Unit 3 Period 5 课时练案 课文整体教学(Using Language)-【名师导航】2025-2026学年高中英语选择性必修第四册教师用书配套课件（人教版）

该高中英语课件围绕“海洋探索的利弊”主题，系统涵盖课文理解、阅读策略、词汇语法及写作训练，通过整体理解（文章大意）到细节分析（论证方法、词义猜测），再到多维探究和写作应用，搭建递进式学习支架，帮助学生构建主题知识脉络。 其亮点在于融合语言能力（一词多义、定语从句等语法训练）、思维品质（多维探究题引导批判思考）和学习能力（即学即练促进策略运用），如通过篇章结构分析法和语境化词汇教学，学生提升综合语言运用与问题解决能力，教师可借助结构化资料高效备课，聚焦核心素养培养。

UNIT 3　SEA EXPLORATION 主题语境 人与自然 —— 人类生存、社会发展与环境的关系 Period 5　课时练案 课文整体教学 (Using Language) √ Ⅰ．文章大意 What's the main idea of the texts? A．The importance of sea exploration． B．The disadvantages of sea exploration． C．The pros and cons of sea exploration． D．The advantages of sea exploration． Period 5　课时练案 课文整体教学(Using Language) Ⅱ．篇章结构 problems pollution Mining Overfishing protect important take action resources new resources economic needs Period 5　课时练案 课文整体教学(Using Language) 1．How does the first author support his topic? A．By listing facts． B．By giving examples． C．By making comparisons． D．By analysing problems． √ Period 5　课时练案 课文整体教学(Using Language) 2．What is the meaning of “negative cycle” in the third paragraph of Text 1? A．An incomplete link． B．One trouble leads to another that worsens the first． C．A damaged item． D．An idea that is not positive． √ Period 5　课时练案 课文整体教学(Using Language) 3．What is the opinion of the second author? A．The benefits of exploring oceans outweigh the risks． B．There are more disadvantages of sea exploration． C．There are no problems with sea exploration． D．People have successfully managed the balance between risks and economic needs． √ Period 5　课时练案 课文整体教学(Using Language) 4．What makes it necessary for us to explore the sea? A．The development of technology． B．The rising number of population． C．The valuable minerals under the sea． D．The damage caused by earthquakes． √ Period 5　课时练案 课文整体教学(Using Language) 1．What is your opinion about sea exploration? Do you agree with one argument more than the other? _______________________________________________________________ _______________________________________________________________ 2．Has your opinion changed after reading the two texts? Why or why not? _______________________________________________________________ _______________________________________________________________ [答案]　略 Period 5　课时练案 课文整体教学(Using Language) Ⅰ．一词多义/熟词生义 1．exploit vt．开发；利用；剥削 ①(教材原句)When people talk of exploring the sea more，they usually mean exploiting it． ____ ②We need to exploit solar energy to meet the increasing energy demands． ____ ③The factory owners were accused of exploiting the workers by making them work long hours． ____ 开发 利用 剥削 Period 5　课时练案 课文整体教学(Using Language) 2．directory n．名录；电话号码簿；(计算机文件或程序的)目录 ①(教材原句)They will be added to the directory so we can identify them in the future． ____ ②I found his phone number in the local business directory． __________ 3．All the people present at the meeting applaud my decision． ________ 4．When she was nearly out of the woods，a soft sound in the underbrush arrested her attention． ________ 名录 电话号码簿 vt．称赞 vt．吸引 Period 5　课时练案 课文整体教学(Using Language) Ⅱ．词块积累 1．___________________杀死很多鸟类和鱼类 2．____________________应对重要的问题 3．_____________________________________ 提升我们对地球上的生命的了解 4．__________________ 进入深海 5．