饿死。【即学即练】【即学即练】语法填空。语法填空。(1)The lonely student is _(starve) for friendship. (2)We shall wait the enemy out,

18、and watch them starve to _(die). (3)Since the famine broke out, the number of people dying of _(starve) has been increasing. starvingdeathstarvation2. sustain vt. 维持维持； 遭受遭受；承受住承受住Without this process,Earth could not sustain. 没有这个过程，地球也无法维持下没有这个过程，地球也无法维持下去。去。【知识拓展】【知识拓展】sustain an interest保持兴趣保持兴趣s

19、ustain losses遭受损失遭受损失sustain ones weight承受某人的体重承受某人的体重sustainable development可持续发展可持续发展【即学即练】【即学即练】(1)They had sufficient food to _. 他们有足够的食物来维持生命。他们有足够的食物来维持生命。(2) _is a brand new idea of society development. 可持续发展是一种全新的社会发展观。可持续发展是一种全新的社会发展观。sustain lifeSustainable development3. fuel n. 燃料燃料；刺激性言行

20、刺激性言行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.当人们通过燃烧化石燃料产生大量额外的温室气体的时，更多的热能被困在大气当人们通过燃烧化石燃料产生大量额外的温室气体的时，更多的热能被困在大气中，导致地球表面温度迅速上升。中，导致地球表面温度迅速上升。【知识拓展】【知识拓展

21、】fossil fuel化石燃料化石燃料add fuel to the fire火上浇油火上浇油fuel ones interest in激起某人对激起某人对的兴趣的兴趣 【即学即练】【即学即练】(1)They are trying to find _for cars. 他们正试图找一种更干净的汽车燃料。他们正试图找一种更干净的汽车燃料。(2)同义替换。同义替换。His experience aroused (=_) his interest in becoming a chef. a cleaner fuelfueled【熟词生义】【熟词生义】How China has fueled the

22、 fashionable imagination for centuries? 几个世纪以来，中国是如何激发时尚想象力的几个世纪以来，中国是如何激发时尚想象力的?v. 启迪启迪, 刺激刺激, 煽动煽动4. trend n. 趋势；趋势； 趋向；动向趋向；动向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.气候科学家警告说，气候科学家警

23、告说，如果我们不采取适当的行动，这种变暖趋势可能会继续下去，人类将付出更高的代价。如果我们不采取适当的行动，这种变暖趋势可能会继续下去，人类将付出更高的代价。【知识拓展】【知识拓展】the latest trend in的最新潮流的最新潮流fashion trends时尚潮流时尚潮流tend to do sth. 倾向于做某事倾向于做某事【即学即练】【即学即练】(1)He always _one extreme to the other. 他总是倾向于从一个极端走向另一个极端。他总是倾向于从一个极端走向另一个极端。(2)网上购物在印度成为一种新趋势。网上购物在印度成为一种新趋势。译译: _.

24、tends to go fromOnline shopping is a new trend in India5. broadcast vt.&vi. 播送播送； 广播广播； 传播传播 n. 广播节目广播节目, 电视节目电视节目 In fact, news reports are frequently broadcast about extreme rainstorms and heatwaves causing deaths and economic losses. 事实上，有关特大暴雨事实上，有关特大暴雨和热浪造成死亡和经济损失的新闻报道经常播出。和热浪造成死亡和经济损失的新闻报道经常播出

25、。【知识拓展】【知识拓展】radio broadcast无线电广播无线电广播the live broadcast of直播直播be broadcast live进行直播进行直播【即学即练】【即学即练】(1)Regular _began in 1920. 常规的无线电广播始于常规的无线电广播始于1920年。年。(2)In addition, I hope the program _on Saturday evenings. 此外此外, 我希望这个节目能在星期六晚上播出。我希望这个节目能在星期六晚上播出。radio broadcastswill be broadcast6. restrict vt

26、. 限制限制； 限定限定； 束缚束缚We as individuals can also reduce our “carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce.我们作为个人也可以通过限制我们的生活方式产我们作为个人也可以通过限制我们的生活方式产生的二氧化碳的数量来减少我们的生的二氧化碳的数量来减少我们的“碳足迹碳足迹”。 【知识拓展】【知识拓展】restrict the number of限制限制的数量的数量restrict oneself to限制自己限制自己(to是介

27、词是介词)without restriction没有限制没有限制【即学即练】【即学即练】语法填空。语法填空。(1)Her diet restricts her _ 1, 500 calories a day. (2) Jan 23: Wuhan declared temporary outbound (向外的向外的) traffic _(restrict). (3)Mr Smith has a limited income _different goods he can buy. 史密斯先生的收入有限史密斯先生的收入有限, 这就限制了他能买的各种商品的数量。这就限制了他能买的各种商品的数量。t

28、orestrictionswhich restricts the number of7. seize vt. 抓住抓住； 夺取夺取； 控制控制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.我们有责任抓住每一个机会，向每一个人宣传全球变暖及其原

29、因我们有责任抓住每一个机会，向每一个人宣传全球变暖及其原因和影响，因为这是影响我们地球上所有人的最严重问题。和影响，因为这是影响我们地球上所有人的最严重问题。【知识拓展】【知识拓展】seize the opportunity/chance抓住机遇抓住机遇/机会机会seize the power夺取政权夺取政权【熟词生义】【熟词生义】Although he had read the passage over and over again, he didnt seize its general idea. 虽然他读了一遍又一遍，但还是没有虽然他读了一遍又一遍，但还是没有理解理解大意。大意。( )v

