新人教高中英语选择性必修四Unit3SeaExplorationUsingLanguage公开课学案

选择性必修四Unit3REACHING OUT ACROSS THE SEAThink and DiscussI.What comes to your mind when you see the word“sea”?II.Do you know any stories about people and the sea?If so,share them with your partners.Comprehension CheckI.Choose the writing methods used in the following sentences.a.Explanationb.Figurec.Example1.Between1405and1433,seven large fleets sailed west on voyages oftrade andexploration.________2.African royal families sent gifts such as giraffes as gestures of friendship in re-turn for gold,silk,and spices.________3.The aim of this initiative is to encourage cooperation and trade across the his-toric Silk Roadareas,and strengthen the bonds between China and the rest of the world.________4.China has invested billions in systems and services along these routes...________5.The ancient sea routes travelled by Zheng He are being revisited with the21st CenturyMaritime Silk Road,which is part of the Belt and Road Initiative.________II.Match the events with their purposes or results.1.Merchants from different places met to negotiate trade deals.________2.The ancient sea routes are being revisited with the21st Century Maritime Silk Road.________3.China has invested billions in systems and services along these routes.________4.China has joined other nations on several expeditions.________5.There is an urgent need to study the Arctic.________a.To explore the Arctic.b.To encourage cooperation and trade across the historic Silk Road areas,and strengthen thebonds between China and the rest of the world.c.Raising more awareness of each other’s cultures.d.Greatly developing the whole area for the benefit of future trade and cultural ex-change.e.To understand climate change and its effects.III.Paraphrase the following sentences.1.Trade and curiosity have often formed the foundation of mankind’s greatest achieve-ments.___________________________________________2.These fleets were a sight to behold and were in a league of their own at that time.___________________________________________3.Although China withdrew from further expeditions after1433,these land andsea routesremained active channels between other cultures for centuries.___________________________________________Complete the SummaryChoose the right content from the box to complete the summary of the text. relationships,Silk Road,Belt and Road Initiative,west,Zheng He,1433,Columbus, climatechangeMarco Polo’s travels inspired Europeans to sail east,but sailors from the east sailed west longbefore1.________did.In ancient times,China’s silk travelled overland to India, the Middle Eastand Rome,along the2.________.There was also a trading route along the coast of the IndianOcean.Further trading allowed more exploration of the regions to the3.________of Chinaaccording to Du Huan’s Record of My Travels in the eighth ter,during the MingDynasty,seven great fleets under the command of4.________sailed west from the South ChinaSea,reaching the Red Sea and the east coast of Africa.Although such expeditions stopped after5.________,the found trade routes stayed open for centuries and have returned today with the21stCentury Maritime Silk Road,part of China’s6.________.Though Zheng He’s routes have beenwell-travelled,there are still places to explore and China has joined other coun-tries in exploringthe Arctic,important for understanding7.________.Hundreds of years later the need to reach outacross the sea to trade and improve8.________remains.(By Ray Cama)ProjectSurf online to know which countries are involved in the Belt and Road Initiative.答案Think and Discuss略Comprehension CheckI.1.b2.c3.a4.b5.aII.1.c2.b3.d4.a5.eIII.1.Trade and curiosity have long been the basis of mankind’s greatest achievements.2.The ships were an amazing sight and were ahead of theirtime.3.China stopped further expeditions after1433,but these land and sea routes contin-ued to be usedfor centuries afterwards. Complete the Summary1.Columbus2.Silk Road3.west4.Zheng He5.14336.Belt and Road Initiative7.climate change8.relationshipsProject 略。

一、根据首字母填写单词(单词拼写)1. The two brothers fought against each other for the p________of this house after their father died. （根据首字母单词拼写）2. Whether you come first or last, remember that at any sporting event, you face two o________ : your fellow competitors and yourself. (根据首字母单词拼写)3. We didn’t take p________ of the car until a few days after the auction.二、根据汉语意思填写单词(单词拼写)4. He was arrested for attempting to ________(谋杀)his wife. （根据汉语提示单词拼写）5. Go(围棋)is a board game for two players,in which the aim is to surround more territory than the ________(对手). (根据汉语提示单词拼写)6. ________ (反对者) of the policy are worried that it might have a negative effect on the economy. (根据汉语提示单词拼写)三、根据中英文提示填写单词(单词拼写)7. Henry won a gold watch from o________(对手) (根据中英文提示单词拼写)8. Each of these is a d______ (目录) representing a process in the system. (根据中英文提示填空)四、完成句子9. 戏剧结束时，大家都为她热烈鼓掌。

UNIT3 Sea ExplorationReading and Thinking第三单元REACHING OUT ACROSS THE SEA横跨大海Trade and curiosity have often formed the foundation of mankind’s greatest achievements. To complete the great map of the world was a strong passion for the people of early civilisations. Marco Polo’s tales inspired European explorers to search for sea routes from west to east. However，merchants and explorers from the East set sail from east to west many years before Columbus first did.贸易和好奇心经常是人类最伟大成就的基础。

