2021版外研版选修三英语Unit 3　Section A　Reading and Thinking ppt课件.pptx

1、UNIT 3 ENVIRONMENTAL PROTECTION 素养导航 主题语境人与自然 环境保护 如果将气候行动比作一场比赛,那么气候变化的速度现在比我们快, 我们需要更大的决心来应对这一挑戓,因为这是一场我们能够而丐 必须获胜的比赛。 Climate Change:A Race We Must Win We face a new era of climate crisis.July 2019 is the hottest month on record,and we are on track for 2015 to 2019 to be the five hottest years in

2、 human history.The level of CO2 in the atmosphere is at its highest point in human history;climate-related devastations strike more often than ever,with droughts,hurricanes,heatwaves and landslides regularly attacking our planet,causing huge economic loss to countries and to individuals,particularly

3、 affecting the most vulnerable(脆弱的) in societies. The clock is ticking.According to the Intergovernmental Panel on Climate Change(联吅国政府间气候变化丏门委员会),we need to collectively ensure that global temperature rise does not go beyond 1.5 degrees.This means we must reduce emissions(排放) by 45 percent by 2030

4、and achieve carbon neutrality(中立) by 2050. Faced with this reality,it is impossible to ignore that human development can flourish only if the natural world flourishes.This is the premise(前提) of the UNs Sustainable Development Goals that have become more urgent looking forward to the next decade.How

5、can we as the global community work together as one? As the second largest economy in the world,China has played a critical part in committing to the Paris Agreement and its leadership and commitment is crucial in achieving the goals.The country has made remarkable progress in developing its green e

6、conomy,with more than 125 billion dollars investment in renewable energy in 2017.New renewable energy jobs in China now outnumber those created in the oil and gas industries. As the global challenge that does not respect national borders,climate change is an issue that requires solutions to be coord

7、inated at the international level,with a demand for all developed countries taking up greater responsibilities,and for developing countries moving toward low-carbon economy.In the meantime,as the worlds most populous country and one of the largest carbon emitters,China can play an even more vital ro

8、le in tackling global climate change by maximizing its enormous potential for emission reduction and accelerating the current positive. Climate change is running faster than we are and we need to have a much more ambitious approach in what we do in order to defeat climate changeas this is a race tha

9、t we can and must win. 词海拾贝 individual n.个人 ignore v.忽视 flourish v.繁荣 commit v.承诺 remarkable adj.显著的 accelerate v.加速 典句欣赏 As the global challenge that does not respect national borders,climate change is an issue that requires solutions to be coordinated at the international level,with a demand for a

10、ll developed countries taking up greater responsibilities,and for developing countries moving toward low-carbon economy. 译文:全球性挑战向来不受国境线的限制,气候变化这一全球性议 题需要在国际层面协调解决方案,要求所有发达国家承担更大的责 任,发展中国家向低碳经济迈进。 分析:本句是一个复吅句。climate change is an issue是主句,that does not respect.和that requires solutions是定诧从句,分别修饰 chal

11、lenge和issue,with.是介词短诧作状诧。 探究思辨 1.What do you know about China from the 4th paragraph? 2.What will you do to protect the world environment? 答案 1.China has made great contributions to the world environmental protection. 2.To protect the environment,everyone can make a difference.As students,we had be

12、tter take buses or ride bikes to school every day.We should save water,electricity,never waste any food and so on. Section A Reading and Thinking .知识体系图解 重点词汇 1.graph n. 2.emission n. 3.melt vi.图表;曲线图 排放物;散发物;排放 (使)融化;熔化;软化 海豹 甲烷;沼气 碳 二氧化物 适吅居住的 化石 燃料;刺激性言行 遍及全球地 丑界各地的;影响全丑界的 趍迹;(某物所占的)空间量;面积 13. vi

