课件Unit 3 Environmental Protection Reading and Thinking 课件人教版（2019）选择性必修第三册

1、Part 1 : Reading and ThinkingDiscuss Climate changeUnit 3 ENVIRONMENTAL PROTECTION010203By 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 effecti

2、ve action to do it. By the end of the class, you will be able toLearning AimsWhat do you know about global warming?The effects are destructive as follows:The sea level to rise. Severe storms, droughts, famines, the spread of diseases, and destruction of species.Wide animals died because of starvatio

3、n.Forest fire occurs frequently because of the extreme hot weather.Lead inWhat 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 pictu

4、re? Do you know what caused it?A polar bear was 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 02030405Global climate is cha

5、nging dramatically. An alarming case 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.Fast-reading.Read the text and answer the

6、questions:1.What is the evidence of global warming?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

7、 and answer the questions:What is the evidence of 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 ke

8、eps the earth warm and habitable.3.What are the 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 t

9、o warn us of the urgency of taking appropriate actions 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

10、how the greenhouse effect works. Diagrams are very 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 al

11、low you to visualize the problems more clearly but also can help demonstrate your creative thinking and problem-solving.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 s

12、hould take responsibility to address this climate change? What should you do to do to tackle it?Group discussion1.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

13、, tornados, hail.2.Do you think it is human activity that caused 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 st

14、eadily .It is everyones duty to take care of the earth and do our part to tackle global warming.Take the stairs instead of elevatorWhat you should do to do to tackle it?Dont litterWhat you should do to do to tackle it?Go to school by bike instead of by car/busWhat you should do to do to tackle it?Tu

15、rn off the lights when leaving.Cover the pot while cookingWhat you should do to do to tackle it?Use handkerchief instead of facial tissueWhat you should do to do to tackle it?Use basket or environmental basket bag instead of plastic bag;buy things economic with energy; use recycle goods or items.Wha

16、t you should do to do to tackle it?Climate is rising.EvidencedamagesPotential further changescauseswarningactions to tackle the issue Words and Expressions1.graph 图表/曲线图 diagram 几何图解/示意图 table 列表/一览表2. emission n. 排放物; 散发物; 排放 pl：emissions emit v. 发出; 射出; 散发 同义短语：give off/out 发出(光,热,气体）3.melt (melte

17、d) 融化,软化 a melting pot of different nationalities:多民族的大熔炉4. starve vi. & vt. (使)挨饿; 饿死 n.starvation (be)starve(d) to death：饿死 eg: A number of children in Africa _(starve) to death over the past few yearshave(been) starved seal5. seal n. 海豹/印章 v.密封 eg：He broke the wax seal and unrolled the paper.6.ec

18、ology n. 生态; 生态学 ecologist 生态学家 biology n. 生物学; 生态学 biologist 生物学家 psychology n.心理学 psychologist n7.release vt. & n. 排放; 释放; 发布 set.free 释放 issue u v.宣布/公布 n. ; 争论的问题; 热点 release harmful gases release a prisoner/release information 1.On the peak, she burst into tears, _(release) all her emotions. 2.

19、When fuel is burning, it _a lot of heat. 3.Once_(release) ,the new edition of the dictionary will be popular. releasingwill releasereleased8. habitable adj. 适合居住的habitat n.(动植物的)栖息地 habit n. 习惯; 癖好Eg: 1.Some areas of the country are too cold to be habitable. 2.I dont think that the earth is the only

20、 habitable planet.sustain vt. 维持;支撑; 遭受; 承受住 ,证实， adj.sustainable 可持续的写出下列句子中划线单词的汉语译意:1.They found it difficult to sustain the weight of fruit.2.These facts sustain the theory.3.The company sustained losses of millions of dollars.4.Mary consider it challenging to sustain an interest in their talk.支

21、撑证实遭受保持 fossil16.fuel n.燃料；刺激性言行 add fuel to the fire/flames:火上浇油 eg:Research suggests warm colours fuel our prehensive adj.全部的;所有的； comprehension n.理解力18.restrict v.限制 restricted adj 受限的 restriction n.限制(法规,约束) restrict.to. 把.限制在. restrict oneself to. 限制自己在. import/export/speed/travel restrictions

