Unit 3 Period One Topic Talk(Word讲义)-【满分思维】2026-2027学年高中英语选择性必修第一册学生用书（北师大版）

Unit 3　CONSERVATION Period One　Topic Talk 【语言知识梳理】 词汇点睛 1.(1)①information　②informative　③informed (2)①to inform you of/about some details ②keep us informed of news 2.(1)①to report　②threatening (2)①threat to wildlife and to our planet ②threatening us with its sharp teeth 3.(1)①urgent　②(should) be kept　③urgency (2)①had a strong urge to look at/see ②He urged himself to calm down 句型透视 (1)①to find　②that/which (2)(that/in which) we interact with one another/others 学科网（北京）股份有限公司 $ Unit 3　CONSERVATION 　　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 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 (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. 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 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。 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 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 Period One　Topic Talk 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 【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).  ②His speech on the history of ancient civilizations was both interesting and 　　　　　(inform), and the audience listened attentively throughout.  ③An 　　　　　　(inform) person is usually able to see the problem from different perspectives and come up with better solutions.  (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。 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。 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 【活学活用】 (1)单句填空 ①David threatened 　　　　　　　(report) his neighbour to the police if his damages were not paid.  ②His deep voice and cold stare were rather 　　　　(threaten) when he was angry, and nobody dared to say a word against him.  (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。 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。 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 【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.  ③The　　　　(urge) of the matter was evident as the manager called an emergency meeting to address the critical issues facing the project.  (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! 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。 (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。 the way+定语从句 句型公式　 【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”。 【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.  (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。 学科网（北京）股份有限公司 $