___________________________ 与经济需求相平衡 kill many birds and fish address important issues improve our understanding of life on the earth access the deep ocean be balanced with economic needs Period 5　课时练案 课文整体教学(Using Language) Ⅲ．写作佳句 1．Sea exploration has caused many problems and will ______________ _____． 海洋勘探已经造成了许多问题，并将继续引发更多问题。 2．Although this was banned in 1982，some countries are still “murdering” these intelligent creatures _____________． 尽管这种行为在1982年就已禁止，但有的国家仍在无情地“谋杀”这些聪明的生物。 continue to cause without mercy more Period 5　课时练案 课文整体教学(Using Language) Ⅳ．长难语句 1．To truly understand our planet，we must explore the oceans which cover most of it． [分析]　本句是一个主从复合句。不定式短语To truly understand our planet作________，which引导____________从句，修饰the oceans。 [翻译]　 ____________________________________________________________ ______________ 目的状语 (限制性)定语 为了真正了解我们的星球，我们必须探索覆盖其表面大 部分的海洋。 Period 5　课时练案 课文整体教学(Using Language) 2．We need to understand what is happening to our planet so that we can take action． [分析]　本句是一个主从复合句。what引导____从句，作understand的宾语；so that引导________从句。 [翻译]　 _____________________________________________________________ __________ 宾语 目的状语 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。 Period 5　课时练案 课文整体教学(Using Language) Ⅴ．课文语法填空 Sea exploration has caused many 1．________(problem) and will continue to cause more．More exploration means more 2．_________ (pollute)．Oil is spilled into the sea．Plastic pollution and mining for resources are very 3．_______ (harm)．Overfishing is another problem．Whales and dolphins 4．__________________ (hunt) for so-called research at present．On the other hand，it is necessary to explore the oceans，5．_____ cover most of our planet．We need to understand problems pollution harmful are being hunted which Period 5　课时练案 课文整体教学(Using Language) 6．____ is happening to our planet so that we can take action．7．_____________ (understand) more about the sea will also help us manage 8．___ (it)resources better．9．____ the population of the world growing，we need new resources．The above factors 10．__________ (consider)，we should explore the sea without destroying it． what Understanding its With considered Period 5　课时练案 课文整体教学(Using Language) 1．(教材原句)Meanwhile，we also noted their location，so we can track their movements and plot their migration path． *meanwhile adv．与此同时；(比较两方面)对比之下 (1)for the meanwhile 　 一会儿；暂时 (2)meanwhile＝in the meanwhile＝in the meantime＝at the same time 在此期间，与此同时 (3)meanwhile 作为副词时，可以与but连用，意为“(虽然……)但是同时又……”，可以强调前后相反的两种对比的表述；和and 连用时，表示“同时”。 Period 5　课时练案 课文整体教学(Using Language) 即学即练 单句写作 ①我们需要一些新的窗帘，但这些暂时还可以用。 We need some new curtains，_____________________________． ②(应用文写作之建议信)压力可能严重损害你的健康，锻炼则可以减轻这些损害。 Stress can be extremely damaging to your health．Exercise，_________，can reduce its effects． but these will do for the meanwhile meanwhile Period 5　课时练案 课文整体教学(Using Language) ③我希望最终能上医学院。这期间我打算学化学。 I hope to go to medical school eventually．________________________ ____________________________，I am going to study chemistry． In the meanwhile/Meanwhile/ In the meantime/At the same time Period 5　课时练案 课文整体教学(Using Language) 2．(教材原句)Although this was banned in 1982，some countries are still “murdering”these intelligent creatures without mercy． *mercy n．