Unit 3 Period One Topic Talk(PPT课件)-【满分思维】2026-2027学年高中英语选择性必修第一册配套课件（北师大版）

Period One Topic Talk 1 主题素养积累 The only planet that supports life in the universe is our planet, the earth. An important aspect of this planet is the existence of the rich variety of natural resources like soil, water, forests and wildlife. These are valuable resources which need to be protected in order to maintain the ecological balance in nature. On the contrary, human beings are overusing these resources, which has led to several harmful effects on the environment. The ecological balance between living things is 主题素养积累 2 under threat. It is a matter of great concern as all creatures are dependent on each other. If a species of animal becomes extinct, this would in turn lead to chains of extinction. A biological explanation with regard to “chains of extinction” refers to species of animals that are linked with each other and are becoming extinct. When no single member of species is left to create young ones of its own kind, extinction becomes certain. Here's an example to show how all creatures are related to each other. Birds feed off many parasitic arthropods 主题素养积累 (寄生节肢动物) which are found on hippopotamuses (河马). So if the hippopotamuses die, the birds will become extinct too. This would further lead to destruction as the species that are dependent on the birds will also be badly affected. Actually everything that exists in nature is dependent and nothing can survive alone. If any of the species go missing, the whole chain will be broken and go out of control. So for a living thing to survive, it must allow other living things to survive. The result is a complete balance in nature. 主题素养积累 Already 97% of species that lived on the earth are now extinct. Therefore, there is an urgent need to protect the wildlife and their habitat properly and wisely, which is protecting human beings in fact. 主题素养积累 【主题词句背诵】 1.on the contrary相反,反之 2.overuse v.过度使用 3.be under threat受到威胁 4.a matter of great concern受到极大关注的问题 5.be dependent on依赖,依靠 主题素养积累 6 6.with regard to关于,至于 7.be linked with 与……连接 8.feed off 以……为食 9.go missing不见,消失,失踪 10.go out of control失去控制 11.These are valuable resources which need to be protected in order to maintain the ecological balance in nature. 这些都是宝贵的资源,需要加以保护,以保持自然界的生态平衡。 主题素养积累 7 12.This would further lead to destruction as the species that are dependent on the birds will also be badly affected. 这将进一步导致破坏，因为依赖鸟类的物种也将受到严重影响。 单元知识概览 核心 单词 conservation;destroy;recycle;informative;threat;switch;illegally;hunt; extinct;incredibly;urgent;unusual;mass;varied;decrease;blame;affect; endangered;restore;consumer;wasteful;wrap;transportation;dirt; swallow;realistic;innovative;aware;collection;anxious;reusable; destruction;stuck;jam;annoyed;anger;relate;regular;suit;involve; opponent;cruel;instance;claim;sum;memorial;historic;agricultural 主题素养积累 8 单元知识概览 核心 短语 have a role;do one's part;die out;wipe out;be to blame;be at risk;set out;stressed out;be related to;for instance;sum up 重点 句型 1. the way+定语从句 2.倍数表示法 3.so that引导从句 4.形容词短 语作状语 5.as 引导原因状语从句6.with复合结构 单元 语法 限制性定语从句和非限制性定语从句 单元 写作 应用文：正反观点对比议论文 读后续写：环境保护 续表 主题素养积累 9 语言知识梳理 课后习题 10 1.informative adj.有教育意义的;知识性强的 (教材P110) Yes, it was really informative! 是的,这真的很有启发性! (1)inform sb about/of sth 通知/告诉某人某事 keep sb informed of… 使某人随时了解(……的)最新情况 (2)information n. ［U］信息 (3)informed adj. 