Unit 6 Earth first Understanding ideas 课件-2025-2026学年高中英语外研版必修第二册

该高中英语课件围绕“地球优先”主题，聚焦环境问题与鲨鱼保护，通过视频事实导入、头脑风暴描述鲨鱼印象、图片分析环境问题，结合《大白鲨》电影场景引入主题，借助略读扫读策略、段落匹配及词汇语法注释，构建从误解到保护的认知支架。 其亮点在于融合语言能力（词汇学习、阅读策略训练、倡议写作）、思维品质（对比电影与现实鲨鱼形象，分析误解成因）和文化意识（强调自然和谐与人类责任），如通过“finning”概念解析、网络直播倡议任务，助力学生提升综合语言运用能力与批判性思维，为教师提供丰富活动设计与素养培养路径。

Unit 6　 Earth first Unit 6　 Earth first Starting out & Understanding ideas　 Activity 1 Which of the facts in the video do you find most alarming(adj.使人惊恐的;令人惊慌的)? What does the video want to tell us? Which of the facts in the video do you find most alarming? deforestation species’ extinction ocean pollution shortage of fresh water plastic pollution loss of glaciers /ˈɡlæsiə(r)/n.冰川 over 1 million animals are killed by ocean pollution each year n.森林砍伐 (尤指北极和南极的）冰冠 2. What does the video want to tell us? Activity 2 1. What environmental problem does each cartoon /picture refer to? Water pollution 水污染 deforestation 砍伐森林 air pollution global warming Which of the problem do you find most alarming? 返回导航 Unit 6　 Earth first 英语　必修　第二册　W Understanding ideas Brainstorming(头脑风暴) What’s your impression of sharks? (use adjectives to describe it) /ˈædʒɪktɪvz/ Brainstorming What’s your impression of sharks? (use adjectives to describe it) endangered dangerous terrifying powerful sharks man-eating huge interesting intelligent adj.聪明的 cute adj.可怕的 13 What else about sharks? hunted by humans What is finning? finning: a type of fishing where sharks are caught and their fins cut off. Sharks：dangerous or endangered? Prediction Activity 1 Prediction: Will sharks be dangerous or endangered? What is your opinion? Why? fin 鱼鳍 Look at the pictures and the title dangerous endangered 大白鲨 disappear surface Activity 2 Skimming (略读，找主旨) 略读，顾名思义，就是粗略地阅读。略读的目的不在于精确地理解文章，而是为了了解大致内容，比如文章的主旨大意，传达的主要信息或作者的基本观点。当我们在有限的时间内要读完大量的文字时，通常采用略读的方式。一般来说，略读的速度比普通阅读速度快3到4倍。高考阅读文章讲述主要观点之后通常会有for example来佐证，如果看懂了主要观点，那么对示例所用的时间和精力就不需要太多了。 Ⅰ. Fast reading（速读） The passage is mainly about people’ changing views on _________, explain people’s _______________ of sharks and __________ awareness of shark protection. sharks misunderstanding raise 返回导航 Unit 6　 Earth first 英语　必修　第二册　W Para.1　 A. Benchley realized his mistakes and began to fight to protect sharks. Para.2 B. Introduce the topic by describing the opening scene of the film Jaws. Para.3　 C. People have always been scared of sharks, but Jaws made things worse. Para.4　 D. More people start to protect sharks. Para.5　 E. The number of sharks around America fell quickly due to finning. 2. Please match the main idea with each paragraph. 返回导航 Unit 6　 Earth first 英语　必修　第二册　W 3. Choose the author’s purpose in writing it. (P64 3) 1) To criticise Peter Benchley’s misleading description of sharks in his book and advocate the protection of sharks. 2) To explain people’s misunderstanding of sharks and raise awareness of shark protection. 3) To inform people about sharks and recommend the film and the book to them. √ /ˈædvəkeɪt /提倡；主张 Activity 3 Scanning （扫读，带着问题找答案） 扫读/寻读 （Scanning） 又称查读。寻读是一种从大量的资料中迅速查找某一项具体事实或某一项特定信息，如人物、事件、时间、地点、数字等，而对其他无关部分略去不读的快速阅读方法。 1. Which of the following statements about the film Jaws is WRONG? A. A woman died as a result of a shark's attack. B. It was popular with huge audiences. C. It changed people's attitude to sharks as a dangerous animal. D. It won a great reputation(n.名誉;名声) in the field of film. 2. What’s the main reason for the number of large sharks fall quickly? A. Because of the climate change. B. Because of people’s killing and finning . C.Because of lacking of enough food. D.Because of the pollution of the ocean. 3.What has changed Peter Benchley's opinion about sharks? A. The horrible sight he caught when he was diving. B. People's fear of the sharks. C. The decrease(v.