仁慈；宽恕；恩惠(merciful adj．仁慈的；慈悲的；宽大的 merciless adj．残忍的；毫不怜悯的；无情的) (1)show mercy to/have mercy on 对……怜悯/宽恕 without mercy　　 残忍地；毫不留情地 at the mercy of...　 任由……摆布 (2)be merciful to 对……仁慈 Period 5　课时练案 课文整体教学(Using Language) 即学即练 单句语法填空/单句写作 ①He is generous and ________ (mercy) to those who are weaker than himself． ②To have mercy __ someone is at the heart of human kindness． ③Learning that many wild animals are being killed due to the _________ (mercy) human activities，I'm writing to offer you some suggestions． merciful on merciless Period 5　课时练案 课文整体教学(Using Language) ④We often find ourselves __ the mercy of situations beyond our control． ⑤大卫很可能会受到其他孩子的无情嘲笑，这会使他很痛苦。 It was likely that David _______________________________________ _____，which would cause him great pain． at would be made fun of by the other kids without mercy Period 5　课时练案 课文整体教学(Using Language) 3．(教材原句)The sea is home to life，not human beings' possessions． *possession n．[usually pl．]个人财产；拥有；控制(possess vt．拥有；具有；支配；控制) (1)in possession of　　　 具有；拥有 in the possession of　　 被……拥有；归……所有 take possession of　　 占有；拥有 (2)be possessed of　　　　 具有某种品质(或特征) Period 5　课时练案 课文整体教学(Using Language) [名师点津]　(1)in possession of表示主动，意为“拥有……；占有……”，主语通常为表示人的词语；in the possession of 表示被动，意为“为某人所有”，主语通常为表示物的词语。 (2)possession表示“个人财产”时，通常用复数；表示“具有，拥有”时，为不可数名词。 Period 5　课时练案 课文整体教学(Using Language) 即学即练 单句语法填空/单句写作 ①People lost their homes and all their ___________(possession) in the war． ②When can I take possession __ a car of my own? ③这所房子已被他们家族拥有好几代了。 The house ________________________ their family for generations． possessions of has been in the possession of Period 5　课时练案 课文整体教学(Using Language) ④(读后续写之心理描写)一想到他犯的愚蠢错误，一种羞愧感就笼罩着他。 At the thought of his foolish mistake，_________________________． ⑤(应用文写作之人物描写)她拥有一颗善良的心，总是乐意帮助那些身处困境中的人。 She ______________________________________，always ready to help those in trouble． a sense of shame possessed him is possessed of/is in possession of a kind heart Period 5　课时练案 课文整体教学(Using Language) 词汇 ①applaud vt．& vi．鼓掌 vt．称赞；赞赏 ②log vt．把……载入正式记录；记录 n．正式记录；日志；原木 ③arrest n．逮捕；拘留；中止 vt．逮捕；拘留；阻止 Period 5　课时练案 课文整体教学(Using Language) 微练 ①记者在笔记本里记录下了当天的事件。 The journalist _______________ of the day in his notebook． ②演员表演结束后，观众热烈鼓掌。 The audience _______________ when the actress finished her performance． ③警察在机场逮捕了犯罪嫌疑人。 The police ________________ at the airport． logged the events applauded loudly arrested the suspect Period 5　课时练案 课文整体教学(Using Language) 1．(教材原句)We need to understand what is happening to our planet so that we can take action． *so that引导目的状语从句 Period 5　课时练案 课文整体教学(Using Language) (1)so that从句中常常使用情态动词can/could，may/might，will/would等。 (2)so that引导的目的状语从句不能置于句首，但in order that引导的目的状语从句既可放在句首，也可放在主句之后。 (3)当so that或in order that引导的目的状语从句中的主语与主句的主语一致时，从句可变为so as to或in order to的动词不定式短语。 (4)so that也可以引导结果状语从句。 Period 5　课时练案 课文整体教学(Using Language) 即学即练 单句写作/一句多译 ①他建议儿子和周围的人交朋友，这样他就能很容易地适应新环境。 He advised his son to make friends with those around him ________________ _____________________________________________________________． ②大雨一连下了几个小时，以至于道路被淹了。 