Unit 5 Section Ⅲ Developing ideas(课件PPT)-【学霸笔记·同步精讲】2026-2027学年高中英语选择性必修第一册(外研版)

2026-10-14
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教辅
高智传媒科技中心
进店逛逛

摘要:

该高中英语课件围绕“植物的交流方式”核心主题,通过《阿凡达》图片及视频片段课前导入激趣启思,以“速读理脉络(填空)—精读悟细节(选择与批判性问题)—学以致用(语法填空)”为学习支架,衔接从兴趣激发到语言理解再到应用的完整学习过程。 其亮点在于融合跨媒介素材与科学文本,通过语块翻译、句型解构提升语言能力,借助“植物万维网”类比互联网培养思维品质,分层练习(品句填词、阅读七选五)发展学习能力。学生能提升语言运用与批判性思维,教师可依托系统教学支架高效实施教学。

内容正文:

Section Ⅲ Developing ideas UNIT 5 Revealing nature 1 目 录 CONTENTS Part Ⅰ Reading comprehension Part Ⅱ Language points 课时作业 2 Part Ⅰ  Reading comprehension 目 录 第一步 课前导入•激趣启思 Look at the pictures below, and then answer the following questions. 1. How do you communicate with each other? ⁠ ⁠ We, human beings, can communicate with each other through face-to -face talking, body language and the Internet. 整体理解·学语篇 2. Look at the pictures from Avatar below and think about what interesting facts you can get from this short video. ⁠ ⁠ For me, I found it definitely amazing that trees can communicate with people in Avatar! 英 语·选择性必修第一册(WY) 目 录 第二步 速读课文•理清脉络 Skim the passage and fill in the blanks. 英 语·选择性必修第一册(WY) 目 录 第三步 精读课文•领悟细节 Task 1:Read the passage carefully and choose the best answers. 1. What can we learn from paragraph 3?(  ) A. Plants can release chemicals from the roots. B. Plants can release chemicals when attacked. C. Chemicals from some plants destroy the other plants. D. Scientists find the method of growing crops without pesticides. √ 英 语·选择性必修第一册(WY) 目 录 2. How many ways that plants communicate are talked about in the passage?(  ) A. 1. B. 2. C. 3. D. 4. 3. Which of the following shows the structure of the passage?(  ) ①=paragraph 1 ②=paragraph 2 ③=paragraph 3 ④=paragraph 4 ⑤=paragraph 5 ⑥=paragraph 6 A. ①/②/③④⑤/⑥ B. ①②/③④⑤/⑥ C. ①②③/④⑤/⑥ D. ①/②③④⑤/⑥ √ √ 英 语·选择性必修第一册(WY) 目 录 4. What is the author’s purpose in writing this passage?(  ) A. To encourage people to study plants. B. To introduce ways of communication between plants. C. To argue why plants are able to communicate. D. To tell us some myths about talking plants. √ 英 语·选择性必修第一册(WY) 目 录 Task 2:Think creatively and critically and answer the questions. Do you think it’s useful to study the secrets of plants communication? Why? What can we benefit from it? ⁠ ⁠ ⁠ ⁠ ⁠ As far as I am concerned, it is very important to study this.Because it can not only benefit human beings a lot but also be good to creatures around us.We can better understand nature, summarize the laws, and promote harmony between humans and nature for a brighter future of the world. 英 语·选择性必修第一册(WY) 目 录 第四步 课文融通•学以致用   根据课文内容,在空白处填入1个适当的单词或括号内单词的正 确形式。   Modern research is showing that plants can communicate 1. ⁠ each other.   It has been known for some time that plants use chemicals to communicate with each other.The plant releases chemicals from the leaves that 2. ⁠ (eat).This is like a warning, or a with are being eaten 英 语·选择性必修第一册(WY) 目 录 call for help:“I’m being attacked!” When another plant detects the chemicals, it starts to release its own, different chemicals.Some of these chemicals drive insects 3. ⁠.   More 4. ⁠ (surprise), plants also use sound to communicate.Some plants make noises with their roots.A chilli plant can tell 5. ⁠ a neighbouring plant is helpful, or unfriendly.Some trees make clicking noises when there is not enough water, 6. ⁠ (indicate) drought is arriving. away surprisingly if indicating 英 语·选择性必修第一册(WY) 目 录   Most surprisingly of all, plants have an amazing system of 7. ⁠ (communicate) that can link nearly every plant in a forest.Scientists call this system the “wood wide web”.This fungal network 8. ⁠ (link) the roots of different plants to each other.9. ⁠ (use) the wood wide web, plants can share information and even food with each other.Plants can steal food 10. ⁠ each other, or spread poisons to attack other plants.   