Unit 6 Survival Developing ideas 课件-2024-2025学年高中英语外研版（2019）选择性必修第二册

By Mr. Able Book 5 Unit 6 Survival Developing ideas 外研社2019版 选择性必修第二册 Activity 1 Lead-in Watch a film clip and describe your feelings after watching. Activity 1 Lead-in Where could we humans live if the terrifying scenes in the film should happen in real life? Do we have a plan B? 1. Mars is the ____ smallest planet in the solar system. a. second b. third c. fourth 2. The surface of Mars is covered in ________. a. rocks b. water c. grass 3. The average recorded temperature on Mars is ____. a. 40°C b. 2°C c. -63°C 4. One day on Mars is about _________ long. a. 18 hours b. 24 hours c. 37 hours Activity 2 Background information Complete the quiz and find out how much you know about Mars. Try to guess if you are not sure of the answers. Watch a video about Mars and check your answers. 1. Mars is the ____ smallest planet in the solar system. a. second b. third c. fourth 2. The surface of Mars is covered in ________. a. rocks b. water c. grass 3. The average recorded temperature on Mars is ____. a. 40°C b. 2°C c. -63°C 4. One day on Mars is about _________ long. a. 18 hours b. 24 hours c. 37 hours Activity 2 Background information About Mars Located at an average distance from the Sun of 228 million kilometres, Mars is the fourth planet of the Solar System. It is also known as the Red Planet, because of its distinctive colour. Mars is slightly more than half the size of Earth, with correspondingly lower gravity. It is a dry, rocky planet, with white polar “ice” caps that consist mostly of frozen carbon dioxide. Since the 1960s, Mars has been the subject of several unmanned exploration missions. China’s Tianwen-1 Mars probe was launched successfully on 23 July 2020 and the Mars rover Zhurong successfully landed on the Red Planet on 15 May 2021 and then sent back its first images from the surface of Mars. Activity 2 Background information Do you think human beings can live on Mars in the future? Give me your reasons. What do you assume the passage talks about? Activity 3 Prediction Activity 4 Fast reading Read the text fast and find the main idea of each paragraph and its structure. Para 1 the introduction of the topic Para 2 possibilities of living on Mars Para 3 explorations of Mars Para 4 challenges of living on Mars Para 5 the author’s conclusion Part I Part II Part III The Traveller All About Space Environmental Concerns Biology for Fun Choose the magazine in which you would most likely find the passage and give your reasons.（Ex3） Activity 4 Fast reading Activity 5 Careful reading Choose the statements that can be inferred from the passage.（Ex4） Humans have yet not visited Mars. People want to go to Mars on holiday. There are plants growing on Mars. The greatest risk to life on Earth used to be nuclear missiles. One day, humans will have to go and live on another planet. Our Plan A includes developing renewable energy resources. The Biosphere 2 experiment ended in failure. Sometimes, we need to form opinions and draw conclusions that are not directly stated within the given information. For example, from the sentence “While the Moon can be reached within days, it would take months to reach Mars, travelling through dangerous solar radiation”, we can infer that the Moon is less exposed to dangerous radiation than Mars. Headings and pictures can also help us make educated guesses about a text. Learning to learn Activity 5 Careful reading Read para 1 and answer the question: In the 1960s and 1970s,the greatest fear was that the human race, and possibly all advanced life forms on the planet, could be wiped out by nuclear missiles, just at the push of a button.Today, however, environmental problems have taken over as the greatest risk to life on Earth. Scientists are thinking of ways to lower this risk, such as replacing coal and oil with forms of renewable energy. But they are also preparing for the worst: what can we do if the terrifying scenes in films such as The Day After Tomorrow happen in real life? What is our Plan B for Earth? Q1. Why should we have Plan B for Earth? fears ________________ ________________ solutions Plan A: ______________________ Ways to lower the risk Plan B: ______________________ Find a new home outside Earth nuclear missiles (past) environmental problems (now) ______________________________________ Activity 5 Careful reading Read para 2 and answer the questions: One option is to explore other planets to see if we could live on them. The most likely choice is Mars, which is relatively close to Earth and has an environment less hostile than that of other planets. Mars has fascinated people since ancient times, and today our interest in Martian exploration is greater than ever before. Films such as The Martian enjoy worldwide popularity. More governments and organisations are making efforts to educate the public on the Red Planet, for example, the Mars Desert Research Station in the Utah desert of the US and the Mars Village in North-west China’s Qinghai Province. Q2. What makes it possible for us to live on Mars? It is relatively _________ Earth and has a _______________ environment. close to less hostile Q3. What efforts are we making? To educate the public on the Red Planet the Mars Village ______________________________________ ... Let’s read on! the Mars Desert Research Station Activity 5 Careful reading Read para 3 