Unit 3 Environmental Protection Reading and Thinking 课件-2024-2025学年高中英语人教版选择性必修第三册

Reading and Thinking Discuss climate change UNIT 3 ENVIRONMENTAL PROTECTION To discuss climate change To learn to identify the style of this text and infer the writer’s purpose To learn to draw a diagram To think about how we can do to deal with climate change Lead-in Watch a video and answer the questions: What’s happening in the video? Where is it? Lead-in Watch a video and answer the questions: What’s happening in the video? Where is it? The video showed us Glacier melting, we can see a large piece of ice breaking off a large glacier. It is likely to be in the Arctic or Antarctica or somewhere nearby. Lead-in Further thinking: What causes this phenomenon? Global warming causes it. The rising temperature of the Earth is the primary reason glaciers have started to melt more, and this climate change can be directly tied back to human activity. Lead-in Watch a video about the global warming Lead-in What other consequences may global warming bring about? Global warming extreme weather natural disasters economic losses coastal cities submerged the rise of sea level animals dying unpredictable future of human Pre-reading Look at the title and graph of the passage, What kind of reading passage is it? How do you know? (P26-27) Expository text (说明文) Because in the expository text, the authors use 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. Pre-reading What is the graph about? What information can you get from it? The graph shows the change in the GSF(Global Surface Temperature) between 1920 and 2016. It shows the abnormal temperature, which shows how much the tem-perature has risen above what it would usually be at a base level. Global warming 平均气温距平值 年份 Pre-reading Have you ever seen the photo before? What might be the story behind it? I haven’t seen this photo, but I have seen photos like it. The story is that the polar bear starved to death because it could not find enough to eat. While-reading Find the key sentence of each paragraph and summarize the main idea of each part Para 1 Para 2 The evidence of dramatic climate change that had an impact on Earth’s ecology 瘦骨嶙峋 While-reading Find the key sentence of each paragraph and summarize the main idea of each part Para 3 The cause of the increase in the global average surface temperature While-reading Find the key sentence of each paragraph and summarize the main idea of each part Para 4 Para 5 The consequences of the rise in temperature The solutions to reducing greenhouse gas emissions While-reading Read for details：Read paragraph 1-2 and answer the questions. What happened to the polar bear in the photo? 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 temperatures due to climate change. While-reading Read for details：Read paragraph 1-2 and answer the questions. 2. Can you use your words to describe how climate change have influenced the polar bear’s life? its dead body found Climate change low sea-ice levels bears could not hunt had to travel greater distances to find food starved to death While-reading Read for details：Read paragraph 3 and answer the questions. 1. Why is the “natural” greenhouse effect important and necessary? 2. What are the consequences of high greenhouse gas emissions? More heat energy is trapped in the atmosphere and causes Earth’s surface temperature to rise quickly. Because it keeps Earth’s climate warm and habitable. While-reading Further thinking：Figure out the reason why earth’s temperature rising. Keeping Earth’s warm and habitable Greenhouse effect “Natural” greenhouse effect “man-made” greenhouse effect Causing Earth’s surface temperature to rise quickly if too much heat energy is trapped While-reading Read paragraph 4 and finish the mind map below. The rise in temperature serious damage, costing human lives, economic losses extreme weather/ natural disasters extreme rainstorms, heat waves led to example results While-reading Read for details：Read paragraph 5 and answer the questions. 1. Why did the author mention the climate scientists’ warning? To appeal to people to take appropriate actions and measures. 2. What examples 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. While-reading Read for details：Read paragraph 5 and answer the questions. What is the author’s purpose of writing this text? To draw readers’ attention to climate change and inspire them to do whatever they can to deal with this problem. Post-reading Read the paragraph 3 again and create a diagram describing how the greenhouse effect works. Heat released back into space Heat reflected back to Earth’s surface Sunlight Reflected sunlight Post-reading In Paragraph 5, the author hopes everyone can take actions to reduce our “carbon footprint”. As individuals, what can we do in our daily life to help to minimize climate change? Use renewable energies Save energy Stop using plastic bags Live a low-carbon life Use the minimum paper Take green transportation Take a shower instead of a bath Turn off the lights, computers etc. the moment you don’t need them … Post-reading Choose the right item from the box to make the summary complete. Change the form when necessary. starve, natural, ecology, natural disaster, carbon footprint, fossil fuel Warming oceans, melting ice and rising sea levels prove climate change is happening. Its shocking impact on Earth's 1. ______________ could be seen in a 2013 photo of a polar bear on the Norway's Arctic island of Svalbard that had 2. ______________ to death. Unable to hunt seals as before, scientists concluded low sea-ice levels due to climate change had forced it to travel long distances to find food. ecology starved Post-reading starve, natural, ecology, natural disaster, carbon footprint, fossil fuel Choose the right item from the box to make the summary complete. Change the form when necessary. When explaining climate change's causes, scientists often talk about two types of “greenhouse effect” — “3. ______________” and “man-made.” As the sun warms Earth, greenhouse gases in the atmosphere such as methane and carbon dioxide trap some heat in, making Earth warm enough to live on. Extra man-made greenhouse gases from burning 4. _______________ however trap even more heat in the atmosphere, leading to extreme weather and 5. _________________.  