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

B5U6 Developing ideas There are _______ planets in the ______ system. eight solar Quiz on planets 2 1. Clue 1: It is mostly made of gas. Clue 2: It has a set of rings. Clue 3: It is the second largest planet in the solar system. 3 1. Clue 1: It is the hottest planet. Clue 2: It is named after the Roman Goddess of love. Clue 3: It has similar size as earth. 475 degrees Celsius 4 1. Clue 2: One day on it is about 24 hours. Clue 3: China became the second nation to ever land on it with Tianwen-1 misson. Clue 1: It is the second smallest planet. The Zhurong Rover of Tianwen-1 mission 5 1. Clue 2: Its name means “the ground”. Clue 3: It’s our home planet. Clue 1: It is the only one with liquid water. 6 Climate change Weapons of mass destruction Limited resources Environmental pollution Which is the biggest one? ... Risks to our home planet Work in pairs. Decide the most severe risk facing the life on Earth now and give your reasons. 7 Pre-reading Based on the title and pictures, brainstorm a few questions that you hope the passage will answer. Possible answers: Plan B: What does "Plan B" refer to? What is plan A? Scientific Evidence: What scientific discoveries have been made about Mars that could support the idea of life there? Challenges: What are the main challenges humans would face if they tried to live on Mars? Future Plans: Are there any current or planned missions to Mars that aim to explore its potential for sustaining life? Comparison: How does Mars compare to Earth in terms of environment, resources, and habitability? 8 Reading Read para.1-2 and answer the questions: 1. What’s the greatest risk to life on earth now? 2. What’s our Plan A and Plan B? 3. Why is Mars the most likely choice for this Plan B? 1. What’s the greatest risk to life on earth now? 2. What’s our Plan A and Plan B? 3. Why is Mars the most likely choice for this Plan B? ________________________have _________ as the greatest risk to life on Earth from _______________. taken over nuclear missiles Para.1-2: Risks and solutions Plan A：Scientists are thinking of ways to lower the risk, such as _________ coal and oil _____ forms of renewable energy. Plan B: __________________ to see if we could live on them. Environmental problems replacing with Explore other planets Mars is relatively close to Earth and has a less hostile environment than that of other planets. 10 How far have we gone in exploring Mars? Para.2: Martian exploration These examples are mentioned to___________________________. show that our interest in Martian exploration is greater than ever before Mars Village in North-west China’s Qinghai Province Mars Desert Research Station Para.3-4: Efforts/achievements in Martian exploration Read Para. 3-4 and list our efforts/achievements in exploring Mars. Since the 1960s, we have been sending unmanned spacecraft to Mars. (para.3) …space agencies of various countries are planning manned missions to Mars…(para.3) Staying alive ...will not be impossible. (para.4) The experiment…did provide us with a better understanding of how humans might be able to live on another planet. (para.4) Scientists have succeeded in growing plants in an environment similar to that on Mars. (para.4) Should we give up our plan A? For now, human settlement of Mars is still decades away. Para.5 Home planet protection Right now, it’s the only one we have! Making inferences Choose the statements that can be inferred from the passage. 1 Humans have yet not visited Mars. 2 People want to go to Mars on holiday. 3 There are plants growing on Mars. 4 The greatest to life on Earth used to be nuclear missiles. 5 One day, humans will have to go and live on another planet. 6 Our Plan A includes developing renewable energy resources. 7 The Biosphere 2 experiment ended in failure. Activity 4 inferred from para. 3 inferred from para. 4 inferred from para. 1 inferred from para. 1 to form opinions and draw conclusions based on given information 16 Making inferences How do we identify an inference question? “According to the passage, we can reasonably infer…” “Based on the passage, it could be suggested that…” “Which of the following statements is best supported by the passage?” “The passage suggests that this primary problem…” “The author seems to imply that…” infer, imply, suggest, support... 