见多识广的,有学问的,有见识的 语言知识梳理 11 【活学活用】 (1)单句填空 ①［2024·浙江1月考］We are now ceaselessly bombarded (轰炸) with new ____________(inform). information ②His speech on the history of ancient civilizations was both interesting and ___________(inform), and the audience listened attentively throughout. informative ③An __________(inform) person is usually able to see the problem from different perspectives and come up with better solutions. informed 语言知识梳理 12 (2)写作金句 ①(应用文写作之告知信) As for your last letter asking about my plans for social practice, I am more than delighted ___________ ________________________. 关于你上次来信询问我的社会实践计划，我非常高兴地告知你一些 细节。 to inform you of/about some details ②(应用文写作话题之网络科技) The rapid development of We Media can __________________________ around the world. 自媒体的快速发展让我们随时了解世界各地的新闻。 keep us informed of news 语言知识梳理 13 2.threat n.威胁;(灾难等坏事)发生的可能 (教材P110) After the lecture, I can see that the use of oil and coal is one of the biggest threats to our planet. 讲座结束后,我明白了石油和煤炭的使用是对地球最大的威胁之一。 (1)a threat to 对……的威胁 under the threat of 处于……的威胁之下 (2)threaten vt. 威胁,恐吓 threaten to do sth 威胁要做某事 threaten sb with sth 用某物/某事威胁某人 (3)threatening adj. 恐吓的,有威胁性的 语言知识梳理 14 【活学活用】 (1)单句填空 ①David threatened __________(report) his neighbour to the police if his damages were not paid. to report ②His deep voice and cold stare were rather ____________(threaten) when he was angry, and nobody dared to say a word against him. threatening 语言知识梳理 15 (2)写作金句 ①(应用文写作话题之环境保护) Only when we learn to exist in harmony with nature, can we stop being a ___________________ _________________. 只有当我们学会与大自然和谐共处时,我们才能停止对野生动物和地 球的威胁。 threat to wildlife and to our planet 语言知识梳理 16 ②(读后续写之动作描写) The bear patted the fence fiercely, _________________________________ and strong claws. (非谓语) 这只熊猛烈地拍打着围栏,用它锋利的牙齿和强壮的爪子威胁着我们。 threatening us with its sharp teeth 语言知识梳理 17 3.urgent adj.紧急的,急迫的 (教材P110) That's an incredibly urgent matter… 这是一件非常紧急的事情…… (1)urge v. 竭力主张,强烈要求;敦促 n.冲动;强烈的愿望;迫切的要求 urge sb to do sth 催促某人做某事 urge that sb (should) do sth 主张/力劝某人做某事 It is urged that sb (should) do sth. 主张/力劝某人做某事。 (2)have an urge to do sth 渴望做某事 (3)urgency n. 紧急(的事)；迫切；强求；催促 语言知识梳理 18 【活学活用】 (1)单句填空 ①The doctor emphasized the need for _______(urge) medical attention after examining the patient's condition. ②They urged that the library _________________(keep) open during the vacation. urgent (should) be kept ③The_________(urge) of the matter was evident as the manager called an emergency meeting to address the critical issues facing the project. urgency 语言知识梳理 19 (2)写作金句 ①(读后续写之心理描写) I ________________________________ the random things that were being flashed before my eyes! 我有一种强烈的冲动想要看一看在我眼前闪过的那些随机的东西! had a strong urge to look at/see ②(读后续写之心理描写) _______________________________, trying to make out what exactly was disturbing him. 他敦促自己冷静下来，试图弄清楚到底是什么让他感到不安。 He urged himself to calm down 语言知识梳理 20 (教材P110) Well, as you know, I really feel strongly that we need to change the way we live in order to protect our planet.嗯,正如你所知,我真的强烈地认为,为了保护我们的地球,我们 需要改变我们的生活方式。 语言知识梳理 21 句型公式 the way+定语从句 【句式点拨】 句中the way是先行词, 并且在从句中作状语,相当于省略了in which 或that。若the/a way作先行词且定语从句中缺少主语或宾语时,则用 关系代词that或which。此外,the way to do sth/of doing sth是习惯 搭配,意为“做……的方式/方法”。 