Unit 4 Space Exploration Reading for Writing 课件-2025-2026学年高中英语人教版（2019）必修第三册

Unit 4 Space Exploration Reading for Writing 新人教版必修第三册 By the end of this unit, you will be able to: 1. Learn some knowledge about space exploration and understand the passage and know the structure of the argumentative writing. 2. Write an argumentative essay with the certain topic space exploration through imitation and practice. 3. Gain a sense of national pride and be inspired by our country’s scientific achievements in space exploration. Learning objectives: Lead-in What do you think of space exploration? Is it worth spending so much time and money? Or is it a waste of time and money? Yes No Arguments FOR Space Exploration Scientific Advancement Answering fundamental questions about our universe, the origins of life, and our own planet. Technological Innovation Spinoffs like GPS, medical imaging, prosthetics, and water purification systems improve life on Earth. Economic Growth The global space economy is worth over $574 billion, creating millions of high-skilled jobs. Yes 1.7.2013 Let's start with the arguments in favor of space exploration. First, it's a powerhouse for scientific discovery. Missions like the James Webb Telescope are rewriting astronomy books. Second, the technology we develop for space often comes back to help us here on Earth. Think about GPS in your phone or medical imaging that saves lives—many of these started as space projects. Third, it's a huge economic driver, creating jobs and fueling innovation. Fourth, looking far ahead, becoming a multi-planetary species could be crucial for our survival. And finally, it's inspiring! It makes us dream big and encourages young people to study science and engineering. ‹#› Arguments AGAINST Space Exploration Prohibitive Cost A single Mars mission costs $10-30B, while the ISS exceeded $150B. These are astronomical sums that could be allocated elsewhere. Opportunity Cost: Earth Priorities Funds could address urgent issues like global poverty (est. $175B/year), healthcare access, and climate change mitigation. Risks & Ethical Concerns • Human risk to astronauts & orbital debris threats. • Planetary protection & ethical debates over resource exploitation rights. No 1.7.2013 Now, let's consider the other side of the debate. The most obvious argument is the cost. We're talking about billions and billions of dollars. Critics ask: couldn't this money be better spent? For example, the cost of one Mars mission could make a huge difference in the fight against global poverty. This is called the 'opportunity cost'—what are we giving up by choosing space? Additionally, space exploration is risky for the astronauts involved and creates problems like space junk. There are also ethical questions: should we be contaminating other planets, and who gets to own the resources we find out there? These are all valid concerns that we must take seriously. ‹#› THE KEY QUESTION Can we afford NOT to explore space? Let's discuss. 1.7.2013 So, after hearing both sides, where do you stand? It's clear that space exploration is not a simple waste of time and money, but it's also not without its significant costs and ethical challenges. The debate forces us to think about our priorities as a society. The key question might not be "can we afford to explore space?" but rather, "can we afford *not* to?" Abandoning space could mean giving up on future technologies, scientific breakthroughs, and the long-term security of our species. Now, I'd like to open the floor for discussion. What do you think? Is the pursuit of the stars worth the investment, or should we focus our efforts closer to home? ‹#› IS EXPLORING SPACE A WASTE OF TIME AND MONEY? Reading Read the argumentative essay about space exploration. Countries around the globe are spending billions of dollars and lots of time on various space missions, whether to Mars or other planets much further away. Some people argue that we should stop wasting time and money exploring space. Instead, we should feed the world’s poor and find immediate solutions to other problems, such as pollution and fatal diseases. However, others feel this is a shallow view which fails to realise how exploring space helps us. 世界各国正在花费数十亿美元和大量时间进行各种太空任务，无论是去火星还是更远的其他星球。一些人认为我们应该停止浪费时间和金钱探索太空。相反，我们应该为世界上的穷人提供食物，并找到其他问题的直接解决方案，如污染和致命疾病。然而，其他人认为这是一种肤浅的观点，没有意识到探索太空如何帮助我们。 n. 地球；世界；地球仪 Spend time/money doing sth waste time/money doing sth vt. & vi. 论证；争辩；争论 Solution to…解决办法 adj. 致命的；灾难性的 adj. 