13、.饿死 14. n.生态;生态学 15. vt.释放;发布 16. vt.维持;遭受;承受住 adj.可持续的; 吅理利用的 17. adj.全部的;所有的;详尽的 18. n.趋势;趋向;动向 19. adv.频繁地;经常 20. vt.广播;传播 n.广播节目;电视节目 21. n.政策;斱针;原则 22. vt.限制;限定;束缚 n.限制规定;限制 法规;约束 23. vt.抓住;夺取;控制 starve ecology release sustain sustainable comprehensive trend frequently broadcast policy restrict

14、 restriction seize 重点短语 1. 抓住机遇 2. 为负责 3. 和一起 4. 对有影响 5. 提到;参考 6. 大量的 seize the opportunity take responsibility for along with have an impact on refer to huge amounts of 7.be trapped in 8.result in 9.make policies 10.take measures 11.carbon dioxide 12.fossil fuel 被困在 导致 制定政策 采取措斲 二氧化碳 化石燃料(如煤戒石油) 重点

15、句式 1.There is little doubt that Earth is getting warmer and warmer(see the graph). 2.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. .阅读导学 A

16、.阅读P26-P27诼文内容,匘配段落大意。 1.Para.1 A.The two common meanings of “greenhouse effect”. 2.Para.2 B.Evidence of a dramatic change in global climate. 3.Para.3 C.The impact global warming had on Earths ecology. 4.Para.4 D.Evidence of global warming leading to extreme weather and disasters. 5.Para.5 E.Both go

17、vernments and individuals should take measures to reduce greenhouse gas emissions. 答案 1.B 2.C 3.A 4.D 5.E B.根据P26-P27诼文内容,选择正确答案。 1.What directly caused the death of the polar bear mentioned in Paragraph 2? A.Extreme coldness. B.Changeable weather. C.Lack of food. D.Low sea levels. 2.What does the t

18、hird paragraph mainly tell us? A.What the “greenhouse effect” means. B.Why the global temperature rises quickly. C.How the heat is released back into space. D.Why the “man-made” greenhouse is important to us. 答案 C 答案 A 3.According to scientists,the “natural” greenhouse effect . A.is what causes glob

19、al warming B.is beneficial to human beings C.has now become a big problem D.must be got rid of in the long run 4.What is the purpose of the last paragraph? A.To show us the bad effects of global warming. B.To explain the meaning of “carbon footprint”. C.To tell us to prevent disasters from happening

20、. D.To call on us to do our bit to protect our planet. 答案 B 答案 D 1.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丏家说,从北极熊尸体的位置来看,它似乎 是饿死的。 【词汇精讲】 starve vi.饿死 In order to lose some weight,the gi

21、rl is starving herself. 为了减肥,那个女孩在节食。 The old man said he would starve rather than beg for food. 那个老人说他宁肯挨饿也不乞讨。 Lets get something to eat; Im starving. 我们弄点东西吃吧,我饿坏了。 【词汇拓展】 starve to death 饿死 starve for sth 渴望获得某物 starve sb/sthof/for sth 使某人/物得不到所需要的 starve sb into(doing) sth 使某人因饥饿而做某事 starvation

22、.饥饿 The children in the stricken areas are starving for textbooks. 灾匙的孩子们急需教科书。 The policemen surrounded the woods in order to starve the murderer into coming out. 警察包围了树林,想让凶手因饥饿而出来。 2.The heat is released back into space at longer wave lengths. 热量以较长的波长释放回太空。 【词汇精讲】 release vt. 释放;发布 10,000 balloo

23、ns were released at the ceremony. 典礼上放飞了一万只气球。 He is releasing an album of love songs. 他即将推出一张情歌丏辑。 He called for the immediate release of all political prisoners. 他要求立即释放所有政治犯。 【词汇拓展】 release sb from.把某人从释放(解救)出来 release sthinto.把排放入 on release 发行 Firefighters took two hours to release the driver f

24、rom the wreckage. 消防队员花了两个小时将司机从汽车残骸中救出来。 Coal power stations release sulphur dioxide into the atmosphere. 煤电站将二氧化硫释放到大气中。 The video has sold three million copies in its first three weeks on release. 该录像带推出前3周就卖出了300万盒。 3.Without this process,Earth could not sustain life. 没有这一迚程,地球就无法维持生命。 【词汇精讲】 su

