Unit 3 Make it happen! Presenting ideas英文教案-2025-2026学年外研版（2024）八年级英语上册

Unit 3 Make it happen!-Presenting ideas 【教学目标】 Language Ability: Apply functional language (e.g., propose solutions, justify opinions) and grammatical structures (modal verbs for suggestions: should, ought to) to present ideas logically. Cultural Awareness: Compare how different cultures express collaborative ideas, respecting diverse communication styles. Thinking Quality: Organize ideas coherently, using cause-effect analysis and evidence-based reasoning to support proposals. Learning Capacity: Develop peer feedback skills through group presentations, enhancing collaborative learning and self-reflection. 【教学重难点】 Oral Presentation: Use linking words (firstly, furthermore) and intonation to engage audiences; pronounce phrases like "brainstorm ideas" fluently. Argument Construction: Structure persuasive speeches with clear claims, reasons, and examples. Interactive Skills: Respond appropriately to follow-up questions, applying "I agree/disagree because..." patterns. Writing Transfer: Convert oral ideas into written reports with proper paragraphing and transition words. 【教学过程】 一、开场引入（约 3 分钟） T: Good morning/afternoon, dear students! We've been on an exciting journey in Unit 3, exploring the wonderful world of inventions. We've learned about how some inventions came into being, like the robotic arm invented by Easton LaChappelle, and how curiosity drives inventors. Today, we are going to take a big step forward in presenting our own ideas about inventions. So, are you all ready to show your creativity and speaking skills? Ss: Yes! 二、回顾知识（约 5 分钟） T: First, let's quickly recall some key words and phrases we learned in the previous classes. Who can tell me a word related to inventions? （Pause for students to respond） S1: Invention itself! And inventor. T: Very good. What about some phrases? For example, when we talk about using materials to make something. S2: Build... out of... like Easton built the robotic arm out of plastic blocks. T: Exactly. Now, let's also think about some grammar points. We learned about using to - infinitive and - ing as objects. Can you give an example? S3: He decided to post his design online. Here, “to post” is a to - infinitive as the object of “decided”. S4: She enjoys fixing problems. “Fixing” is the - ing form used as the object after “enjoys”. T: Great job, everyone. These words, phrases, and grammar points will be very useful for us in today's class when we present our ideas. 三、任务说明（约 3 分钟） T: Now, let's look at our main task for today. In this class, we are going to make a display board about an invention. This is a group task. You will work in groups of four. First, you need to search for information about great inventions. They can be either from history or modern times. Then, talk about their inventors and the importance of these inventions. After that, your group will take a vote to decide on one invention to focus on for your display board. T: When making the display board, you will use a specific outline to organize your ideas. We will go through this outline together in a while. And later, each group will present your display board to the class. Finally, we will vote on the best three display boards and the best three presentations. So, it's going to be a fun and competitive class! Are you clear about the task? Ss: Yes! 四、Group Work Preparation - Brainstorming（约 7 分钟） T: Now, find your group members quickly. （Students form groups）Let's start with brainstorming. Spend a few minutes in your groups discussing different inventions that you know. You can write them down on a piece of paper. Think about not only well - known inventions like the light bulb but also some unique or less - known ones. （Walk around the classroom, observing and listening to students' discussions） T: Time's up. Which group wants to share some of the inventions you brainstormed? Group 1: We thought of the smartphone, the airplane, and the zipper. Group 2: We listed the microwave oven, the compass, and the 3D printer. T: Great! These are all very interesting inventions. Now, let's move on to the next part of gathering more information about the inventors and the importance of these inventions. 五、Group Work - Gathering Information（约 10 分钟） T: In your groups, you can use your textbooks, the internet on your tablets (if allowed in class), or your own general knowledge to find out more about the inventions you brainstormed. For each invention, write down who the inventor was (if known), and why the invention is important. It could be because it changed people's lives, improved efficiency, or solved a big problem. （Students start gathering information, and the teacher continues to walk around, offering help and guidance） T: Let's stop here for a moment. Can one group share what you've found about one of the inventions? Group 3: We were looking at the airplane. The Wright brothers, Orville and Wilbur Wright, invented the airplane. It's important because it made long - distance travel much faster. Before airplanes, traveling long distances took a very long time by ship or train. Now, people can travel across the world in a matter of hours. T: Fantastic! That's a very clear and good explanation. Keep up the good work, everyone. 