Unit 5 Power of Ideas Section B 2a～2c & Project 课件 2026-2027学年人教版英语九年级上册

Power of Ideas Section B 2a~2c & Project Unit 5 英语人教版九年级上册  Learning objectives 通过本课时的学习，学生能够： 1. 掌握本课时词汇、词形转换和重点短语，读懂便利贴发明的语篇； 2. 小组合作，依据三项发明要求构思创意，完成发明海报，参与课堂展示与投票活动； 3. 会用被动语态简单谈论发明，感受创新价值，树立创新意识。 重点 重点 Look and answer Look at the pictures and answer the questions. What are they? They are sticky notes. Do you know who invented them? Spencer Silver and Arthur Fry. Do you know how they were invented? They were invented by accident. velcro 魔术贴 ice lolly 冰棒 potato chips 薯片 computer camera television ... Talk and answer Talk about the question and answer it. What other interesting inventions do you know? Look and complete Look at the pictures and complete the sentences. invention n. 发明物 (物) inventor n. 发明者 (人) invent v. 发明 Edison was a great ___________. He was an ___________ man. He _________ the light bulb, a world-famous __________. Edison light bulb inventor invented invention inventive adj. 善于发明的 inventive Think and complete Complete the table with different forms of the words. You can add more. Noun Verb Adjective collect creative invent product collection collective (集体的) creation create invention inventive produce productive compete competition competitive Read and choose Read and choose the correct word to complete each sentence. 1. The use of modern medicine has helped control / spread many dangerous diseases. 2. News could travel much more rapidly / slowly with inventions like the radio and the television. 3. Fibre made from oil provides a(n) cheap / expensive solution to the problem that many people cannot afford to buy enough clothes. 4. A film was invented / produced by a film company to tell us about what robots could do for people’s lives in the future. 5. In January 1911, Feng Ru carried out a secret / public test flight in Oakland City. He showed the world what Chinese people could achieve. rapidly /ˈræpɪdli/ adv. 迅速地；快速地 afford /əˈfɔːd/ v. 买得起；能做 company /ˈkʌmpəni/ n. 公司；剧团 Did you know that an accident led to the invention of sticky notes? In 1968, a scientist named Spencer Silver was trying to make a strong glue. _______________ , he produced a glue that was really weak. It could stick things, but it could be removed very easily. The glue was interesting, but no one could find a use for it. Read and complete Read and complete the passage with the correct forms of the phrases in the box. piece of stand up result in to sb’s surprise To his surprise sticky /ˈstɪki/ adj. 黏（性）的；闷热的 piece of stand up result in to sb’s surprise Then, in 1974, a man named Arthur Fry was trying to mark the pages in a songbook using small _________ paper. However, whenever he _____________ to sing, the pieces fell to the floor. Then he remembered Silver’s glue. With the glue, the paper stayed in the songbook, but it could later be removed. Fry’s idea ____________ the production of sticky notes of many sizes and colours. They gradually became popular and now are widely used all over the world. pieces of stood up resulted in songbook /ˈsɒŋbʊk/ n. 歌曲集 production /prəˈdʌkʃn/ n. 生产；制作 gradually /ˈɡrædʒuəli/ adv. 逐渐地；逐步地 widely /ˈwaɪdli/ adv. 广泛地；普遍地 Read and complete Read and complete the passage with the correct forms of the phrases in the box. Read and answer Read the passage again and answer the questions. 1. How did Spencer Silver make the weak glue? 2. What was the problem when Arthur Fry marked his songbook with small pieces of paper? 3. Why could the paper stay in the songbook after using Silver’s glue? He made it by accident when he tried to create strong glue. The paper fell to the floor when he stood up to sing. Because the glue could stick things and be removed easily. 4. How can we turn an invention idea into reality? Sometimes an accident gives people new ideas. People think of ways to use the new thing. Then they produce it and make it popular. Read and choose Read the school notice. Choose one area you want to make improvements in. Inventions Needed Do you have any ideas about what could make the world a better place? Share them in the school’s invention exhibition! We are looking for inventions in the following areas: ● green technology ● health ● farming ● natural disasters ● education ● taking care of elderly people Your invention should meet the following requirements: ● inexpensive ● easy to operate ● beneficial to people and society If you have an invention like this, apply now! Work in groups. Discuss what inventions could help in your chosen area. Let’s discuss Areas：● green technology ● health ● farming ● natural disasters ● education ● taking care of elderly people Requirements: ● inexpensive ● easy to operate ● beneficial to people and society Work in groups. Discuss what inventions could help in your chosen area. Let’s discuss I choose the area of green technology. I want to invent a school garden robot. It is used to water plants and find sick plants. I choose the area of health. I want to invent a smart eye‑protecting desk lamp. It is used to remind students to rest their eyes. I choose the area of education. I want to invent a smart reading bookmark. It is used to remind students of reading time. Make a poster about your invention. Think and make The poster should include: ● the name of the invention ● a picture of it ● what it is made of / from ● what it is used for ● what effect it has on people’s lives Think about how to introduce your invention and complete the sentences. Think and complete The poster ● the name of the invention ● a picture of it ● what it is made of / from ● what it is used for ● what effect it has on people’s lives This is our invention: ______. It is made of ______. It is used for ______. It is inexpensive and easy to operate. It helps ______. Present your poster in the exhibition. Think and present This is our invention: ____________________. It is made of ___________________________ _____________________________. It is used for ___________________________ _______________________________. It is inexpensive and easy to operate. It helps __________________________________. a school garden robot recycled plastic, metal sensors and a small battery. watering plants and finding sick plants students learn about plants and saves water Vote for your favourite poster. Look and vote Think and answer 1. Which invention and inventor in this unit impressed you the most, and why? 2. How can inventions change people’s lives? I like sticky notes best. They were invented by Spencer Silver and Arthur Fry. They are very useful and convenient for us to mark important information. Inventions make our lives easier and more convenient. They help us save time and solve many problems in daily life. Think and answer the questions. 3. Can you use the passive voice to talk about inventions? 4. How do inventors make an idea come true? Yes. For example, sticky notes were invented by accident. They are used to mark pages. Think and answer the questions. Think and answer They observe life, have new ideas, do lots of tests, and keep trying until they succeed. Read and learn Creativity is seeing what others see and thinking what no one else has ever thought. Exercise 1. The world is ________ (rapid) changing because of new inventions. 2. This kind of robot is ________ (wide) used in many factories. 3. He can’t ________ (afford) such an expensive new‑style machine. 4. The ___________ (produce) of this new invention takes lots of time. 5. The glue is very ________ (stick). Don’t touch your clothes. 6. ___________ (gradual), people began to know about this great invention. 7. My father works in a high‑tech ________ (company). Fill in the blanks with the correct form of the given words. rapidly widely afford production sticky Gradually company Summary make an invention poster, give a short presentation using the passive voice and do self‑reflection about inventions. master word‑formation and learn the story of sticky notes. 3 1 After learning this lesson, I can 2 cooperate in groups to come up with my own invention idea according to the three requirements. Homework 1. Tell the invention story of sticky notes in your own words to your friends. 2. Search for information online to improve your invention. Unit 5 Thank you! $