Unit 5：Starting out & Understanding ideas 课件 -2025-2026学年外研版英语八年级下册

Unit 5 Looking into nature Starting out & Understanding ideas (文本解读) 册 次：八年级下册 学 科：英语（外研社版） 1 What can you see in the picture? A man is holding a flashlight in a desert at night. I can also see countless stars in the sky. What do you think the man is doing? Maybe he is watching the stars. What does the picture make you feel? A/B/C层 Look and say. What are you going to learn in this unit? discoveries in nature unsolved secrets of nature spirit of nature exploration A/B/C层 3 Look at the pictures and answer the questions. 1. What do you know about these people? Li Shizhen was a famous doctor in the Ming Dynasty. He wrote Bencao Gangmu, a classic book about traditional Chinese medicine. Charles Darwin was a famous British biologist. He came up with the theory of evolution and explained how life changes throughout history. Wang Zhenyi was a well-known female scientist in the Qing Dynasty. She studied maths and astronomy, and she made important contributions. A层 Look at the pictures and answer the questions. 2. What do they have in common? They all studied nature. They taught other people about nature, too. A层 B/C层 came up with the theory of evolution made contributions in maths and astronomy Look at the pictures and match. a famous British biologist a famous doctor in the Ming Dynasty a well-known female scientist in the Qing Dynasty wrote Bencao Gangmu 6 What do they have in common? They all studied nature. They taught other people about nature, too. Think and answer. B/C层 7 Watch the video and fill in the form. A/B层 What secrets of nature are mentioned in the video? ocean space human beings What lives in the deepest parts of the ocean? Is there life among the stars? Why do we sleep? 8 ocean space human beings Watch the video and complete. What secrets of nature are mentioned in the video? What lives in the ________ parts of the ocean? Is there _____ among the stars? Why do we _______? C层 deepest life sleep 9 A/B/C层 Answer the questions. ocean space human beings ... 10 A/B/C层 Look and say. 1. What is this? A piece of amber. 2. Is amber about things in the past or things in the future? It is about things in the past. It can tell us how things have changed over time. What is the passage about? Look and guess. A层 What is the passage about? Skim and check. The passage is about how amber helps scientists unlock the secrets of nature. It serves as a window on the past and leads to important discoveries. It also shows how life has changed over time, offering a key to understanding the history of species. A层 13 What is the passage about? Look and guess. 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. B/C层 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. Skim and check. √ B/C层 Scan and answer. How many secrets are mentioned in the passage? What are they? Three. A/B/C层 The secret about the dinosaur The secret about the flower The secret about the ants Read Paragraphs 1–4 and fill in the form. About the dinosaur About the flower About the ants What’s in the amber? Where was it found? What did scientists find through it? What secrets does it tell? A层 A dinosaur tail with feathers. In Southeast Asia. Dinosaurs had feathers. What dinosaurs looked like. A flower. In Northern Europe. The flower grew there 35 million years ago. Life on earth has always changed. 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. About the dinosaur What’s in the amber? Where was it found? What did scientists find through it? What secrets does it tell? B/C层 A dinosaur tail with feathers. In Southeast Asia. Dinosaurs had feathers. What dinosaurs looked like. Read Paragraphs 1–4 and fill in the form. About the flower What’s in the amber? Where was it found? What did scientists find through it? What secrets does it tell? A flower. In Northern Europe. The flower grew there 35 million years ago. Life on earth has always changed. B/C层 Read Paragraphs 1–4 and fill in the form. About the ants What’s in the amber? Where was it found? What did scientists find through it? What secrets does it tell? 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. B/C层 Read Paragraphs 1–4 and fill in the form. Read Paragraph 5 and answer. What does the writer compare amber to? A window on the past and a key to unlock more secrets of nature. 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 √ Choose where you are most likely to read this passage. A层 Option a. In a popular science magazine, we can read about real scientific discoveries in nature. This passage talks about amber and what scientists have discovered, so it is a good match. Option b. A newspaper report is usually about events, for example an exhibition. But this passage is not about an event. It is about scientific facts, so this is not correct. Option c. A sci-fi book tells imaginary (想象的) stories, like travelling into the past. But this passage is not a story. It gives real facts, so this is also not correct. Why do you choose this option? √ Choose where you are most likely to read this passage. B/C层 Complete the diagram with the words and expressions from the passage. 1. secrets 2. Thanks to 3. (always) changed 4. 35 million / thirty-five million 5. unknown 6. ant 7. window 8. nature A/B层 Complete the diagram with the words and expressions from the passage. 1. secrets 2. Thanks to C层 Complete the diagram with the words and expressions from the passage. 1. secrets 2. Thanks to 3. (always) changed 4. 35 million / thirty-five million C层 Complete the diagram with the words and expressions from the passage. 1. secrets 2. Thanks to 3. (always) changed 4. 35 million / thirty-five million 5. unknown 6. ant 7. window 8. nature C层 Retell the passage. about the dinosaur about the flower about the ants A层 a window on the past a key to unlock more secrets of nature Retell the passage. 1. secrets 2. Thanks to 3. (always) changed 4. 35 million / thirty-five million 5. unknown 6. ant 7. window 8. nature B/C层 A/B/C层 Think and share. Paragraph 1 is exciting and interesting. The writer begins like this to draw readers’ interest and make them want to read more. A/B/C层 Think and share. We can learn about nature’s secrets by reading, visiting museums, exploring the outdoors, doing research or doing experiments. 1. Write a short passage about how amber helps scientists unlock the secrets of nature. 2. Search for a discovery in nature exploration. Focus on: what the discovery is, who made it and what’s amazing about it. Homework A层 32 Tell your friends about how amber helps scientists unlock the secrets of nature. Homework B/C层 33 谢谢观看 Blues 170880.0 $