Unit 6 课时4 Section B 1a-1e&reading plus （教学课件）英语新教材人教版九年级上册

该初中英语课件围绕“太空探索”主题，涵盖旅行者1号、光年、星际旅行的挑战与可能性等核心内容。通过视频导入激发兴趣，Pre-reading铺垫背景知识（如光年定义及纠正误解），While-reading以文本类型识别、段落匹配等搭建阅读支架，Post-reading结合小组讨论与听证会发言，衔接Reading Plus卫星知识，形成从输入到输出的完整学习脉络。 其亮点在于融合语言能力与思维品质培养，如While-reading通过问题回答提升信息获取能力，Post-reading的听证会发言活动要求用文本事实支持观点，锻炼批判性思维与口语表达。采用任务型教学，借助思维导图梳理关键信息，分层作业兼顾不同水平，助力学生提升综合语言运用能力，也为教师提供结构化教学方案，提高课堂效率。

你肯定听说过旅行者一号这个名字，它是人类有史以来飞得最远的探测器，在未来也可能是第一个飞出太阳系的探测器。1977年9月，旅行者一号发射升空。这是美国宇航局研制的一艘无人外太阳系空间探测器，重825点5000克，携带有宇宙射线传感器、等离子传感器、磁强剂、广角窄角电视摄像仪、红外干涉仪等11种科学仪器。在旅行者探测器探索任务出现前，科学家们计算，1977年正好赶上176年才会出现一次的行星特殊排列方式，那时木星、土星、天王星和海王星都将运行到助推的理想点，形成一个队列。这意味着发射探测器的话利用引力弹弓效应，加上少量的燃料用作航道修正，探测器可以一次造访多个行星。旅行者一号和二号就是为此设计的。拜这次机会所赐，两艘飞船只需要用上12年的时间就能造访四个行星，而不是一般的30年。时间旅行者一号借此机会完成了对木星和土星的探索任务，他的第一个拜访对象是太阳系内最大的行星木星。在飞行到距离木星35万公里的地方，旅行者一号拍下了木星的图像。这是人类第一次看到了真正的木星，之后我们又见到了木星上的大红斑。旅行者一号还在木卫一上拍摄到了火山熔岩流，这是人类首次在地球之外的天体上发现活火山。到了土星，虽然旅行者一号不是第一个造访土星的探测器，但它给地球发回了土星的高分辨率图像，探测了土星环的复杂结构，并且对土卫六泰坦的大气层进行了观测。NASA决定让旅行者一号靠近土卫六进行更深的探测。这一决定也改变了旅行者一号的命运，靠近土卫六让他获得了额外的盈利，最终使旅行者一号离开了黄道，终止了他的探索行星任务。接下来，旅行者一号离开了土星，沿着黄道平面35度角星际向蛇夫座进发，他的任务也被正式更名为星际探索任务。1990年，旅行者一号已经飞离地球60亿公里了。在情人节这天，科学家们突然心血来潮，让旅行者一号最后一次回望母亲，拍下了一张照片，并且传回了地球。照片里漆黑的宇宙中，地球只剩下一个淡蓝色的小点，仅占了0点一二个像素的大小，而就在这个小点上，大约70亿的地球人就生活在上面。旅行者一号是利用布的放射性能量来发电的，简单来说就是核电池，它可以用好几十年。不过根据科学家估算，旅行者一号的电力将在2020年消耗殆尽。目前旅行者一号与人类基本上处于半失联状态，我们将在2025年彻底失去它的信号，它仍然会继续向银河系中心前进，但不会向地球发回数据。这里我们要提一下，旅行者一号上还搭载了一份献给外太空生物的礼物。那是一张铜质磁盘唱片，上面包含了地球的位置、自然界的各种声音、人类的身体结构、生活场景等照片，还有55种语言录制的问候。即使过了11年，这张唱片的音质依然不变。旅行者一号不仅是一个探测器，它还是人类送到宇宙中的无声信使。截至2019年10月，旅行者一号距离太阳大约211亿公里，与地球的距离也十分遥远。地球上发出的信号要经过20个小时才能被旅行者一号接收到，而旅行者一号的回复也要经过20个小时回到地球。有很多人说旅行者一号已经飞出太阳系，其实并不然，它目前刚刚出了太阳层顶，要离开太阳系，还要穿过太阳系的最后一道屏障奥尔特云，以现在旅行者一号17公里每秒的飞行速度，抵达奥尔特云还需要300年，而穿越奥尔特云需要3万年，而旅行者一号要到达离地球最近的恒星系统也需要四万多年的时间。宇宙太大了，即使旅行者一号真的能安然无恙的穿越太阳系，达到别的恒星系统，我们这一代人可能也没有机会等到那一刻。那我们为什么源源不断地向太空发射探测器？或者说我们为什么还要去探索宇宙？康德曾经说过，在这个世界上有两样东西值得我们仰望终生，一个是我们头顶上的璀璨星空，一个是人们心中崇高的道德标准。正是因为宇宙所包含的无限可能性，得以让我们始终保持一颗热爱与敬畏去探索未知。也希望视频面前的每个你，能通过这些视频感受与欣赏到宇宙的浩瀚和伟大。 Section b how far can we go into space? Section b activity one, be read the title in the text quickly. Where would you find an article like . this reaching for the stars? Since the beginning . of . human history, people have looked up at the stars and wondered what they were like. Many ancient cultures believe that these points of light were from gods or other mysterious worlds. However, as science and technology developed, we learned the truth about stars. They are real places like our own sun, and they're farther away than anyone imagined. This raises the question, can we visit the stars one day? The man made object, which is travelled farthest from earth, is voyer won. This spacecraft was launched in one hundred seventy seven. In case for year jian is found by aliens life, a special record with sounds and pictures from earth is Carried on board. IT shows who we are and where we are from. By twenty twenty five, voyage one was over twenty five billion kilometers from earth. But that is still a long way from earth's second closest star, proximus and tory. That star is four point two light years away, about forty trillion kilometers. The chAllenge of visiting the stars gets even bigger for space flights with humans. The forest that any human has travelled in space is only about four hundred thousand kilometers to the far side of the moon. Time is a big problem at present, even a journey to the planet mars will take around six to nine months. What will the astronauts eat and drink during this period? And how about their health and safety? These problems grow when we talk about visiting another star. IT might take hundreds of thousands of years to get there. Scientists, however, believe that visiting the stars is not a completely wild dream. One idea is to have the astronauts