Unit 3 Environmental Protection Reading and thinking （ppt课件） (2)-2023新人教版（2019）《高中英语》选择性必修第三册.pptx

1、UNIT 3 Environmental Protection点击添加内容1.What can you see in the picture?2.What will happen if glaciers are melting faster than before?A large piece of ice breaking off a large glacier or ice sheet.Rising sea levels.A dramatic change in the global climate.Have an impact on Earths ecology.natural disas

2、terseconomic lossescoastal cities submergedextreme weatherunpredictable future of humananimals dyingWhat consequences may climate change bring about?climatechangesEarth provides enough to satisfy every mans needs,but not every mans greed.Mohandas K.GandhiWhat is the difference between“needs”and“gree

3、d”?How do you understand the quote?How is it related to the theme of the unit?What is the graph about?What information can you get from it?Whats the authors purpose of using the graph and the photo?Pre-readingLook at the graph.What is it about?What information can you get from it?What can you see in

4、 the photo?What might be the story behind it?The temperature of the global surface rose about 1.2 from 1920 to 2016.The earth is becoming warmer and warmer.What effects may be caused by the global warming?skin and bones瘦得皮包骨The polar bear(北极熊)may died for lacking food.1.Whats the type of this text?A

5、.Essay 论文 B.Biography 传记C.Exposition.说明文 D.Argumentation.议论文2.Whats its purpose?A.To inform readers to deal with climate change B.To persuade readers to focus on limited resources3.In which part of a newspaper or magazine may we find this passage?A.Entertainment B.Economy C.Education D.EnvironmentSk

6、immingPara1.The influences of the rise in temperature.Para2.The solutions to reducing greenhouse gas emissions.Para3.An exact example of climate change.Para4.A problem of climate change.Para5.The causes of the increase in the global temperature.Reading for main idea.problemexamplecausesinfluencessol

7、utionsRead the text and find out the development of the passage.problemexamplecausesinfluencessolutionsReading for the details.Reading for the details (Para1):A problemWhat?a warming ocean&atmospheremelting icerising sea levelClimates is getting warmer and warmerClimate changelow sea-ice levelsbears

8、 could not hunthad to travel greater distances to find foodstarved to deathits dead body founduA polar bears dead body was founduStarved to deathuLow sea-ice levelsuClimate changeuThe bear could not hunt sealsuHad to travel greater distance to find foodPara2.Put the following sentences into the righ

9、t order.What is causing the increase in the global average surface temperature?(Para3):The causesGreenhouse effectkeeping Earths climate warm and habitablecausing Earths surface temperature to rise quickly Diagrams are very useful tools that can be used to brainstorm idea,map out processes,show caus

10、e 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 but also can help demonstrate your creative thinking and problem-solving.What are the b

11、enefits of using diagrams?A diagram describing how the greenhouse effect works(para4):The influences结结果果Whataretheconsequencesofglobaltemperaturerise?Finishthemindmapbelow.The rise in temperature led to example resultsserious damage,costing human lives,economic lossesextreme weather/natural disaster

12、sextreme rainstorms,heat wavesGovernmentsIndividuals1.make policies 2.take appropriate actions and measures to reduce greenhouse gas emissions restrict the amount of carbon dioxide our lifestyles produce to reduce our“carbon footprint”(Para5):The solutions点击添加内容1.What examples of extreme weather and

13、 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?Discussion点击添加内容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?Gi

14、ve your reasons?Yes.Human beings burn too much fossil fuels and produce large quantities of carbon dioxide,causing the temperature to go up steadily.Tsunami(海啸）,floods（洪水）,landslides（滑坡）,sandstorms（沙尘暴）,thunderstorms（雷雨）,earthquakes,hail（冰雹）,heatwaves（热浪）,cold waves（寒潮）,typhoons（台风）,tornados(龙卷风).Di

15、scussionWhat will you do to help?1.graph 图表图表/曲线图曲线图 diagram 几何图解几何图解/示意图示意图 table 列表列表/一览表一览表2.emission n.排放物排放物;散发物散发物;排放排放 pl：emissions emit v.发出发出;射出射出;散发散发同义短语：同义短语：give off/out 发出发出(光光,热热,气体）气体）3.melt (melted)融化融化,软化软化 a melting pot of different nationalities:多民族的大熔炉4.starve vi.&vt.(使使)挨饿挨饿;饿死

16、饿死 starvation n.(be)starve(d)to death 饿死饿死5.seal n.海豹海豹/印章印章 v.密封密封 eg：He broke the wax seal and unrolled the paper.6.ecology n.生态生态;生态学生态学 ecologist 生态学家生态学家 biology n.生物学生物学;生态学生态学 biologist 生物学家生物学家 psychology n.心理学 7.release vt.&n.排放排放;释放释放;发布发布 set.free 释放释放8.habitable adj.适合居住的适合居住的habitat n.(动植物的动植物的)栖息地栖息地 habit n.习惯习惯;癖好癖好9.fuel n.燃料；刺激性言行 add fuel to the fire/flames:火上浇油prehensive adj.全部的;所有的；comprehension n.理解力11.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.HomeworkTomakeaposteraboutenvironmentprotection