Unit 3 第1课时 Starting out & Understanding ideas(讲解课件)-【优翼·学练优】2026-2027学年八年级英语上册同步备课（外研版·新教材）

该初中英语课件围绕“发明”主题，核心知识点包括日常发明及其影响、Easton的假肢发明过程。课堂导入通过图片讨论（灯泡与梯子象征创意与努力）、视频观看（古今生活差异）、具体发明案例分析（司南、轮子等），搭建从已知到未知的学习支架，引导学生逐步深入主题。 其亮点在于融合语言能力、思维品质与文化意识的培养。通过Easton发明故事的阅读、事件排序、图表填空等任务，锻炼学生信息梳理与分析推断能力，思考分享环节引导对比Jenny生活变化，培养问题解决思维与同理心。语言点结合语境讲解，任务型活动丰富，助力学生提升语言运用能力，也为教师提供清晰教学路径，提高课堂效率。

Life then and now, life has changed a lot since ancient times. Let's take a look at two families. What is daily life like for them? Life in ancient times is difficult. People live in the wild. When the sun rises, they get up. They only have simple clothes. Modern people are luckier. They live in houses and have clocks to tell the time. They also have a lots of closed to choose from. The ancient family has to work very hard for their food. The mother and children pick fruit from trees, and the father hunts for meat. Things are much more convenient for the modern family. They buy food from the market and cook with gas or electricity. The way people travel is also very different. The ancient family has to go on front for the modern family. They can ride a bicycle, take the bus, a driver, a car, or even fly. Oh, it's time to go to bed for the ancient family. The father has to stand guard. There's a small fire to keep them warm. The modern family just need to turn on the heater, turn off the lights and lock the door. Good night families. A helping hand eastern russia pal, a fourteen year old student, stood beside his work at a science fair. IT was a robotic ARM. He built IT out of plastic blocks and fishing line. Hello, said the girl with an artificial ARM as SHE shook hands with eastern's work. This was the first time eastern met Jenny, a girl with a special condition. SHE was born without an ARM. Her artificial ARM was just a simple hook, but IT cost eighty thousand dollars. What's worse, children like her grow quickly and need new arms all the time. IT blew me away. I built my ARM for only three hundred dollars. Thought eastern, I must lend a hand to people like her. After the fair eastern room became a lab, he stayed there all day. He always tried to improve his work for his sixtieth birthday. Eastern got a three d printer, and with IT he invented an artificial ARM. IT was able to move with brain signals of the user, but IT wasn't good enough yet. The ARM weight, three point six kilograms. IT was too heavy for a child. Eastern kept working on IT. He enjoyed fixing problems one after another, and finally he hit on success at age twenty three. His design only weight not point five kilograms, and cost around five hundred dollars. Eastern invention has helped many children. He didn't want to make money from IT. He decided to post his design online for free. People can download the design and make an artificial ARM with their own three d printers. What a helping hand. Unit 3 Make it happen! Starting out & Understanding ideas Learning Objectives In this lesson, you will: 1.talk about inventions in our daily life. 2.learn about the process of Easton’s invention. 3.tell what you can learn from Easton. Look at the picture and discuss the following questions. Look and Say What can you see in the picture? What do these things stand for? What does the picture mean to you? I can see a ladder and a light bulb. And a man is sitting on the top of the bulb and working on his laptop. The bulb stands for new ideas and the ladder means the effort and steps. It means that with hard work (climbing the ladder), we can make our bright ideas (the light bulb) shine. Watch the video and answer the questions. 1 What do you know about the differences between the lives of ancient people and ours? 2 What caused these differences? Starting out Look at the pictures and answer the questions. 1 What are these inventions? 2 How have they changed our lives? Si Nan / Ancient Chinese Compass wheel computer smart phone Si Nan / Ancient Chinese Compass It helped people find directions easily, making long-distance trips like exploring new lands or trading safer. wheel It made moving things and traveling faster and easier. Cars, bikes—all use wheels to help us go to places or carry loads. computer smart phone It lets us work quickly, get information fast, and connect with others easily. We can study, play, and chat online, saving time and opening new ways to learn/have fun. It puts everything in our hands—calls, messages, games, and maps. We can talk to anyone, anywhere, and do tasks (like paying bills) in seconds. Understanding ideas Look at the word cloud and predict what the passage is about. design artificial arm invent improve helping hand The passage is probably about the artificial arm, including how it is designed, invented, and improved to serve as a “helping hand” . Read the passage and check your answer. 