UNIT 6 Section Ⅲ Developing ideas & Presenting ideas（课件PPT）-【精讲精练】2025-2026学年高中英语选择性必修第二册（外研版）

该高中英语课件围绕“生存”主题语境，以“火星探索作为地球生存备选方案”为核心，涵盖词汇（如Plan B、renewable energy）、语法（定语从句、状语从句等）及语篇理解（火星探索的挑战与实验）。课堂导入通过对比20世纪核威胁与当下环境问题，结合《后天》《火星救援》等情境，连接已知环境问题与未知火星探索，搭建学习支架。 其亮点在于融合语言能力与思维品质培养，通过“读文清障-语篇理解-核心知识”递进设计，如分析生物圈2号实验时，既落实“consist of”等词汇及强调句语法，又引导学生辩证思考火星定居可行性与地球保护重要性。采用情境教学与分层练习，学生能提升语言运用和逻辑思维能力，教师可借助系统模块高效落实教学目标。

UNIT 6　Survival 主题语境——人与自然之生存 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival Section Ⅲ　Developing ideas & Presenting ideas 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 目 录 01 CONTENTS 07 读文清障·篇章助读 课时作业·知能达标 02 基础梳理·新知落实 03 语篇理解·要点领悟 04 核心知识·关键能力 05 随堂演练·巩固提升 06 进阶提升·写作微练 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 读文清障·篇章助读 01 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 基础梳理·新知落实 02 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival wipe nuclear orbit agency trunk infer astronaut consist 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival advanced terrifying expose dust 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival wipe out consist of in the meantime 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival has an environment less hostile than that of other planets in an environment similar to that on Mars There is no doubt that 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival While the Moon can be reached within days do reach Mars safely did provide us with a better understanding of 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 语篇理解·要点领悟 03 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 核心知识·关键能力 04 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival of with of in Life consists of/is made up of/ is composed of not only sunshine but also hard times 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival exposed exposed which will offer you good opportunities to be exposed to/expose yourself to Chinese culture 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival it those ones one that 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival that where There is no doubt that 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival do know does hope I will take part in did be excited as well as proud 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 随堂演练·巩固提升 05 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival the human race at the push of a button lower the risk renewable energy prepare for the worst terrifying scene as early as... 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival a closed space for now end in failure 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival exposed advanced There is no doubt that much fresher than that 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival did like playing football 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 进阶提升·写作微练 06 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival As we have our own space station right now，I believe that in the future，Chinese people will surely step further into deep space. With the support of space professionals and painstaking training，they have the confidence，determination and ability to accomplish this mission. 