U3 Period 4 Using Language-【优化探究】2025-2026学年新教材高中英语选择性必修第四册同步导学案配套PPT课件（人教版）

选择性必修第四册 UNIT 3　SEA EXPLORATION Period 4　Using Language 内容索引 NEIRONGSUOYIN 细读文本 落实要素 单元写作 能力提升 细读文本 落实要素 Part 1　教材原文助读   Text 1 When people talk of exploring the sea more，they usually mean exploiting① it. Sea exploration has caused many problems and will continue to cause more. ①exploit/Ik'splɔIt/vt.开发，开拓；开采；利用；剥削 文本1 人们在谈论扩大海洋勘探时，通常指的是海洋开发。海洋勘探已经造成了许多问题，未来将带来更多问题。 More exploration means more pollution. The Deepwater Horizon spilled② over 200 million gallons of oil into the sea in 2010. Plastic pollution is also bad，killing many birds and fish，and has even been found in our tap water. 句中killing many birds and fish是现在分词短语作结果状语。 ②spill v．(使)溢出，流出；(东西)倒出，洒落 扩大海洋勘探意味着污染会更严重。2010年，“深水地平线”钻井平台泄漏了2亿多加仑的原油到海水中。塑料污染问题也很严重，它造成许多鸟类和鱼类死亡，甚至在我们使用的自来水中也发现了塑料污染。 Mining for resources is very damaging③，especially in the Arctic.Because of climate change，there is less ice now，which means we can look for more fossil fuels④ further north. But if we burn these，the ice will melt more and this negative⑤ cycle will continue. Climate change is warning us that something is very wrong. 句中mining for resources是动名词短语作主语。 句中which引导非限制性定语从句。 ③damaging adj.有破坏性的，损害的 ④fossil fuels 矿物燃料 ⑤negative adj.负的；消极的；否定的 开采资源会严重破坏环境，尤其是在北极地区。由于气候变化，现在北极的冰越来越少，这意味着我们可以到更靠北的地方寻找更多的化石燃料。但是如果燃烧这些燃料，北极的冰会融化得更多，这个恶性循环就会持续下去。气候变化正在警示我们，事态已经十分严峻。 Overfishing is another problem. Whales and dolphins are also hunted for their meat or for so－called research. Although this was banned in 1982，some countries are still “murdering⑥” these intelligent creatures without mercy⑦. ⑥murder/'mɜːdə(r)/vt.谋杀；凶杀；毁坏 n．谋杀；凶杀 ⑦without mercy 毫不留情地 mercy/'mɜːsi/n.仁慈；宽恕；恩惠 过度捕捞是另一个问题。有人捕杀鲸鱼和海豚以获取它们的肉或用于所谓的研究。虽然这在1982年就已被禁止了，但一些国家仍然毫不留情地“谋杀”这些聪明的生物。 The sea is home to life，not human beings' possessions⑧. It is huge，but it is more sensitive than we think. If we do not protect it，future generations will not forgive us. ⑧possession/pə'zeʃn/n. [usually pl.]个人财产；拥有；控制 海洋是生命的家园，而不是人类的所有物。海洋宽广辽阔，但它比我们想象的更敏感脆弱。如果我们不保护它，子孙后代是不会原谅我们的。 Text 2 To truly understand our planet，we must explore the oceans which cover most of it. Opponents⑨may be concerned，but sea exploration is important for our future. For example，scientific research ships can help address⑩ important issues such as climate change. We need to understand what is happening to our planet so that we can take action⑪. Therefore，more research is necessary. 句中to truly understand our planet是不定式短语作目的状语。 句中so that引导目的状语从句。 ⑨opponent/ə'pəʊnənt/n.对手；反对者；敌手；竞争者 ⑩address n．地址；所在地vt.写(收信人)姓名和地址；设法解决 ⑪take action 采取行动 文本2 为了真正了解我们的星球，我们必须探索覆盖了地球表面绝大部分面积的海洋。反对者可能会担心(环境问题)，但海洋探索对我们的未来很重要。例如，科考船可以帮助我们解决诸如气候变化等重要问题。我们需要了解我们的星球正在发生什么，这样我们才能采取行动。因此，我们有必要开展更多的研究。 Understanding more about the sea will also help us manage its resources better. Logging⑫ new species will improve our understanding of life on the earth. It may help us discover new medicines，as well as new sources of food and energy. Accessing⑬ the deep ocean may also help us to predict events such as earthquakes. 句中understanding more about the sea是动名词短语作主语。 ⑫log/lɒɡ；NAmE lɔːɡ/vt.把……载入正式记录；记录n.正式记录；日志；原木 ⑬access n．通道；进入；机会；权利 v．到达；进入；使用；存取(电脑文档) 更多地了解海洋也有助于我们更好地管理海洋资源。记录新物种将增强我们对地球上的生命的了解。这可以帮助我们发现新的药物，以及新的食物和能源。探索深海还可能帮助我们预测地震等自然灾害。 The population of the world is growing and we need new resources for future development. There are probably vast amounts of resources under the sea and ice，not just oil and gas but also valuable minerals. not just... but (also)...不仅……而且…… 世界人口正不断增长，我们需要新的资源来促进未来的发展。海底和冰层下可能蕴藏着丰富的资源，不仅有原油和天然气，还有珍贵的矿产。 Of course，there are still environmental risks. However，these should be balanced with economic needs. Hopefully，as technology improves，we may have more options⑭ for managing this balance. 句中as引导时间状语从句，意为“随着……”。 ⑭option n．选项；选择权 当然，环境风险仍然存在。但是，这些风险应该与经济需求相平衡。随着技术的进步，我们有望拥有更多的选择来管理这种平衡。 Part 2　语篇研析 Activity 1　文章架构 1．Read the two texts and match the main idea of each paragraph. A.Sea exploration can help us much. B．