1 Easton LaChappelle, a 14-year-old student, stood beside his work at a science fair. It was a robotic arm. He built it out of plastic blocks and fishing line. 2 “Hello,” said a girl with an artificial arm, as she shook hands with Easton's work. 3 This was the first time Easton met Jenny, a girl with a special condition. She was born without an arm. Her artificial arm was just a simple hook, but it cost $80,000. What's worse, children like her grow quickly and need new arms all the time. 科学展览会 机械臂 用……（材料） adj. 人造的 n. 挂钩 4 "It blew me away! I built my arm for only $300," thought Easton. "I must lend a hand to people like her." 5 After the fair, Easton's room became a lab. He stayed there all day. He always tried to improve his work. For his 16th birthday, Easton got a 3-D printer. And with it, he invented an artificial arm. It was able to move with brain signals of the user. But it wasn't good enough yet: the arm weighed 3.6 kilograms. It was too heavy for a child. 帮忙；伸出援手 使某人大为惊讶 3D打印机 大脑信号 重达3.6千克 6 Easton kept working on it. He enjoyed fixing problems one after another. And finally he hit on success at age 23. His design only weighed 0.5 kilograms and cost around $500! 7 Easton's invention has helped many children. He didn't want to make money from it. He decided to post his design online... for free! People can download the design and make an artificial arm with their own 3-D printers! 8 What a helping hand! 解决问题 突然获得成功 v. 下载 Order the following events in the passage. ______ Easton made a robotic arm with plastic blocks and fishing line. ______ Easton allowed people to use his design for free. ______ Easton and Jenny met at a science fair. ______ Easton made an artificial arm with a 3-D printer. 1 4 2 3 Complete the chart with the words and expressions from the passage. How did Easton come up with the idea? Where: At a(n) 1___________ Who: Jenny, a girl born 2_____________ Problem to solve: Jenny's artificial arm cost $80,000. But children like her 3___________, so they always need new arms. science fair without an arm grow quickly What are Easton’s inventions? Age 14: A robotic arm. It was made from plastic blocks and 4___________ Age 16: An artificial arm. It could 5___________with brain signals, but weighed 3.6 kilograms. Age 23: Another artificial arm. It 6___________ just 0.5 kilograms and 7___________around $500. fishing line move weighed cost What did Easton do with his invention? He decided to post his 8___________online for free. People could make an artificial arm with their own 3-D printers. design Think and share 1 How would Jenny's life change with Easton's invention? 2 What can you learn from Easton? Learning to think for question 1 To understand the influence of something, you can compare the situation before and after the use of it. 1 How would Jenny's life change with Easton's invention? Since the design is free online, she could easily replace it as she grows, improving the comfort and quality of her life. With Easton's invention, Jenny could get a much lighter (only 0.5 kg) and more affordable (around $500) artificial arm that moves with brain signals. 2 What can you learn from Easton? Problem-solving —He enjoyed fixing problems step by step until he succeeded. Creativity and perseverance(毅力) —He kept improving his invention despite challenges. Compassion(同情) —He was inspired to help others after meeting Jenny. Selflessness —He shared his design for free instead of seeking profit. Language Points 1. Easton LaChappelle, a 14-year-old student, stood beside his work at a science fair. fair 在句中作名词，意为“展览会”。 例如: book fair 书展 trade fair 贸易博览会 There's a farmers' fair in the town every Saturday. （镇上每周六有农贸市场。） fair还可作形容词，意为“公平的；公正的；合理的” e.g. It's not fair that he gets more money for the same work. （同样的工作他拿更多钱，这不公平。） That's a fair price for this quality. （就这个质量而言，价格合理。） 2. He built it out of plastic blocks and fishing line. 句中out of 意为“由……制成，用……做成”。 例如: a toy boat carved out of wood 一只木头雕成的玩具小船 The necklace is made out of gold. 这条项链是金制的。 3. What's worse, children like her grow quickly and need new arms all the time. what's worse意为“更糟糕的是”，用来引出一个更加糟糕或严重的情况，通常用来加重语气，强调比较。例如: I forgot my wallet at home, and what's worse, my phone is out of power.（我把钱包忘在家里了，更糟糕的是，我的手机没电了。） It's raining, and what's worse, I left my umbrella at home. （天下起了雨，更糟糕的是，我把伞忘在家里了。） blow sb. away意为“使某人大为惊讶”。例如: The film was so good that it just blew me away. （电影太棒了,简直让我震惊。） Her talent for painting really blows me away. （她的绘画天赋真的让我震撼。） 4. “It blew me away! I built my arm for only $300," thought Easton. (1)本句是感叹句句型:what a(n) (+形容词)+单数名词! 例如: What a nice dress!多漂亮的连衣裙啊! What a surprise! 真是没料到的事! (2) a helping hand意为“援手，帮助"。例如: He’s been giving me a helping hand with the children. （他一直在帮我照顾孩子。） I need a helping hand with my housework. （我需要人帮我完成家务。） 5. 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