六、Group Work - Voting and Starting the Display Board Outline（约 10 分钟） T: Now that you have some information about different inventions, it's time to take a vote in your groups. Decide which one invention your group will focus on for the display board. Remember, choose the one that your group members are most interested in and think you can present well. （Students vote in their groups） T: After you've decided on the invention, let's start looking at the outline for the display board. On the board, I've written down the main parts: Invention name, Problem, Solution, About the inventor, Materials, and How it works. Let's go through each part. T: For “Invention name”, it's straightforward. Just write down the name of the invention you've chosen. For “Problem”, think about what problem people faced before this invention was created. For example, before the invention of the telephone, people had a hard time communicating over long distances quickly. How would you describe the problem for your chosen invention? （Ask a group） Group 4: For the 3D printer, the problem could be that it was difficult and expensive to create custom - made objects. People had to rely on traditional manufacturing methods which were time - consuming and not very flexible. T: Excellent. Now, for “Solution”, this is where you explain how the invention solved the problem. Using the 3D printer example again, the solution was that the 3D printer could create objects layer by layer according to a digital design, allowing for easy customization and at a relatively lower cost. What about your group's solution for your invention? （Ask another group） Group 5: For the microwave oven, the solution was that it used microwave radiation to heat food quickly. People no longer had to wait a long time for their food to heat up on a stove or in an oven. T: Great. Now, let's move on to “About the inventor”. Talk about who the inventor was, their background, and what led them to invent this thing. For example, Alexander Graham Bell was a scientist and inventor who was interested in sound and communication, which led him to invent the telephone. How about your inventor? （Ask a group） Group 6: For the zipper, the inventor was Whitcomb Judson. He was an engineer. He noticed the inconvenience of fastening and unfastening clothes with buttons and hooks, so he came up with the idea of the zipper. T: Very good. “Materials” is about what materials were used to make the invention. And “How it works” is self - explanatory. Now, start filling in this outline for your chosen invention in your groups. 七、Group Work - Continuing the Display Board（约 15 分钟） T: Keep working on your display board outlines. You can add more details, and if you have pictures or simple drawings related to your invention, you can start planning where to put them on the display board. Remember to use the language we've learned in this unit. For example, when talking about the inventor, you can say “... was curious about...” or “... spent years studying...”. （Students continue working on their display boards, and the teacher provides individual help as needed） 八、Group Presentations - First Group（约 8 分钟） T: Okay, let's start with the presentations. Which group would like to go first? （Group 1 raises their hands）Great, Group 1, come to the front with your display board. Group 1: （Comes to the front and stands beside the display board）Hello, everyone. Our invention is the smartphone. The problem it solved was that people needed a device that could combine communication, information access, and entertainment in one. Before smartphones, people had to carry separate devices like a mobile phone, a camera, a music player, and a computer if they wanted to do different things. The solution is the smartphone. It has a touch - screen interface, powerful processors, and a wide range of apps. You can make calls, send messages, take pictures, listen to music, and browse the internet all on one device. The inventor of the smartphone is not just one person. Many companies and inventors contributed to its development over time. Some of the key players include Apple with the iPhone, which revolutionized the smartphone industry. The materials used include metal, plastic, glass for the screen, and various electronic components. How it works is that it has a central processing unit that runs the operating system and apps. The touch - screen senses your touch and sends signals to the processor, which then performs the corresponding actions. That's all about our invention. Thank you! T: Thank you, Group 1. That