Unit 4 Space Exploration Listening and Speaking 教案-2024-2025学年高中英语人教版（2019）必修第三册

Unit 4 Space Exploration-Listening and Speaking教学设计 教学目标 Knowledge & Skills: Students will master space exploration - related vocabulary like "astronaut", "launch", etc. They are expected to understand listening materials about space exploration, catching key details, and express their own ideas on this topic fluently. Process & Methods: Through listening prediction, note - taking and group discussion, students enhance listening skills and learn to cooperate with peers in communication. Affect & Values: Foster students' curiosity about space and inspire their interest in scientific exploration. Cultural Awareness: Enable students to understand the international cooperation and different cultural attitudes in space exploration. 重难点 Key: Grasping space - related vocabulary and expressions; improving listening comprehension and oral communication skills on space exploration. Difficult: Comprehending complex information in listening materials and expressing in - depth views on the significance and challenges of space exploration. 教学环节 学习活动 新课教学 Teacher: Good morning, class! Today, we're going to embark on an exciting journey through the vast expanse of space in our Listening and Speaking class. Space exploration has always fascinated humanity. It's a field that combines science, technology, and our innate curiosity about the universe. Before we start, I want you to think about this: What comes to your mind when you hear the term "space exploration"? Take a moment to jot down a few ideas. (Students spend a short time writing) Teacher: Alright, let's share. Who would like to start? Yes, Tom. Tom: I think of rockets blasting off into the sky, and astronauts walking on the moon. Also, space telescopes that can see faraway galaxies. Teacher: Excellent, Tom. Rockets and astronauts are indeed iconic symbols of space exploration. And the space telescopes, like the Hubble, have revolutionized our understanding of the cosmos. Now, let's have another volunteer. Mary? Mary: I think about the search for extraterrestrial life. And all the new planets that scientists keep discovering. Teacher: That's a very interesting point, Mary. The hunt for life beyond Earth is one of the most compelling aspects of space exploration. With the discovery of thousands of exoplanets in recent years, the possibility of finding other living beings seems more real than ever. Now, let's move on to our listening part. We're going to listen to a conversation between two space enthusiasts, Dr. Johnson and Ms. Green. As you listen, I want you to pay attention to the following questions: What are the main achievements in space exploration they discuss? And what challenges do they mention? Listen carefully, and we'll discuss the answers afterwards. (The teacher plays the recording of the conversation) Conversation between Dr. Johnson and Ms. Green: Ms. Green: Dr. Johnson, it's so great to talk to you about space exploration. It's such an exciting field. Dr. Johnson: Absolutely, Ms. Green. There have been some truly remarkable achievements in recent times. Take the International Space Station (ISS), for example. It's a floating laboratory in space where astronauts from different countries conduct all sorts of experiments. We've learned so much about how the human body reacts in microgravity, which is crucial for long - term space missions. Ms. Green: That's amazing. And what about the exploration of Mars? I know there have been several rovers sent to the red planet. Dr. Johnson: Right. The Mars rovers like Curiosity and Perseverance have been a huge success. They've been able to analyze the Martian soil and atmosphere, and Perseverance is even collecting samples to potentially bring back to Earth. This could help us understand if life ever existed on Mars. Ms. Green: But space exploration isn't without its challenges, is it? Dr. Johnson: No, it's not. One of the biggest challenges is the cost. Sending a spacecraft into space, let alone to another planet, is extremely expensive. For example, a single space shuttle mission used to cost billions of dollars. And then there are the risks to the astronauts. The space environment is full of radiation, and there's always the danger of equipment failure. Ms. Green: I hadn't thought about the radiation aspect. That sounds really dangerous. Dr. Johnson: It is. Astronauts on long - term missions, like those on the ISS, are exposed to levels of radiation that are much higher than on Earth. We're still trying to figure out better ways to protect them. Teacher: Okay, the conversation has ended. Let's start with the first question. What were the main achievements in space exploration that Dr. Johnson and Ms. Green discussed? Lucy, would you like to share? Lucy: They talked about the International Space Station, where astronauts do experiments on how the human body reacts in microgravity. And they also mentioned the Mars rovers, like Curiosity and Perseverance, which analyze the