语言知识梳理 22 【活学活用】 (1)单句填空 ①The Internet is undoubtedly the best way ________(find) information on almost any matter. ②Nowadays, many of us try to live in a way ___________ will damage the environment as little as possible. to find that/which 语言知识梳理 23 (2)写作金句 (应用文写作话题之网络科技) It is no surprise that technology is influencing our social structures and the way _________________ _______________________________. 毫不奇怪,技术正在影响我们的社会结构以及我们与他人互动的方式。 (that/in which) we interact with one another/others 语言知识梳理 24 课 后 习 题 25 Ⅰ单词拼写(每小题1分，共5分) 1.The committed environmentalist refused to use _______ (塑料制的) bags, opting for reusable ones to reduce waste. plastic 2.The deer ____________(被猎杀) by the skilled hunter who had been tracking it for days in the forest. was hunted 1 2 3 4 5 课 后 习 题 26 3.We carefully labeled each ______(物品) with the contents and the date. item 4.The ambitious athlete decided to _______(转换) his training routine to improve his chances of winning the championship. switch 5.Climate change poses a severe _______(威胁) to agricultural production. threat 1 2 3 4 5 课 后 习 题 27 Ⅱ单句填空(每小题1.5分，共12分) 1.The _____________(conserve) of endangered species is crucial, and committed scientists are devoted to this cause. conservation 2.The ___________(inform) lecture by the professor inspired the ambitious students to explore the subject further. informative 3.The injured athlete needs medical attention _________(urgent), so he was rushed to the nearest hospital. urgently 4.The ___________(destroy) of the old factory means the loss of jobs for many employees. destruction 1 2 3 4 5 6 7 8 课 后 习 题 28 5.The __________(extinct) of certain languages is a cultural loss that affects the diversity of human expression. extinction 6.Many people are concerned about the immigrants living ________(illegal) in the country without proper documentation. illegally 7.The athlete's performance in the competition was __________(incredible) outstanding. incredibly 8.Most of the cardboard boxes in the warehouse can ____________(recycle), which helps reduce production costs. be recycled 1 2 3 4 5 6 7 8 课 后 习 题 29 Ⅲ短语填空(每小题2分，共10分) 1.The hospital will still ____________(起某种作用) in treating complex, life-threatening illnesses. have a role 2.There is no doubt that we can make our world beautiful as long as we ____________(尽我们的职责). do our part 3.It is widely accepted that cellphones must be turned off or ____________(转到) flight mode before the plane takes off. switched to 1 2 3 4 5 课 后 习 题 30 4.They __________(砍倒) trees and use chemicals that kill the plants that monarch caterpillars eat. cut down 5.The rare species of birds are __________(处境危险) if their natural habitat continues to be destroyed. in danger 1 2 3 4 5 课 后 习 题 31 Ⅳ句型训练(每小题3分，共6分) 1.They introduced the beginnings of the English language, and changed _________________________________________. 他们引入了英语的雏形,并改变了人们建造房屋的方式。 the way (that/in which) people built houses 2._________________________, “Laughter is the sun that drives winter from the human face.”(as) 正如维克多·雨果(Victor Hugo)曾经说过的那样:“笑容如同阳光,能驱 散人们脸上的寒冬。” As Victor Hugo once said 1 2 课 后 习 题 32 Ⅴ阅读理解(每小题2.5分，共10分) During Yang Zhongkai's early years, a 500-year-old majestic ginkgo (银杏) tree that did not sprout leaves for two to three years at a stretch used to be a daily sight for him on his way to and from high school. Since villagers widely regarded the tree as having the power to make their wishes come true, they used to kneel down in front of the “lucky” tree and burn offerings under it, which led to prolonged heat exposure at its roots, stunting its growth. 