22、翻译下列句子：1.长裙限制了她的活动。 Long dress restricted her movements.2.我爸爸控制自己每天吸10根烟。My father restricted himself to 10 cigarettes a day.3.镇里限速30km/h.The speed is restricted to 30 mph in towns.19.seize v.抓住;夺取;控制catch/get/grab/take/seize hold of.: 抓住seize/catch/hold sb + by the leg (hand, arm): 抓住某人的腿/手/胳膊20.re

23、form vt 改革；(使)改正；改造 Our company_ (reform) its promoting system by the end of last year.had reformed写出句子中划线单词的含义.1.The teacher thought she could reform the boy.2.We should try to reform prisoners through labour rather than punish them.3.The reforms should give a better chance to the students in the c

24、ountryside.4.Great changes have taken place in China since it began the reform and opening-up policy.改变改造改革(制度/政策)改革开放政策21.undergo nd: underwent - undergone vt. 经历; 经受(变化/不快等) 尤指经历坎坷,变化或不愉快的事情,也可指接受测试、培训等experience: v. 经历; 感受 (强调亲身经历或体验某事物)go through.: 经历; 遭受suffer from.: 受害于.; 患(病)1.The boss think

25、it important for employees _ (undergo) some career trainingto undergo22.implement vt.实施 n.工具 carry out 实施 writing/cleaning implements implement changes/reforms/policies/decisions实行变革/实施改革/执行政策/执行决议23.harmonious adj.和谐的 adv.harmoniously n.harmony 和谐,融洽 be in harmony with.: 与和谐/协调/融洽/和睦 翻译：我妈妈要求我要和室友和

26、谐相处 My mother demanded that I(should) be in harmony with my roommates.24.moderate adj.适度的,中等的,温和的/v. 理解下列划线单词的中文含义1.Contrary to popular belief,moderate exercise decreases your appetite. 2.The boy is a student of only moderate ability. 3.By evening, the wind had moderated slightly. 4.We hope that the

27、y will take a moderate position on most of the key issues.适度的中等的温和的中立的25.submit v.递交,呈递,屈服 submitted/submitted submit an application/a claim/complaint submit sth to sb 把某物交给某人 submit to doing/sth/sb 屈从/屈服于某事/物/人 1. In the end,the man_(submit) to the enemy. 2. He gave up struggling for freedom, _ (su

28、bmit) to the reality. submittedsubmitting tropical forest in chaos26.chaos kes: n. 混乱; 杂乱; 紊乱economic/political chaos: 经济/政治的混乱in chaos: 混乱; 一片混乱; 乱七八糟27.on behalf of 代表 represent /stand for 代表,象征 翻译：我将代表公司签署这份文件I will sign the document on behalf of my company.28.sensitive adj.敏感的,善解人意的 be sensitive

29、 to 对.敏感/体贴 be sensitive about 对.介意My teeth is very sensitive_cold foodThe young girl is rather sensitive_the appearance of her further husband.toabout29.originate 起源 origin n.起源/起点 original adj 原来的,最初的,原创的/n.原稿,原创 originally adv.起初/原来.30.enterprise 公司/企业/进取心 翻译:他是一个积极进取的人 He is a man of great enter

30、prise.31.restore v 恢复/复原 写出划线单词的中文含义1.Such kindness restore your faith in huaman nature.2.Urgent measures should be taken to restore the rivers original beauty.3.He is now fully restored to health.4.The army has recently been brought in to restore order at the capital.恢复(感受)使复原(情况)重新采用(或实施)康复32.cons

31、ervation 对(环境,文物)保护;保持 conserve v.保护,节约 conserved adj.保守的33.disposal n.除掉 dispose v.清理,去除 at ones disposal 任某人处理34.inspection n.检查/查看 inspect v 检查,查看 inspector n.视察员 waterway35.tolerate tolerate(ones/sb)doing sth tolerant adj.容忍的 tolerance n be tolerant of 容忍某人/物 翻译：新的环境让我无法忍受 1.New surroundings wer

32、e difficult to tolerant 2. I cant be tolerant of the new surroundings.1. starve vi.&vt. (使)挨饿; 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，从北极熊尸体的 位置来看，北极熊似乎是饿死的。 Language points【知识拓展】(1

33、)starve for渴望, 极想得到starve to death饿死(2) starvationn. 挨饿(3)starvingadj. 极想的, 渴望的be starving for渴望得到某物【巧学助记】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 UN has taken a lot of measures to protect them from b

34、eing 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。幸运的是, 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】语法填空。(1)The lonely student is _(starve) for friendship. (2)We shall wait the enemy out, and watch them starve to _(die). (3)Since the famine broke out, the number of people dying of _(starve) has been increasing

