Unit 3 Section Ⅰ Reading and thinking-【金版新学案】2025-2026学年高中英语选择性必修第三册同步课堂高效讲义教师用书（人教版）

本高中英语讲义聚焦“人与自然——环境保护”主题，核心知识点为气候变化的成因、影响及应对措施。通过Pre-reading图片分析与问题导入激活背景知识，While-reading从主旨、结构到细节深化文本理解，Post-reading通过难句解构、写作佳句及语法填空巩固语言运用，构建“导入-理解-运用”完整学习支架。 该资料亮点在于融合语言能力与思维品质培养，如While-reading段落匹配训练信息整合能力，北极熊案例分析引导批判性思考；Post-reading提供写作模板提升表达准确性。课中助力教师引导学生深度探究，课后词汇句式练习帮助自主查漏补缺，强化学习能力。

主题语境：人与自然——环境保护 单元目标速览 单元话题导入 学生用书第49页 Section Ⅰ　Reading and thinking Step 1　Pre-reading 1．Look at the pictures and tell us what is happening. 2．What causes these problems? Global warming. 3．What do you know about climate change? Climate change refers to long-term changes in the temperature，weather patterns，and environmental conditions on Earth.It is mainly caused by human activities，such as burning fossil fuels，deforestation，and industrial processes，which release greenhouse gases into the atmosphere. Step 2　While-reading Ⅰ.Read for the main idea 1．What is the text mainly about? A．The causes of global warming. B．The impact of global warming on ecosystems. C．The solutions to the problem of climate change. D．The effects of climate change on the planet. 答案：D 2．Match the main idea with each paragraph. Para.1　A．The call to action for governments and individuals. Para.2 B．The consequences of rising temperatures. Para.3 C．Introduction to climate change. Para.4 D．The impact on wildlife. Para.5 E．The greenhouse effect. 答案：Paras.1－5　CDEBA Ⅱ.Read for the structure Ⅲ.Read for details 1．What evidence is provided in the text to show climate change is happening? A．The decrease in greenhouse gases. B．The expansion of forests worldwide. C．The melting of glaciers and rising sea levels. D．The freezing of the Arctic and polar bear sightings. 2．What caused the polar bear's death，according to the experts? A．Starvation due to lack of sea ice. B．Disease spread by other animals. C．Hunting accident caused by humans. D．Extreme weather events in winter. 3．How does the author develop Paragraph 3? A．By explaining the greenhouse effect. B．By describing the sun's strong radiation. C．By comparing two greenhouse effects. D．By providing evidence of climate change. 4．What is the major concern about the “man-made” greenhouse effect? A．It makes weather patterns unpredictable. B．It raises global temperatures too quickly. 学生用书第50页 C．It cools the planet's surface significantly. D．It reduces heat absorbed by the atmosphere. 答案：1－4　CACB 5．What are the potential long-term effects on biodiversity if climate change continues at the current rate? Climate change could lead to species extinction，disrupt ecosystems，and reduce biodiversity，affecting food chains and ecological stability. 6．How can individuals and communities cooperate to address climate change beyond personal lifestyle changes? Communities can advocate for policy changes，support green businesses，and engage in local sustainability projects to collectively reduce carbon footprints. Step 3　Post-reading Ⅰ.难句解构 1．According to the scientists who found its dead body，all that remained of the polar bear was “skin and bones”． [句式分析]　本句是一个复合句。主句为all was “skin and bones”，其中who found its dead body为who引导的定语从句，修饰先行词scientists；that remained of the polar bear为that引导的定语从句，修饰先行词 all。 [句意翻译]　据发现北极熊尸体的科学家说，这只北极熊仅剩“皮包骨”。 2．Climate scientists often mention a key climate process called the “greenhouse effect”，which has two common meanings：the “natural” greenhouse effect and the “man-made” greenhouse effect. [句式分析]　本句是复合句。主句为Climate scientists often mention a key climate process，called the “greenhouse effect”是动词-ed形式短语作后置定语，修饰名词process；“which has...effect”是由which引导的非限制性定语从句，修饰先行词the “greenhouse effect”。 [句意翻译]　气候科学家经常提到一个被称为“温室效应”的重要气候过程，它有两个普遍的含义：“自然”温室效应和“人为”温室效应。 3．There is strong and comprehensive evidence that the rise in temperature has led to an increase in extreme weather and natural disasters worldwide，not only causing serious damage，but also costing human lives. [句式分析]　本句是一个复合句。主句是There is strong and comprehensive evidence，that引导的是同位语从句，解释说明evidence的具体内容；not only...but also...连接两个并列的动词-ing形式短语causing serious damage和costing human lives作结果状语。 [句意翻译]　有确凿而全面的证据表明，气温上升已导致世界范围内极端天气和自然灾害的增加，不仅造成了严重破坏，而且使人丧命。 4．It is our responsibility to seize every opportunity to educate everyone about global warming，along with its causes and impacts，because this is the most serious issue affecting all of us on this planet. [句式分析]　本句是复合句。主句核心结构为It is our responsibility to do sth，It为形式主语，to seize...是真正的主语；because引导原因状语从句，其中affecting all of us on this planet为动词-ing形式短语作后置定语，修饰issue。 [句意翻译]　我们有责任抓住每一个机会，教育每个人了解全球变暖，包括其成因和影响，因为这是影响这个星球上我们所有人的最严重的问题。 Ⅱ.写作佳句 1．句型　There is evidence that... 教材原句　There is strong and comprehensive evidence that the rise in temperature has led to an increase in extreme weather and natural disasters worldwide，not only causing serious damage，but also costing human lives. ①有证据表明清理活动能改善当地生态系统，所以加入我们的海滩清洁活动吧。 There is evidence that clean-up activities can improve local ecosystems，so join us for our beach clean-up event. 学生用书第51页 ②有确凿且令人信服的证据表明，污染导致了空气质量的下降，不仅危害健康，还影响环境。 There is strong and convincing evidence that pollution has led to the decline of air quality，not only harming health，but also affecting the environment. 2．句型　It is our responsibility to... 教材原句　It is our responsibility to seize every opportunity to educate everyone about global warming，along with its causes and impacts，because this is the most serious issue affecting all of us on this planet. ①为了子孙后代，减少浪费并保护环境是我们的责任。 It is our responsibility to reduce waste and protect the environment for future generations. ②为了保护环境，我们有责任抓住每一个机会提高公众对塑料污染的认识，包括其来源和影响，因为这是我们环境面临的最大威胁之一。 It is our responsibility to take every chance to raise public awareness about plastic pollution，along with its sources and effects，because this is one of the biggest threats to our environment. Ⅲ.课文语法填空 There is little doubt 1.that Earth is getting warmer and warmer.In 2013，a lot of people 2.were shocked(shock) by a news photo of a dead polar bear that appeared to have starved and died.This alarming case showed how the increase in temperature had an impact 3.on Earth's ecology. What is causing the increase? Climate scientists think it is the “greenhouse effect”，4.which includes the “natural” greenhouse effect and the“man-made” greenhouse effect.The “man-made” greenhouse effect has become 5.a big problem.People produce huge amounts of extra greenhouse gases，leaving more heat energy 6.trapped(trap) in the atmosphere.The rise in temperature has led to an increase in natural 7.disasters(disaster). Climate scientists have warned that appropriate actions should be taken.Otherwise there will be a 8.higher(high) price to pay.Governments should take measures 9.to reduce (reduce) greenhouse gas emissions.It is also our 10.responsibility(responsible) to seize every opportunity to educate everyone about global warming. ◎核心单词——练通 1．a live broadcast　　　　　　　 一场现场直播 2．seize the opportunity 抓住机会 3．have an impact on Earth's ecology 对地球生态有影响 4．be released back into space 被释放回太空 5．carbon dioxide 二氧化碳 6．burn fossil fuel 燃烧化石燃料 7．strong and comprehensive evidence 确凿而全面的证据 8．make policies 制定政策 9．the warming trend 变暖的趋势 ◎拓展单词——用活 1．starve vi.& vt.(使)挨饿；饿死→starvation n．饿死→starving adj.挨饿的 2．habitable adj.适合居住的→habitability n．可居住；适于居住→habitant n．居民；居住者 3．sustain vt.维持；遭受；承受住→sustainable adj.可持续的；合理利用的→sustainability n．持续性；能维持性 4．frequently adv.频繁地；经常→frequent adj.频繁的；经常发生的→frequency n．频率；频繁 5．restrict vt.限制；限定；束缚→restriction n．限制规定；限制法规；约束→restricted adj.受限制的 ◎阅读单词——识记 1．as the graph shows　　　　 如图所示 2．begin to melt 开始融化 学生用书第52页 3．carbon footprint 碳足迹 4．attract worldwide attention 引起全世界的关注 5．restrict the gas emissions 限制气体排放 6．hunt seals 捕食海豹 ◎重点短语——再现 第一组　汉译英 1．对……产生影响　　　　　　 have an impact on 2．参考；涉及；指的是 refer to 3．沿(顺)着；连同……一起；与……一道；随同……一起 along with 第二组　英译汉 4．be trapped in 被困在…… 5．lead to 引起，导致 6．result in 导致 ◎典型句式——默背 根据课文语境及汉语提示补全句子 1．句型公式　There is no/little doubt that...“毫无疑问……” 教材原句　There is little doubt that (毫无疑问)Earth is getting warmer and warmer (see the graph). 2．句型公式　动词-ing形式短语作结果状语 教材原句　Greenhouse gases in the atmosphere，such as methane and carbon dioxide，trap some of the heat，keeping Earth's climate warm and habitable (使地球保持气候温暖、适宜居住). 3．句型公式　without虚拟条件句 教材原句　Without this process (如果没有这一过程)，Earth could not sustain life. Ⅰ.核心词汇练全 starve vi.&vt.(使)挨饿；饿死 (教材原句)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. 一名多年研究北极熊的专家说，从尸体的姿势看，这只北极熊似乎是饿死的。 (1)starve for 　　　 渴望，极想得到 starve to death 饿死 (2)starvation n. 挨饿 (3)starving adj. 饥饿的，挨饿的 be starving for sth/to do sth 渴望某事/做某事　　 单句语法填空/完成句子 (1)In some parts of the world，people still starve to death due to lack of food. (2)After months of working non-stop，she was starving for a vacation. (3)The charity organization is working hard to prevent starvation(starve) in the drought-affected regions. (4)After hiking for hours，we were all starving(starve) and couldn't wait to eat. (5)我们的学生渴望您的指导，去探索科学的奇妙。 Our students starve for your guidance to explore the wonders of science. release vt.&n.排放；释放；发布 (教材原句)The heat is released back into space at longer wave lengths. 这一热量以更大的波长被释放回太空。 (1)release...from...　 把……从……释放 (2)release n. 发行；解脱 on/in release 发行，在公映　　 单句语法填空/完成句子 (1)Her latest album has been in/on release for a month and is already a huge success. 学生用书第53页 (2)The charity aims to release children from poverty through education. (3)哭过之后，她感到一种释放。 After crying，she felt a sense of release． sustain vt.维持；遭受；承受住 (教材原句)Without this process，Earth could not sustain life.如果没有这一过程，地球就无法维系生命。 (1)sustain damage/an injury/a defeat 遭受损失/伤害/失败 sustain one's interest 保持某人的兴趣 (2)sustainable adj. 可持续的；合理利用的　　 单句语法填空/完成句子 (1)The company is committed to using sustainable(sustain) materials in its products. (2)He sustained (sustain) a serious injury in the car accident and had to be hospitalized. (3)老师通过互动活动来保持学生对课程的兴趣。 The teacher used interactive activities to sustain the students' interest in the lesson． restrict vt.限制；限定；束缚 (教材原句)We as individuals can also reduce our “carbon footprint” by 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所产生的二氧化碳的排放量来减少我们的“碳足迹”。 (1)restrict...to... 把……限制在…… (2)restriction n. 限制规定；限制法规；约束 (3)restrictive adj. 限制性的；约束的　　 单句语法填空/完成句子 (1)The library restricts the number of books you can borrow to five at a time. (2)There are strict restrictions (restriction) on smoking in public places. (3)The restrictive (restriction) policies made it difficult for small businesses to grow. (4)要成为聪明的在线学习者，我们应该把玩电脑游戏限制在不到30分钟。 To be smart online learners，we should restrict ourselves to playing computer games for less than 30 minutes. seize vt.抓住；夺取；控制 (教材原句)It is our responsibility to seize every opportunity to educate everyone about global warming... 我们有责任抓住每一个机会教育每个人了解全球变暖…… seize a chance/an opportunity　 抓住机会/机遇 seize sb by the＋身体部位 抓住某人的…… be seized with 被(强烈的情感、愿望等)影响　　 单句语法填空/完成句子 (1)The teacher seized the boy by the arm to stop him from running. (2)听到巨响时，她突然感到恐惧。 She was seized with fear when she heard the loud noise. (3)鉴于你英语口语不好，我强烈建议你抓住每个机会说英语。 Given that you don't get along well with oral English，I strongly suggest that you (should) seize every chance/opportunity to speak English． 学生用书第54页 Ⅱ.典型句式讲透 句型公式：There is no/little doubt that...“毫无疑问……” (教材原句)There is little doubt that Earth is getting warmer and warmer (see the graph). 毫无疑问，地球正在变得越来越温暖(见图表)。 (1)There is no/little doubt that...“毫无疑问……”，其中that引导同位语从句。 (2)doubt用作名词时，在肯定句中用whether(不可用if)引导同位语从句；在否定句中用that引导同位语从句。 (3)doubt用作动词时，在肯定句中后跟if/whether引导的宾语从句；在否定句或疑问句中后跟that引导的宾语从句。　 单句语法填空/完成句子 (1)There is some doubt whether the team can win the championship without their star player. (2)There is little doubt that climate change is having a profound impact on global weather patterns. (3)I doubt whether/if he will attend the meeting，as he hasn't confirmed his availability yet. (4)毫无疑问，互联网的发明彻底改变了我们交流和获取信息的方式。 There is no/little doubt that the invention of the Internet has revolutionized the way we communicate and access information. 句型公式：without虚拟条件句 (教材原句)Without this process，Earth could not sustain life.如果没有这一过程，地球就无法维系生命。 (1)在虚拟结构中，如果表示与现在或将来事实相反的假设，句子谓语用would/should/could/might＋do；如果表示与过去事实相反的假设，则句子谓语用would/should/could/might＋have done。 (2)虚拟条件句还可以用but for，otherwise，or，but等词来引导。　　 单句语法填空/完成句子 (1)But for gravity，everything on Earth would float into space. (2)I would not have been late for class but there was a terrible traffic accident. (3)父亲耐心地指导了这对双胞胎。否则，他们就不会做出如此美味的早餐了。 The father patiently guided the twins.Otherwise/Or they wouldn't have cooked such a delicious breakfast． (4)没有她的指导，我们根本不可能按时完成项目。 Without her guidance，we would have never completed the project on time. 学科网（北京）股份有限公司 $