Maybe one day we will be able to “talk” with plants ourselves. communication links Using from 英 语·选择性必修第一册(WY) 目 录 The Secret Language of Plants   Talking plants have long been a thing of myths and legends①.Many cultures have stories of talking trees [1]that give advice as well as warnings② to people. Alexander the Great and Marco Polo were said to have visited such a tree in India.And in some modern stories, such as the film Avatar, trees can communicate with animals and people③. 篇章赏读·习语言   [2]With us long believing that talking plants are fantasy, new research has revealed something amazing④: it appears that plants can communicate after all⑤.   【释疑难】 [1]that引导定语从句,修饰先行词talking trees。 【赏靓点】 [2]句使用了“with+宾语+宾语补足语 (doing)”的复合结构作状语,简洁地概括了人们长久以来的既定观 念。冒号后的内容揭示了新的科学发现,与前半句形成鲜明对比,引 出文章主题。 英 语·选择性必修第一册(WY) 目 录 Paras.1-2 语块翻译 ① ⁠ ② ⁠ ③ ⁠ ④ ⁠ ⑤ ⁠ 神话传说 既给予建议又给予警告 与动物和人交流 揭示了某种惊人的事情 终究;毕竟 英 语·选择性必修第一册(WY) 目 录   [3]It has been known for some time that plants use chemicals to communicate with each other.This happens when a plant, say a bean plant, gets attacked by⑥ insects.The plant releases tiny amounts of⑦ chemicals from the leaves that are being eaten.[4]This is like a warning, or a call for help: “I’m being attacked!” When another bean plant detects the chemicals⑧ from its injured neighbour, it starts to release its own, different chemicals.Some of these chemicals drive insects away⑨.Others attract insects — the wasps! The wasps kill the insects that are eating the bean plants.Scientists hope to learn more about this plant warning system, [5]so that we can use it to grow crops without pesticides. 英 语·选择性必修第一册(WY) 目 录   More surprisingly, plants also use sound to communicate.People can’t hear these sounds, but plants are making them.Some plants make noises⑩ with their roots.Corn and chilli plants do this.They also “listen” to the noises from other plants.A chilli plant can tell if a neighbouring plant is helpful, or unfriendly.Some trees make clicking noises when there is not enough water, [6]indicating drought is arriving.   【释疑难】 [3]It作形式主语,真正的主语是that引导的从 句。 英 语·选择性必修第一册(WY) 目 录   [5]so that引导目的状语从句,意为“以便,为了”。   [6]indicating ...为动词-ing形式作伴随状语。 【赏靓点】 [4]句运用了明喻和拟人的修辞手法,将植物释 放化学物质这一生物反应比作人类发出的“警告”或“求救信号”, 并直接引用了拟人化的台词,使枯燥的科学现象变得生动有趣,通俗 易懂。 英 语·选择性必修第一册(WY) 目 录 Paras.3-4 1. 语块翻译 ⑥ ⁠ ⑦ ⁠ ⑧ ⁠ ⑨ ⁠ ⑩ ⁠ 受到……的攻击 释放微量的…… 察觉到化学物质 驱赶昆虫 发出声音 英 语·选择性必修第一册(WY) 目 录 2. 熟词生义 (1)say (Para.3) 熟义:v.说 文中义:v.比如说;假设 (2)drive (Para.3) 熟义:v.驾驶 文中义:v.驱赶;迫使(离开) 英 语·选择性必修第一册(WY) 目 录   Most surprisingly of all, plants have an amazing system of communication⑪ [7]that can link nearly every plant in a forest. Scientists call this system the “wood wide web”.It is in some ways similar to the Internet we use.[8]While the Internet is a worldwide network of computers⑫ linked by cables and satellites, the wood wide web is linked underground by fungi.This fungal network links the roots of different plants to each other.Using the wood wide web, plants can share information⑬ and even food with each other.For example, some pine trees can send food to⑭ smaller pine trees to help them grow. 英 语·选择性必修第一册(WY) 目 录 But just like our own Internet, the wood wide web has its own version of “cybercrime”.Plants can steal food from each other, or spread poisons to attack other plants.Perhaps one day scientists will learn [9]how to create a “firewall” to help prevent these attacks⑮ within the wood wide web.   Scientists are learning more every day about the secret ways [10]in which plants talk to each other.Who knows? Maybe one day we will know enough about plant communication to be able to “talk” with them ourselves. 