1 2 3 4 课 后 习 题 33 “Millions of such old trees are in urgent need of protection, given their importance as vital biological resources and symbols of ecological civilization,” said Yang, who started the team— Zhiyue—dedicated to protecting ancient trees. “But the recording and management of ancient and famous trees nationwide commonly rely on Excel spreadsheets (电子表格), which present issues such as information silos, lack of real-time updates and incomplete content,” he said. 1 2 3 4 课 后 习 题 34 However, things have changed of late. Yang and his team now use the artificial intelligence technology developed by Tencent Cloud to identify and register trees accurately based on individual traits and GPS tracking. “With the acceleration of a new generation of technological revolution and industrial transformation, new technologies bring more excitement to the protection of ancient trees,” Yang said. “We can now collect data on the trees' growth, health and environment in real time, which helps us make informed decisions on how to better protect them.” 1 2 3 4 课 后 习 题 35 “In addition to applying cutting-edge technologies such as AI and large models to assist in the development of traditional industries, the company also makes great efforts to promote the development of charitable causes through technological and platform advantages,” Wu Yunsheng said, vice-president of Tencent Cloud, adding that “the power of technology can change the world”. 【文章大意】本文是一篇说明文，介绍了杨忠凯团队借助腾讯云人 工智能技术保护古树的做法。 1 2 3 4 课 后 习 题 36 ( )1.What does the underlined word “stunting” in Paragraph 1 probably mean? A.Preventing. B.Boosting. C.Keeping. D.Recording. √ 1 2 3 4 课 后 习 题 37 [解析] 词义猜测题。根据第一段中“Since villagers widely regarded the tree as having the power to make their wishes come true, they used to kneel down in front of the ‘lucky’ tree and burn offerings under it, which led to prolonged heat exposure at its roots,stunting its growth.”(由于村民们普遍认为这棵树具有实现他 们的愿望的力量，所以他们过去常常跪在“幸运”树前，在树下焚烧祭 品，这导致其根部长时间暴露在高温下，阻碍了其生长。)可知，村 民过去常在大树下燃烧贡品，导致大树的根部长时间暴露在高温之 下，从而阻碍了大树的生长，画线单词stunting意为“阻碍”，故选A。 1 2 3 4 课 后 习 题 38 ( )2.What can we infer about Tencent Cloud's new technology? A.It will replace Excel spreadsheets in the future. B.It is an effective tool to protect ancient trees. C.It will be widely used in modern industries. D.It has remarkable advantages over other AI. √ 1 2 3 4 课 后 习 题 39 [解析] 推理判断题。根据第三段中“We can now collect data on the trees' growth, health and environment in real time, which helps us make informed decisions on how to better protect them.”(现在，我们可以实时收集有关树木生长、健康和环境的数据， 这有助于我们做出有根据的决定，更好地保护它们。)可知，腾讯云 是一种保护古树的有效工具，故选B。 1 2 3 4 课 后 习 题 40 ( )3.What is Wu Yunsheng's attitude towards the application of technology? A.Sceptical. B.Cautious. C.Supportive. D.Indifferent. √ 1 2 3 4 课 后 习 题 41 [解析] 推理判断题。根据最后一段“‘In addition to applying cutting-edge technologies such as AI and large models to assist in the development of traditional industries, the company also makes great efforts to promote the development of charitable causes through technological and platform advantages,’ Wu Yunsheng said, vice-president of Tencent Cloud, adding that ‘the power of technology can change the world’.”(“除了应用人工智能、 大模型等前沿技术助力传统产业发展外，公司还通过技术和平台优 势大力推动慈善事业发展。”