减少) of the sharks. D. Experts' findings on the sharks. 4. Nowadays,what is people's attitude towards protecting sharks? A.Neutral/ˈnjuːtrəl/adj.中立的. B. Indifferent(adj.漠不关心的). C. Favorable(adj.赞成的, 有利的, 赞许的). D.Disapproval(n.不赞成) 赞同 1. positive adj.肯定的, 实际的, 积极的, 确实的 2. favorable adj.赞成的, 有利的, 赞许的, 良好的 3. approval n. 赞成, 承认, 正式批准 4. enthusiasm n.狂热, 热心, 积极性 5. supportive adj.支持的，支援的 怀疑 1. suspicious adj.(～ of) 可疑的, 怀疑的 2. doubtful adj.可疑的, 不确的, 疑心的 3. question v.质疑 4. puzzling adj.使迷惑的, 使莫明其妙的 否定 1. negative adj.否定的, 消极的, 负的, 阴性的 2. disapproval n.不赞成 3. opposition n.反对 4. critical adj.批评的 5. criticism n.批评,批判 客观 (即好的坏的都说，选的可能性极大) 1. objective adj.客观的 2. neutral adj.中立的 3. unprejudiced adj.没有偏见的 Sharks：dangerous or endangered? The first paragraph 1We see a woman swimming at night in a dark sea. Suddenly, she is pulled underwater. She surfaces, cries in fear, then disappears forever. This is the opening scene from the 1975 film Jaws, showing a shark attack. It tells the story of a great white shark that attacks and kills swimmers. see sb. doing sth. 看到某人正在做某事 v.浮出水面 害怕地 v.消失 n.场景 n.攻击 我们看到一个女人夜晚在漆黑的海水里游泳。突然，她被什么东西拖到水下。她挣扎着浮出水面，发出惊恐的尖叫，然后就彻底消失了。这是1975年上映的电影《大白鲨》的开场画面，呈现了鲨鱼攻击人类的画面。电影讲述了一条大白鲨袭击并杀死游泳者的故事。 1 Jaws was a great success, attracting huge audiences and winning many awards. It strengthened people’s long­-held idea of the great white shark as a dangerous animal. n.一件成功的事 v.吸引 n.奖；奖金 v.加强；巩固 长期持有的 电影大获成功，吸引了大量观众并赢得了众多奖项。这部电影也加深了人们对大白鲨的固有印象：这是一种危险的动物。 Para.1　 A. Benchley realized his mistakes and began to fight to protect sharks. Para.2 B. Introduce the topic by describing the opening scene of the film Jaws. Para.3　 C. People have always been scared of sharks, but Jaws made things worse. Para.4　 D. More people start to protect sharks. Para.5　 E. The number of sharks around America fell quickly due to finning. 2. Please match the main idea with each paragraph. 返回导航 Unit 6　 Earth first 英语　必修　第二册　W Why is the film Jaws mentioned at the beginning of the passage？ To show how it influenced people’s attitude towards sharks. To attract readers with the impressive scene. It strengthened people’s long-held idea of the great white sharks as a dangerous animal. To introduce the topic. Jaws The second paragraph 2People have always been scared of sharks, but Jaws made things worse. It made people frightened of sharks, especially of the great white shark. Many people who saw the film started to believe that sharks were bad animals (that ate humans). be scared of sth. 害怕某物 使事情更糟糕 adj.害怕的 be frightened of sth. 害怕某物/某事 人类本就害怕鲨鱼，而电影《大白鲨》使这种情况变得更糟。让人们对鲨鱼，特别是大白鲨，心生恐惧。许多看过这部电影的人开始相信，鲨鱼是吃人的有害动物。 2 Some people stopped swimming in the sea, afraid of the horrible creature from the film. Other people started fishing for sharks, killing as many as they could. At that time, nobody cared (if sharks were killed, or how many were killed). People just wanted them killed. stop doing sth. 停止做某事 adj.害怕的 (be) afraid of 害怕某事 adj.可怕的 n.生物 有些人因为害怕遇到电影里描述的这种可怕生物再也不去海里游泳了。而另外一些人则开始无所顾忌地捕杀鲨鱼。当时，没人在意鲨鱼是否杀死，也没人在意杀了多少。人们认为鲨鱼死有余辜。 fish for捕鱼 摸索着找 Para.1　 A. Benchley realized his mistakes and began to fight to protect sharks. Para.2 B. Introduce the topic by describing the opening scene of the film Jaws. Para.3　 C. People have always been scared of sharks, but Jaws made things worse. Para.4　 D. More people start to protect sharks. Para.5　 E. The number of sharks around America fell quickly due to finning. 2. Please match the main idea with each paragraph. 返回导航 Unit 6　 Earth first 英语　必修　第二册　W The third paragraph 3After 1975, the number of large sharks around America fell quickly, and soon fell around the world. This was not only due to fear of sharks, but also finning. Finning is a type of fishing (where sharks are caught and their fins cut off). The sharks are thrown back into the sea where they die slowly and painfully. The fins are used in shark fin soup. Finning kills millions of sharks a year. ...