英 语·选择性必修第一册(WY) 目 录   【释疑难】 [7]that引导定语从句,修饰先行词 communication。   [8]linked by ...为过去分词短语作后置定语,修饰名词 computers。   [9]“疑问词+动词不定式”结构作learn的宾语。   [10]in which引导定语从句,修饰先行词ways。 【赏靓点】 [8]句作者将人类的互联网(由电缆和卫星连 接)与植物的“万维网”(由地下真菌连接)进行类比,突出了两者 在结构上的相似性,解释了“wood wide web”这一概念的由来。 英 语·选择性必修第一册(WY) 目 录 Paras.5-6 1. 语块翻译 ⑪ ⁠ ⑫ ⁠ ⑬ ⁠ ⑭ ⁠ ⑮ ⁠ 交流系统 全球计算机网络 分享信息 输送养分给…… 防止这些攻击 英 语·选择性必修第一册(WY) 目 录 2. 靓词 (1)link (Para.5) 赏析:link既指物理上的“连接”,也呼应了上文Internet的“链 接”,形象地描绘了真菌网络在地下错综复杂的关系。 (2)firewall (Para.5) 赏析:firewall使用了隐喻。防火墙本指电脑网络的安全系统,这里用 来指代未来可能研发出的保护植物免受真菌网络攻击的科学手段,用 词新颖且贴切。 英 语·选择性必修第一册(WY) 目 录 参考译文 植物密语   会说话的植物一直是神话传说中的一大元素。在许多种文化中流 传下来的故事里,会说话的树给予人们忠告和警示。据说亚历山大大 帝和马可•波罗曾在印度见过一棵会说话的树。在一些现代故事—— 例如电影《阿凡达》中,树可以与人类和动物沟通交流。   我们一直认为会说话的植物只存在于幻想之中,但新研究有了令 人惊奇的发现:植物间似乎确实可以交流。 英 语·选择性必修第一册(WY) 目 录   人们早就知道植物可以利用化学物质进行交流。当一株植物—— 比如豆科植物——被昆虫袭击时,就会发生这种情况。正遭受啃食的 叶子会释放出微量的化学物质,这像是警示,抑或求救:“我被攻击 了!”当另一株豆类植物察觉到附近受伤同伴释放的化学物质时,它 自身便开始释放不同的化学物质,其中一些能驱赶昆虫,而另一些则 会吸引另一种昆虫——黄蜂!黄蜂会杀死那些啃食豆类植物的昆虫。 科学家们希望能进一步了解这种植物警报系统,从而将其应用于不用 使用农药的农作物的种植。 英 语·选择性必修第一册(WY) 目 录   更不可思议的是,植物也能用声音交流。虽然人类听不到,但植 物确实正在发出声音。有些植物通过根部发出声响,比如玉米和辣 椒。它们还能“听见”其他植物发出的声响。由此,辣椒可以知道自 己附近的植物是敌是友。还有些树木在水分不足时会发出咔嗒声,以 示干旱就要来了。   最令人惊奇的是,植物拥有一套神奇的信息交流系统,几乎可以 连接起森林中所有的植物。科学家们称之为“植物万维网”。在某种 程度上,它很像人类使用的互联网。互联网是通过电缆和卫星连接的 全球计算机网络,而植物万维网则是在地下通过真菌连接而成的。这 英 语·选择性必修第一册(WY) 目 录 个真菌网络将不同植物的根彼此连接,通过它,植物可以互相分享信 息甚至是食物。比如,某些松树会通过真菌网络向松树幼苗输送养 分,帮助它们生长。但是,像互联网一样,植物万维网也会发生“网 络犯罪”。植物会偷取同伴的养分,或散播有毒物质攻击其他植物。 也许未来某一天,科学家会研究出建造“防火墙”的方法来阻止植物 万维网中的这些攻击。   科学家们每天都在增进对植物间相互沟通的秘密方式的了解。谁 知道呢?说不定哪一天,我们就能足够了解植物沟通的知识,从而亲 自和植物“聊天”了。 英 语·选择性必修第一册(WY) 目 录 Part Ⅱ Language points 目 录 31 Ⅰ.阅读词汇 1. ancient Greek myths 古希腊 ⁠ 2. a wasp sting ⁠蜇伤 3. grow crops without pesticides 种植不使用 ⁠的农作物 4. leave out the chilli 不放 ⁠ 5. fight against cybercrime 与 ⁠作斗争 神话 黄蜂 农药 辣椒 网络犯罪 Ⅱ.写作词汇 1. tree  树根 2. only a few high 只有几厘米高 roots centimetres 课前自测·夯语基 Ⅲ.多义词汇 ①link nearly every plant in a forest  几乎 ⁠森林中所有的植物 ②a link between hard work and success  努力工作与成功之间的 ⁠ 连接 联系 英 语·选择性必修第一册(WY) 目 录 Ⅳ.拓展词汇 1. v.发现,察觉(尤指不易觉察到的事物)→detectable adj.可觉察的;可发现的→detective n.侦探→detection n.探测,侦 查→detector n.探测器 2. n.传说,传奇(故事)→legendary adj.传奇的 detect legend 英 语·选择性必修第一册(WY) 目 录 【构词法】 1. 名词+-ary构成形容词 ①element→elementary 基本的 ②moment→momentary 短暂的;暂时的 ③custom→customary 习惯的;习俗的 2. 动词+-ive构成名词 ①correct→corrective 矫正;修改 ②alternate→alternative 替换物;取舍 ③cooperate→cooperative 合作企业;合作社组织 英 语·选择性必修第一册(WY) 目 录 Ⅴ.短语互译 1.  和,也,除 2.  和……交流 3.  毕竟,终究 4.  在某些方面 5. side by side ⁠ 6. share ...with ... ⁠ 7. drive away ⁠ 8. be similar to ⁠ as well as communicate with after all in some ways 并排地 和……分享…… 赶走,驱散 与……相似 英 语·选择性必修第一册(WY) 目 录 Ⅵ.句型填空 1. 句型公式:...be said to have done sth 教材原句:Alexander the Great and Marco Polo ⁠ ⁠ such a tree in India. 据说亚历山大大帝和马可•波罗曾在印度见过一棵会说话的树。 were said to have visited 英 语·选择性必修第一册(WY) 目 录 2. 句型公式:so that引导目的状语从句 教材原句:Scientists hope to learn more about this plant warning system, ⁠ to grow crops without pesticides. 科学家们希望能进一步了解这种植物警报系统,从而将其应用于不用 使用农药的农作物的种植。 so that we can use it 英 语·选择性必修第一册(WY) 目 录 3. 句型公式:连词while表示对比 教材原句: ⁠ linked by cables and satellites,the wood wide web is linked underground by fungi. 互联网是通过电缆和卫星连接的全球计算机网络,而植物万维网则是 在地下通过真菌连接而成的。 While the Internet is a worldwide network of computers 英 语·选择性必修第一册(WY) 目 录 写作词汇集释 1. root n.根 v.(使)生根,扎根 教材原句 Some plants make noises with their roots.有些植物通过根 部发出声响。 核心知识·巧突破 【用法】 (1)take root(植物)生根;(思想)植根,深入人心(后常跟介 词in) (2)be rooted in  植根于……;由……产生 root out  铲除,清除;彻底解决 root for  支持;为……鼓劲 英 语·选择性必修第一册(WY) 目 录 【佳句】 The educational program took root in the community, providing children with opportunities they had never had before. 