natural fossil fuels natural disasters Post-reading starve, natural, ecology, natural disaster, carbon footprint, fossil fuel Choose the right item from the box to make the summary complete. Change the form when necessary. Scientists warn of more disasters to come if this man-made global warming is not stopped. Both government and individual actions are required to reduce the carbon dioxide or “6. _______________” our lifestyles produce. So what will you do to help with the most serious issue? carbon footprint Language Points 1 melting ice 2 provide evidence of 3 a dramatic change 4 skin and bones 5 trap the heat 6 sustain life 7 huge amounts of 正在融化的冰 为……提供依据/证据 急剧变化 吸收热量 皮包骨 大量的 维系生命 Language Points 8 fossil fuels 9 pay a high price 10 long-lasting changes 11 make policies 12 seize the opportunity 13 map out 14 cause and effect 化石燃料 付出巨大的代价 持久的变化 抓住机会 制定政策 规划；安排 因果 Language Points 1. There is little doubt ______ Earth is getting warmer and warmer. (P26) 2. The “natural” greenhouse effect refers to the fact _____ heat from the sun enters the atmosphere and warms Earth’s surface as short-wave radiation. (P26 ~ P27) 毫无疑问，地球正变得越来越温暖。 “天然”温室效应指的是来自太阳的热量以短波辐射的形式进入大气层，使地表变暖。 同位语从句: 大多由从属连词_____引导,常常跟在order, report, wish, decision, suggestion, belief, doubt, fact, hope, message, news等抽象名词的_____，一般用来解释或说明这些名词的具体含义或内容。 that 后面 Language Points 即学即用 They expressed the hope _______ they would come over to China soon. Word has come _______ some American guests will come to our college for a visit next week. He can’t answer the question _______ he got the money from his home yesterday. Do you have any idea _______ is actually going on in the classroom? The problem ________ we should have the meeting in the hall now must be decided at once. that that how what whether Language Points 2. A warming ocean and atmosphere along with melting ice and rising sea levels provide evidence of a dramatic change in the global climate. (P26) 海洋和大气变暖，以及冰层融化、海平面上升，都为全球气候急剧变化提供了依据。 along with 连接前后两个主语时，谓语动词应和________那个主语保持一致，即“就远原则”。 前面的 Language Points 即学即用 A library with five thousand books _________ (offer) to the nation as a gift. All but one _____ (be) here just now. WeChat, as well as Ding Talk, __________ (play) an important part in daily communication nowadays. is offered were is playing Language Points 3. 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. (P26) 一位长期研究北极熊的专家说，从尸体的姿势看，这只像是饿死的。 I am really sorry to have given you so much trouble. He was believed to have been a reporter. I expect to have read the book by the weekend. I meant to have called you last night. 动词不定式完成时 Compare and Find Language Points 4. Experts claimed that low sea-ice levels caused by climate change meant the bear could not hunt seals as before, so it had to travel greater distances in order to find food. (P26) 专家称，气候变化导致的海冰面降低意味着北极熊无法像以前那样捕食海豹，于是它只能长途跋涉去寻找食物。 caused by climate change 在句中作____________。 后置定语 Language Points 即学即用 Prices of daily goods __________ (buy) through a computer can be lower than store prices. The prize of the game show is $30,000 and an all-expense- ______ (pay) vacation to China. The disco, digitally recorded in the studio, _______ (sound) fantastic at the party now. bought paid sounds Language Points 6. Greenhouse gases in the atmosphere, such as methane and carbon dioxide, trap some of the heat, keeping Earth’s climate warm and habitable. (P27) 大气层中甲烷、二氧化碳等温室气体吸收了部分热量，从而使地球保持气候温暖、适宜居住。(P27) v-ing短语 在句中作____________。 结果状语 Language Points 即学即用 ___________ (consider) the reasons mentioned above, we should take effective measures to protect our environment. The leader stayed up all night, _________ (think) of what to do the next day. ____________________ (not receive) her reply, he decided to send another e-mail to her. Considering thinking Not having received Language Points 7. There is strong and comprehensive evidence _____ the rise in temperature has led ___ an increase in extreme weather and natural disasters worldwide, not only causing serious damage, but also _______ (cost) human lives. (P27) 确凿、全面的证据表明，温度上升导致全球极端天气和自然灾害增多，不仅造成严重破坏，而且使人丧命。 [构词法]“-wide”表示 “……范围内的（地）” statewide ____________________ countrywide ____________________ industrywide ____________________ 全行业的 全州范围内的（地） 全国性的 Language Points 8. We as individuals can also reduce our “carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce. (P27) 作为个人，我们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”。 restrict (v.) 限制，限定（数量、范围等） restrict the number of students per class to 10 我控制自己每天只喝一杯奶茶。 Access to the club is restricted to members only. 俱乐部仅对会员开放 I restricted myself to drinking one cup of milky tea a day. 将每个班的学生人数限定为10人 39 x264 0.128.2216+688+32 a17ff54 tMod [8-bit@4:2:0 X86] x264 0.128.2216+688+32 a17ff54 tMod [8-bit@4:2:0 X86] $$