35、. starvingdeathstarvation2. sustain vt. 维持； 遭受；承受住Without this process,Earth could not sustain. 没有这个过程，地球也无法维持下去。【知识拓展】sustain an interest保持兴趣sustain losses遭受损失sustain ones weight承受某人的体重sustainable development可持续发展【即学即练】(1)They had sufficient food to _. 他们有足够的食物来维持生命。(2) _is a brand new idea of soci

36、ety development. 可持续发展是一种全新的社会发展观。sustain lifeSustainable development3. fuel n. 燃料；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

37、热能被困在大气中，导致地球表面温度迅速上升。【知识拓展】fossil fuel化石燃料add fuel to the fire火上浇油fuel ones interest in激起某人对的兴趣 【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。(2)同义替换。His experience aroused (=_) his interest in becoming a chef. a cleaner fuelfueled【熟词生义】How China has fueled the fashionable imaginatio

38、n for centuries? 几个世纪以来，中国是如何激发时尚想象力的?v. 启迪, 刺激, 煽动4. trend n. 趋势； 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，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】the latest trend in

39、的最新潮流fashion trends时尚潮流tend to do sth. 倾向于做某事【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。(2)网上购物在印度成为一种新趋势。译: _. tends to go fromOnline shopping is a new trend in India5. broadcast vt.&vi. 播送； 广播； 传播 n. 广播节目, 电视节目 In fact, news reports are frequently broadcast about extreme rain

40、storms and heatwaves causing deaths and economic losses. 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。【知识拓展】radio broadcast无线电广播the live broadcast of直播be broadcast live进行直播【即学即练】(1)Regular _began in 1920. 常规的无线电广播始于1920年。(2)In addition, I hope the program _on Saturday evenings. 此外, 我希望这个节目能在星期六晚上播出。radio broadca

41、stswill be broadcast6. restrict vt. 限制； 限定； 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生的二氧化碳的数量来减少我们的“碳足迹”。 【知识拓展】restrict the number of限制的数量restrict oneself to限制自己(to是介词)without restriction没有限制【

42、即学即练】语法填空。(1)Her diet restricts her _ 1, 500 calories a day. (2) Jan 23: Wuhan declared temporary outbound (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, 这就限制了他能买的各种商品的数量。torestrictionswhich restricts the number of7. seize vt. 抓住； 夺取； 控制It is our

43、 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因和影响，因为这是影响我们地球上所有人的最严重问题。【知识拓展】seize the opportunity/chance抓住机遇/机会seize the pow

44、er夺取政权【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，但还是没有理解大意。( )vt. 理解, 领会【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

45、该抓住这次出国学习的机会, 否则你会后悔的。seizedseize the opportunity to study abroad8. There is little doubt that Earth is getting warmer and warmer. 毫无疑问, 地球正变得越来越暖和。【句式解构】there is little/no doubt that. . . 毫无疑问, that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 person

46、alities. 毫无疑问，要实现一个目标，不仅需要知识，还需要良好的性格。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。【名师点津】“there is no/little+抽象名词+that. . . ”是存在句, 其中there不能换成it。【即学即练 】语法填空。(1)At present, there is little doubt _ the short message plays an increasingly impor

47、tant role in our lives. (2)毫无疑问, 看电视会影响人们的行为举止。译: _thatThere is no doubt that watching television can influence the way that peoplebehave. SummaryYou can click here to add what you want to addt. It is easy to change.You can click here to add what you want to add. It is easy to change.认知词汇:basin,refo

48、rm,undergo,penguin,moderate,imple-ment,annual,chaos,tropical,jungle拓展词汇：1.sunmitsubmission2.starvestarvationstarving3.sustainsustainable4.harmoniousharmony5.restrictrestriction6.sensitivesensesensible应用词汇：1.starve:starve for,starve to death,starvation,be starving for2.sustain :sustain an interest,su

49、stain losses,sustain ones weight,sustainable development3. fuel:fossil fuel,add fuel to the fire,fuel ones interest 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,wi

50、thout restriction词 汇 清 单 核心短语重点句式There is little doubt that Earth is getting warmer and warmer. 毫无疑问, 地球正变得越来越暖和。【句式解构】there is little/no doubt that. . . 毫无疑问, that引导的是同位语从句。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1. He started to study _ (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). 3. During th