的数量 v.减少 fall-fell-fallen 切鱼鳍 一种类型 切掉 v. catch throw-threw-thrown 数以百万计的 hundreds of 成百的 thousands of 成千的 1975年之后，在美国附近海域里，大型鲨鱼的数量迅速下降，这一趋势很快蔓延到全球。这不仅仅是因为人类对鲨鱼的恐惧，还因为采割鱼鳍。采割鱼鳍是一种捕猎活动，人们捞到鲨鱼后将其鱼鳍割下，鲨鱼被扔回海里中缓慢而痛苦地死去，割下的鱼鳍用来做鱼翅汤。每年有数百万的鲨鱼因此丧命。 Para.1　 A. Benchley realized his mistakes and began to fight to protect sharks. Para.2 B. Introduce the topic by describing the opening scene of the film Jaws. Para.3　 C. People have always been scared of sharks, but Jaws made things worse. Para.4　 D. More people start to protect sharks. Para.5　 E. The number of sharks around America fell quickly due to finning. 2. Please match the main idea with each paragraph. 返回导航 Unit 6　 Earth first 英语　必修　第二册　W Why did people kill so many sharks? Why did people do finning to the sharks? fin finning People believed sharks were bad animals and ate humans. So they killed so many sharks. People finned sharks to make shark fin soup to enjoy and make money. Finning A life A bowl Can the shark live long in the sea? 46 In movie In reality We should take action ! The fourth paragraph 4Finning would have an unexpected effect upon Peter Benchley, the man who wrote the book the film Jaws was based on. In 1980, Benchley was diving when he came across an awful sight. It was an area (where fishermen were finning, and the sea floor was covered with dead sharks). Benchley saw sharks being killed and this caused a deep change in him. 对……有影响 have/make an impact on 以…为基础 偶然遇到 adj.可怕的 海床 be covered with 被……覆盖 鱼鳍采割活动对《大白鲨》电影的原著作者——彼得·本奇利产生了意想不到的影响。1980年，本奇利在潜水时看到了可怕的一幕：渔民们正在这片海域采割鲨鱼的鱼鳍，海底遍布了死去的鲨鱼。本奇利亲眼目睹鲨鱼被杀，这引起了他内心的深刻转变。 He came to see people as a danger to sharks, rather than the other way round. From that day on, he fought to protect sharks. He admitted that his book was wrong about sharks’ behaviour. “Sharks don’t target humans,” he said. Experts have proved (that sharks do not see people as food, and they attack us by mistake). Only around six people are killed by sharks every year. 把……看作 regard...as... consider...as... come to do 明白，了解 反过来 而不是 fight to do 争取做某事 承认 专家 他意识到人类才是鲨鱼的威胁，而鲨鱼并非人类的敌人。从那天起，他开始为保护鲨鱼而努力。他承认自己书中关于鲨鱼行为的描述是不正确的。“鲨鱼并不以人类为攻击目标。”他说。专家们也已经证明了鲨鱼不会将人类视为食物，它们对人类的攻击都是无意的。每年因鲨鱼攻击致死的人数在六人左右。 see…as 看作为;视…为… 指由错误、疏忽或无意中做了某错事 Para.1　 A. Benchley realized his mistakes and began to fight to protect sharks. Para.2 B. Introduce the topic by describing the opening scene of the film Jaws. Para.3　 C. People have always been scared of sharks, but Jaws made things worse. Para.4　 D. More people start to protect sharks. Para.5　 E. The number of sharks around America fell quickly due to finning. 2. Please match the main idea with each paragraph. 返回导航 Unit 6　 Earth first 英语　必修　第二册　W The fifth paragraph 5Fortunately, not everyone (who watched the film Jaws) became afraid of sharks—some became interested in understanding them. Today, as we learn more about sharks, more people than ever want to protect them from extinction. 灭绝 幸运的是，并非每个看过《大白鲨》这部电影的人都变得害怕鲨鱼——有些人变得更有兴趣去了解它们。如今，随着我们对鲨鱼了解的加深，越来越多的人愿意去保护它们免遭灭绝。 Para.1　 A. Benchley realized his mistakes and began to fight to protect sharks. Para.2 B. Introduce the topic by describing the opening scene of the film Jaws. Para.3　 C. People have always been scared of sharks, but Jaws made things worse. Para.4　 D. More people start to protect sharks. Para.5　 E. The number of sharks around America fell quickly due to finning. 2. Please match the main idea with each paragraph. 返回导航 Unit 6　 Earth first 英语　必修　第二册　W Sharks: Dangerous or Endangerd? Para _________ dangerous. Para ___ _____________. Para ____ More people want to _________________. 