and answer the questions: Q4. How have human beings explored the Mars? Since the 1960s, we have been sending unmanned spacecraft to Mars. Our probes have orbited the planet, sending back valuable data and stunning images. Our robots have explored the Martian surface, testing the soil and searching for resources, water and signs of life. Encouraged by discoveries over the years, space agencies of various countries are planning manned missions to Mars that could take place within the next 25 years. sending unmanned spacecraft to Mars Probes--orbiting the planet Robots--Exploring its surface planning manned missions to Mars Activity 5 Careful reading Read para 4 and answer the questions: There is no doubt that humankind is drawn towards Mars, with dreams of making it our second home. However, sending people there will require all the skill, courage and intelligence of the human race. While the Moon can be reached within days, it would take months to reach Mars, travelling through dangerous solar radiation. And even if the first settlers do reach Mars safely, they may not be able to return to Earth--ever. Staying alive will be a daily challenge, but as proved by the Biosphere 2 experiment, not impossible. As early as the 1980s, scientists were building Biosphere 2 in the Arizona desert. It consisted of a closed space in which people, animals and plants could live together. The “closed” concept meant that the space was designed to function with its own oxygen, food and water, needing nothing from the outside world. Although the two-year experiment was not a success, it did provide us with a better understanding of how humans might be able to live on another planet. More recently, scientists have succeeded in growing a variety of plants in an environment similar to that on Mars. That definitely is a big step forward. Q5. What are the challenges of moving to Mars? Q6. What did the Biosphere 2 experiment prove and achieve? solar radiation 1 Sending people there will require all the skill, courage and intelligence of the human race. 2 It would take months to reach Mars, travelling through dangerous solar radiation. 3 Even if the first settlers do reach Mars safely, they may never be able to return to Earth. 4 Staying alive will be a daily challenge, but not impossible. Q5. What are the challenges of moving to Mars? 15 not possible to live in a closed environment for long provide us with a better understanding of how humans might be able to live on another planet Q6. What did the Biosphere 2 experiment prove and achieve? 16 For now, human settlement of Mars is still decades away. In the meantime, scientific research shows that the planet Earth is getting warmer. This change is being caused by human activity and is having a terrible effect on the biosphere. Until we are finally able to live on another planet, we need to take much better care of our own. Right now, it's the only one we have! Activity 5 Careful reading Read para 5 and answer the questions: Q7. What’s the author’s purpose in writing the passage? The author’s purpose is to raise public awareness of environmental protection by pointing out the tiny possibility of our moving to Mars in the future. Think Share Activity 6 After reading Choose one topic to discuss in groups. Topic1. Would you like to be one of the first people to live on Mars? Why or why not? Topic2. Which is better, to live on Mars or to solve Earth’s problems? Why? Think Share Activity 6 After reading Brainstorm: Can you think of a “Plan C” to save people from the problems on Earth? Share it with the class. Space Colonies Establishing self-sustaining space colonies or space stations in orbit around Earth or elsewhere in the solar system could serve as temporary or permanent habitats. Generation Ships 世代飞船 These are theoretical spacecraft designed to support multiple generations of humans on long-duration space voyages, potentially to new planets. Digital Existence Some speculate that humans could transfer their consciousness into digital forms, living within computer systems or virtual realities. Work in pairs. Conduct an interview about living on Mars.(Ex5) 1. Decide your roles. 2. Look at the sample questions about living on Mars and add any more you can think of. Then write down some answers. ◎ What can you see from the window of the spacecraft? ◎ Can you go outside? ◎ How do you get food on Mars? ◎ What do you miss about Earth? Activity 6 After reading Role-play By Mr. Able Book 5 Unit 6 Survival Writing 外研社2019版 选择性必修第二册 1. Where is the person in the story? 2. What difficulties is he facing? 3. What has he already done to stay alive? 