肤浅的；浅的 没能做某事 Why are some people against space exploration? Because they think it is a waste of time and money, and that we should feed the world’s poor and find immediate solutions to other problems, such as pollution and fatal diseases, instead. Firstly, exploring space has already made a difference in the fight against world hunger. It has directly resulted in the many satellites that now orbit Earth. A number of the satellites record data on land and weather patterns. Then the data is transmitted to scientists on Earth. After careful analysis, the scientists can provide useful recommendations and advice for farmers. As a result, space-based science has helped farming in its efforts to grow enough food to feed Earth’s increasing population. 导致；造成 n. 模式；图案；模范 Provide sth for sb/provide sb with sth n. （对事物的）分析；分析结果 所以；结果（是） To do 不定式作定语修饰food 首先，探索太空已经在与世界饥饿的斗争中发挥了作用。这直接导致了现在许多卫星围绕地球运行。许多卫星记录陆地和天气模式的数据。然后数据被传送给地球上的科学家。经过仔细分析，科学家可以为农民提供有用的建议和意见。因此，基于空间的科学帮助农业努力生产足够的食物来养活地球上不断增长的人口。 Part 1 Introduction Part 2 Body Part 3 Conclusion 1.What kind of passage is it? A. Narration(记叙文) B. Exposition(说明文) C. Argumentation(议论文) 2. Can you divide it into three parts? What has space exploration done for food production? Satellites study land and weather patterns. These studies help farmers grow more crops and warn them about natural disasters before they occur exploring space fight against world hunger satellites data advice for farmers Secondly, space exploration has already promoted technological improvements that benefit us all. High-end products around the world are made to a higher standard now because of advanced technology which was first created to meet the requirements for space exploration. For example, space technologies have helped the research and development of different types of new material. They have also helped companies make better heart monitors and other machines that doctors regularly use. Today, space technologies are widely used in all kinds of industries, and everyday products, such as memory foam pillows and smartphone cameras, are changing our lives. 第二，空间探索已经促进了造福于我们所有人的技术进步。世界各地的高端产品现在都按照更高的标准制造，因为先进的技术最初是为了满足太空探索的要求而创造的。例如，空间技术帮助研究和开发不同类型的新材料。他们还帮助公司制造更好的心脏监测器和其他医生经常使用的机器。如今，空间技术被广泛应用于各种行业，日常用品，如记忆泡沫枕头和智能手机摄像头，正在改变我们的生活。 That引导的定语从句，that作主语 which引导的定语从句，指代technology，在从句中作主语 adj. 高端的 n. 智能手机 n. 泡沫橡胶；泡沫 n. 枕头 被广泛应用在。。。 n. 监视器；监测仪 vt. 监视；监测；监控 adv. 经常；定期地 How does space exploration benefit the products that people use nowadays? Advanced technology developed for space exploration has promoted technological improvements that benefit us all by allowing products to be made to a higher standard. high-end products exampls Argument 2 technological improvements Simpler words high-end products Examples Examples have helped the research and development of different types of new material have also helped companies make better heart monitors and other machines that doctors regularly use. are widely used in all kinds of industries, and everyday products ... specific industries - all kinds of industries memory foam pillows smartphone cameras Finally, sending astronauts into space has helped people to think about the world’s problems and even to find ways to solve them. Seeing pictures of our planet as an island in a black sea made people realise that our planet’s resources are limited. In order to provide for such a rapidly increasing population, scientists are trying to find other planets that could one day be our new home. The greatest attention at present is on Mars because it is closer to Earth. In the future, humans may live on both planets. 最后，把宇航员送上太空有助于人们思考世界上的问题，甚至找到解决问题的方法。看到我们的星球作为黑海中的一个岛屿的照片，人们意识到我们星球的资源是有限的。为了养活如此快速增长的人口，科学家们正试图寻找有朝一日可能成为我们新家的其他星球。目前最受关注的是火星，因为它离地球更近。在未来，人类可能生活在这两个星球上。 To do 不定式作目的状语 Try to do sth努力做某事 That引导的定语从句，指代planets，在从句中作主语 提供生活所需 n. 资源；财力；物力 动名词作主语 What did the pictures of Earth from space make people realise? They made people realise that our planet’s resources are limited. details Argument 3 Think about problems and find solutions Examples Read for structure and features Examples realise problems - find solutions Seeing pictures of our planet as an island in a black sea limited resources A rapidly increasing population find other planets that could one day be our new home. In closing, exploring space provides the world with many different benefits. Therefore, it should continue so as to provide new and better solutions to people’s short-term and long-term problems. 最后，探索太空给世界带来许多不同的好处。因此，它应该继续下去，以便为人们的短期和长期问题提供更新，更好的解决办法。 