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 课时作业·知能达标 点击进入Word 07 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival 谢谢观看 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 6　Survival Plan B①：Life on Mars? In the 1960s and 1970s，the greatest fear was that the human race，and possibly all advanced life forms② on the planet，could be wiped out③ by nuclear missiles④，just at the push of a button⑤.Today，however，environmental problems have taken over as the greatest risk to⑥ life on Earth.Scientists are thinking of ways to lower this risk⑦，such as replacing coal and oil with⑧ forms of renewable energy⑨.But they are also preparing for the worst: what can we do if the terrifying scenes⑩ in films such as The Day After Tomorrow happen in real life? What is our Plan B for Earth? One option⑪ is [1]to explore other planets to see if we could live on them．The most likely choice is Mars，[2]which is relatively close to Earth and has an environment less hostile⑫ than that of other planets．Mars has fascinated⑬ people since ancient times，and today our interest in Martian exploration⑭ is greater than ever before.Films such as The Martian enjoy worldwide popularity.More governments and organisations are making efforts to⑮ 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. [1]“to explore other planets”是动词不定式短语作表语；“to see...on them”为动词不定式短语作目的状语，其中if引导宾语从句，作see的宾语。 [2]此处是which引导的非限制性定语从句，which在从句中作主语；其中that指代上文中的environment。 Since the 1960s，we have been sending unmanned spacecraft⑯ to Mars.Our probes⑰ have orbited⑱ the planet，sending back valuable data and stunning images⑲.Our robots have explored the Martian surface，testing the soil and searching for resources，water and signs of life.[3]Encouraged by discoveries over the years，space agencies⑳ of various countries are planning manned missions to Mars that could take place within the next 25 years. [3]本句是主从复合句。“Encouraged...over the years”为过去分词短语作状语，encourage与其逻辑主语space agencies of various countries之间为动宾关系；关系代词that引导定语从句，修饰先行词manned missions to Mars。 [4]There is no doubt that humankind is drawn㉑ towards Mars，with dreams of making it our second home.However，sending people there will require㉒all the skill，courage and intelligence of the human race.[5]While the Moon can be reached within days，it would take months to reach Mars，travelling through dangerous solar radiation㉓. And even if the first settlers㉔ 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 Biosphere㉕ 2 experiment，not impossible.As early as the 1980s，scientists were building Biosphere 2 in the Arizona desert.[6]It consisted of㉖ a closed space in which people，animals and plants could live together.The “closed” concept meant that the space was designed to function㉗ 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 definitely㉘ is a big step forward. [4]本句中that引导同位语从句，解释说明doubt；“with...home”为介词短语作状语，其中包含“make＋宾语＋宾语补足语”结构。 [5]本句中While引导让步状语从句，意为“虽然，尽管”；“travelling through dangerous solar radiation”为现在分词短语作伴随状语。 [6]本句中“in which...together”是“介词＋关系代词”引导的定语从句，修饰先行词a closed space。 For now，human settlement of Mars is still decades away.In the meantime㉙，scientific research shows that the planet Earth is getting warmer.This change is being caused by human activity and is having a terrible effect on㉚ 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! ①Plan B n.[sing.](第一方案不可行的情况下使用的)第二方案，次选方案 ②advanced/lower life forms高级/低级的生命形式 advanced adj.高级的；先进的 ③wipe out彻底摧毁，消灭 ④nuclear missiles核导弹 nuclear adj.核武器的 ⑤at the push of a button字面意思为“按一下按钮(用于强调机器容易操作)”，可引申为“轻而易举地”。 You can't expect to get everything you need at the push of a button. 你不能指望轻松地得到自己需要的一切。 ⑥the risk to...对……的风险 ⑦lower this risk降低这种风险 lower vt.减少，降低 ⑧replace...with/by...用……替代…… replace vt.用……替换，以……接替 ⑨renewable energy可再生能源 ⑩terrifying scenes令人恐惧的场景 terrifying adj.极其可怕的，骇人听闻的 terrify vt.使惊吓，使恐惧 ⑪option n.