该教育项目在社区扎根,为孩子们提供了前所未有的机会。 (活动 介绍) 【串记】 Greed is the root of evil. Once it takes root, it is hard to remove. 贪婪是邪恶的根源。一旦它扎根,很难根除。 英 语·选择性必修第一册(WY) 目 录 【练透】 用root的相关短语填空 ①To keep fit, we should take active measures to ⁠ unhealthy eating habits from our daily lives. ②During the sports meet, students gathered on the playground to ⁠ ⁠ the runners in the final race. root out root for 英 语·选择性必修第一册(WY) 目 录 【写美】 完成句子 ③(2025•全国二卷)I explained that my name isn’t just a random combination of sounds; instead, it ⁠ a love for nature in Chinese culture. 我解释说,我的名字并非随意组合的音节,而是深深植根于中国文化中对自然的热爱。 is deeply rooted in 英 语·选择性必修第一册(WY) 目 录 2.drive ...away 把……赶走 教材原句 Some of these chemicals drive insects away.其中一些化学 物质能驱赶昆虫。 英 语·选择性必修第一册(WY) 目 录 【用法】 (1)drive sb crazy/mad把某人逼得发疯/发狂 drive sb to do sth  迫使某人做某事 drive off  驱车离去;驶去 be driven by   被……驱使 drive sb home  开车送某人回家 drive to work  开车上班 (2)go for a drive  开车去兜风 英 语·选择性必修第一册(WY) 目 录 【点津】 动词drive的过去式和过去分词均为不规则形式,分别为 drove和driven。 【练透】 单句语法填空/完成句子 ①His deep love for nature drove him ⁠ (spend) most of his holidays planting trees in the mountains. ②The loud noise from the construction site ⁠ (把我逼 疯). to spend drove me crazy 英 语·选择性必修第一册(WY) 目 录 【写美】 完成句子 ③He got in his car, started the engine, and ⁠. 他坐进车里,发动引擎,然后快速驱车离去。 drove off quickly 英 语·选择性必修第一册(WY) 目 录 3. link v.把……联系起来;连接 n.联系;关系;链接 教材原句 Most surprisingly of all, plants have an amazing system of communication that can link nearly every plant in a forest.最令人惊奇的 是,植物拥有一套神奇的信息交流系统,几乎可以连接起森林中所有 的植物。 英 语·选择性必修第一册(WY) 目 录 【用法】 link up联合,连接;使结合;使连接 link up with  与……联合/汇合/碰头 link ...with/to ...  将……和……连接起来 be linked with/to  与……有关 【佳句】 The friends linked arms and walked down the street. 朋友们挽着胳膊沿街行走。 (动作描写) 英 语·选择性必修第一册(WY) 目 录 【联想】 表示“把……与……相联系”还可用 connect ...with ..., associate ...with ...等固定搭配 来表达。 【练透】 单句语法填空 ①The new high-speed railway will link ⁠ the major cities in the southern part of our country. ②I suggest that our school football team should link up ⁠ a local club to improve our skills. up with 英 语·选择性必修第一册(WY) 目 录 【写美】 完成句子 ③Lack of exercise ⁠ various health problems such as obesity and heart disease. 缺乏锻炼与肥胖、心脏病等各种健康问题有关。 is linked with/to 英 语·选择性必修第一册(WY) 目 录 阅读词汇清障 Ⅰ.一词多义 快速阅读下列句子并选出句中加蓝词汇对应的意思 decline A. n.减少,下降  B. v.减少,下降  C. v.婉拒 ①She declined the invitation to the party because she had a prior engagement.  ⁠ ②The population of this small town has been declining in the past three years.  ⁠ ③There has been a gradual decline in the number of tourists visiting the small town.  ⁠ C  B  A  英 语·选择性必修第一册(WY) 目 录 Ⅱ.熟词生义 根据语境写出加蓝词的词性和含义 1. The root of the problem lies in the lack of communication between the two parties.  ⁠ 2. The legend on the map clearly indicates the different types of roads.  ⁠ n.根源,起因 n.图例 英 语·选择性必修第一册(WY) 目 录 重点句型解构 ◇句型公式:so that引导目的状语从句 教材原句 Scientists hope to learn more about this plant warning system, so that we can use it to grow crops without pesticides. 科学家们希望能进一步了解这种植物报警系统,从而将其应用于不用 使用农药的农作物的种植。 英 语·选择性必修第一册(WY) 目 录 【用法】 (1)so that 引导目的状语从句,意为“为了……,以便……”,从 句中常使用can/could/may/might/will/would/should等情态动词; (2)so that引导结果状语从句,意为“以至于;结果”,从句中一 般不用情态动词。 【佳句】 The weather was so bad so that the game had to be canceled.天气太糟糕了,以至于比赛不得不取消。 【点津】 so that引导目的状语从句时,可以与in order that互换。 英 语·选择性必修第一册(WY) 目 录 【写美】 微写作 ①(2025•全国一卷)我们可以描述一名学生的外貌特征或兴趣爱 好,以便大家能更好地相互了解。 (建议信) We can describe a student’s features or hobbies ⁠ ⁠. ②雨下得很大,结果街道被淹没了。 It rained heavily ⁠. so that everyone can get to know each other better so that the streets were flooded 英 语·选择性必修第一册(WY) 目 录 课时作业 目 录 58 维度一:品句填词 1. A key ⁠ (特征) of a healthy diet is a proper balance between vegetables, fruits and meat. 2. According to local ⁠ (传说), this special soup was first made to help people stay healthy in winter. 