1 and 2 3 and 4 endangerd protect sharks from extinction Organize the structure of the passage 5 Read for structure Problem Analyze Conclusion How does people’s attitude towards sharks change? be more frightened want to protect be scared learn more,understand Ⅰ. Fast reading（速读） The passage is mainly about people’ changing views on _________, explain people’s _______________ of sharks and __________ awareness of shark protection. sharks misunderstanding raise 返回导航 Unit 6　 Earth first 英语　必修　第二册　W If environmental problems are not solved, we will see the scene of the picture and such. shark 1. Read the passage again and complete the chart. 1. as dangerous animals 2. sharks were bad animals that ate humans 3. swimming in the sea 4. fish for sharks 5. fear of sharks and finning 6. was wrong about sharks’ behaviour 7. to protect 8. sharks do not see people as food 9. understanding sharks 10. protect sharks from extinction Dicussion! 返回导航 Unit 6　 Earth first 英语　必修　第二册　W Activity 4 研读——能力升华　接轨高考 The movie, Jaws filmed in 1975, mainly tells a story that a shark attacks and kills 1._________ (swim). The film was 2.________great success, but it 3._________(strength) people’s long­held idea of the great white shark as a dangerous animal. As a result, people have always been 4.________(scare) of sharks.To make the matter worse, many people wanted them 5._________ (kill). After 1975, the number of large sharks fell quickly due 6. _____fear of sharks and finning. Finning had an unexpected effect on Peter Benchley 7.______ wrote the book the film Jaws was based on. He was aware of his mistake and fought 8.________ (protect) sharks. Experts have also proved that sharks don’t see people as food and they attack us by mistake. 9.__________ (fortunate)，today，with people learning more about sharks, they start to protect them from 10._________ (extinct)． Step 3　Post reading swimmers a strengthened scared killed to who to protect Fortunately extinction 返回导航 Unit 6　 Earth first 英语　必修　第二册　W Beyond the text List some other reasons for the decrease of sharks. Think & share 1. ocean pollution 2. climate change 3. volcanic eruption 4. ... Useful expressions for giving reasons: • One of the reasons why sharks are endangered is that ... • Another reason for this is ... Discuss & share Share some other measures to protect them. People? The government ? Experts ? say no to shark fin soup raise our awareness of protecting them stop polluting the ocean Do not engage in the illegal trade in wildlife Protect the habitat of wild animals. pass laws to stop illegal killing establish reserves do more research and offer more findings about sharks How can we protect sharks? Suppose our school hold an online live public welfare activity(网络直播公益活动) themed “Keep sharks in the sea” . You are invited to deliver an online live initiative (网络直播倡议) about shark protection. Read for use You may organize it like this: Dear netizens, I'm making this online speech to raise your awareness of shark protection. It is high time that we should start from ourselves and take action immediately. Joint efforts will change the situation！ Make an oral initiative to protect sharks. (Use what we have learned today.) An online live initiative about shark protection (保护鲨鱼网络直播倡议) situation, reasons, measures Look dangerous but in fact endangered pangolin（穿山甲） Chinese alligator (扬子鳄) Snow Leopard（雪豹） South China Tiger (华南虎) We should start to protect wild animals from now on. Only when we protect the wildlife can we live in harmony with nature. Please remember no matter what we do, the earth comes first. Think about how to raise awareness of shark protection. 04 Post-reading Thank you. 必修第二册Unit6 Understanding ideas更多听力请关注“高老师学习社”微信公众号 null 218475.55 Lavf57.41.100 Lavf58.46.101 $