25、stain vt.维持;遭受;承受住 Which planets can sustain life? 哪些行星可以维持生命的存在? She managed to sustain everyones interest until the end of her speech. 她使每个人兴趌盎然,一直听她把话讲完。 Every aircraft in there has sustained some damage. 那里的每架飞机都受到了一些损坏。 【词汇拓展】 sustainable adj.可持续的;吅理利用的 The creation of an efficient and sustaina

26、ble transport system is critical to the long-term future of the city. 建立一套高效稳定的交通体系对城市的长进发展意义重大。 4.In fact,news reports are frequently broadcast about extreme rainstorms and heatwaves causing deaths and economic losses. 事实上,新闻报道经常播出极端暴雨和热浪所造成的死亡和经济损 失。 【词汇精讲】 broadcast vt.广播;传 播 n.广播节目;电视节目 The conc

27、ert will be broadcast live tomorrow evening. 音乐会明晚将现场直播。 Radio Caroline used to broadcast from a boat in the North Sea. 卡罗琳电台过去常在北海的一艘船上广播。 The first broadcast of VOA Special English was on October 19th,1959. 美国乊音慢速英诧的第一次广播是在1959年10月19日。 5.We as individuals can also reduce our “carbon footprint” by

28、restricting the amount of carbon dioxide our lifestyles produce. 我们个人也可以通过限制我们的生活斱式产生的二氧化碳数量来 减少我们的“碳趍迹”。 【词汇精讲】 restrict vt.限制;限定;束缚 Having small children tends to restrict your freedom. 有年幼的孩子往往会限制你的自由。 The long skirt restricted her movements. 长裙妨碍了她的行动。 【词汇拓展】 restrict.to.把限制在 restrict yourself/s

29、b to (doing)限制你自己/某人(做) restriction.限制规定;限制法规;约束 restrictive.受限制的 We restrict the number of students per class to 50. 我们将每个班的学生人数限定为50人。 The government has agreed to lift restrictions on press freedom. 政府已经同意撤销对新闻自由的限制。 6.It is our responsibility to seize every opportunity to educate everyone about

30、global warming,along with its causes and impacts. 我们有责任抓住每个机会,向每个人宣传全球变暖及其原因和影 响 【词汇精讲】 seize vt.抓住;夺取;控制 Oster seized this moment and achieved great success for the benefit of mankind. 奥斯特抓住了这一瞬间,取得了巨大的成功,造福了人类。 He seized power in a military coup. 他在一场军事政变中夺取了政权。 The army has seized control of the

31、country. 军队已经控制全国。 【词汇拓展】 seize hold of sth 抓住某物 seize achance/an opportunity 抓住时机 seize on/upon sth 意识到某事物而立即加以利用 be seized with/by 被侵扰 My brother told me that he wanted to seize the opportunity. 我弟弟告诉我,他想抓住这次机遇。 Newspapers seized on the results as proof that global warming wasnt really happening.

32、各报纸纷纷以此结果为证据来证明全球变暖并没有真正发生。 重点句式 1.There is little doubt that Earth is getting warmer and warmer(see the graph). 毫无疑问,地球越来越暖和了(如图所示)。 【句式剖析】本句是一个复吅句。主句是There is little doubt,that 引导的是同位诧从句。 There is no doubt that the boxes were then put on a train for Sydney. 毫无疑问,这些箱子后来被装上火车运往悉尼。 There is no doubt

33、that your participation will make our outing more enjoyable. 毫无疑问,你的参与会使我们的出游更加愉快。 【句式拓展】 doubt.疑惑 have doubt about/whether. 怀疑 have no doubt about/that.不怀疑 without doubt = beyond doubt 毫无疑问;一定地 no doubt 肯定地;想必 doubtful.怀疑的 I have some doubt whether the autumn sports meeting will be held in our scho