3. The doctor suggested that the desk should be at least 70 ⁠ (厘米) high for comfortable writing. characteristic legends centimetres 英 语·选择性必修第一册(WY) 目 录 4. Healthy plants usually have strong ⁠ (根) that can absorb enough water and nutrients from the soil. 5. Many ancient ⁠ (神话) explain how our ancestors understood the world and the power of nature. 6. In the history museum, we saw many ⁠ (原始的) weapons which were used for hunting thousands of years ago. 7. The two famous museums are ⁠ (连接) by a beautiful underground passage for the convenience of visitors. roots myths primitive linked 英 语·选择性必修第一册(WY) 目 录 8. The language is spoken by people w ⁠, making it a truly global language. 9. Some animals can d ⁠ the approach of an earthquake through changes in the environment. orldwide etect 英 语·选择性必修第一册(WY) 目 录 维度二:词形转换 1. It is my firm ⁠ (believe) that a positive attitude toward life is the secret to staying young. 2. We should pay more attention to the quality of food instead of its ⁠ (appear) when shopping. 3. The speaker’s story about health was ⁠ (amaze), and it inspired many students to change their lifestyles. 4. ⁠ (surprise), the boy who used to hate vegetables has now become a fan of organic food. belief appearance amazing Surprisingly 英 语·选择性必修第一册(WY) 目 录 5. These two healthy recipes are prepared ⁠ (similar), but they offer quite different tastes and nutrition. 6. To avoid physical ⁠ (injure) while running, you should choose a pair of professional sports shoes. 7. With the development of technology, ⁠ (communicate) has become much more convenient. 8. We should respect ⁠ (culture) differences when we interact with people from other countries. similarly injuries communication cultural 英 语·选择性必修第一册(WY) 目 录 9. Scientists are working hard to develop more advanced ⁠ (detect) methods. 10. The Great Wall is a major tourist ⁠ (attract) in China, drawing millions of visitors every year. detection attraction 英 语·选择性必修第一册(WY) 目 录 维度三:固定搭配和句式 1. The lifestyle in this small village ⁠ (非常类似) what I experienced in my childhood. 2. I’m writing to ask for some advice on how to ⁠ (与……交流) my parents more effectively. 3. ⁠ (随着天气变暖), more and more people choose to go out for a walk after dinner. 4. ⁠ (据报道) eating too much sugar can lead to serious health problems like heart disease. is very similar to communicate with With the weather getting warm It’s reported that 英 语·选择性必修第一册(WY) 目 录 5. I suggest you should eat more vegetables ⁠ ⁠ (以便你能保持健康) and energetic. 6. The heavy rain (对……负有责任) the cancellation of the outdoor activity. 7. Many people choose to ⁠ (把他们的银行卡 和……绑定) their WeChat Pay for convenience. 8. The farmer used a stick to ⁠ (驱赶) the birds that were eating his crops. so that you can keep healthy was to blame for link their bank cards to drive away 英 语·选择性必修第一册(WY) 目 录 9. ⁠ (最后), they overcame all the difficulties and completed the project successfully. 10. The zoo has many animals, pandas ⁠ (尤其), which attract a lot of visitors. In the end in particular 英 语·选择性必修第一册(WY) 目 录 Ⅰ.阅读理解 A   To adapt to climate change, some flowers are darkening their color to protect themselves from the sun’s radiation, new research shows.   The study suggests that over the past 75 years, the ultraviolet (UV) pigments (紫外线色素) in flowers have increased in response to rising temperatures and the thinning ozone layer (臭氧层).The 英 语·选择性必修第一册(WY) 目 录 flowers won’t look any different to humans, but insects consider the higher levels of UV pigments as a darker color, which could be confusing when they try to find out colorful flowers to land on.   