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

UNIT 3 Environmental Protection 1. What can you see in the picture? 2.What is the cause of this phenomenon? Lead-in A large piece of ice is breaking off a large glacier or ice sheet. Global warming 点击添加内容 Think and talk What other consequences may global warming bring about? Think and talk What other consequences may global warming bring about? the rise of sea level dying animals coastal cities submerged（淹没） Think and talk What other consequences may global warming bring about? natural disasters extreme weather economic losses drought Earth provides enough to satisfy every man’s needs, but not every man’s greed. — Mohandas K. Gandhi 地球能满足人类的需要，但满足不了人类的贪婪。 P25 1. What happened to the polar bear? 2. What is the graph about? 3. What information can you get from it? The polar bear may died for lacking food. CLIMATE CHANGE REQUIRES THE WORLD’S ATTENTION P26 shows how much the temperature has risen above what it would usually be at a base level. Temperature Anomaly（气温反常现象） 1. What's the type of this text? A. Essay 论文 B. Biography 传记 C. Exposition. 说明文 D. Argumentation. 议论文 2. What's its purpose? To inform readers to deal with climate change To persuade readers to focus on limited resources 3. In which part of a newspaper or magazine may we find this passage? A. Entertainment B. Economy C. Education D. Environment Fast-reading Read for structure -Expository Essay Find out the topic sentence of each paragraph. （5min） problem cause consequence solutions problem cause consequence 11 Find out the topic sentence of each paragraph. （5min） solutions cause consequence Para 1 Para 2 The evidence of dramatic climate change that had an impact on Earth’s ecology 瘦骨嶙峋 problem 12 Find out the topic sentence of each paragraph. （5min） solutions consequence problem Para 3 The cause of the increase in the global average surface temperature cause 13 Find out the topic sentence of each paragraph. （5min） cause problem Para 4 Para 5 The consequences of the rise in temperature The solutions to reducing greenhouse gas emissions solutions consequence problem-solution pattern 14 Reading for the details (Para1):A problem What? Evidence a warming ocean & atmosphere melting ice rising sea level Climate’s is getting warmer and warmer climate change starvation longer food-seeking travel lack of food low sea-ice level The following reasons account for the death of the polar bear, with one influencing another. Read paragraph 2 and put them in a correct logical order. What is the root cause? Para 2： Cause and effect lead to； cause; account for 2.Why is the “natural” greenhouse effect important and necessary? 3.What are the consequences of high greenhouse gas emissions? (Para3): The causes Greenhouse effect _________ greenhouse effect ____________ greenhouse effect Function(作用): “Natural” “Man-made” A big problem: keeping Earth's climate warm and habitable causing Earth’s surface temperature to rise quickly Read paragraph 3 and create a diagram describing how the greenhouse effect works.(P27 E3) Heat released back into space Heat reflected back to Earth’s surface Reflected sunlight Atmosphere Sunlight A diagram describing how the greenhouse effect works Para 4 consequence Q1. What are the consequences of the global temperature rise? Q2. Why did the author mention the climate scientists’ warning? The rise in the temperature extreme weather & natural disasters serious damage, costing human lives extreme rainstorms, heatwaves led to results examples Because global warming needs everyone’s attention and it is essential that we take appropriate actions. 20 What examples of extreme weather and disasters do you know? Make a list of them. 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). Discussion 点击添加内容 Para 5 solutions solutions governments make policies take appropriate actions and measures individuals reduce our “carbon footprint” by… educate everyone about global warming Climate change Evidence Solutions Causes Consequences government individuals extreme weather natural disasters Greenhouse effect natural greenhouse effect man-made greenhouse effect Greenhouse effect Group work Can you draw a mind map? Group discussion As a student, what can we do to deal with climate change in our daily life? Turn off the lights and fans when leaving Plant more trees Take the stairs instead of elevator Use basket or environmental basket bag instead of plastic bag Go outdoors by bike instead of by car/bus 1. Lucid waters and lush mountains are valuable as "mountains of gold and silver". 青山就是金山银山。 2. If we don't save water, the last drop of water will be our tear. 如果我们不节约用水，那么最后一滴水将会是我们的眼泪。 3. Only by changing the way we treat the environment can we get along well with it. Only by saving the environment can we save ourselves. 我们只有政变对待环境的方式，才能和它好好相处。我们只有拯救环境，才能拯救自己。 More English idioms 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 Important phrases (P26 ~ P27) 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 Important phrases (P26 ~ P27) 句式分析 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。 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) that 后面 that that “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。 毫无疑问，地球正变得越来越温暖。 Important sentences (P26 ~ P27) 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. 即学即用 that that how what whether Important sentences (P26 ~ P27) 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”。 句式分析 A warming ocean and atmosphere along with melting ice and rising sea levels provide evidence of a dramatic change in the global climate. (P26) 前面的 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。 Important sentences (P26) 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. 即学即用 is offered were is playing Important sentences (P26 ~ P27) v-ing 短语在句子中作__________。 句式分析 结果状语 3. 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) Important sentences (P27) 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 Important sentences (P27) [构词法]“-wide”表示 “……范围内的（地）” statewide _________________ countrywide _______________ industrywide _______________ 拓展 4. 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) that to costing 全行业的 全州范围内的（地） 全国性的 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。 Important sentences (P27) restrict (v.) 限制，限定（数量、范围等） 5. 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 the number of students per class to 10 将每个班的学生人数限定为10人 Access to the club is restricted to members only. 俱乐部仅对会员开放。 I restricted myself to drinking（drink） one cup of milky tea a day. 我控制自己每天只喝一杯奶茶。 Important sentences (P27) 拓展运用 The earliest studies have suggested a link between calorie __________ (restrict) and slowing aging. We make no restrictions ______ the kinds of films we show — as long as a film’s quality meets our standards. Don’t restrict yourself to _________ (make) friends — it will help increase your knowledge. restriction on making Important sentences (P27) Lavf57.71.100 Codec by Bilibili XCode Worker v4.8.61(fixed_gap:False) Lavf58.29.100 Bilibili VXCode Swarm Transcoder v0.3.78 Lavf58.20.100 Tencent CAPD MTS Lavf57.71.100 Packed by Bilibili XCoder v2.0.2 $$