sleep during their journey, like some animals do in winter. Another is to develop much faster spacecraft. While this is not possible right now with nations and scientists CoOperating with one another, there is hope that the necessary technology will be developed. Humans have photographed other galaxies, set foot on the moon and even successfully landed rovers on mars. IT seems likely that one day we will reach the stars. Unit 6 Beyond Earth 第四课时 Section B 1a-1e & Reading plus 课型：听说课 主讲人：XXX Pre-reading 02 While-reading 03 Lead-in 01 Post-reading & Reading Plus 04 CONTENTS Language points 06 Exercise 07 Summary 05 Homework 08 cb7c5ce8-4c1b-4a9a-b3c4-4365f841c3f0.source.default.zh-Hans 2 学习目标 通过1a的读前调查和1b的文体识别，感知科普说明文的基本特征和阅读策略；通过阅读，获取旅行者1号的关键信息（发射时间、携带物品、与地球的距离等），完成1d思维导图填空；概括文本的四个部分（引入→现状→挑战→展望），并用思维导图进行整合。 01 分析文本中数字数据的作用，判断星际旅行的主要挑战是什么；用自己的语言解释“light year”的含义，并说明旅行者1号携带特殊记录的原因；运用文本中的核心词汇和句型，复述人类探索星际的主要内容。 02 评价人类星际探索的价值和可行性，表达自己的观点（如“Do you think humans will ever visit another star?”）；联系自身，想象未来太空探索的可能性，并进行创造性表达。 03 通过本节课学习，学生能够： 01 Lead-in Watch a video What dose the video talk about? This spacecraft is called Voyager 1. Today, we are going to read about this and find out: Can humans ever visit the stars? Have you ever stared at stars at night and wondered what stars really are? Now, let's read the text and find out what challenges we face in reaching the stars! 02 Pre-reading Learn about the background information. n.宇宙飞船 adj. 神秘的；奇怪的 在船上/机上 Voyager 1 is a spacecraft. A special record is carried on board. Human beings try to explore the mysterious space. Learn about the background information. 光年 A light year is the distance light travels in one year. Where do you prefer to find information about space exploration? Choose the ones that are true for you. 1a A. Popular science magazines. B. Science fiction books. C. Online news. I like popular science magazines because they offer true scientific knowledge. I enjoy science fiction books. They are full of exciting imagination about space. Meanwhile, I check online news to tell the difference between real space facts and fictional stories. 1. What do you think the passage is about? Look at the title and the picture and predict. Reaching for the Stars It may talk about human dream of travelling to distant stars, our space exploration future and so on. 03 While-reading Read the title and the text quickly. Where would you find an article like this? 1b Identifying the text type Before you read, decide what kind of text it is. A sci-fi story（科幻故事） A popular science article（科普文章） A news report（新闻报道） Something else（其他） 1c Read again and match each paragraph with its main idea. Paragraph 1 A. Long distance space travel is difficult for humans. Paragraph 2 B. Humans have long been curious about the stars. Paragraph 3 C. In the future, it may be possible to visit a star. Paragraph 4 D. No spacecraft has travelled close to a star. Match the numbers with what they refer to. 1977 25 billion 4.2 400,000 6-9 Distance from Earth to Proxima Centauri (light years) Year Voyager 1 was launched Farthest distance a human has travelled (km) Distance Voyager 1 was from Earth by 2025 (km) Time for a journey to Mars (months) _________ _________ _________ _________ _________ 4.2 1977 400,000 25 billion 6-9 Complete the mind map with the information from the text. You can use your own words. 1d wondered truth 1977 record six to nine safety sleep develop Read the text and answer the questions. 