腾讯云副总裁吴运声表示，并补充说“科 技的力量可以改变世界”。)可知，他对于科技使用的态度是支持的， 故选C。 1 2 3 4 课 后 习 题 42 ( )4.What's the purpose of the passage? A.To emphasize the importance of technology. B.To show technology's aid to ancient trees. C.To introduce Tencent Cloud's new function. D.To arouse the awareness of protecting trees. [解析] 推理判断题。通读全文可知，文章介绍了杨忠凯团队借助腾 讯云人工智能技术保护古树的做法，以此展现人工智能对于古树保 护的作用，故选B。 √ 1 2 3 4 课 后 习 题 43 Ⅵ阅读七选五(每小题2.5分，共12.5分) My mum is one of the least wasteful people I know. She always brings her own metal containers to buy basic foods like rice and flour. 1.___ The key is to be creative about reducing plastic and other waste—just like my mum does at home. One effective way is to conduct a review of household rubbish. List the rubbish by room or by activity. 2.___ This examination will help you assess your waste output and identify the ways to reduce it. For example, use reusable bags if you find a lot of plastic bags piling up under your sink. B D 1 2 3 4 5 课 后 习 题 44 3.___ A lot of low-waste solutions might seem like they require buying special containers like silicone (硅胶) replacements for your ziplock (带封口的) bags. But you don't need to spend money on those items. Instead, figure out a way to repurpose the waste. Use empty cans, boxes and other food containers to store leftovers. Beyond repurposing food containers, explore ways to save household items before throwing them away. Maybe you can mend an old pair of jeans instead of buying a new pair. A 1 2 3 4 5 课 后 习 题 45 Or maybe you can cut up old T-shirts into rags, which is what my mum used to do with my dad's old T-shirts. 4.___ I don't feel bad about getting grease (油脂) on them. Remember: lowering the amount of waste you create doesn't have to be an all-or-nothing pursuit. 5.___ E F 1 2 3 4 5 课 后 习 题 A.You can try reusing your containers. B.You can live a low-waste lifestyle too. C.She used to bring reusable bags to the market. D.You might write “used wipes and paper towels” under “nursery”. E.I do this now too and the rags are perfect for household cleaning. F.Find changes that work for you and you'll be more likely to stick with them. G.You can try sourcing your own food by growing a garden in your community. 1 2 3 4 5 课 后 习 题 47 【文章大意】本文是一篇说明文。文中通过具体事例和建议，向读者 介绍了减少家庭浪费的方法，鼓励创造性地减少塑料和其他废弃物。 1 2 3 4 5 课 后 习 题 48 1.___ B [解析] 由上文“My mum is one of the least wasteful people I know. She always brings her own metal containers to buy basic foods like rice and flour.”可知，本空要说与“不浪费”有关的话题， 由后文“The key is to be creative about reducing plastic and other waste—just like my mum does at home.”可知，本句要表达 “你也可以像她一样不浪费”有关的话题，故B选项(你也可以过低浪费 的生活。)能承上启下，符合文意。故选B。 1 2 3 4 5 课 后 习 题 49 2.___ D [解析] 由上文“One effective way is to conduct a review of household rubbish. List the rubbish by room or by activity.”可知， 本空要说与“如何进行垃圾分类”有关的话题，故D选项(你可以在“儿 童房”下面写上“用过的湿巾和纸巾”。) 能承接上文，符合文意。故 选D。 1 2 3 4 5 课 后 习 题 50 3.___ A [解析] 由下文“A lot of low-waste solutions might seem like they require buying special containers like silicone (硅胶) replacements for your ziplock (带封口的) bags. But you don't need to spend money on those items. Instead, figure out a way to repurpose the waste. Use empty cans, boxes and other food containers to store leftovers.”可知，本段主要讲述重新利用容器的建议，故A选项 (你可以试着重复使用你的容器。)可以作为本段的首句，直接点明主 题，符合段落大意。故选A。 1 2 3 4 5 课 后 习 题 51 4.