Unit 3 Lesson1 （课件）英语新教材北师大版九年级下册

（北师大版）九年级 下 Unit 3 Technology and inventions Lesson 1 Inventions That Changed the World Lead in 01 Pre-reading 02 While-reading 03 04 05 06 07 08 Post-reading Focus on Language Express yourself Homework Grammar Contents 掌握文学分类词汇：掌握本课核心词汇与短语（at an unbelievable speed, make it possible, depend on, imagine 等）； 理解 “好奇心、创造力、需求催生发明” 的内涵；能讨论发明的意义，完成简单议论文写作构思，树立创新意识。 能借助思维导图口头复述发明如何改变人们出行、沟通、生活；识别 V‑ed 的三种功能（形容词、现在完成时动词、状语）。 Lead in 01 What’s this? Fuxing high-speed train 复兴号 What can it do for us? It can take us to far places quickly. It makes our trip fast and comfortable. 复兴号 Pre-reading 02 Activate and Share Activity 1 Think of some modern inventions.How have they changed the world? Talk with a partner. Cars have changed the world. They help people travel farther and faster. The invention of the internet allows people to communicate no matter where they are. Activate and Share Activity 2 ______________ have/has changed the world. It/They help (s) people ________________________. The invention of ________________allows people to ______________. Smart phones pay anytime anywhere high-speed trains travel faster While-reading 03 Read and Understand Activity 2 Read the text. In what ways have these inventions changed the world? Throughout history, there have been some great inventions that have changed the world. As a result, people’s lives have been improved in many ways. Inventions have continuously changed the way people move around. Before cars were invented in the late 1800s, people had to ride horses or walk. But with cars, travelling has become much faster and easier. The invention of steam ships and steam trains also provided people with more choices to travel. Compared to ships or trains, the invention of planes made it possible for people to travel to many parts of the world in a much shorter time. Nowadays, travelling in high-speed trains has become the best choice for most people in China because they are fast, comfortable and convenient. 1. throughout history 纵观历史 2. as a result 因此，结果 3. in many ways 在许多方面 4. move around 出行，四处走动 5. in the late 1800s 在 19 世纪晚期 6. ride horses 骑马 7. provide sb. with sth. 为某人提供某物 8. compared to 与…… 相比 9. make it possible for sb. to do sth. 使某人有可能做某事 10. in a much shorter time 在短得多的时间里 11. high-speed trains 高铁 12. the best choice for …… 的最佳选择 Read and Understand Activity 2 Read the text. In what ways have these inventions changed the world? Inventions have also changed the way people communicate. For thousands of years, people wrote letters when face-to-face communication was impossible. The invention of the telegraph in the 1830s changed the situation. People could send and receive messages from far away at an unbelievable speed. With the invention of telephones, people were able to communicate in real time. Thanks to the invention of the internet, people can now send emails, have video calls, group chats, and online meetings on their smartphones, no matter where they are. 1. the way people communicate 人们交流的方式 2. for thousands of years 数千年以来 3. face-to-face communication 面对面交流 4. the invention of …… 的发明 5. in the 1830s 在 19 世纪 30 年代 6. send and receive messages 收发信息 7. from far away 从远方 8. at an unbelievable speed 以惊人的速度 9. be able to 能够 10. in real time 实时地 11. thanks to 多亏；由于 Read and Understand Activity 2 Read the text. In what ways have these inventions changed the world? Other inventions have also helped improve the quality of people’s lives. For example, the invention of the light bulbs in the 19th century allowed people to see at night without lighted candles. Computers, TVs, washing machines and lifts are all inventions that people can’t imagine living without and they depend on electricity. Learning how to use electricity as a source of energy was one of the most outstanding achievements in human history. To conclude, from the moment someone used a rock as the first tool, new inventions keep coming into the world. It’s human curiosity, creativity and our needs to solve problems that give birth to these inventions. 1. improve the quality of people’s lives 提高人们的生活质量 2. for example 例如 3. in the 19th century 在 19 世纪 4. allow sb. to do sth. 