1e They believed the lights were from gods or mysterious worlds. Because they lacked modern science to explain stars. What did some ancient cultures think about the stars? Why? Since the beginning of human history, people have looked up at the stars and wondered what they were like. Many ancient cultures believed that these points of light were from gods or other mysterious worlds. However, as science and technology developed, we learnt the truth about stars. They are real places like our own sun, and they are farther away than anyone imagined. This raises the question: Can we visit the stars one day? 1 Read the text and answer the questions. 1e A special record with Earth’s sounds and pictures. It is prepared in case alien life finds Voyager 1 and learns about humans. What is carried on board by Voyager 1? Why? The man-made object which has travelled farthest from Earth is Voyager 1. This spacecraft was launched in 1977. In case Voyager 1 is found by alien life, a special record with sounds and pictures from Earth is carried on board. It shows who we are and where we are from. By 2025, Voyager 1 was over 25 billion kilometres from Earth, but that is still a long way from Earth’s second-closest star, Proxima Centauri. That star is 4.2 light years away—about 40 trillion kilometres! 2 Read the text and answer the questions. 1e Humans have travelled to the far side of the moon, about 400,000 km. What is the farthest trip that a human has travelled from Earth? Do you know any details about it? The challenge of visiting the stars gets even bigger for space flights with humans. The farthest that any human has travelled in space is only about 400,000 kilometres, to the far side of the moon. Time is a big problem. At present, even a journey to the planet Mars will take around six to nine months. What will the astronauts eat and drink during this period? And how about their health and safety? These problems grow when we talk about visiting another star. It might take hundreds of thousands of years to get there! 3 Read the text and answer the questions. 1e Astronauts can sleep during the journey; scientists can develop much faster spacecraft. What are the two ideas for travelling to stars? Scientists, however, believe that visiting the stars is not a completely wild dream. One idea is to have the astronauts sleep during their journey, like some animals do in winter. Another is to develop much faster spacecraft. While this is not possible right now, with nations and scientists cooperating with one another, there is hope that the necessary technology will be developed. Humans have photographed other galaxies, set foot on the moon, and even successfully landed rovers on Mars. It seems likely that one day we will reach the stars. 4 Read the text and answer the questions. 1e Humans have photographed other galaxies, set foot on the moon and landed rovers on Mars. What space achievements has human beings made? Scientists, however, believe that visiting the stars is not a completely wild dream. One idea is to have the astronauts sleep during their journey, like some animals do in winter. Another is to develop much faster spacecraft. While this is not possible right now, with nations and scientists cooperating with one another, there is hope that the necessary technology will be developed. Humans have photographed other galaxies, set foot on the moon, and even successfully landed rovers on Mars. It seems likely that one day we will reach the stars. 4 04 Post-reading Discuss the questions. Find more information to support your answers. 5. What do you think about the future of space exploration? Space exploration will keep developing. New technology will be created, but we also need to protect Earth. Group work :听证会发言 Now it's 2040. You are at the UN hearing. Use what you learned from the article to support your opinion. Should humans spend money on interstellar travel? 