The heavy rain poured down for hours，____________________________． so that he could so that the roads became flooded adapt himself to the new surroundings easily Period 5　课时练案 课文整体教学(Using Language) ③学生被鼓励问问题，以便他们能更好地理解这门学科。 a．Students are encouraged to ask questions ______________________ _____________________________________．(so that/in order that) b．Students are encouraged to ask questions ______________________ ____________________________．(in order to/so as to) so that/in order that they in order to/so as to have a can have a better understanding of the subject better understanding of the subject Period 5　课时练案 课文整体教学(Using Language) 2．(教材原句)Understanding more about the sea will also help us manage its resources better． *动词-ing形式(短语)作主语 (1)动词-ing形式(短语)作主语往往表示经常性、习惯性的动作，谓语动词通常用单数形式。 (2)动词-ing形式(短语)作主语和不定式作主语一样，也可以用it 作形式主语，多见于某些形容词及名词之后。常见的能用于这种结构的形容词和名词有：good，no good，no use，useless等。 Period 5　课时练案 课文整体教学(Using Language) (3)当动词-ing形式(短语)有自己的逻辑主语时，可以在前面加上一个名词或代词的所有格，构成动词-ing形式的复合结构(这时，名词或代词的所有格作动词-ing形式的逻辑主语)。动词-ing形式的复合结构也可以在句中作主语。 即学即练 单句写作 ①传递善意和爱的确使这个世界成为一个更美丽的地方。 ______________________ did make the world a more beautiful place． Passing kindness and love Period 5　课时练案 课文整体教学(Using Language) ②读英文报上的英语文章对我有巨大的影响。 _________________________________________ has a great influence on me． ③放学后和朋友踢足球是缓解压力的好方法。 __________________________________ is a great way to relieve stress． Reading English articles in the English newspaper Playing football with friends after school Period 5　课时练案 课文整体教学(Using Language) ④我姐姐在比赛中的演唱是一场很棒的表演。 _______________________________ is a great performance． ⑤常言道：覆水难收。 As the saying goes，___________________________． My sister's singing in the competition it's no use crying over spilt milk Period 5　课时练案 课文整体教学(Using Language) ①exploit vt．开发；利用；剥削 ②horizon n．地平线 ③spill vt．& vi．(使)洒出；溢出 ④gallon n．加仑(容积单位，1英制加仑约等于4.5升) ⑤plastic n．塑料adj．塑料的 ⑥tap water 自来水 Period 5　课时练案 课文整体教学(Using Language) ⑦mine vt．& vi．开采 n．矿 ⑧resource n．资源 ⑨damaging adj．有害的；损害的 ⑩fossil fuel 化石燃料 ⑪negative cycle 负循环，恶性循环 ⑫overfishing n．过度捕捞 ⑬dolphin n．海豚 ⑭hunt vt．& vi．捕猎 ⑮so-called adj．所谓的 Period 5　课时练案 课文整体教学(Using Language) ⑯ban vt．禁止 ⑰murder vt．谋杀；凶杀；毁坏n．谋杀；凶杀 ⑱without mercy毫不留情 mercy n．仁慈；宽恕；恩惠 ⑲be home to是……的家园 ⑳possession n．个人财产；拥有；控制 ㉑sensitive adj．敏感的；易生气的 ㉒generation n．一代 ㉓forgive vt．& vi．原谅 Period 5　课时练案 课文整体教学(Using Language) ㉔planet n．行星 ㉕opponent n．反对者；对手；竞争者 ㉖concerned adj．担心的 ㉗issue n．问题 ㉘take action采取行动 ㉙therefore adv．因此 ㉚necessary adj．必需的 ㉛manage vt．& vi．管理 ㉜log vt．把……载入正式记录；记录n．正式记录；日志；原木 Period 5　课时练案 课文整体教学(Using Language) ㉝species n．种，物种 ㉞improve vt．& vi．改善；改进　 ㉟as well as 和；也 ㊱source n．来源 ㊲access vt．进入 ㊳predict vt．预言；预报 ㊴event n．事件 ㊵population n．人口 ㊶vast adj．巨大的 Period 5　课时练案 课文整体教学(Using Language) ㊷amount n．数量 ㊸valuable adj．宝贵的；很重要的 ㊹mineral n．矿物质 ㊺environmental adj．环境的 ㊻risk n．风险 ㊼be balanced with与……平衡 ㊽economic needs经济需求 ㊾hopefully adv．有希望地 ㊿technology n．技术 option n．选择 Period 5　课时练案 课文整体教学(Using Language) Text 1 When people talk of exploring the sea more，they usually mean exploiting① it．[1]Sea exploration has caused many problems and will continue to cause more． [1]本句中When引导时间状语从句。 Period 5　课时练案 课文整体教学(Using Language) More exploration means more pollution．