was a very comprehensive presentation. Class, what do you think of their presentation? Do you have any questions or comments? S7: I think it's great. They explained everything clearly. I just have a question. How did the first smartphone come about? Like, what was the very first model? Group 1: We think the first smartphone was the IBM Simon. It was released in 1994 and had features like a touch - screen, email, and the ability to run some simple apps. T: Very good. Let's give Group 1 a round of applause. （Applauds） 九、Group Presentations - Second Group（约 8 分钟） T: Which group is next? （Group 4 raises their hands）Okay, Group 4, it's your turn. Group 4: Good day, everyone. Our invention is the 3D printer. The problem we mentioned before was the difficulty and high cost of creating custom - made objects. The 3D printer solved this problem by allowing people to create three - dimensional objects from a digital design. It's like having a personal factory at home. The inventor of the 3D printer is Chuck Hull. He was a scientist who was curious about how to create objects in a new way. He spent years researching and developing the technology. The materials used can be plastic, resin, metal, and even some types of food. It works by heating up the material and depositing it layer by layer according to the digital design. You can see on our display board a simple model of how the layers are built up. That's our presentation. Thank you! T: Well done, Group 4. Class, any thoughts or questions? S8: I was wondering if 3D printers can be used in industries other than just making small models. Group 4: Yes, they can. In the medical field, 3D printers are used to create prosthetics and even some parts of organs for research. In the automotive industry, they are used to make prototypes of car parts. T: Great answer. Let's applaud Group 4. （Applauds） 十、Group Presentations - Third Group（约 8 分钟） T: Now, let's have the third group present. （Group 6 raises their hands）Go ahead, Group 6. Group 6: Hi, everyone. Our invention is the zipper. As we said before, the problem was the inconvenience of fastening and unfastening clothes with traditional methods. The zipper provided a quick and easy solution. The inventor, Whitcomb Judson, was an engineer. He was looking for a better way to fasten things. The materials used are usually metal or plastic teeth, and a slider. The way it works is simple. When you move the slider up, it interlocks the teeth, and when you move it down, it separates the teeth. We have a small demonstration here on our display board. （Demonstrates the zipper on a small piece of fabric attached to the display board）That's our zipper presentation. Thank you. T: Thank you, Group 6. Class, what do you think? S9: It's interesting how such a simple - looking invention can be so useful. I want to know if the design of the zipper has changed a lot since it was first invented. Group 6: Yes, it has. Over the years, the materials have improved, and the design has become more durable and smooth - operating. There are also different types of zippers now, like waterproof zippers for outdoor gear. T: Excellent. Let's give Group 6 a big hand. （Applauds） 十一、Voting（约 5 分钟） T: Now, it's time to vote for the best three display boards and the best three presentations. I will hand out small pieces of paper to each of you. Write down the numbers of the groups that you think had the best display boards and the best presentations. Remember to consider how well they presented the information, how creative their display boards were, and how clearly they answered the questions. （Hands out papers, students vote, and the teacher collects the papers） T: While I'm counting the votes, let's quickly summarize what we've learned today. We've learned how to present ideas about inventions through making display boards. We've used our knowledge of inventions, inventors, and the English language we learned in this unit. 十二、Conclusion and Announcement of Results（约 4 分钟） T: Okay, I've counted the votes. The three groups with the best display boards are... （Announces the groups）And the three groups with the best presentations are... （Announces the groups）Congratulations to all the winning groups! You all did an amazing job in this class. Remember, inventions are all around us, and your creativity and presentation skills can make these inventions come to life in a new way. Keep exploring the world of inventions and keep improving your English. 十三、Homework Assignment（约 2 分钟） T: For homework, I want you to write a short paragraph about an invention that you are still interested in but didn't get to present today. Include the problem it solved, the solution it provided, and a little bit about the inventor. Use the words and phrases we learned in this unit. This will help you further practice what we've learned in class. 学科网（北京）股份有限公司 学科网（北京）股份有限公司 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $$