Unit 3 Period 1 Reading and Thinkingppt课件（含音视频素材）-（2022新）人教版高中英语选择性必修第三册.rar

1、 Period 1 Reading and Thinking Unit 3 Environmental protectionLead inLook at the picture and read the quote.地球所提供的物质财富,足以满足每个人的需求，却不足以满足每个人的贪欲.Lead inWho is the man in the picture? He is commonly known as the “Father of the Nation in India, also being called Bapu”，meaning father. He is known for man

2、y other popular and inspiring sayings, such as:The future depends on what we do in the present.Be the change you want to see in the world.Mohandas K. Gandhi (1869-1948)Lead inLook at the picture and discuss some questionsHow do you understand the quote? The environment of the earth, i.e., nature, ha

3、s evolved to provide enough to satisfy the basic needs of all living things within it, including mankind.However, nature cannot provide enough to satisfy everyones greed, because greed is a desire that can never be satisfied.Lead inLook at the picture and discuss some questionsHow is it related to t

4、he theme of the unit?The quote is used here to suggest that consumption powered by greed is a prime cause of environmental degradation.Lead inLook at the picture and discuss some questionsWhat do you think this photo was taken?What does this photo make you think of?I think this photo was taken in ei

5、ther the Arctic or Antarctica, as those places have large ice sheets like this.The photo makes me think of the problem of global warming.1. What kind of reading passage is it? How do you know?Look at the title and pictures and discuss the questionsPre-readingIts an exposition.The authors sometimes u

6、se some graphs or diagrams in their essays in order to convince their readers. These graphs and diagrams often come from scientific research reports and other reliable resources.2.Who are the target readers?Researchers, climate experts or students.Look at the graph and answer the question.Pre-readin

7、g1.What is the graph about?What information can you get from?2.In which year did the temperature start to increase quickly? Why?3.What do you think may have caused the global temperature rise?Look at the graph and answer the questions.Pre-reading1.What is the graph about?2.What information can you g

8、et from?The graph shows the change in the Global Surface Temperature between 1920 and 2016. It shows the temperature anomaly, which shows how much the temperature has risen above what it would usually be at a base level. 3.In which year did the temperature start to increase quickly? Why?4.What do yo

9、u think may have caused the global temperature rise?Look at the graph and answer the questions.Pre-readingIn 1992. Since then, the modernization of industrial technology has accelerated, living standards have risen, and greenhouse gas emissions have increased. I think its caused by increased greenho

10、use gas emissions and air pollution. 1. Have you ever seen the photo before?Pre-readingI havent seen this photo, but I have seen photos like it.2.What might be the story behind it ?The story is that the polar bear starved to death because it could not find enough to eat.Look at the picture and answe

11、r the questions.BrainstormWhat other consequences may global warming bring about?animals dyinggobal warmingthe rise of the sea leveleconomic lossesunpredictable future of humanextreme weathernatural disasterscoastal cities submergedListne to the tape,divide the structure of the article and complete

12、the general idea of each part.Reading PartParagraphMain idea1 The _of dramatic climate change that had an impact on Earths ecology2The _ of the increase in the global average surface temperature 3The_ of the rise in temperature 4The _to reducing greenhouse gas emissions1-2evidence345causeconsequence

13、ssolutionsReadingReadingRead the first and second paragraphs and answer the questions.1.What happened to the polar bear in the photo?2.Why did the writer write about it?The polar bear in the photo died of starvation. The writer wrote about it because it showed one of the effects of rising temperatur

14、es due to climate change.ReadingReadingRead the first and second paragraphs and answer the questions.3.Can you use your words to describe how climate change have influenced the polar bears life?climate changelow sea-ice levels bears could not huntits dead body foundstarved to deathhad to travel grea

15、ter distances to find foodRead the third paragraph and analyse the structure of it.ReadingReadingGreenhouse effectnatural greenhouse effect man-made greenhouse effect keeping Earths climate warm and habitable causing Earths temperature to rise quickly if too much heat energy is trapped4.Why is the “

16、natural”greenhouse effect important and necessary?5.What are the consequences of high greenhouse gas emissions?Read the third paragraph and answer the questions.ReadingReadingThe natural greenhouse effect is important because it warms the Earth9s surface and keeps it habitable.High greenhouse gas em

17、issions lead to more heat energy being trapped in the atmosphere and rising temperatures.Learn the tips and answer the questions.ReadingReadingDraw a diagramDiagrams are very useful tools that can be used to brainstorm ideas,map out processes, show cause and effect relationships,explain a new idea o

18、r 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 visualise the problems more clearly but also can help demonstrate your creative thinking and problem-solving.6.What is a diagram? Have you ever seen any diagrams in you

19、r physics or geography coursebooks?Diagrams are used to brainstorm ideas,map out processes, show cause and effect relationships,explain a new idea or concept, and so on.Yes, I have.Learn the tips and answer the questions.ReadingReadingDraw a diagramDiagrams are very useful tools that can be used tc