30、t. 理解理解, 领会领会【即学即练】【即学即练】(1)Suddenly, a tall man driving a golden carriage _(seize) the girl and took her away, disappearing into the woods. (2)You should _, or you will be regretful. 你应该抓住这次出国学习的机会你应该抓住这次出国学习的机会, 否则你会后悔的。否则你会后悔的。seizedseize the opportunity to study abroad8. There is little doubt th

31、at Earth is getting warmer and warmer. 毫无疑问毫无疑问, 地球正变得越来越暖和。地球正变得越来越暖和。【句式解构】【句式解构】there is little/no doubt that. . . 毫无疑问毫无疑问, that引导的是同位语从句。引导的是同位语从句。There is no doubt that to realize a goal, one needs not only knowledge but also good personalities. 毫无疑问，要实现一个目标，不仅需要知识，还需要良好的毫无疑问，要实现一个目标，不仅需要知识，还需

32、要良好的性格。性格。There is no denying that students should learn something about how computers work. 不可否认，学生应该学习计算机是如何工作的。不可否认，学生应该学习计算机是如何工作的。【名师点津】【名师点津】“there is no/little+抽象名词抽象名词+that. . . ”是存在句是存在句, 其中其中there不能换成不能换成it。【即学即练【即学即练 】语法填空。语法填空。(1)At present, there is little doubt _ the short message play

33、s an increasingly important role in our lives. (2)毫无疑问毫无疑问, 看电视会影响人们的行为举止。看电视会影响人们的行为举止。译译: _thatThere is no doubt that watching television can influence the way that peoplebehave. You can click here to add You can click here to add what you want to addt. It what you want to addt. It is easy to chan

34、ge.is easy to change.You can click here to add You can click here to add what you want to add. It what you want to add. It is easy to change.is easy to change.认知词汇认知词汇:basin,reform,undergo,penguin,moderate,imple-ment,annual,chaos,tropical,jungle拓展词汇：拓展词汇：1.sunmitsubmission2.starvestarvationstarving3

35、.sustainsustainable4.harmoniousharmony5.restrictrestriction6.sensitivesensesensible应用词汇：应用词汇：1.starve:starve for,starve to death,starvation,be starving for2.sustain :sustain an interest,sustain losses,sustain ones weight,sustainable development3. fuel:fossil fuel,add fuel to the fire,fuel ones inter

36、est in4.trend:the latest trend in,fashion trends,tend to do sth. 5.broadcast:radio broadcast,the live broadcast of,be broadcast live6.restrict:restrict the number of,restrict oneself to,without restriction核心短语核心短语重点句式重点句式There is little doubt that Earth is getting warmer and warmer. 毫无疑问毫无疑问, 地球正变得越

37、来越暖和。地球正变得越来越暖和。【句式解构】【句式解构】there is little/no doubt that. . . 毫无疑问毫无疑问, that引引导的是同位语从句。导的是同位语从句。on behalf ofhave an impact onbe trapped inin search of deal withas well asin response tohuge amounts of take appropriate actionsmake policies. 根据语境及汉语提示写出正确的单词根据语境及汉语提示写出正确的单词1. He started to study _ (生态

38、学生态学) and decided to devote his whole life to science. 2. The lazy bird had nothing in store for the winter, so it had to _(挨饿挨饿). 3. During the 1960s, many other famous rock groups _ (发布发布) songs about winter. 4. He _ (遭受遭受) a serious wound in the stomach. 5. Higher-income parents tended to have ch

39、ildren played with puzzles more _(经常经常). ecologystarvereleasedsustainedfrequently6. He is always watching CCTV news _(广播广播) on current affairs. 7. So the governments in the world try to forbid cutting down the trees and _(限制限制) the emission of wastewater. 8. In my opinion, only by facing difficultie

40、s bravely and _(抓住抓住) opportunities can one succeed. 9. The epidemic swept through North Africa and Europe and left families mourning _(遍及全球地遍及全球地). 10. My _(政策政策) in my business is “Ask advice, but use my common sense”. broadcastrestrictseizingworldwidepolicy. 完成句子完成句子1. He sent her some roses, _.

41、他给她送去了一些玫瑰他给她送去了一些玫瑰, 还有一封信。还有一封信。2. Despite this fact, French still _the English language. 尽管如此尽管如此, 法语仍然对英语产生了影响。法语仍然对英语产生了影响。along/together with a letterhad an impact/influence on3. Culture _or community with which we share common expressions that shape the way we understand the world. 文化指的是一个我们与

42、之共享共同表达方式的群体或社区文化指的是一个我们与之共享共同表达方式的群体或社区, 这些共同表达方式这些共同表达方式塑造了我们理解世界的方式。塑造了我们理解世界的方式。4. It was 10 years of hard work that _. 正正是是10年的努力工作使他在商业上取得了成功。年的努力工作使他在商业上取得了成功。 5. Our government is trying _. 我们的政府正试图采取措施我们的政府正试图采取措施, 防止和控制污染。防止和控制污染。refers to a groupled to/resulted in his success in businesst

43、o take measures to prevent and control pollutionIII.短语填空短语填空on behalf of; in search of; deal with; as well as;in response to 1. The law was passed_public pressure.2. We cannot expect her to do the housework_look after the children.3.How to _it if the situation happens to you or your girlfriend?4. Rescue workers are digging through the ruins _other victims. 5. He expressed deep gratitude again _the government.in response to as well asdeal within search ofon behalf of