The Deepwater Horizon② spilled③ over 200 million gallons④ of oil into the sea in 2010．Plastic⑤ pollution is also bad，killing many birds and fish[2]，and has even been found in our tap water⑥． [2]动词-ing形式短语作状语，表结果。 Period 5　课时练案 课文整体教学(Using Language) Mining⑦ for resources⑧ is very damaging⑨[3]，especially in the Arctic．Because of climate change，there is less ice now，which means we can look for more fossil fuels⑩ further north[4]．But if we burn these，the ice will melt more and this negative cycle⑪ will continue．[5] Climate change is warning us that something is very wrong． [3]此处动词-ing形式短语作句子的主语。 [4]which引导非限制性定语从句。 [5]本句包含一个if引导的条件状语从句，主句是一般将来时，从句用一般现在时表将来。 Period 5　课时练案 课文整体教学(Using Language) Overfishing⑫ is another problem．Whales and dolphins⑬ are also hunted⑭ for their meat or for so-called⑮ research．Although this was banned⑯ in 1982，some countries are still “murdering⑰” these intelligent creatures without mercy⑱． The sea is home to⑲ life，not human beings' possessions⑳．[6] It is huge，but it is more sensitive㉑ than we think[7]．If we do not protect it，future generations㉒ will not forgive㉓ us． [6]本句中not后面承前省略，相当于the sea is not human beings' possessions。 [7]此处than引导比较状语从句。 Period 5　课时练案 课文整体教学(Using Language) Text 2 To truly understand our planet㉔[8]，we must explore the oceans which cover most of it[9]．Opponents㉕ may be concerned㉖，but sea exploration is important for our future．For example，scientific research ships can help address important issues㉗ such as climate change[10]．We need to understand what is happening to our planet so that we can take action㉘[11]．Therefore㉙，more research is necessary㉚． Period 5　课时练案 课文整体教学(Using Language) [8]不定式短语作状语，表目的。 [9]which引导限制性定语从句，修饰先行词the oceans，句中的it指的是our planet。 [10]such as后接名词，意思是“例如，比如”。 [11]so that在这里引导目的状语从句。 Period 5　课时练案 课文整体教学(Using Language) Understanding more about the sea[12] will also help us manage㉛ its resources better．Logging㉜ new species㉝[13] will improve㉞ our understanding of life on the earth．It may help us discover new medicines，as well as㉟ new sources㊱ of food and energy．Accessing㊲ the deep ocean[14] may also help us to predict㊳ events㊴ such as earthquakes． [12]、[13]、[14]三处都是动词-ing形式短语作句子的主语。 Period 5　课时练案 课文整体教学(Using Language) [15]本句包含一个as引导的状语从句。 Period 5　课时练案 课文整体教学(Using Language) 文本1 人们在谈论扩大海洋勘探的时候，通常指的是海洋开发。海洋勘探已经造成了许多问题，并将继续引发更多问题。 扩大勘探意味着污染加剧。2010年“深水地平线”号钻井平台在海中溢出了两亿多加仑的石油。塑料污染也十分严重，导致许多鸟类和鱼类死亡，甚至在我们的自来水中也发现了塑料污染。 Period 5　课时练案 课文整体教学(Using Language) 资源开采极具破坏性，尤其是在北极地区。由于气候变化，现在冰川减少了，这意味着我们可以在更北的地方寻找更多的化石燃料。但是，如果我们烧尽这些燃料，冰川将融化得更多，这一恶性循环将持续下去。气候变化正警告我们情况不妙。 过度捕捞是另一个问题。鲸鱼和海豚也遭到捕杀，成为盘中美食或用于所谓的研究。尽管这种行为在1982年就已禁止，但有的国家仍在无情地“谋杀”这些聪明的生物。 海洋是生命的家园，而不是人类的私产。海洋广阔无垠，但比我们想象的更为敏感。如果我们不保护它，子孙后代将不会原谅我们。 Period 5　课时练案 课文整体教学(Using Language) 文本2 为了真正了解我们的星球，我们必须探索覆盖其表面大部分的海洋。反对者也许会忧心忡忡，但是海洋探索对我们的未来十分重要。例如，科学考察船可以帮助应对像气候变化这种重要的问题。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，有必要开展更多的研究。 深入了解海洋也有助于我们更好地管理其资源。记载新物种将提升我们对地球上的生命的了解。这可能还会帮助我们发现新的药物，以及新的食物和能源来源。深海探索还有可能会帮助我们预测地震等事件。 Period 5　课时练案 课文整体教学(Using Language) 世界人口正在不断增长，我们需要新的资源来维系未来的发展。海洋和冰川之下可能蕴藏着大量的资源，不仅仅是石油和天然气，还有珍贵的矿物。 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，我们有望会有更多的选择来管理这一平衡。 Period 5　课时练案 课文整体教学(Using Language) $