允许某人做某事 5. can’t imagine living without 无法想象没有…… 的生活 6. depend on 依靠；依赖 7. a source of energy 能源 8. one of the most outstanding achievements 最杰出的成就之一 9. to conclude 总而言之 10. come into the world 问世；诞生 11. give birth to 催生；产生 Read and Understand These inventions have changed the world in three main ways: They have changed the way people move around. Travelling becomes faster, easier and more convenient. They have changed the way people communicate. People can communicate quickly and in real time no matter where they are. Activity 2 Read the text. In what ways have these inventions changed the world? They have helped improve the quality of people’s lives. Many useful inventions make our life much better. Read and Understand Activity 3 Read the text again. What inventions are mentioned in each part? What changes have they brought about? Complete the diagram. Read and Understand Activity 3 Read the text again. What inventions are mentioned in each part? What changes have they brought about? Complete the diagram. Inventions Changes Cars Travelling becomes much faster and easier. Steam ships Give people more choices to travel. Steam trains Give people more choices to travel. Planes People can travel to many parts of the world in a much shorter time. High-speed trains Travel is fast, comfortable and convenient. Read and Understand Activity 3 Read the text again. What inventions are mentioned in each part? What changes have they brought about? Complete the diagram. Inventions Changes Telegraph People could send messages from far away. Telephones People were able to communicate in real time. The Internet / smartphones People can send emails, have video calls, chat in groups and hold online meetings anywhere. Inventions Changes Light bulbs People can see clearly at night without candles. Computers, TVs Make our life richer. Washing machines, lifts Make our daily life easier. Activity 4 Use your notes in Activity 3 to tell a partner about how these inventions have changed people’s lives. Read and Understand Some inventions change how we travel. Planes, cars and high-speed trains make travelling faster. Some change how we communicate. Telephones and the Internet let us talk with people far away. Others improve our life quality. Light bulbs, washing machines and lifts make our daily life easier. Post-reading 04 Activity 5 Analyse and Appreciate Underline the topic sentence of each paragraph.How are they connected to each other? Which diagram below best shows the structure of the text? What examples are used to support each topic sentence? Read and Explore Activity 6 Think and Share How do you understand the last sentence in the text? Use examples to support your idea. Think and Share It’s human curiosity, creativity and our needs to solve problems that give birth to these inventions. It tells us that curiosity, creativity and the need to solve problems lead to inventions. For example, people needed fast travel, so planes were invented. People wanted to communicate over long distances, so we have phones. Focus on Language 05 Vocabulary in use Activity 7 Vocabulary in Use Complete Danny and Laura’s dialogue with the correct form of the word and expressions in the box. 1. the most outstanding 2. made it possible 3. steam ships 4. at an unbelievable speed 5. imagine 6. depend on Grammar 06 Grammar Discovery Activity 8 Grammar Discovery V-ed Study the sentences carefully. What is the function of each underlined word: an adjective, a verb in the perfect tense or an adverbial phrase? Then, complete the My Discovery box. 1 Compared to ships or trains, the invention of planes made it possible for people to travel to many parts of the world in a much shorter time. 2 Inventions have also changed the way people communicate. 3 The invention of the light bulbs in the 19th century allowed people to see at night without lighted candles. adverbial phrase（状语） verb in the perfect tense（完成时中的动词过去分词） adjective（形容词，修饰 candles） Grammar Discovery an adjective, a verb in the perfect tense or an adverbial phrase. Activity 8 Grammar Discovery V-ed Study the sentences carefully. What is the function of each underlined word: an adjective, a verb in the perfect tense or an adverbial phrase? Then, complete the My Discovery box. 07 Express yourself Activity 9 Writing Speaking Can you think of a simple invention that people cannot live without? Why is it important? Write an essay. Explain with examples. Invention（发明物） Why we can’t live without it（为什么离不开） Examples（实例） Importance（意义） - …is an invention that people cannot live without. - Without it, our life would be very hard. - For example, … - It makes it possible for us to… Useful sentences: Activity 9 Writing Speaking Can you think of a simple invention that people cannot live without? Why is it important? Write an essay. Explain with examples. The Mobile Phone The mobile phone is an invention that people cannot live without. It helps us talk with family far away. We can also search for information and pay for things anytime. For example, we can video chat with our friends easily. New things are continuously invented because people hope to solve problems and make life easier. Assessment 07 Self-assessment I can acquire expressions related to team activities through watching and listening activities. I can share experiences of team activities in real - life contexts. I can understand and recognize the importance of collaborative cooperation in team activities. 08 Homework Basic (基础) 熟读课文，背诵重点短语。 Improving(提升) Extend (拓展) 写一篇 80 词左右短文：An invention I can’t live without（Activity9 写作）。 完成本课任务单，整理 V-ed 三种用法笔记。 $