Sea exploration causes problems. C．More exploration means more pollution. D．Mining for resources damages much. E．Overfishing also causes problems. F．The sea is not human beings' possessions. G．Sea exploration is necessary. H．The balance between environmental risks and economic needs. I.Sea exploration means more resources. Para.1　___；Para.2　___；Para.3　__；Para.4　___； Para.5　___；Para.6　___；Para.7　__；Para.8　__；Para.9　___ B C D E F G A I H 2．What's the main idea of the two texts? A．The risks about sea exploration. B．The benefits about sea exploration. C．The necessities and risks about sea exploration. D．The balance between sea exploration and protection. 答案：C 3．What is the text type of the two texts? A．Narration (记叙文). B．Exposition (说明文). C．Practical writing (应用文). D．Argumentation (议论文). 答案：D Activity 2　细节把握 1．How is Text 1 developed? A．By listing evidence.　　 B．In time order. C．By showing procedure. D．By making comparisons. 答案：A 2．According to Text 2，by exploring sea we can NOT ． A．handle important problems such as climate change B．record new creatures C．prevent earthquakes D．discover new resources 答案：C 3．What should we do to protect the environment according to the two texts? A．To exploit the sea more. B．To look for more fossil fuels in the Arctic. C．To hunt whales and dolphins to earn more money. D．To balance the environmental risks with our economic needs. 答案：D Activity 3　增分靓句 佳句临摹 1．教材原文：Plastic pollution is also bad，killing many birds and fish，and has even been found in our tap water.(现在分词短语作结果状语) 仿写：洪水袭击了村庄，道路受损，难以运送物资。 ______________________________________________________________________________________ A flood has struck the villages，and the roads have been damaged，making it difficult to deliver supplies. 2．教材原文：Hopefully，as technology improves，we may have more options for managing this balance.(as引导的时间状语从句) 仿写：(2023·全国乙卷)随着时间的流逝，她越来越认为自己能够参加伦敦奥运会并且获胜。 ____________________________________________________________________________________ As time went by，she thought more and more that she could make the London Games—and win. 单元写作 能力提升 Part 1　单元写作任务：写一篇关于海洋探索的议论文     本单元的写作任务是辩论性议论文。议论文以说理为主要表达方式，针对某个问题、某种现象或某个事件进行分析、评论，从而剖析事物，论述事理，发表见解，提出主张。 [篇章结构] [常用表达] 开头句(介绍讨论的主题)： 1．We had a discussion about whether it is necessary to... 2．We've had a survey on... 3．I'm writing to tell you about a discussion we have had about... 过渡句： 1．Opinions are divided on this issue. 2．Different people，however，have different opinions/think quite differently on this matter. 介绍正方观点： 1．45% of the students hold the view that...For one thing...For another thing... 2．60% of the students are for the idea. 介绍反方观点： On the contrary/However/As the old saying goes，each coin has two sides.Nearly half of the students think that...On one hand...on the other hand... [增分靓句] 1．The opinions on whether to further explore the ocean vary from person to person. 关于是否进一步探索海洋的意见因人而异。 2．Our class had a heated discussion about the phenomenon.Opinions are mainly divided into two groups. 我们班对这种现象进行了热烈的讨论，主要有两种观点。 3．Some people support/are in favour of ocean exploration because rich resources in the ocean may help solve the problem of energy shortages. 一些人支持海洋勘探，因为海洋丰富的资源可以帮助解决能源短缺的问题。 4．Through ocean exploration, we can know more about the ocean and better understand the reason why the environment changes. 通过海洋探索，我们可以更多地了解海洋，更好地了解环境变化的原因。 5．However, some people hold a different opinion.They think that human's overfishing may not only cause pollution but also destroy the deep－sea ecosystem. 然而，一些人持有不同的观点。他们认为人类的过度捕捞不仅会造成污染，还会破坏深海生态系统。 6．Personally speaking, there are both good effects and bad effects caused by ocean exploration. 就我个人而言，海洋探索既有好的影响也有坏的影响。 7．As far as I'm concerned, moderate ocean exploration is worth investing because it can inspire humans to find new energy. 在我看来，适度的海洋勘探是值得投资的，因为它可以激励人类去发现新的能源。 假定你是李华，学校即将举行以“Is It Necessary for Humans to Explore Oceans？”为题的英语作文比赛。请按照下列要求写一篇80词左右的议论文，要点如下： 1．使海洋可持续发展； 2．了解海洋环境； 3．更好地了解气候。 