20、brainstorm ideas,map out processes, show cause and effect relationships,explain a new idea or 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 visualise the problems more clearly but also can help demonstrate your creat

21、ive thinking and problem-solving. 7.When do authors use diagrams in their writing? Whats the benefit of using diagrams? When explaining about scientific issues, authors can try drawing a diagram. It will not only allow you to visualise the problems more clearly but also can help demonstrate your cre

22、ative thinking and problem-solving.Read the third paragraph and find out the information related to Activity 3.ReadingReading The naturalgreenhouse effect refers to the fact that heat from the sun enters the atmosphere and warms Earths surface as short-wave radiation.The heat is released back into s

23、pace at longer wave lengths. Greenhouse gases in the atmosphere, such as methane and carbon dioxide, trap some of the heat,keeping Earths climate warm and habitable. Read the third paragraph and create a diagram describing how the greenhouse effect works.ReadingReadingEarthSunlightReflected sunlight

24、Heat releasedback into spaceHeat reflectedback to Earths surfaceAtmosphereRead the fourth paragraph and analyse the structure of it.ReadingReadingThe rise in temperatureextreme weather/natural disastersextreme rainstorms,heat wavesserious damage,costing human lives,economic lossesled toexampleresult

25、sReadingReading8.Why did the author mention the climate scientistswarning?The author mentioned the climate scientists warning because it is essential that we take action and so it needs to be brought to everyones attention.Read the fourth paragraph and answer the questions.ReadingReading9.What examp

26、les of extreme weather and disasters do you know? Can you make a list?There are sadly many examples of extreme weather and disasters I know of, such as the extreme rainfall in France and the drought in East Africa in 2014. There were also heatwaves on nearly every continent due to climate change.Rea

27、d the fourth paragraph and answer the questions.Read the fifth paragraph and answer the question.ReadingReading10.What is the authors purpose of writing this text?11.How can individuals reduce carbon footprint”?By restricting the amount of carbon dioxide our lifestyles produce.The authors purpose is

28、 to inform the reader and inspire them to do whatever they can to deal with this problem. Read the fifth paragraph and answer the question.ReadingReading12.Do you think climate change is the result of human activity? Give your reasons .13.What writing techniques does the author use in order to achie

29、ve his/her purpose?I do think that climate change is the result of human activities because the majority of scientists also think so, and also because global temperatures have followed the rise in global emissions and population.Use charts, examples, explanations,questions, comparisons, and leave a

30、question at the end of your essay.Discuss the question in groups.Post-readingPost-reading1. Do you think climate change is the result of human activity? Give your reasons. 2. Who do you think should take responsibility for dealing with climate change? What can we do?Work in groups. Complete the task

31、s.Post-readingPost-reading1. Do you think climate change is the result of human actity? Give your reasons. I do think that climate change is the result of human activities because the majority of scientists also think so, and also because global temperatures have followed the rise in global emission

32、s and population.Work in groups. Complete the tasks.Post-readingPost-reading2. Who do you think should take responsibility for dealing with climate change? What can we do?I think we all need to take responsibility for dealing with it. Individuals can change their behaviour and try to reduce their ca

33、rbon footprint, while companies and governments can do the same on the larger scale.Here is a mind map about the measures to pay attention to it：Post-readingPost-readingComplete the mind map.switch off lights at homes and businesses for an hourrecycle bottles/paper/plastic bagsbuy the recycled produ

34、cts take public transportbuy things that are economic with energybe LOHAS (lifestyles of health and sustainability ) giving people a voice on the planets futuregive people a voice on the planets futureLanguage pointsImportant words1.starve 考查热度【热点品味】starve vi. &vt. (使)挨饿； 饿死；缺乏的【教材原句】An expert who h

35、as 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，从它尸体的位置看，这只熊似乎是挨饿而死的。【实例品读】Shes starving herself to try to lose weight.她正在用节食的方法减轻体重。These animals will starve to death if not given food soon.这些动物不赶快喂些食物就会饿死。

36、【热点归纳】starve to death 饿死starve for sth. 渴望获得某物；缺乏starve to do sth. 渴望做某事starvation n. 饿死Important wordsLanguage points【考点精练】单句语法填空Theyll either die from the cold or starve _ death.When will the dinner be ready? We _ (starve).He looks forward to the day when no one will die of _ (starve).are starving

37、to starvationLanguage pointsImportant words2.release 考查热度【热点品味】release vt. &n. 排放；释放；发布 【教材原句】 The heat is released back into space at longer wave lengths.热量以较长的波长释放回太空。【实例品读】The contraction of muscles uses energy and releases heat.肌肉的收缩消耗能量并且排放热量。When is the best moment to release the date of the e