The UV-absorbing pigments in flowers work like sunscreen and protect sensitive cells from harmful radiation, Matthew Koski, a plant ecologist at Clemson University, says.He and his team hoped to determine if changes in pigments were a result of environmental change — and if so, what were the plants responding to? The team collected dried, pressed plants across North America, Australia and Europe.In 英 语·选择性必修第一册(WY) 目 录 total, they studied 1,238 samples from 42 different species dating back to 1941.Then, using a UV-sensitive camera, they photographed flower petals from each species.Next, they paired the photographs with the historic local temperature and ozone level data from the time the plant was picked to see how the pigment level changed over time.   The researchers found that the changes in pigments differ between species, a result of the flowers structure.Flowers with open, exposed pollen had more UV-absorbing pigments when ozone levels were low and radiation was high.But flowers with pollen surrounded by the petal responded to temperatures, not ozone levels. 英 语·选择性必修第一册(WY) 目 录   As climate change continues to intensify, these changes in flowers color can affect plant-insect interactions.When the whole flowers get darker, insects might miss the flowers entirely.“This has a negative influence on plant reproduction,” Koski says. 语篇解读:本文是一篇说明文。最新研究表明,为了适应气候变 化,一些花的颜色正在变深。 语篇解读:本文是一篇说明文。最新研究表明,为了适应气候变 化,一些花的颜色正在变深。 英 语·选择性必修第一册(WY) 目 录 1. What is the cause of flowers color changing according to the research? (  ) A. The impact of the climate crisis. B. The loss of natural habitats. C. The harm of nuclear radiation. D. The thickening of the ozone layer. 解析: 细节理解题。根据第一段可知,为了适应气候变化,一些 花朵正在加深颜色以保护自己免受太阳辐射,所以花朵颜色变化的原 因是气候危机的影响。 √ 英 语·选择性必修第一册(WY) 目 录 2. How did Koski’s team get their findings?(  ) A. By collecting photographs of flowers from different species. B. By analyzing how levels of UV pigments change over time. C. By collecting abundant samples from various species. D. By analyzing historic local temperature and ozone level data. 解析: 细节理解题。根据第三段可知,研究团队将紫外线敏感相机拍摄的花瓣照片与采摘植物时的当地历史温度和臭氧水平数据配对,分析紫外线色素水平如何随时间变化,从而得出研究结果。 √ 英 语·选择性必修第一册(WY) 目 录 3. What can we learn about the change in pigments?(  ) A. It exists in flowers with exposed pollen only. B. It responds to temperatures and sea levels. C. It remains the same regardless of species. D. It varies depending on the flowers structure. 解析: 细节理解题。根据第四段第一句可知,色素的变化因物种 而异,是花朵结构导致的,即色素变化取决于花朵的结构。 √ 英 语·选择性必修第一册(WY) 目 录 4. What is Koski’s attitude toward the change in flowers color?(  ) A. Concerned. B. Indifferent. C. Unclear. D. Optimistic. 解析: 推理判断题。根据最后一段中Koski说的话可知,Koski 认 为花朵颜色变化对植物繁殖有负面影响,说明他对花朵颜色变化持担 忧态度。 √ 英 语·选择性必修第一册(WY) 目 录 B   (2026•四川成都期中)In oceans across the globe, a tiny jellyfish (水母) species shows a remarkable death-defying ability.After reaching sexual maturity, this jellyfish can turn back into its young form and then mature again — a process similar to a butterfly turning back into a caterpillar and then changing into a butterfly again.The deep-sea creature’s life cycle could theoretically be repeated forever, earning this species, called Turritopsis dohrnii (灯塔水母), the nickname: the “immortal jellyfish”. 英 语·选择性必修第一册(WY) 目 录   Like a typical jellyfish, T. dohrnii begins its life as a free- floating larva (幼体) and matures into a branching, plant-like polyp (水螅体) .From there, multiple young jellyfish grow out of the polyp and turn into adults.However, the difference is that when an adult T. dohrnii is damaged or stressed, instead of dying, it absorbs its own arms and becomes a blob that settles to the sea floor.Over the next day and a half, this blob transforms into a new polyp, which can then form more jellyfish.Therefore, though T. dohrnii may be eaten by predators, it does not die of old age. 