Martian soil and atmosphere and Perseverance is collecting samples. Teacher: Perfect, Lucy. You've summarized it very well. Now, let's move on to the challenges. What challenges did they mention? Sam? Sam: They said the cost is a huge challenge. Sending spacecraft into space is extremely expensive. And there are risks to astronauts, like radiation exposure and equipment failure. Teacher: Exactly, Sam. The high cost and the risks to astronauts are indeed major obstacles in space exploration. Now, let's dig a little deeper. Let's have a group discussion. Each group will discuss this question: If you were in charge of a space exploration project, how would you try to overcome the cost challenge? You have five minutes to discuss. (Groups start discussing) Teacher: Alright, let's start with Group 1. What ideas did your group come up with? Group 1 representative: We thought we could try to build more reusable spacecraft, like SpaceX's Falcon 9 rocket. This way, we don't have to build a new rocket for every mission, which could save a lot of money. Also, we could look for more international partnerships. If more countries contribute, the cost can be shared. Teacher: Those are excellent ideas. The concept of reusable spacecraft is already revolutionizing the space industry, and international cooperation has been key in many successful space projects. Group 2, what did your group suggest? Group 2 representative: We considered using more advanced materials that are lighter but still strong. Lighter spacecraft would need less fuel, which is a major expense. And we could also focus on more cost - effective ways of launching. Maybe using a type of electromagnetic launch system instead of traditional chemical rockets. Teacher: That's very innovative thinking. Using advanced materials and exploring new launch methods could potentially reduce costs significantly. Now, let's move on to our speaking activity. I'm going to divide you into pairs. Each pair will have to create a short dialogue about a future space mission. You can choose any destination in space, like the moon, Mars, or even a far - away star system. In your dialogue, you should mention at least two challenges the astronauts might face and how they plan to overcome them. You have ten minutes to prepare your dialogue. (Pairs start preparing their dialogues) Teacher: Alright, let's start with the first pair. Anna and Ben, are you ready? Anna: Yes, we are. Our dialogue is about a mission to Mars. Ben: Scene: Inside the spaceship on the way to Mars. Anna: Astronaut 1: I'm a bit worried about this long journey to Mars. The radiation levels are really high. Ben: Astronaut 2: I know. But we have a special radiation - shielding system installed. It's made of a new composite material that can block most of the harmful radiation. Anna: That's good. But what about the food supply? We're going to be in space for a long time. Ben: Astronaut 2: Well, we've got a hydroponics system on board. We can grow some fresh vegetables during the journey, and we also have a stockpile of dehydrated food. Teacher: Very good, Anna and Ben. You've clearly thought about the challenges and come up with practical solutions. Let's have the next pair, Sarah and Jack. Sarah: Our mission is to a far - away star system. Jack: Scene: In the control room of the spaceship. Sarah: Astronaut 1: The biggest problem I see is the distance. It's going to take us decades to reach the star system. Jack: Astronaut 2: True. But we've developed a new type of engine that uses nuclear fusion. It's much more efficient and will cut down the travel time significantly. Sarah: And what about the psychological well - being of the crew? Being in space for so long can be really tough. Jack: Astronaut 2: We have a team of psychologists on board. They'll conduct regular counseling sessions, and we also have virtual reality systems to simulate Earth - like environments to keep the crew's spirits up. Teacher: That's a great dialogue, Sarah and Jack. You've addressed some very complex challenges associated with deep - space exploration. Now, let's summarize what we've learned today. We've listened to a conversation about space exploration achievements and challenges, and we've also created our own dialogues about future space missions. Can anyone sum up the key points? Emma? Emma: We learned about achievements like the ISS and Mars rovers. The challenges are high cost, radiation, and risks to astronauts. And in our dialogues, we came up with ways to overcome challenges like radiation, long - distance travel, and food supply for future space missions. Teacher: Wonderful summary, Emma. For your homework, I want you to write a short paragraph about one space exploration achievement that you find the most inspiring. Explain why it inspires you and what impact it might have on the future of humanity. This will help you reflect more on the amazing world of space exploration. That's all for today's class. Have a great day! 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 $$