___ E [解析] 由上文“Maybe you can mend an old pair of jeans instead of buying a new pair. Or maybe you can cut up old T-shirts into rags, which is what my mum used to do with my dad's old T-shirts.”可知，本空要进一步说明这种方法的有效性，故E选项 (我现在也这样做了，这些抹布非常适合家庭清洁。)能承接上文，符 合文意。故选E。 1 2 3 4 5 课 后 习 题 52 5.___ F [解析] 由上文“Remember: lowering the amount of waste you create doesn't have to be an all-or-nothing pursuit.”可知，末段 总结全文，指出减少垃圾的产生不必一下子做到完美，故F选项 (找到适合你的改变，你会更有可能坚持下去。)鼓励读者根据自身情 况做出调整并持之以恒，可以作为总结句。故选F。 1 2 3 4 5 课 后 习 题 53 Ⅶ语法填空(每小题1.5分，共15分) A research team led by Guo Songtao, professor at the Northwest University in China, is developing a system with facial recognition and other technologies 1.___________(identify) golden snub-nosed monkeys (川金丝猴), 2._______ are a protected species living in the Qinling Mountains in Northwest China. Called “Tri-AI”, the system can detect, track and recognize individual animals from videos and images, 3.________(make) all-time monitoring and behaviour analysis of animals possible. to identify which making 1 2 3 4 5 6 7 8 9 10 课 后 习 题 54 “In the past few years, machine learning 4.________________ _______(apply) to recognize species, but accurate individual recognition is the first step to do in animal behaviour analysis and animal 5.___________(protect),” Guo told Global Times, noting the system enables researchers to achieve this goal. has been applied protection 1 2 3 4 5 6 7 8 9 10 课 后 习 题 55 6.__________(previous), to monitor and track a particular animal, researchers usually used radio collars (无线电项圈) to mark 7.___. But this method often injures the animal or is easy to be disturbed by bad weather, leaving the researchers faced 8._____ the challenge of finding out the one they want to track among a group of animals in the wild. With the facial recognition technology 9._________(adopt) on animals, it may be much 10._______(easy) to protect rare animals than 10 years ago. Previously it with adopted easier 1 2 3 4 5 6 7 8 9 10 课 后 习 题 56 【文章大意】这是一篇说明文。文章主要介绍了中国的西北大学教 授郭松涛领导的一个研究小组正在开发一个利用面部识别和其他技 术来识别川金丝猴的系统。 1.___________ to identify [解析] 考查非谓语动词。此处表示目的，应用不定式作目的状语， 故填to identify。 2._______ which [解析] 考查定语从句。空处引导非限制性定语从句，修饰先行词 golden snub-nosed monkeys，指物，且从句中缺少主语，应用关 系代词which来引导，故填which。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 57 3.________ making [解析] 考查非谓语动词。句中有谓语，且前后无连词，此处应用非 谓语动词作状语，逻辑主语是前面整个句子，和动词make之间是主 动关系，应用现在分词作状语，故填making。 4._________________ has been applied [解析] 考查动词时态、语态和主谓一致。此处在句中作谓语，由in the past few years可知，应用现在完成时，主语machine learning 和动词apply之间是被动关系，应用现在完成时的被动语态，主语是 不可数名词，助动词应用has，故填has been applied。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 58 5.___________ protection [解析] 考查名词。此处应用名词protection作宾语，意为“保护”时为 不可数名词，故填protection。 6.__________ Previously [解析] 考查副词。此处应用副词previously作状语，修饰整个句子， 单词位于句首，首字母大写，故填Previously。 7.___ it [解析] 考查代词。此处应用代词it，代指上文提到的a particular animal，作宾语，故填it。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 59 8._____ with [解析] 考查介词。 (be) faced with为固定搭配，意为“面对”，故填 with。 9._________ adopted [解析] 考查非谓语动词。 “With the facial recognition technology…on animals…”是with复合结构，即“with+宾语+宾语补足 语”，宾语the facial recognition technology和动词adopt之间是被动 关系，应用过去分词作宾语补足语，故填adopted。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 60 10._______ easier [解析] 考查形容词比较级。由than 10 years ago可知，此处表示比 10年前更容易，是比较级，应用形容词easy的比较级easier作表语， 故填easier。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 61 $