Unit 3 Section Ⅰ “Reading and Thinking”的课文习读环节-【新课程学案】2025-2026学年高中英语选择性必修第三册教师用书word（人教版）

本讲义围绕“环境保护”主题，系统整合语言输入（听空气污染对话、读气候变化说明文与水污染报告、看绿色学校视频）与输出（写环境问题报告、说雾霾原因及环保措施），并融入直接引语与间接引语转换的语法项目，构建从主题理解到语言运用的完整学习支架。 该资料亮点在于融合文化意识（培养人类命运共同体意识）与思维品质（通过环保误区辨析如“纸袋比塑料袋更环保”培养批判性思维），语言赏析（如“trapped”生动表现热量被困状态）提升语言能力。课中辅助教师引导文本分析，课后助力学生巩固语言技能与环保认知，查漏补缺。

把握单元素养目标 主题 意识 本单元围绕“环境保护”这一主题展开,探讨了气候变化在不同国家和地区中的表现以及这些变化给不同国家和地区的人们的生活和生产带来的影响,旨在帮助学生理解并感悟个人在环境保护中的作用和意义,培养人类命运共同体意识,节约地球资源,保护地球家园。 语法 项目 理解并正确运用直接引语和间接引语的转换规则,能根据不同语境将陈述句、一般疑问句、特殊疑问句和祈使句形式的直接引语转述为间接引语。 语言 输入 听 听懂并理解关于空气污染问题的对话。 读 阅读有关气候变化的说明文,理解其原因、探究其解决方法及如何控制全球气候变暖的进程;阅读水污染治理的报告,学习报告文体的语篇结构和写作方法,掌握相关的主题词汇。 看 观看绿色学校的视频,培养环保意识,提高合理利用资源、保护环境的能力。 语言 输出 写 就生活中的环境问题写一份报告,说明问题的特征、形成原因和治理方案。 说 结合常识来探讨雾霾产生的原因,描述有关环保措施和行动的见闻,并发表自己的看法。 Section Ⅰ “Reading and Thinking”的课文习读环节 泛读课文,完成以下学习任务 (一)理清文脉结构 (二)把握主旨大意 1.What is the theme of the text about? A.Continued greenhouse gas emissions. B.The causes and effects of global warming. C.A dramatic change in the global climate. D.The “natural” greenhouse effect. 答案:B 2.What’s the author’s purpose in writing this text? A.To show us the bad effects of global warming. B.To explain the meaning of “carbon footprint”. C.To tell us to prevent disasters from happening. D.To call on us to do our bit to protect our planet. 答案:D 精读课文,完成以下学习任务 (一)阅读理解 1.Which of the following is not a proof of a dramatic change in the global climate? A.A warming ocean and atmosphere. B.Melting ice. C.Rising sea levels. D.A large population. 2.What does the case of the polar bear show? A.Food shortage becomes a major threat to creatures. B.Human activities affect the survival of polar bears. C.The increase in temperature has an effect on Earth’s ecology. D.The hunting behaviour of mankind leads to the sharp decrease of animals. 3.In the “natural” greenhouse effect,how is heat released back into space? A.In short wave form. B.At longer wave lengths. C.In the form of methane. D.In the form of carbon dioxide. 4.What is the author’s attitude towards “greenhouse effect”? A.It benefits humans. B.It does harm to humans. C.It has both good and bad sides. D.Human beings should eliminate it. [Tip] 观点态度题巧解答 文章中有时并未直接给出明确的观点态度,需要通过分析文章中的措辞,把握细节信息来推断作者的观点态度。 如本文第三段中,根据细节信息“Greenhouse gases in the atmosphere ... to rise quickly”可知,作者陈述了温室效应的利与弊,从而可以判断答案。 5.Which of the following is not mentioned to deal with global warming? A.People do not use plastic bags in their daily life. B.Governments make policies and take measures to reduce greenhouse gas emissions. C.People change inappropriate lifestyles. D.People educate others about global warming,along with its causes and impacts. 答案:1~5　DCBCA (二)阅读表达 1.Why is the “natural” greenhouse effect important and necessary? Greenhouse gases in the atmosphere trap some of the heat, keeping Earth’s climate warm and habitable. Without this process, Earth could not sustain life.  2.Do you think climate change is the result of human activities?Give your reasons. Yes, humans burn fossil fuels like coal, natural gas and oil to produce energy, which give off greenhouse gases that trap heat from the sun and therefore warm the Earth. So, the growth of the greenhouse gases actually comes as a result of things we do every day and the way we produce and use energy.  3.As a student, what should you do to deal with climate change? I will try going to school by bike or on foot to reduce the “carbon emissions”.  |阅|读|技|能|提|升| 关注说明文的行文结构 本文是一篇说明文,采用递进式的行文结构,按照“提出问题—分析原因及影响—提出解决办法”的顺序由浅入深,层层递进。作者首先使用统计图表直观展示气候变化的趋势,同时使用饿死的北极熊的例子和照片来具体说明气候变暖的影响,从而帮助读者初步感知气候变暖给地球带来的负面影响。第三段客观地探讨了气候变暖背后的原因;第四段分析了气候变暖的后果;文章最后,作者呼吁世界各国政府携起手来,共同制定政策,采取措施减少温室气体的排放。在阅读分析原因及影响的内容时要特别关注but或however之后的内容,因为作者真正想说的内容在but或however之后,这也是出题人经常设题的位置。 (一)赏用词之妙 1.According to the scientists who found its dead body, all that remained of the polar bear was “skin and bones”. 赏析:作者用“skin and bones”形象地表达出北极熊惨不忍睹的状况。 2.When people produce huge amounts of extra greenhouse gases by burning fossil fuels, more heat energy is trapped in the atmosphere and causes Earth’s surface temperature to rise quickly. 赏析:“trapped”这个词用得非常巧妙,它有“困住”“捕捉”的意思,生动形象地表现出热量被限制在大气层中无法逸散的状态,增强了表达的感染力和画面感。 提能训练/完成句子 ①We should take action to protect our environment before our earth is reduced to skin and bones.  我们应该采取行动来保护我们的环境,以免我们的地球变得骨瘦如柴。 ②The little bird was trapped in the net, but with the help of kind⁃hearted people, it was eventually freed.那只小鸟被困在了网里,但在善良的人们的帮助下,它最终自由了。  (二)赏句式之高 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. 赏析:“that low ... find food”为that 引导的宾语从句。在宾语从句中,“caused by climate change”为过去分词短语作后置定语,修饰low sea⁃ice levels;“the bear ... as before”为省略了引导词that的宾语从句。 提能训练/完成句子 We all believe that the earth, which is surrounded by clear rivers and green mountains, will always be a beautiful home for us to cherish and protect with our efforts.  我们都相信,这个被绿水青山环绕的地球,将永远是需要我们努力去珍惜和保护的美丽家园。 (三)赏衔接之顺 There is strong and comprehensive evidence ..., not only causing serious damage, but also costing human lives ... In fact, news reports are frequently broadcast about extreme rainstorms and heatwaves causing deaths and economic losses. 　　赏析:本段文字是对影响和后果的紧迫性分析,通过使用not only ...but also, In fact等衔接词,说明气温上升已导致世界范围内极端天气和自然灾害的增加。 提能训练/完成句子 ①By burning tree branches, pine needles, and pine cones, many people not only warm their houses but also improve the smell in the house.  通过燃烧树枝、松针和松果,许多人不仅给屋子供暖,而且还改善了屋内的气味。 ②In fact, we all know that the earth is our home, and if we don’t take measures to protect the environment, what awaits us in the future will be a world full of pollution and destruction.  事实上,我们都知道地球是我们的家园。如果我们不采取措施保护环境,那么未来等待我们的将是一个充满污染和破坏的世界。 (四)赏结尾之翘 So what will you do to help? 赏析:以问题“那么,你会做些什么来贡献力量呢?”来结束本文,既能引发读者对气候变化的深入思考,加强读者的互动,又能再次强调主旨“气候变化需要全世界的关注”。 　　我们大部分人都意识到要保护环境,也采取了各种行动节约能源,减少浪费和污染。但是近来,一些“绿色环保真相”被证实并非完全正确,甚至是无稽之谈。下面列举了一些常见的环保观念,你知道哪些是正确的吗? What’s really green? Most of us are aware that we must take care of the environment, and the majority of us take steps to save energy and reduce waste and pollution. But recently, some “green truths” have been shown to be only half true, or even completely false. Here are some common ones.Which are really green? ?Paper shopping bags are better than plastic ones. Plastic bags cause litter and are a danger to wild animals, which mistake them for food. It takes hundreds of years for plastic to break down, but much less time for paper. Because of this, people think paper bags are the better environmental choice. However, making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water.The process also produces more greenhouse gases. In fact, both kinds of bags are bad for the environment. So, take a reusable bag with you when you go shopping. ?When you turn off a device, it stops using power. When we turn off a device, such as television, it goes into stand⁃by mode. Devices in this mode still use power, and older devices in stand⁃by mode can use even more. electricity continues to leak from the device, even when it is turned “off”. To make sure your appliance is in fact off, remove the plug from its power supply.  ?Eating local food is good for the environment. It seems like common sense:eating local food should be better for the environment, because it does not need to be transported long distances and kept cold during transport. Unfortunately, it is not that simple. produces most of the greenhouse gases. In some cases, and produced more greenhouse gases than produce grown a long way away — even taking into account its transport.  ?It’s better to take a shower than a bath. It depends on how long you spend in the shower and how large your bath is. If you spend more than eight minutes in a shower, you’ll use as much water as in a bath — about 50 litres of water. Therefore, the key is to keep your shower time as short as possible. Environmental awareness is now part of daily life. But it’s worth checking common ideas and opinions to see what’s really green. [阅读理解] 1.What is the author’s suggestion when you go shopping? A.Taking a plastic bag. B.Using a paper bag. C.Carrying a reusable bag. D.Putting your purchases in pockets. 2.What should you do to save energy when leaving your home? A.Turn off a device. B.Remove the plug from its power supply. C.Remove the device from the house. D.Leave the device on. 3.What can you do to become truly green? A.Take a shower rather than a bath. B.Share your opinions with people around you. C.Change your attitude to environmental protection. D.Check your environmental ideas often and see if they are truly green. 答案:1~3　CBD [素养积累] 1.由文积词汇 litter n.　　　　　　 垃圾 reusable adj. 可以再次使用的 stand⁃by adj. 备用的 device n. 设备;仪器;装置 leak v. 漏;渗漏 appliance n. 家用电器;家用器具 transport v. 运输;运送 2.据文悟句式 句①　because引导原因状语从句;when引导时间状语从句。 句②　本句使用了强调句型,此处强调了句子的主语 “the production of food, not its transport”。 句③　 might have done sth. “过去可能做了某事”,表示对过去所发生事情的推测。 学科网（北京）股份有限公司 $