38、lection to the newspapers?什么时候是向报界透露选举日期的最好时机？【热点归纳】release a book/ a new film 发行书/新影片release information 透露消息release from 从释放release of 解除，使放出release to 向发行Important wordsLanguage points【考点精练】单句语法填空The patient asked the doctor to give him something that would release him _ his pain.The prisoner has

39、 served his sentence and _ (release) tomorrow.On the peak, she burst into tears, _ (release) all her emotions.fromwill be releasedreleasingLanguage pointsImportant words3.sustain 考查热度【热点品味】sustain vt. 维持；遭受；承受住【教材原句】 Without this process, Earth could not sustain life. 没有这个过程，地球就无法维持生命。【实例品读】They had

40、 sufficient food to sustain life.他们有足够维持生命的食物。The company sustained losses of millions of dollars.公司遭受了数百万元的巨大损失。【热点归纳】sustain the injury 受到伤害sustain life 支撑生活sustain losses 蒙受损失sustainable adj. 可持续的；合理利用的Important wordsLanguage points【考点精练】完成句子The problem was how to get enough food _.问题在于如何找到足够的食物维

41、持生命。The branches could hardly _.树枝已很难支撑水果的重量。sustain the weight of fruitto sustain life Language pointsImportant words4. trend 考查热度【热点品味】trend n. 趋势；趋向；动向【教材原句】 Climate scientists have warned that if we do not take appropriate actions, this warming trend will probably continue and there wil be a hig

42、her 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，并将付出更高的代价。【实例品读】The underlying trend of inflation is still upwards.通货膨胀的潜在趋势仍然是上升的。The youth like to follow the latest trends in fashion.年轻人喜好追求最新的流行款式。【热点归纳】set a/the trend 开风气之先，带领新潮流follow the trend 赶时髦the trend in 的时尚the trend of 的形势the trend

43、 to 的倾向Important wordsLanguage points【考点精练】完成句子The event _ public opinion.这件事改变了舆论的趋向。There is _ earlier retirement.提早退休者有增加的趋势。changed the trend ofa growing trend toLanguage pointsImportant words5.restrict 考查热度【热点品味】restrict vt. 限制；限定；束缚【教材原句】We as individuals can also reduce ourcarbon footprint by

44、 restricting the amount of carbon dioxide our lifestyles produce.作为个人，我们也可以通过限制生活方式产生的二氧化碳量来减少我们的“碳足迹”。【实例品读】In a move to restrict imports, the government raised custom duties.政府在限制进口的措施中提高了关税。Recent laws have tended to restrict the freedom of the press.新法例有限制新闻自由的趋势。【热点归纳】restrict to 把限制控制，保持restri

45、cted adj. 有限的，受限制的restriction n. 限制规定；限制法规；约束Important wordsLanguage points【考点精练】单句语法填空Access to the club is restricted _ members only.I restrict myself to _ (smoke) two cigarettes a day.The government has agreed to lift _ (restrict) on press freedom.完成句子Their policy was to _.他们的政策是限制我们的发展。 The numb

46、er of students per class _ 40每个班的学生人数被限定为40人。restrictionstosmokingrestrict our growthis restricted toLanguage pointsImportant phrases1. refer to 考查热度【热点品味】提到，谈及，说起；查阅；有关，针对【教材原句】The naturalgreenhouse effect refers to the fact that heat from the sun enters the atmosphere and warms Earths surface as s

47、hort-wave radiation.“自然”温室效应是指太阳的热量以短波辐射的形式进入大气层，使地球表面变暖。【实例品读】She always referred to Ben as “that nice man”.她总是称本为“那个大好人”。“In fact，tradition also refers to the things that have been developing and that are still being created，”he said.他说，事实上，传统也指一直在发展的和仍正在被创造的东西。【热点归纳】(1)refer to as 把称作refer to 将送交

48、给(以求获得帮助等)(2) reference n. 言及；提及；参考；查阅(3)辨析：refer to/look up在表示“查阅”之意时，refer to后多接参考资料(字典，书籍等)；look up多接查询的内容。Important phrasesLanguage points【考点精练】单句语法填空While giving the English speech, one is not allowed to refer _ the notes.Youd better write down the phone number of that restaurant for further _

49、(refer).toreferenceLanguage pointsImportant phrases2.result in 考查热度【热点品味】 导致【教材原句】 Continued greenhouse gas emissions will result in further warming and long-lasting changes to the global climate. 持续的温室气体排放将导致进一步变暖和全球气候的长期变化。【实例品读】The talks resulted in reducing the number of missiles.谈判结果削减了导弹数量。The

50、 accident resulted in three people being killed.这一事故导致三人死亡。【热点归纳】result in“导致”与lead to“导致”同义，且in与to皆为介词，两短语可互换。result from 因而引起；因而导致as a result 结果；因此(作状语)as a/the result of 由于；因为without result 毫无结果Important phrasesLanguage points【考点精练】单句语法填空His laziness resulted in his failure；that is to say, his fa