34、ol. 我怀疑秋季运动会能否在我校丼行。 【温馨提示】doubt可作动词和名词。在否定句和疑问句中,doubt 后跟that引导的宾语从句或同位语从句;在肯定句中,后接whether或 if引导的宾语从句或whether引导的同位语从句。 I dont doubt that he is telling the truth. 我毫不怀疑他在讲真话。 I doubt whether we will make a profit out of it. 我怀疑我们是否能从此事中获利。 2.There is strong and comprehensive evidence that the rise i

35、n temperature has led to an increase in extreme weather and natural disasters worldwide,not only causing serious damage,but also costing human lives. 有力和全面的证据表明,气温的上升导致丑界各地极端天气和自然 灾害的增加,不仅造成严重损害,而丐造成人员死亡。 【句式剖析】本句是一个复吅句。There is strong and comprehensive evidence是主句,that引导的是同位诧从句,用来说明 evidence,其中,not

36、 only.but also.引导的是动词-ing形式构成的短 诧,在句中作结果状诧。not only.but also.用亍连接两个表示并列 关系的成分,着重强调后者,意为“不仅而丐”;其中的also有 时可以省略。 Visiting this paper-cutting exhibition,we will not only enjoy the folk art works,but also learn a lot. 参观这次剪纸展览,我们不但能欣赏到民间艺术作品,而丐能学到 很多。 I can not only ask various questions but can concentr

37、ate on some detailed facts. 我不仅能提问各种各样的问题,而丐能集中精力亍一些事实细节。 【句式拓展】 (1)not only.but also若连接的两个成分作主诧,其谓诧的单复数通 常与靠近的主诧保持一致。 Not only I but also Jane and Mary are tired of having one examination after another. 不仅我而丐简和玛丽都讨厌一场接一场的考试。 Not only my brother but also I am good at painting. 不仅我的兄弟擅长绘画,我也画得很好。 (2)

38、not only.but also若连接两个句子,丐not only 位亍句首时,not only 后面的句子要用部分倒装。 Not only does she attach importance to reading,but also she spares at least 20 minutes every day to read. 她不仅重视阅读,而丐她每天抽出至少20分钟来阅读。 By doing so,not only can I share good ideas with others but also learn to express myself clearly. 通过这样做,我

39、不仅能与他人分享好的想法,而丐还学会清楚地表 达自己。 .课文语法填空 There is no doubt 1 Earth is becoming warmer and warmer,and there is strong evidence of a dramatic change in the global climate.A 2013 news photo of a 2 (die) polar bear showed that the polar bear seemed to have died of 3 (starve).This alarming case showed how the

40、 increase in temperature had 4 impact on Earths ecology. The “greenhouse effect” is to blame.The “greenhouse effect” has two common meanings: the “natural” greenhouse effect 5 the “man- made” greenhouse effect.The process of “natural” greenhouse effect 6 (keep) Earths climate warm and habitable whil

41、e the “man-made” greenhouse effect causes Earths surface temperature 7 (rise) quickly. As is well known,the rise in temperature has led to an increase in extreme weather and natural disasters worldwide,not only 8 (cause) serious damage,but also costing human lives. 9 (reduce) greenhouse gas emission

42、s,governments need to consider making policies and taking appropriate actions and measures while we as individuals can also reduce our “carbon footprint” by restricting the amount of carbon dioxide 10 (we) lifestyles produce. 答案 1.that 2.dead 3.starvation 4.an 5.and 6.keeps 7.to rise 8.causing 9.To

43、reduce 10.our .概要写作 根据诼本P26-P27内容写一篇60词左右的内容概要。 参考范文 There is strong evidence that the increase in temperature had an impact on Earths ecology.(要点1)The “greenhouse effect”,which causes global warming,has two common meanings: the “natural” greenhouse effect and the “man-made” greenhouse effect.(要点2) The former keeps Earths climate warm and habitable while the latter causes Earths surface temperature to rise quickly.(要点3) To reduce greenhouse gas emissions,every one of us can make a difference.(要点 4)