最后 动名词作主语 目的状语 Conclusion repeats the writer’s opinion Read the first paragraph and underline the different opinions about space exploration. Study the organisation and language features. Countries around the globe are spending billions of dollars and lots of time on various space missions, whether to Mars or other planets much further away. Some people argue that we should stop wasting time and money exploring space. Instead, we should feed the world’s poor and find immediate solutions to other problems, such as pollution and fatal diseases. However, others feel this is a shallow view which fails to realise how exploring space helps us. 2. Find the three topic sentences that summarise the writer’s arguments about space exploration. Study the organisation and language features. Firstly, exploring space has already made a difference in the fight against world hunger. It has directly resulted in the many satellites that now orbit Earth. A number of the satellites record data on land and weather patterns. Then the data is transmitted to scientists on Earth. After careful analysis, the scientists can provide useful recommendations and advice for farmers. As a result, space-based science has helped farming in its efforts to grow enough food to feed Earth’s increasing population. Secondly, space exploration has already promoted technological improvements that benefit us all. High-end products around the world are made to a higher standard now because of advanced technology which was first created to meet the requirements for space exploration. For example, space technologies have helped the research and development of different types of new material. They have also helped companies make better heart monitors and other machines that doctors regularly use. Today, space technologies are widely used in all kinds of industries, and everyday products, such as memory foam pillows and smartphone cameras, are changing our lives. Finally, sending astronauts into space has helped people to think about the world’s problems and even to find ways to solve them. Seeing pictures of our planet as an island in a black sea made people realise that our planet’s resources are limited. In order to provide for such a rapidly increasing population, scientists are trying to find other planets that could one day be our new home. The greatest attention at present is on Mars because it is closer to Earth. In the future, humans may live on both planets. 3. Underline the sentence that repeats the writer’s opinion in the last paragraph.. Study the organisation and language features. In closing, exploring space provides the world with many different benefits. Therefore, it should continue so as to provide new and better solutions to people’s short-term and long-term problems. Draw a mind map to show the structure of this argumentative essay. IS EXPLORING SPACE A WASTE OF TIME AND MONEY? Introduction Para. 1 different viewpoints Body Paras. 2-4 Para. 2 Argument 1 Supporting details / Evidence Para. 3 Argument 2 Supporting details / Evidence Para. 4 Argument 3 Supporting details / Evidence Conclusion Para. 5 Rephrasing the thesis statement Introduction Para. 1 different viewpoints Some people argue that we should ... However, others feel this is a shallow view which ... Body Paras. 2-4 Argument 1 Supporting details / Evidence Firstly, ... fight against world hunger ... satellites ... As a result, ... Argument 2 Supporting details / Evidence Secondly, ... promote technological improvements .. high-end products ... For example, ... Argument 2 Supporting details / Evidence Finally, ... think about the world’s problems ... realise that ... Conclusion Para. 5 Rephrasing the thesis statement In closing, .... Therefore, ... There are a lot of unsolved mysteries on Earth. So why are we going into space to explore? It is necessary to find a new home for people in space, as the resources on Earth will run out. I cannot understand spending all this money on expensive research and experiments when so many people need food. Exploring space encourages scientists to improve technology that can help people in other ways, too. For space exploration Against space exploration 1. Are these arguments for or against exploring space? Put them in the table below. Then add your own ideas and write your essay. B D A C 未解之谜 用完；耗尽 2. Exchange drafts with a partner. Use the checklist to give feedback on your partner’s draft. Does the introduction state the topic? Does the introduction express different opinions about the topic? Does the body give arguments with suitable supporting information? Does the closing express the writer’s opinion and end properly? Are there any grammar, spelling, or punctuation errors? 3. Get your draft back and revise it. Present your essay to the rest of the class. Reading for Writing 新人教必修三 Unit 4 Thank You ! $