4. What will he do next? Read the story and answer the questions. (Ex6) Activity 1 Reading He is on Mars. Left alone on Mars; deadly radiation; Lack of water and oxygen; Food shortage. He has resumed communication with the base and discovered an underground ice deposit nearby. He must work out how to farm on Mars and grow his own food. Activity 2 Language points It's been a week since the other astronauts left Mars and went back to Earth, accidentally leaving me here alone. I was caught in a dust storm and lost contact with them. After resuming communication with the base five days later, I was informed that it will be eight months before a rescue mission arrives from Earth. Fortunately, I have shelter, because the landing capsule protects me from the deadly radiation outside. The capsule is powered by a small nuclear plant. It might have just enough electricity for eight months, if nothing goes wrong. What’s more, my spacesuit keeps me safe from exposure to the Martian surface for up to several hours at a time. Water and oxygen were my biggest worries at first, but I’ve discovered an underground ice deposit nearby. I can reach the ice with our survey tools. That’s lucky, because I can drink the water from the ice and also use it to produce oxygen when I run low. Now I am worried about food. There is only enough for one person for four months--four months short of what I need. Part of our mission was to experiment with growing plants in the Martian soil, so I have seeds of various kinds. I must work out how to farm on Mars. If I can solve that challenge, and if the electricity supply holds, I can survive until I am rescued. There’s still hope! Para. 1 In order to survive, I started to farm on Mars. ____________________________ ____________________________________________________________________ Para. 2 After continuous efforts, I'm waiting for the rescue hopefully. _______________ ____________________________________________________________________ Will the astronaut finally come back to Mother Earth? If you were him, how would you feel, what would you do to survive, and what were your destiny? Use your imagination and continue the story with the help of the opening sentences. Activity 3 Continuation writing By Mr. Able Book 5 Unit 6 Survival Presenting ideas 外研社2019版 选择性必修第二册 Read the story and answer the questions. (Ex1) Activity 1 Reading The green lizards that lived in the lower branches and trunks of Florida's trees found themselves in trouble when a tougher species, the brown lizards, were introduced from Cuba.Without enough food to go around, and under pressure from the new arrivals, the green lizards moved higher up the trees, where it is harder to keep a grip on the smoother branches. The green lizards adapted quickly over a relatively short time of 15 years, and now they have bigger pads on their toes and stickier scales to help them stay high in the trees -- and well away from their troublesome neighbours! Q1. What happened to the green lizards? What did they do to cope with it? Q2. What is the main message of the passage? Q1. What happened to the green lizards? What did they do to cope with it? They found themselves in trouble because a tougher species, the brown lizards, was introduced to the place where they lived. The green lizards moved higher up the trees and soon adpated to the new environment. Q2. What is the main message of the passage? The main message is the survival of the fittest. Read the story and answer the questions. (Ex1) Activity 1 Reading Work in groups. Find evidence to back up the main message and make notes. Do further research if necessary. (Ex2) Evidence in nature: ______________________________________________________________________________________________________________________________________________________________________________ Evidence in society: _________________________________________________________________________________________________________________________________________________________________________________ the giraffe’s neck gets longer and longer in order to eat the high leaves. The seeds of dandelions are getting lighter and lighter, and the flowers are blowing in the wind to new places to give birth to new life. To see further, humans began to walk upright. When Confucius was in trouble in the states of Chen and Cai, he wrote Chunqiu. Activity 2 Speaking --End of B5U6 Activity 7 Revision Words adj.惊人的，极具吸引力的→ v.使震惊 v.使暴露(于险境)→ n.暴露 　　 adj.极其可怕的→ n.恐怖;恐惧 → v.使惊吓;使恐惧 4. v. 使着迷→ 　　 n.着迷,迷恋 → adj.迷人的;极有吸引力的 5. v.推断,推定→ n.推断;推理;推论 6. n.沙土,尘土→ adj.布满灰尘的 stunning stun expose exposure terrifying terror terrify fascinate fascination fascinating infer inference dust dusty Activity 7 Revision phrases 彻底摧毁;消灭wipe 在全世界受欢迎popularity 在某事上对某人予以教育educate 探究某事 probe 由...构成consist 与此同时meantime 曝光于;暴露于exposed 一次;每次time 缺乏;即将用尽low 用...进行实验 在...压力之下 wipe out enjoy worldwide popularity educate sb. on sth. probe into sth. consist of... in the meanwhile be exposed to sth. at a time run low experiment with sth. under pressure from... Human beings are faced with serious 1._____________ (environment) problems, which lead scientists to consider moving to Mars 2._________ the environment is less hostile than 3.__________ of other planets. Mars 4.______________(fascinate) people since ancient times and relevant movies also gain much 5.__________(popular). Spacecraft and robots have been sent to explore Mars since the 1960s, encouraging more 6._________(country) to plan manned missions. There is no doubt that humankind 7.___________(draw) towards Mars despite some challenges, 8._______ human settlement of Mars is still decades away. We have to admit that 9.__________(protect) our earth is the most urgent step right now. We need to take much better care of 10._____ (we) own planet. environmental where that has fascinated popularity countries is drawn but protecting our Activity 7 Revision Complete the summary. the Mars Desert Research Station(火星沙漠研究站）in the Utah desert of the US Mars Village（火星村）in North-west China's Qinghai Province The Martian Lavf61.7.100 Lavf52.84.0 Lavf59.27.100 Packed by Bilibili XCoder v2.0.2 Lavf58.41.100 $$