[C，U]可选择的事物；选择 have no option but to do sth没有选择只能做某事 ⑫hostile adj.(生长环境)恶劣的 hostile conditions不利的环境 ⑬fascinate vt.& vi.深深吸引，迷住 ⑭Martian exploration火星探测 ⑮make efforts to do sth努力做某事 ⑯unmanned spacecraft无人驾驶宇宙飞船 manned spacecraft 载人宇宙飞船 manned missions载人任务 ⑰probe n.[C](不载人)航天探测器，宇宙探测航天器 ⑱orbit v.环绕……运行 ⑲stunning images令人惊奇的图像 stunning adj.极具吸引力的；令人惊奇的 ⑳space agencies航天局 agency n.机构；(尤指政府内的)局，部，处 ㉑draw vt.[熟词生义] 吸引，使感兴趣 ㉒require vt.需要，依靠，依赖 ㉓solar radiation太阳辐射 ㉔settler n.[C]移民，殖民者 [词链] settle vi.定居→settlement n.[U]移民；[C]定居点→settler n.[C]移民，殖民者 ㉕biosphere n.[sing.]生物圈 ㉖consist of由……构成，由……组成 consist v.组成 ㉗function [熟词生义] vi.起作用，正常工作，运转 ㉘definitely adv.肯定；没问题；当然；确实 ㉙in the meantime在此期间，与此同时 ㉚have a(n)...effect on...对……有……影响 第二方案：移民火星？ 在20世纪60和70年代，最大的恐惧就是只要按一下按钮，人类以及或许地球上所有高级的生命形式都可能会被核导弹消灭。然而，如今环境问题已经取而代之，成为地球生命的最大威胁。科学家们正在想办法来降低这种风险，比如以可再生能源替代煤和石油。但是他们也在为最坏的情况做准备：如果像《后天》等电影里的恐怖场景发生在现实生活当中，我们能做什么？为了地球，我们的第二方案是什么？ 一种选择是探索其他星球，看看人类能否在那里生存。可能性最大的选择是火星，它离地球相对较近，环境也没有其他星球那么恶劣。自古以来，火星就令无数人着迷，如今我们对火星探测的兴趣比以往任何时候都要强烈，《火星救援》这样的电影在世界各地广受欢迎。更多的政府和组织正在努力教育公众了解这颗红色星球，譬如美国犹他州荒漠中的火星沙漠研究站和中国西北部青海省的火星村。 自20世纪60年代以来，我们不断地向火星发送无人驾驶宇宙飞船。我们的航天探测器围绕火星运行，传回了宝贵的数据和令人惊叹的图像。我们的机器人已探索火星的表面，测试土壤，寻找资源、水和生命迹象。受到这些年的发现的鼓舞，许多国家的航天局正在制订在未来25年内进行载人火星任务的计划。 毫无疑问，人类对火星充满兴趣，梦想着把它变成我们的第二个家园。不过，将人们送上火星需要人类全部的技能、勇气和智慧。虽然月球几天之内就可以到达，但是到达火星需用几个月的时间，要途经危险的太阳辐射。即使第一批移民者确实能够安全抵达火星，他们也可能永远无法返回地球。生存将是日常挑战，不过，正如生物圈2号实验所证实的那样，(外星生存)并非不可能实现。早在20世纪80年代，科学家们就在亚利桑那州的沙漠中建造了生物圈2号。它由一个封闭的空间组成，人、动物和植物可以在其中共同生活。“封闭”这个概念意味着这个空间被设计用来完全依靠内部的氧气、食物和水运作，不借助外界任何东西。虽然这项为期两年的实验并未取得成功，但它确实让我们更好地明白了人类如何能够在另一个星球上生活。最近，科学家们在类似火星的环境中成功种植了多种植物。这无疑是一个巨大的进步。 现在距离人类在火星定居还要几十年的时间。与此同时，科学研究表明，地球正在变暖。这种变化正由人类活动引起，并且正对生物圈有着严重影响。在最终能够在另一星球上生活之前，我们需要更好地照顾地球。它是我们现在唯一拥有的家园！ Ⅰ.重点词汇 核心单词 1．____ v.擦，拭，揩 2．_______ adj.核武器的 3．_____ v.环绕……运行 4．______ n. 机构；(尤指政府内的)局，部，处 5．_______ v.组成 6．_____ v.推断，推定 7．_________ n.宇航员，太空人 8．_____ n.树干 拓展单词 9．________ adj.高级的；先进的→advance v.& n.前进；进展 10．__________ adj.极其可怕的，骇人听闻的→terrified adj.非常害怕的；极度恐慌的→terrify vt.使惊吓，使恐惧 11．______ v.使暴露(于险境)→exposure n.暴露 12．____ n.沙土，尘土→dusty adj.布满灰尘的 Ⅱ.重点短语 1．________ 彻底摧毁，消灭 2．__________由……构成；由……组成 3．_______________在此期间；与此同时 Ⅲ.重点句式 1．that用作替代词，指代上文提到的名词 (1)The most likely choice is Mars，which is relatively close to Earth and __________________________________________________(环境也没有其他星球那么恶劣). (2)More recently，scientists have succeeded in growing a variety of plants ___________________________________(在类似火星的环境中). 2．“There is no doubt that...”意为“毫无疑问……” ____________________(毫无疑问) humankind is drawn towards Mars，with dreams of making it our second home. 3．while引导让步状语从句 _______________________________________(虽然月球几天之内就可以到达)，it would take months to reach Mars，travelling through dangerous solar radiation. 4．do/does/did＋动词原形 (1)And even if the first settlers ____________________(确实能够安全抵达火星)，they may not be able to return to Earth—ever. (2)Although the two-year experiment was not a success，it _________________ _______________________(确实让我们更好地明白了) how humans might be able to live on another planet. Read the passage carefully and then choose the best answer. 1．What does Plan B mean in the text? A．Replacing coal and oil with renewable energy. B．Exploring other planets，such as Mars，to live on. C．Educating the public on the knowledge of space. D．Using robots to search for new resources. 2．According to the passage，what is most dangerous to life on our planet? A．Nuclear missiles. B．Environmental issues. C．Fossil fuels. D．Terrifying scenes in films. 3．Why is the Biosphere 2 experiment mentioned in paragraph 4? A．To show the success we have made in exploring space. B．To remind us the difficulty of staying alive on Mars. C．To inform us of what is required living on Mars. D．To indicate living on Mars is possible. 4．What's the author's attitude towards Plan B? A．Optimistic. B．Objective. C．Skeptical. D．Indifferent. 答案　1～4　BBDA [核心词汇·练透] (1)consist in　在于；存在于 consist with　与……一致；符合；并存 (2)be made up of　由……组成 be composed of　由……组成 (教材原句)It consisted of a closed space in which people，animals and plants could live together. 它由一个封闭的空间组成，人、动物和植物可以在其中共同生活。 [练通]——单句语法填空/ 完成句子 (1)These field trips could consist __ a day at the beach or exploring the Natural Museum.(2025·全国二卷) (2)Life mainly consists __ happiness and sorrow while happiness consists __ struggle.Remember that your ideal life doesn't always consist ____ the reality. (3)生活中不仅充满阳光而且困难重重。面对困难，我们应该勇敢。 ______________________________________________________________________．We should be brave when faced with difficulties.(续写佳句之主旨升华) expose...to...　使……暴露于……；使……接触…… be exposed to...　暴露于…… (经典例句)Travelling abroad exposes children to different languages and cultures. 去国外旅行会使孩子们接触到不同的语言和文化。 [练通]——单句语法填空/ 完成句子 (1)Take care not to keep your children _______(expose) to the bad books，net and magazines. (2)Long ________ (expose) to noisy surroundings may result in some physical and mental problems. (3)在中国期间，我强烈建议你参加一些传统的文化活动，这会给你提供接触中国文化的好机会。 During your stay in China，I strongly recommend that you take part in some traditional cultural activities，____________________________________________ __________________________________________．(应用文佳句之建议信) [重点句型·通关] 这两句中的that分别替代前面提到的environment，以避免重复。 (1)that表特指，替代上文出现的同类的单数可数名词或不可数名词，相当于“the＋单数名词/不可数名词”；those表特指，替代上文出现的复数名词，相当于“the＋复数名词”； (2)it表特指，用来指代上文提到的同一个事物，可替代单数名词或不可数名词； (3)one表泛指，替代上文出现的同类的单数可数名词，相当于“a/an＋单数名词”；替代复数名词时使用ones。 (1)(教材原句)The most likely choice is Mars，which is relatively close to Earth and has an environment less hostile than that of other planets. 可能性最大的选择是火星，它离地球相对较近，环境也没有其他星球那么恶劣。 (2)(教材原句)More recently，scientists have succeeded in growing a variety of plants in an environment similar to that on Mars. 最近，科学家们在类似火星的环境中成功种植了多种植物。 [练通]——选词填空(that/those/it/one/ones) (1)They bought a house，but they need to clean __ before they can move in next week. (2)At our factory there are a few machines similar to _____ described in this magazine. (3)My brother gave me many valuable presents，____ that I had never seen. (4)Mr.Zhang prefers a restaurant in a small town to ___ in so large a city as Beijing. (5)Though its GDP ranks second in the world，China remains a developing country with its average family income far below ____ of Western developed countries. 句型“There is no doubt that...”中的that引导同位语从句，用来说明doubt的具体内容。 (1)同位语从句通常用that，whether，what，which，when，where，why，how等词引导，常放在hope，wish，idea，news，fact，promise，opinion，suggestion，advice，truth，evidence，problem等抽象名词后面，说明该名词的具体内容； (2)有时同位语从句可以不紧跟在被说明的名词后面，而被别的词隔开。 (教材原句)There is no doubt that humankind is drawn towards Mars，with dreams of making it our second home. 毫无疑问，人类对火星充满兴趣，梦想着把它变成我们的第二个家园。 [练通]——单句语法填空/ 完成句子 (1)The notice came around two in the afternoon ____ the meeting would be postponed because of heavy rain. (2)We haven't yet settled the question _____ we are going to spend our summer vacation. (3)毫无疑问，剪纸是中国传统文化之一，凝聚了数千年来中国人民的智慧和创造力。 ______________________ paper-cutting is one of the traditional Chinese cultures，embodying the wisdom and creativity of the Chinese people over thousands of years.