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

该初中英语课件围绕“琥珀揭示自然秘密”核心，以恐龙化石提问导入，通过图片引导学生思考“琥珀中的生物”，搭建从已知化石到未知琥珀的学习支架，衔接前后知识脉络。 其亮点在于通过While-reading的段落细节阅读（如恐龙尾巴羽毛、北欧花朵、非洲蚂蚁）和表格填空，培养语言能力中的信息提取；结合指代题、推断题提升思维品质，Post-reading的Retell活动与分层Homework发展学习能力。学生能在探究中提升语言运用与思维，教师可高效落实教学目标。

Looking into nature Unit5 Understanding ideas feather dinosaur 1. What are they? 2. Where can you see them? 3. Why do people study them? They are dinosaur fossils. / ˈfɒs(ə)ls / In the museum. To learn more about dinosaurs and the past. What other things can tell us about the past? Look at the pictures and answer. (化石) Lead in Lead in Pre-reading While-reading Post-reading Homework Amber is about things in the____(past,future). It tells us ______________ 1. What are they? 2. What can you see in them? amber I can see an inset and some feathers They are two pieces of amber how things change over time. past Lead in Pre-reading While-reading Post-reading Homework Look at the title and pictures and predict. What does “ caught in time” mean? Things from long long ago are preserved(保存). 被时间封存的秘密 What is the passage about? A. How amber helps scientists unlock the secrets of nature. B. How to make amber and use it in daily life. C. How amber came into being. Lead in Pre-reading While-reading Post-reading Homework Read for gist Read the passage quickly and answer the questions. The secret about____________ The secret about____________ The secret about____________ the dinosaurs the flower the ants How many secrets are mentioned in the passage? What are they? Three. Amber is the key to unlock more secrets Lead in Pre-reading While-reading Post-reading Homework Read para1-2 and fill in the blanks. 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. 羽毛覆盖的 巨蜥蜴 多亏琥珀化石 What’s in the amber? There is________ Where was it found? It was found______ What did scientists find through it? They found that_______ What secrets does it tell? It tells us_________ a dinosaur tail with feathers. in Southeast Asia. dinosaurs had feathers. what dinosaurs looked like. Read for details 四处奔跑 突然怒嚎一声 高举 数百年来 Lead in Pre-reading While-reading Post-reading Homework Read for details Read para1-2 and choose. 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. this idea What does “ this idea” in paragraph 2 refer to? A. The idea that dinosaurs lived in ancient forests alone. B. The idea that dinosaurs looked like huge lizards without feathers. C. The idea that dinosaurs could fly with their feather-covered arms. Lead in Pre-reading While-reading Post-reading Homework Read for details Read para3 and fill in the blanks. 3 These beautiful golden stones quietly keep pieces of the past. They can tell us whether dinosaurs had feathers, but that's not all. They also help us understand that life on earth has always changed. A piece of amber from Northern Europe, for example, holds a flower. This species no longer grows in this area. But the find proves that it did 35 million years ago. In the future, amber may also help us discover if other species have changed over time. What’s in the amber? There is________ Where was it found? It was found______ What did scientists find through it? They found that___ What secrets does it tell? It tells us_________ a flower. in Northern Europe. the flower grew there 35 million years ago. life on earth has always changed. These beautiful golden stones quietly keep pieces of the past. They can tell us whether dinosaurs had feathers, but that's not all. They also help us understand that life on earth has always changed. A piece of amber from Northern Europe, for example, holds a flower. This species no longer grows in this area. But the find proves that it did 35 million years ago. In the future, amber may also help us discover if other species have changed over time. Take notes: 这些美丽的金黄色琥珀石默默地保存着过去的片段。 是否 不仅仅如此 在地球上 北欧 保存一朵花 不再 在这个地区 发现证实 grew in this area. 随时间推移 Lead in Pre-reading While-reading Post-reading Homework Read for details Read para4 and fill in the blanks. 4 Thanks to amber, more than 300 unknown species have been discovered. In a piece of amber from Africa, scientists found 13 ants. 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’s in the amber? There is________ Where was it found? It was found______ What did scientists find through it? They found that___ What secrets does it tell? It tells us_________ 13 ants. in Africa. The ants are a completely new species. Ants did not only come from the northern half of the earth; they also lived in Africa. there are many unknown species for us to discover. Lead in Pre-reading While-reading Post-reading Homework Read for details Read para5 and answer the questions. 5 As a window on the past, amber has been much studied. However, it's still not fully understood. We should put more effort into research. Then we can use this key to unlock more secrets of nature. What does the writer compare (把...比作）the amber to? 揭秘更多大自然的秘密 It means there is still much to explore and discover,so we should put more effort into research. What can we infer(推断） from these two sentences? A window on the past and a key to unlock more secrets of nature. 4 Thanks to amber, more than 300 unknown species have been discovered. In a piece of amber from Africa, scientists found 13 ants. 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? 5 As a window on the past, amber has been much studied. However, it's still not fully understood. We should put more effort into research. Then we can use this key to unlock more secrets of nature. Take notes: 多亏 一个完全新物种 过去经常 北半球 改变历史认知 作为窥探远古世界的窗口 然而奥秘仍未完全破解 把更多的精力放在研究上 用这把钥匙揭开更多大自然的秘密 300多种未知物种 Amber shows us what dinosaurs looked like. life on earth has always changed. a window on the past a key to unlock more secrets of nature there are many unknown species for us to discover. A/B/C层 What does the amber show to us according to the passage? Lead in Pre-reading While-reading Post-reading Homework Read the passage quickly and answer the questions. Where are you most likely to read this passage? A. in a popular science magazine about findings in nature B. in a newspaper report on exhibitions about dinosaurs C. in a sci-fi book （科幻小说）about travelling 160 million years into the past P70 最有可能 eksɪˈbɪʃn/：n.展览；展出 science fiction Lead in Pre-reading While-reading Post-reading Homework Complete the diagram with the words and expressions from the passage. 1. secrets 2. Thanks to 3. (always) changed 4. 35 million 5. unknown 7. window 6. ant 8. nature First Second Third We should put more effort into research. Think and share. Paragraph 1 is _______________. The writer begins like this to_______ _______________________________________ Post-reading We can learn about nature’s secrets by __________________________ _____________________________ _____________________________ interesting and exciting draw readers’ interest and make them want to read more. reading, visiting museums, exploring the outdoors, doing research or doing experiments. 3 What do you think of studying amber? Why?(please give two reasons) Studying amber is ___________________________ First ,________________________________ ________________________________________ Second, ____________________________________ _______________________________________ very valuable and meaningful. it is a window on the past and can tell us many secrets about ancient life. it can help us discover new species and understand how life on earth has changed over time. ancient species looked like? dinosaurs had feathers life on earth has change over time a species of flower grew in Northern Europe 35 million new species Thanks to a amber, more than 300 unkown species a new species of ants in a piece of amber on the past unlock more secrets of nature 1. a window on the past 了解过去的窗口 2. key secrets of nature 自然的关键奥秘 3. look like 看起来像 4.thanks to 多亏；由于 5.change old beliefs about 改变对……的旧认知 6. put effort into research 投入精力研究 7. unlock more secrets of nature 揭开更多自然的秘密 8.caught in time 被时间定格 9.used to do sth 过去经常做某事 10.no longger/ not...any longger 不再 重点短语： Basic (基础) Write a short passage about how amber helps scientists unlock the secrets of nature. Search for a discovery in nature exploration. Focus on: what the discovery is, who made it and what’s amazing about it. Improving(提升) Extend (拓展) Tell your friends about how amber helps scientists unlock the secrets of nature. 22 $