17 01 03 02 Hunt for Clues Put details together Identify an Inference Question infer/imply/suggest/indicate… (vocabulary, logic, structure.) Making inferences 18 Practice: What is the speaker implying? four and a half billion years need, depend on fed and starved species greater than human ocean, soil, stream, forest action -- fate What key words have you got? Anything that has been given to us can be taken away. Take care of this beautiful planet before it’s too late. Human is so weak and small compared with nature. We are not prepared for losing this planet at all. Some call me Nature. Others call me mother Nature. I’ve been here for 4.5 billion years, 22,500 times longer than you. I don’t really need people. But people need me. Yes, your future depend on me. When I thrive, you thrive. When I falter, you falter, or worse. But I’ve been here for aeons. I’ve fed species greater than you, and I have starved species greater than you. My oceans. My soil. My flowing streams. My forests. They all can take you, or leave you. How you choose to live each day, regard or disregard me, doesn’t really matter to me, one way or the other. Your actions will determine your fate. Not mine. I am Nature. I will go on. I am prepared to evolve. Are you? Falter: declie衰退 Aeons：千万年 Regard or disregard 凝视还是漠视 22 Think and share Can you think of a “Plan C” to save people from the problems on earth? 2. What theme do the two passages in this unit have in common? On what aspects does each passage focus? Think and share 2. What theme do the two passages in this unit have in common? On what aspects does each passage focus? The two passages share the theme of protecting our living environments. The first passage focuses on balancing nature and urban development, and the need for harmony between humans and animals. The second passage focuses on our need to protect Earth even if we intend to settle on other places such as Mars in future. Language points – Para. 1 In the 1960s and 1970s, the greatest fear was _______ 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. 表语从句，在句子中充当表语，表语从句常用的引导词是 that, what, which, who, how, whether, if 等。 麻烦的是我把信给弄丢了。 The trouble is that I have lost the letter. 这就是我能为你做的。 This is what I can do for you. that 当表语从句不缺成分时，可选用引导词 that； 当表语从句缺少主语、宾语或表语时，用what 引导表语从句。 25 表语从句练习 The reason is _______ she got up late this morning. This is _______ she has always done for this school. Next month is _______ the project will be launched. The point is _______ can be done to stop this accident from happening again. This is exactly _______ she is absent from school these days. that what when what why 26 Language points – Para. 1-2 彻底摧毁；消灭 按下按钮 接任成为对生命最大的威胁 地球上；世界上 降低风险 用可再生能源取代煤炭和石油   在全世界范围内受欢迎 在某事上对某人予以教育 wipe out at the push of a button take over as the greatest risk to life on Earth lower the risk replace coal and oil with forms of renewable energy enjoy worldwide popularity educate sb. on sth. on earth 究竟；到底 27 Language points – Para. 3 一直在向……发射无人飞船 环绕星球运行 令人惊叹的照片 stun vt. 他在这件事上的观点让我很震惊。 His view on this matter stunned me greatly. stunned adj. 在峰顶看到的景色使他们惊叹不已。 They were stunned by the view from the summit. have been sending unmanned (adj.) spacecraft to orbit the planet stunning (adj.) images 使震惊（或惊愕）；给（某人）以深刻印象 震惊的；惊讶的；惊叹的 28 Language points – Para. 4 Staying alive will be a daily challenge, but as proved by the Biosphere 2 experiment, not impossible. 生存将是每天的挑战，但正如“生物圈2号”实验所证明的，并非不可能。 被设计用……运行 为我们提供了更好的理解 成功做成 be designed to function with provide us with a better understanding of succeed in doing 29 Language points – Para. 5 For now, human settlement of Mars is decades away. 就目前而言，人类在火星定居还需要几十年的时间。 与此同时 对……有可怕的影响 照顾好 in the meantime have a terrible effect on take good care of 30 Writing a survival story Read the story and answer the questions. 1 Where is the person in the story? The person in the story is on Mars. 2 What difficulties is he facing? He has to keep himself safe from the deadly radiation outside. And he is facing the lack of water, oxygen and food. 3 What has he already done to stay alive? He has resumed communication with the base. He has discovered an underground ice deposit to get water, and produce oxygen with the water. 4 What will he do next? He will work out how to farm on Mars and grow plants with seeds. Activity 6 31 Language points – P94 It’s been a week since the other astronauts ______ (leave) Mars and ______ (go) back to Earth, accidentally leaving me here alone. 撇下……一个人；不管；别碰 与……失去联系 与基地恢复联系 It will be eight months _______ a rescue mission arrives from Earth. 保护我免受致命的辐射 由……驱动 一个核电站 使……安全，免受 暴露在，接触 依次，逐一，每次 leave… alone lose contact with resume communication with the base protect me from the deadly radiation is powered by a nuclear plant keep sb. safe from sth. exposure to at a time left went before 32 Language points – P94 地下冰沉积物 deposit n. a layer of a substance that has formed naturally underground （地下自然形成的）沉积物，沉积层 勘测工具 某人存货不足 某物快用完 缺乏……；离……不远 如果电能供应能够稳住 an underground ice deposit survey tools sb. run low sth. run low be short of if the electricity supply holds, … 33 Homework & Teaching plans Lavf58.45.100 $$