(应用文写作之传统文化) “do/does/did＋动词原形”构成强调句，意为“确实，的确”，用来加强谓语动词的语气，但必须符合以下条件： (1)句子是肯定句； (2)句子的时态是一般现在时或一般过去时； (3)只能用来强调谓语动词，若强调主语、宾语、表语、状语等，则应用“It is/was...that/who...”进行强调。 (1)(教材原句)And even if the first settlers do reach Mars safely，they may not be able to return to Earth—ever. 即使第一批移民者确实能够安全抵达火星，他们也可能永远无法返回地球。 (2)(教材原句)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. 虽然这项为期两年的实验并未取得成功，但它确实让我们更好地明白了人类如何能够在另一个星球上生活。 [练通]——完成句子 (1)(北师必修一U1)事实上，我的确知道我有时需要强迫自己不上网，特别是因为现实生活也可以一样有趣。 Actually，I _______ I need to drag myself away from the online world sometimes，especially because real life can be just as interesting. (2)老师的确希望我参加下周举行的演讲比赛。 The teacher _____________________________ the speech contest to be held next week. (3)在成人礼上，我们都的确很自豪和兴奋，同时，觉得有了一种社会责任感。 At the coming-of-age ceremony，all of us ____________________________，and at the same time，felt a sense of social responsibility.(应用文写作之活动介绍) Ⅰ.教材语块必备 1．______________人类 2．_______________________按一下按钮 3．______________降低风险 4．________________可再生能源 5．_____________________做最坏的打算 6．________________令人恐怖的场景 7．______________早在…… 8．______________一个封闭的空间 9．_______目前；暂时 10．______________以失败告终 Ⅱ.单词拼写/完成句子 1．Don't forget to wear a mask，because being _______ (暴露)to frequent haze does great harm to your health. 2．With the help of the ________ (先进的) technology，we completed the task ahead of time. 3．毫无疑问，他们在这件事上同意你的观点。 ______________________ they agree with you on this matter. 4．我要搬到农村去，因为那里的空气比城市里的清新得多。 I'm moving to the countryside because the air there is ______________________ in the city. 5．我现在很少锻炼，但我上初中时的确喜欢踢足球。 I don't take much exercise now，but I ______________________ when I was in junior middle school. 太空探索 Ⅰ.常用词汇 课文词汇 1．explore other planets探索其他星球 2．send unmanned spacecraft to Mars向火星发射无人飞船 3．orbit the planet绕行星轨道运行 4．send back valuable data and stunning images发回了宝贵的数据和令人惊叹的图像 5．explore the Martian surface探索火星表面 6．live on another planet生活在另一个星球上 补充词汇 7．scientific research科学探索 8．explore the unknown探索未知 9．space station空间站 Ⅱ.常用句型 课本原句 1．Scientists are thinking of ways to lower this risk，such as replacing coal and oil with forms of renewable energy. 科学家们正在思考降低这一风险的方法，例如用各种可再生能源替代煤炭和石油。 2．One option is to explore other planets to see if we could live on them. 一种选择是探索其他星球，看看我们是否能在上面生活。 3．Our robots have explored the Martian surface，testing the soil and searching for resources，water and signs of life. 我们的机器人已经探索了火星表面，测试了土壤并且在寻找资源、水和生命的迹象。 4．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. 受到多年来这些发现的鼓舞，各国航天机构正计划在未来 25 年内进行载人飞船登陆火星的任务。 5．Until we are finally able to live on another planet，we need to take much better care of our own. 在我们最终能够生活在另一个星球上之前，我们需要更好地保护好我们自己的星球。 其他表达 6．Astronaut Wang Yaping expressed the hope that the live class from Tiangong could guide more young people to look up at the stars and plant the seeds of “loving science，pursuing dreams and exploring the unknown” in their hearts. 航天员王亚平表示，希望“天宫”的直播课能引导更多的年轻人仰望星空，并在他们的心中播下“热爱科学、追求梦想、探索未知”的种子。 7．As China's national space lab，the space station Tiangong is expected to play a unique role in encouraging the public，especially the youth，to explore space and carry forward the scientific spirit. 作为中国的国家空间实验室，“天宫”空间站有望在鼓励公众，特别是年轻人，探索太空和弘扬科学精神方面发挥其独特的作用。 Ⅲ.写作微练 1．现在我们有了自己的空间站，我相信在未来，中国人一定会进一步深入太空。 __________________________________________________________________________________________________________________ 2．在航天专业人员的支持和辛苦的训练下，他们有信心、决心和能力来完成这项任务。 ___________________________________________________________________________________________________________________________ $