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

1、X3 U3 Reading and ThinkingEnvironmental ProtectionLook and discuss1. Whats happening in the photo?2. Why did it happen? The ice is melting.Because of the green house effect.What other influences of the greenhosue effect?the rise of sea leveldyinganimalscoastal cities submergednatural disastersextrem

2、e weathereconomic lossesLook at the graph below. What is it about? What information can you get from it?The temperature of the global surface rose about 1.2 from 1920 to 2016. The earth is becoming warmer and warmer.PPT下载 http:/ Climate change requires the worlds attention. How ?Who ?Skim the passag

3、e and fill in the blanks.(1)The evidence of global climate change doesnt include _. A. warming ocean and atmosphere B. melting ice and rising sea levels C. more polar bears and seals D. extreme rainstorms and heatwaves(2)Why is the “natural” greenhouse effect important and necessary? A. Because it i

4、s short-wave radiation. B. Because it is long-wave radiation. C. Because it releases more heat. D. Because it helps Earth to sustain life. Task 2Multiple choices (3)Whats not the result of high man-made greenhouse gas emissions? A. A reduce in natural disasters. B. An increase in extreme weather. C.

5、 The extreme rainstorms. D. The cost of human lives. (4)What does the third 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 effect is important to us. (5)Whats

6、the authors purpose of writing this text? A. To call for people to donate money. B. To ask people not to kill polar bears. C. To appeal to people to care Earths ecology. D. To educate people about global warming. As we know, Earth is getting warmer and warmer, (1)_ results in melting ice and rising

7、sea levels. In 2013, a dead polar bear (2) _(find) on Norways Arctic island of Svalbard. Experts said that it was low sea-ice levels (3)_(cause) by climate change(4)_ killed the polar bear. Scientists often mention that the “man-made” greenhouse effect is a big problem. (5)_ rise in temperature has

8、led to an increase in extreme weather and natural disasters worldwide,(6)_(cause) serious damage and costing human lives. The further global warming resulted(7)_the continued greenhouse gas emissions(8)_(require) the attention of people all over the world. Governments need to make policies and take

9、measures (9) _(reduce) greenhouse gas emissions. As individuals, we should also reduce our “carbon footprint” by restricting the amount of carbon dioxide our (10)_(lifestyle) produce. whichwas foundcausedthatThecausingfromTask 3 Reread the passage and fill in the blanks. requiresto reducelifestylesT

10、he development of the passageproblemexamplereasonsinfluencessolutions1. What is the problem?2. What are the evidences of climate change？Para 1: ProblemPara 1: ProblemThe _ is getting warmer and warmer.Evidence 1: _Evidence 2: _Evidence 2: _Eartha warming ocean and atmospheremelting icerising sea lev

11、elsclimatechange1. When did it happen?2. Where did it happen？3. What did they find？4. Why did it happen?Para 2: An example of climate changePara 2: An example of climate changeTime Where What happenedWhy did it happen2013Norways Arctic Island of Svalbard.A polar bear died of starvation.The bear cann

12、ot hunt seals as before.1.What is the definition of natural greenhouse effect?2. What is the function of natural greenhouse effect?3. What is the problem of man-made greenhouse effect?Para 3: The reasonsPara 3:”natural”& “man-made”greenhouse effectDefinitionHeat from thesun enters the atmosphere and

13、 warm the Earths surface FunctionKeeping Earths warm and habitableDefinitionPeople produce huge amounts of extra greenhouse gases.A big problemC a u s i n g Earths surface temperature to rise quickly.Para 4: The influences of the rise in temperatureThe rise in temperature led toextreme weather/ natu

14、ral disasters exampleresultextreme rainstorms, heat wavesserious damage, costing human lives, economic lossesPara 5: The solutions to the environmental problems.0102The governments: make policies and take appropriate actions and measures.Individuals: reduce our carbon footprint”1.There is little dou

15、bt that .毫无疑问2.get warmer and warmer 变得越来越温暖3.along with 和.一起4.a dramatic change in. .的急剧变化5.be shocked by.对.感到震惊6.appear to do sth. 似乎.7.have an impact on 对.有影响8.greenhouse effect 温室效应9.refer to 指的是；涉及10. huge amounts of 大量的11. be trapped in 被困在.12. cause sb. to do sth. 使某人做某事13. take a appropriate actions 采取适当的行动14. result in 导致15. consider doing sth. 考虑做某事16. make policies 制定政策17. take measures to do sth. 采取措施做某事18. seize every opportunity抓住每一个机会