Is It Necessary for Humans to Explore Oceans? ________________________________________________________________________________________________________________ [审题谋篇] 第一步　明确要求 该写作属于________，故要用第________人称来写；时态用____________。 第二步　确定段落 本篇作文可以从以下几个方面入手： Para.1：说明讨论的话题——人类有必要进行海洋探索； Para.2：说明观点及理由； Para.3：表明自己的观点，得出结论。 议论文 一、三 一般现在时 第三步　核心词汇 1．对……有必要 ________________ 2．出现 ________________ 3．资源 ________________ 4．跟踪 ____________ 5．影响我们的生活 ________________ be essential for emerge resource keep track of　 affect our life 第四步　句式升级 1．It can establish the basic information needed to better understand environmental change.It helps scientists to solve current situations.It helps scientists to predict the future situations that may emerge. →It can establish the basic information needed to better understand environmental change, ____________________________________ ___________________________________________________．(非限制性定语从句) which helps scientists to solve both current situations and to predict the future situations that may emerge 2．The climate changes happen to the ocean.It can help us keep track of the climate changes and what might affect our life. →It can help us keep track of the climate changes ______________________ and what might affect our life.(定语从句) that happen to the ocean [连句成篇] Is It Necessary for Humans to Explore Oceans? In my view, it is essential for humans to explore oceans. Firstly, it can establish the basic information needed to better understand environmental change, which helps scientists to solve both current situations and to predict the future situations that may emerge.Moreover, it can also give us knowledge about what is available in oceans, how the life forms live, and find out how humans can survive down there or make good use of the depth's resources, because the ocean can be one of the resources for us to rely on to fulfill the needs such as food and energy.Moreover, it can help us keep track of the climate changes that happen to the ocean and what might affect our life. In a word, ocean exploration will be of great benefit to humans. [亮点点评] 该范文结构完整，作者首先明确提出了作者的观点：“In my view, it is essential for humans to explore oceans.”然后作者从不同角度详细阐述探索海洋的重要性； 最后文章以“In a word, ocean exploration will be of great benefit to humans.”作为结尾，简洁地总结了全文观点。要点齐全，语言规范地道。句式上，作者巧妙地使用了非限制性定语从句、状语从句、并列句等高级句式，亮点频出，表达形式多样。总之，这篇作文在结构、语言和句式上都表现得相当不错，能够清晰地传达作者的观点和理由。 假定你是某校的宣传委员李华，应邀为学校网站英文版写一篇有关海洋生物保护的文章，请根据以下要点写一篇短文。 1．海洋受污染的现状； 2．保护海洋的重要性。 注意：1.词数80左右； 2．可适当增加细节，以使文章连贯。 ________________________________________________________________________________________________________________ [参考范文] The Importance of Protecting Our Oceans As we all know, there are varieties of resources under the sea.However, the past ten years has witnessed that some creatures have died out.Therefore, marine pollution has been greatly concerned by the whole world. On the one hand, we must make people realize the importance of protecting the ocean.As a matter of fact, to protect the ocean is to protect human beings.On the other hand, the government should take immediate measures to keep the balance of nature.In no way should we abandon protecting the environment.Only by raising people's awareness of protecting the environment and making great efforts to prevent pollution can the problem be solved. Part 2　读后续写日积月累 Ⅰ.单元词汇汇总——与探索有关的单元词汇 名词(短语) tale, profession, mixture, laptop, coverage, press conference, capsule, possession 动词(短语) set sail, extend, negotiate, behold, withdraw, bond, applaud, exploit, log 形容词/副词 manned, underwater, meanwhile 介词短语 in a league of one's own, in hand Ⅱ.扣点描述常用句式 1．Future life is waiting for us to imagine and explore, so we should devote ourselves to it. 2．Below the ocean's surface is a mysterious world that remains largely unexplored and there is still much to be discovered.If you are interested in the sea, work hard and equip yourselves with advanced knowledge. 3．There is a great possibility that the moon will be our tourist spot in the near future. $$