英 语·选择性必修第一册(WY) 目 录   A new study compared T. dohrnii to T. rubra, a related jellyfish species that undergoes normal aging.Compared to its relative, researchers found that T. dohrnii has twice as many genes that repair and protect DNA. This allows T. dohrnii to generate more restorative proteins.Researchers also found differences in several other genes, including those associated with replication and the stem cell population. These differences may be key to the jellyfish’s immortality. 英 语·选择性必修第一册(WY) 目 录   Researchers say these findings could help humans — but not in the exact same way.They believe their study could help find better answers to the many diseases associated with aging.They also hope a better understanding of these jellyfish genes might inspire regenerative medicine for humans. 语篇解读:本文是一篇说明文。文章主要介绍了灯塔水母这一特殊 的水母种类,它具有一种非凡的逆生长能力,理论上可以无限循环 其生命周期,因此被称为“不老水母”。 语篇解读:本文是一篇说明文。文章主要介绍了灯塔水母这一特殊 的水母种类,它具有一种非凡的逆生长能力,理论上可以无限循环 其生命周期,因此被称为“不老水母”。 英 语·选择性必修第一册(WY) 目 录 5. Why does the author mention a butterfly in the first paragraph?(  ) A. To explain the aging process of T. dohrnii. B. To emphasize the small size of T. dohrnii. C. To present the living habits of T. dohrnii. D. To show the special life cycle of T. dohrnii. √ 解析: 推理判断题。 根据第一段中的After reaching sexual maturity ...changing into a butterfly again.可知,作者通过 描述蝴蝶变回毛毛虫这一假设的类比,是为了展示灯塔水母特殊 的生命周期。 英 语·选择性必修第一册(WY) 目 录 6. How does T. dohrnii differ from other jellyfish species? (  ) A. It can avoid dying of old age. B. It goes through a polyp stage. C. It can transform to defend itself. D. It has very few natural enemies. 解析:细节理解题。 根据第二段中的Therefore, though T. dohrnii may be eaten by predators, it does not die of old age.可知,灯塔水母与其他水母的不同之处在于它具有避免因衰老而死亡的能力。 √ 英 语·选择性必修第一册(WY) 目 录 7. What is paragraph 3 mainly about?(  ) A. The specific findings of the new study. B. The social significance of the research. C. The detailed procedures of the research. D. The possible limitations of the new study. 解析: 段落大意题。 根据第三段对DNA修复基因、修复功能蛋白 质以及干细胞群相关基因差异的描述可知,本段主要介绍了关于灯塔 水母“永生”机制的新研究的具体发现。 √ 英 语·选择性必修第一册(WY) 目 录 8. What can be a suitable title for the text?(  ) A. Predators of the Deep: How the “Immortal Jellyfish” Survives through Various Conditions B. Unlocking Immortality: The Genetic Secrets of the Jellyfish That Reverses Aging C. From Polyp to Jellyfish: The Unique Lifecycle of a Deep-Sea Jellyfish D. Human Immortality on the Horizon? Lessons from a Jellyfish √ 英 语·选择性必修第一册(WY) 目 录 解析:  标题归纳题。 通读全文可知,文章围绕灯塔水母逆转衰老 的独特现象展开,并重点解释了其背后的基因修复秘密。故B项最适 合作文章标题。 英 语·选择性必修第一册(WY) 目 录 Ⅱ.阅读七选五   (2026•陕西榆林期中) Soilless farming, as the name implies, is a type of farming where plants are cultured and grown without the use of the soil.9.    With this method, crops can be planted almost everywhere.   Due to lacking originality, conventional farming has many processes and requires the manure (肥料) of chemical mixtures to make the soil rich in nutrients.Soilless farming has less workload and can enhance growth.10.    Their needs are met throughout life, from seeds to ripe fruit. 英 语·选择性必修第一册(WY) 目 录   In many soilless farming systems, water is recycled and reused until the plants are ready to harvest.Hence, soilless farming is an alternative to dry regions.Additionally, it reduces the physical labor and energy required from workers.11.     By following standardized steps throughout the entire production process, soilless farming can supply crops to the market every day, meeting consumers’ needs.12.    They will begin growing crops locally all year round.In this way, even seasonal produce can be harvested anytime.  