Unit 5 Looking into nature Understanding ideas Reading 课件 2025-2026学年外研版八年级下册英语

该初中英语课件围绕“琥珀中的自然秘密”展开，通过“Lead in”环节提问“这是什么？”“你对琥珀了解多少？”引入主题，结合树脂形成琥珀的科学解释建立背景知识，再以恐龙羽毛、古代花朵、蚂蚁新物种三个案例为支架，引导学生理解琥珀揭示自然秘密的核心内容。 其亮点在于融合语言能力（词汇学习与复述训练）、思维品质（分析琥珀案例中的科学发现，如纠正恐龙形象认知）和学习能力（读后分享阅读、博物馆等探究自然的方法）。采用表格梳理信息、对比旧认知与新发现等教学方法，助力学生提升语言运用与逻辑分析能力，也为教师提供结构化教学流程，提高课堂效率。

Unit5 Looking into nature Understanding ideas Learning objectives After learning the lesson, students will be able to 1. master the key vocabulary and understand the main idea and details of the passage. 2. read to find out the secrets in amber, understand its importance and retell the passage. 3.share ideas about other ways to learn about the secrets of nature. Lead in What's this? A piece of amber. What do you know about amber? Lead in What do you know about amber? Amber is made from the resin（树脂） of ancient trees. Small insects or other things get trapped in(被困住) the resin. Over millions of years, the resin becomes hard and turns into amber. While-reading What's the passage about? A. How amber helps scientists unlock the secrets of nature. B.How amber was formed from tree resin(树脂). C. How to make amber and use it in daily life. dinosaur How many are mentioned in this passage? The secret about the ____________(P1-2). The secret about the ______________ (P3). The secret about the ____________ (P4). Three. While-reading flower dinosaur ants While-reading While-reading The secret about the dinosaur 1 Imagine a dinosaur in an ancient forest. It is running around,looking for its next meal. With an angry cry, it opens its mouth, raises its beautiful feather-covered arms, and...  2 Wait, feathers on a dinosaur? For hundreds of years, people believed that dinosaurs looked like huge lizards. Just look at all those dinosaurs in books, films and TV shows! However, thanks to a piece of amber, scientists now know that this idea is wrong. In the amber from Southeast Asia, they found the tail of a dinosaur-with feathers. What did dianosaurs look like in people’s mind? They looked like huge lizards. huge lizards What did scientists find in the amber from Southeast Asia? They found the tail of a dianosaur with feathers. What? What secret does it tell? A.Why dianosaurs disappeared in history. B.What dinosaurs truly looked like. C.How dianosaurs lived millions of years ago. While-reading What do you think of Paragraph1? While-reading It is vivid(生动的), exciting and interesting. To draw readers’ interest, arouse their curiosity(激发他们的好奇心) and make them want to read more. What’s the purpose of Paragraph1? To make the text alive. While-reading About the flower What’s in the amber? Where was it found? What did scientists find through it? What secret does it tell? A flower. In Northern Europe. The flower grew there 35 million years ago. Life on earth has always changed. The secret about the flower About the flower What’s in the amber? A flower. Where was it found? In Northern Europe. What did scientists find through it? The flower grew there 35 million years ago. What secret does it tell? Life on earth has always changed. Retell Amber is a window on the past. A piece of amber from ________, holds __________. Through the amber, scientists found that ________ . It proves that ______________. The secret about the flower 4 Thanks to amber, more than 300 unknown species have been discovered. In a piece of amber from Africa, scientists found 13ants. Research shows that they are a completely new species.Scientists used to believe that ants came from the northern half of the earth. The discovery of this African species has changed old beliefs about the history of ants. Who knows whether this piece of amber will tell us more secrets? What did scientists find in the amber from Africa? old beliefs They found that the ants are _____________________________. a completely new species What else has the discovery brought? What’s the fact about the history of ants? Ants did not only come from ____________________________ they also lived __________. the northern half of the earth in Africa The secret about the ants The secret about the ants 4 Thanks to amber, more than 300 unknown species have been discovered. In a piece of amber from Africa, scientists found 13ants. Research shows that they are a completely new species.Scientists used to believe that ants came from the northern half of the earth. The discovery of this African species has changed old beliefs about the history of ants. Who knows whether this piece of amber will tell us more secrets? What secret does it tell? There are many _______________ for us to discover. unknown species What does the writer compare the amber to? A window on the past and a key to unlock more secrets of nature. To encourage more research to better understand nature. What is the main purpose of Paragraph5? Post-reading 1.secrets 2.Thanks to 3.(always) changed 4.35 million 5.unknown 6.ant 7.window 8.nature Ancient nature’s secrets are saved/ kept in time by ________. amber Amber is a window on the past and a key to unlock more secrets of nature. We can learn about nature’s secrets by amber . Think and share What are some other ways for you to learn about nature's secrets? exploring the outdoors I can learn about nature's secrets by_________. reading visiting museums watchting videos/films Nature is full of unknown secrets. Let’s unlock more secrets of nature with effort and curiosity. Must do: 1.Master the words and expressions in the lesson. 2.Write down what you have learnt about amber and looking into nature.. Choose to do: Search for more secrets of nature.. Homework Thank you $