步骤 内容 时间 Step 1 小组讨论：选择支持或反对星际旅行 30秒 Step 2 从文本中找出至少2个事实支持你的观点 1分钟 Step 3 撰写发言稿（使用模板） 1.5分钟 Step 4 准备发言（选一名代表或全组分工） 1分钟 Group work :听证会发言 🗣️ UN Hearing Speech Good morning, everyone. I am ______, a ______ (scientist / citizen / government official). Today, I want to talk about whether humans should explore interstellar travel. Fact 1: According to the article, ______. Fact 2: The article also says that ______. In my opinion, ______. Therefore, I believe we should / should not spend money on interstellar travel because ______. Thank you for listening. Make your report to the class. Reading plus All About Satellites In October 1957, people listening to radios around the world heard something no one had ever heard before. For three weeks, there was just “beep, beep, beep”. About one beep a second. Millions of people sat round their radios just listening for this beep. The beep itself was not all that amazing. The amazing thing was the place where it came from—space. The beep came from the world’s first man‑made satellite, Sputnik 1. Sputnik 1 was launched by the Soviet Union on 4 October 1957. It was round, made of metal, and more than twice as wide as a basketball. It weighed about 84 kilograms, travelled at 29,000 kilometres an hour, and took 96.2 minutes to circle Earth. Sputnik 1 stopped beeping when its radio battery died on 26 October, and it burnt up when it fell back to Earth on 4 January 1958. The launch of Sputnik 1 also began the age of satellites. The first satellites were used for research. Through them, we can better understand the world we live in. They also send back photographs that help us to make better maps of our world. Communication satellites were also soon developed. These allow TV and radio signals to be sent across oceans or to places thousands of kilometres away. This is how people can watch TV across continents and oceans. Weather satellites soon followed. These can tell us when a storm is coming or whether it will snow next week. One new kind of satellite that is now becoming more useful to the public is the positioning satellite. This satellite works with a highly complicated system, like the BDS (BeiDou Navigation Satellite System), which can tell us where our car or even our mobile phone is. It seems that there is no end to the possible uses of satellites. The only real limit to their use is our own imagination. Reading plus All About Satellites Read the text. Tick the uses of satellites that are mentioned. 1 □ as homes for people □ for research □ to make maps □ to grow plants □ to help us communicate □ to collect energy from the sun □ to help us know the weather □ to show the position of things on Earth √ √ √ √ √ √ √ √ Answer the questions. 2 Why was Sputnik 1 important? What happened to it in the end? What other types of satellites do you know? What are they used for? It was important because it was the world’s first man‑made satellite and it started the age of satellites. In the end, it burnt up when it fell back to Earth. We know communication satellites, weather satellites and positioning satellites. Communication satellites send TV and radio signals. Weather satellites tell us about storms and snow. Positioning satellites tell us where things are on Earth. 05 Summary 06 Language points Let's learn and take notes. mysterious / mɪˈstɪəriəs / adj. 神秘的；奇怪的 词性转换：名词 mystery（神秘；谜），副词 mysteriously（神秘地） 固定搭配：mysterious world（神秘世界），mysterious place（神秘之地） 用法：形容词，常用来形容未知或难以理解的事物。 辨析：mysterious 指“神秘的、难以解释的”；strange 指“奇怪的、不熟悉的”。 词 讲 练 Many ancient cultures believed that stars were from gods or other mysterious worlds.（许多古代文化认为星星来自神或其他神秘世界。） This ancient temple is full of mysterious stories.（这座古庙充满了神秘的故事。） 例 填空：The _________ (mystery) box was opened by the children. 翻译：太空对人类来说仍然很神秘。 mysterious Space is still mysterious to humans. Let's learn and take notes. cooperate / kəʊˈɒpəreɪt / v. 