英 语·选择性必修第一册(WY) 目 录   13.     The rate at which pathogens (病原体) attack the farm will be zero as a result of how the planting environment is concerned, and if the pathogen ever attacks, the infected plant will be easily separated to avoid infecting the farm as a whole.Developed countries in the world are expected to adopt this mode of farming because doing so reduces the level of food importation and increases the availability of food in the country. A. The quality of the harvested food may be controlled. B. However, soil farming requires more workload. 英 语·选择性必修第一册(WY) 目 录 C. This helps them achieve higher profits while keeping costs very low. D. After all, food imports might pollute the environment. E. Nutrients are provided to the plants, majorly in liquid form. F. Countries relying on food imports see how productive this farming method is. G. It is also a systematic technique for growing plants without soil as a rooting environment. 语篇解读:本文是一篇说明文。文章介绍了无土栽培的定义、优势 及应用前景。 语篇解读:本文是一篇说明文。文章介绍了无土栽培的定义、优势 及应用前景。 英 语·选择性必修第一册(WY) 目 录 9. G 空前提到无土栽培,顾名思义,是一种不借助土壤来培育和种 植植物的耕作方式。G项(它也是一种不将土壤作为根系环境的系统 性植物种植技术)承接上文,对无土栽培的定义作了进一步的专业解 释,衔接自然。 10. E 空前提到无土栽培工作量更少且能促进生长,空后提到植物在 整个生命周期里所需的养分都能得到满足。E项(营养物质主要以液 体形式提供给植物)解释了植物需求如何被满足,既承接了无土栽培 的种植特点,又呼应了下文的Their needs are met throughout life。 英 语·选择性必修第一册(WY) 目 录 11. C 空前讲到无土栽培减少了工人所需的体力劳动和精力,这属于 降低人力成本的优势。C项(这有助于他们在保持低成本的同时获得 更高的利润)符合语境,C项中的This指代上文提到的减少体力劳动 和精力的做法,“低成本、高利润”是该优势带来的合理结果。 12. F 空后提到他们将开始全年在本地种植作物,They应指代某 个特定群体。F项(依赖粮食进口的国家看到了这种种植方式的高 生产力)符合语境,F项中的Countries relying on food imports与 下文的They相对应,且“本地种植”正是解决“依赖进口”的有 效方式,衔接通顺。 英 语·选择性必修第一册(WY) 目 录 13. A 空后提到得益于对种植环境的把控,病原体侵袭农场的概 率将降为零。A项(收获的食品质量可以得到控制)对应了无土栽 培环境的可控性,病原体侵袭少直接保障了食品质量,与下文形 成因果关联。 英 语·选择性必修第一册(WY) 目 录 Ⅲ.应用文写作   (2026•四川南充期中)你校英文报正在举办以“Green Living: Start with Me”为主题的征文活动。请你写一篇短文参与此活动,内 容包括:   (1)你对绿色生活的理解;   (2)你将如何践行绿色生活方式。 注意:(1)写作词数应为80个左右; (2)请按如下格式作答。 英 语·选择性必修第一册(WY) 目 录 Green Living: Start with Me                                                                                                   英 语·选择性必修第一册(WY) 目 录 参考范文: Green Living: Start with Me   Green living means living in a way that is environmentally friendly and sustainable.It involves saving resources, reducing waste, and protecting our planet.I believe green living benefits the environment, health, and economy. 英 语·选择性必修第一册(WY) 目 录   To practice green living in my daily life, I will start with small steps.For example, I will use reusable bags instead of plastic ones when shopping.I will also turn off the lights and water taps when they aren’t in use to save energy and water.Moreover, I will try to walk or bike more often instead of driving, which can reduce air pollution and save money.   I hope more people will join me in practicing green living and protecting our planet. 英 语·选择性必修第一册(WY) 目 录 $

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Unit 5 Section Ⅲ Developing ideas(课件PPT)-【学霸笔记·同步精讲】2026-2027学年高中英语选择性必修第一册(外研版)
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Unit 5 Section Ⅲ Developing ideas(课件PPT)-【学霸笔记·同步精讲】2026-2027学年高中英语选择性必修第一册(外研版)
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Unit 5 Section Ⅲ Developing ideas(课件PPT)-【学霸笔记·同步精讲】2026-2027学年高中英语选择性必修第一册(外研版)
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Unit 5 Section Ⅲ Developing ideas(课件PPT)-【学霸笔记·同步精讲】2026-2027学年高中英语选择性必修第一册(外研版)
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Unit 5 Section Ⅲ Developing ideas(课件PPT)-【学霸笔记·同步精讲】2026-2027学年高中英语选择性必修第一册(外研版)
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Unit 5 Section Ⅲ Developing ideas(课件PPT)-【学霸笔记·同步精讲】2026-2027学年高中英语选择性必修第一册(外研版)
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