合作；协作 固定搭配：cooperate with（与……合作） 词性转换：名词 cooperation（合作），形容词 cooperative（合作的） 用法：不及物动词，常与 with 连用。 辨析：cooperate 强调“合作、配合”；collaborate 强调“共同协作（尤指创作或研究）”。 词 讲 练 There is hope that the necessary technology will be developed with nations cooperating with one another.（随着各国相互合作，必要的技术有望被开发出来。） Scientists from different countries cooperate on space research.（来自不同国家的科学家在太空研究上合作。） 例 填空：The two companies __________ (cooperate) with each other to build the space station. 翻译：我们希望与更多国家合作探索太空。 cooperated We hope to cooperate with more countries to explore space. Let's learn and take notes. imagination / ˌɪmædʒɪˈneɪʃn / n. 想象；想象力 词性转换：动词 imagine（想象），形容词 imaginative（富有想象力的） 固定搭配：use your imagination（发挥你的想象力），beyond imagination（超乎想象） 用法：不可数名词，指“想象力”。 辨析：imagination 指“想象力”；dream 指“梦想”。 词 讲 练 Human imagination has always been the driving force of space exploration.（人类的想象力一直是太空探索的动力。） It took a lot of imagination to picture life on another planet.（想象另一个星球上的生活需要很大的想象力。） 例 填空：Children have very rich ___________ (imagine). 翻译：发挥你的想象力，描述一下未来的太空旅行。 imagination Use your imagination to describe future space travel. Let's learn and take notes. expectation / ˌekspekˈteɪʃn / n. 期望；希望 词性转换：动词 expect（期望），形容词 expected（预期的），副词 unexpectedly（出乎意料地） 固定搭配：beyond expectation（超出预期），have high expectations of（对……期望很高） 用法：可数或不可数名词，常表示“期望或希望”。 辨析：expectation 指“对未来发生的期待”；hope 指“强烈的希望”。 词 讲 练 Our expectation is that one day we will reach the stars.（我们的期望是有朝一日能到达恒星。） The astronauts lived up to everyone's expectations.（宇航员们没有辜负所有人的期望。） 例 填空：The results were beyond our ____________ (expect). 翻译：人们对未来太空旅行寄予厚望。 expectations People have high expectations about future space travel. Let's learn and take notes. on board 短语 在船（或火车、飞机）上 用法：介词短语，常作状语或表语。 固定搭配：take on board（在机上/船上搭载），have...on board（有……在机上/船上） 辨析：on board 指“在交通工具上”；on the bus/train/plane 指“在具体某辆车/火车/飞机上”。 词 讲 练 In case Voyager 1 is found by alien life, a special record is carried on board.（以防旅行者1号被外星生命发现，飞船上携带了一张特别的唱片。） There are 200 passengers on board the spaceship.（飞船上有200名乘客。） 例 填空：The crew members are all _________ the ship. 翻译：他已经在飞机上了。 on board He is already on board the plane. 07 Exercise 一、选词填空。 Since ancient times, people have wondered about the (1) _________ stars. Some believed they came from (2) _________. We have sent a (3) _________ called Voyager 1. It is over 25 (4) _________ kilometres from Earth. It is far from our (5) _________. Many countries will (6) _________ to explore space. Scientists (7) _________ the spacecraft need to solve many problems. They have high (8) _________ that one day we will reach the stars. To think about life on other planets takes a lot of (9) _________. It may be difficult to (10) _________ other planets, but we will keep trying. mysterious god mysterious spacecraft on board billion cooperate galaxy imagination expectation set foot on gods spacecraft billion galaxy cooperate on board expectation imagination set foot on 1. Since the beginning of human history, people have looked up at the stars and wondered what they were like. ——从人类历史之初，人们就仰望星空，想知道星星是什么样的。 2. In case Voyager 1 is found by alien life, a special record with sounds and pictures from Earth is carried on board. ——以防旅行者1号被外星生命发现，飞船上携带了一张包含地球声音和图片的特别唱片。 3. It seems likely that one day we will reach the stars. ——似乎有一天我们将会到达恒星。 4. 各国正在合作探索太空。 ——Countries are cooperating to explore space. 5. 我们期望未来能够登陆火星。 ——We have expectations that we can land on Mars in the future. 二、翻译。 08 Homework 基础作业：抄写本课核心词汇（spacecraft, launch, on board, light year, trillion, challenge, mysterious）各3遍，并各造一个句子。 进阶作业：根据1d的思维导图，用完整的句子写出至少5个关于星际旅行的关键信息；写一段话（60-80词），表达你对星际旅行的看法。你是否支持人类探索星际？为什么？ 拓展作业：搜集资料，了解旅行者1号携带的“金唱片”（Golden Record）的更多信息（金唱片是什么；上面有什么内容；为什么要携带它；你的感受），制作一份英文海报或PPT，下节课进行展示。 Homework Thank you for listening! Lavf59.27.100 Packed by Bilibili XCoder v2.0.2 $