完成这幅伟大的世界地图是早期文明人民的强烈热情。

马可波罗的故事启发了欧洲探险家寻找从西到东的海上航线。

然而，东部的商人和探险家比哥伦布早很多年从东向西航行。

In ancient times，silk from China found its way overland to India，the Middle East，and Rome，along what became known as the Silk Road. A trading route across the sea was also extended along the coasts of the Indian Ocean，centered around Ceylon（now Sri Lanka）. Here，merchants from China and many other places met to negotiate trade deals，which also led to more awareness of each other’s cultures. Over the centuries，further trading allowed more exploration of the regions to the west of China，as recorded in Du Huan’s Record of My Travels in the eighth century.在古代，中国的丝绸沿着丝绸之路陆路到达印度、中东和罗马。

新人教版高中英语选择性必修四单词知识点详解UNIT 3 SEA EXPLORATION1.tale / teɪl/ n. 故事；叙述a fairy /romantic tale 童话/爱情故事t ell the tales of one’s experience 讲述自己的经历2.merchant /ˈmɜːtʃənt/ n. 商人；批发商. adj. 海上货运的a merchant ship 商船3.set sail （for）起航；开航4.extend /ɪk'stend/ vt. 扩展；使伸长；延长Extend your left hand. 伸出你的左手。

an extended family 几代同堂的大家庭e xtend a warm welcome to … 表示热烈欢迎e xtend one’s thanks to 表达诚挚谢意extensive adj. 广阔的；大规模的；广泛的extensive reading/research 泛读/广泛的研究extensively adv. 大规模地；广泛地；全面地（形近）extent n. 程度；范围to …extent 到……程度上5.negotiate /nɪˈɡəʊʃieɪt/ vt. 商定；达成(协议). vi. 谈判;磋商；协商negotiate with sb 同某人商议；协商negotiate for 为……协商negotiate a deal/contract 达成交易/确立合同negotiation n. 协商；谈判negotiable adj. 可谈判的；可协商的6.fleet /fliːt/ n. 舰队；机群；车队7.behold / bɪˈhəʊld/ vt. (beheld, beheld) 看；看见be a sight/joy to behold 壮观的/赏心悦目的景象8.league /li:ɡ/n. 等级；水平；联合会；联赛the League of Nations 国际联盟the Communist Youth League of China 中国共产主义青年团a football league 足球联赛9.in a league of one’s own 独领风骚be in a different league 属于不同的级别be out of your league 超出你的能力be in league (with sb) （与某人）暗中合谋10.royal /ˈrɔɪəl/ adj. 皇家的；王室的；高贵的the royal family 王室；皇族a royal welcome 盛大的欢迎11.spice /spaɪs/ n. (调味)香料12.withdraw / wɪðˈdrɔ/ vi. & vt. (withdrew, withdrawn) (使)撤回；撤离withdraw money 提款withdraw an offer 撤回报价withdraw troops 撤军withdraw a remark 撤回评论withdrawal n. 收回；撤回；取款；脱瘾13.withdraw from 退出；撤回14.channel /ˈtʃænl/ n. 航道；海峡；频道make/cut a channel 开/挖水渠change/switch channels换台the Red channel 有需要报关物品的通道the Green channel 无需要报关物品的通道；绿色通道through the proper channels 通过正当的途径channel of communication 交流的平台v. 把（钱或精力）导向（某一特定目的）；引导channel into15.maritime /ˈmærɪtaɪm/ adj. 海的；海运的；海事的16.bond /bɒnd / n. 纽带；关系one’s word is their bond 一诺千金；言而有信a close/an emotional bond 紧密的联系/情感的纽带a strong lifelong between… 终生的深厚关系vt. & vi. 增强信任关系；使牢固结合bond with sb/sth 与……有关系17.in hand在手头；可供使用18.politics /ˈpɒlətɪks/ n. 政治；政治观点go into politics 从政19.profession /prəˈfeʃn/ n. 职业；行业by profession 作为职业enter/join a profession 加入行业profession 表示“某职业的全体人员；同行；同业”是可数的集合名词，作主语时，谓语动词可以用单数，也可以用复数。

SectionⅢUsingLanguage,AssessingYourProgress&VideoTime一、用适当的介词或副词填空1.The soup is too salty,so you’d better add some waterit.2.I have bad sight and it’s hard for me to tell thetwins .3.He was so cruel that he treated his employeesmercy.4.As a matter of fact,the pet dog is sensitive climate change.5.The storm left,having caused great damage the crops here.6.The police promised to look the case as soon as possible.7.As an adult,you should be responsible what you have done.8.All a sudden,right after the summer,she got married.二、用所给单词的适当形式填空1.Her son got (arrest),which made the woman extremely worried.2.As we know,Chinese food is famous for its wide(vary).3.When she was very young,she was taught to be(mercy) to the disabled.4.He stepped onto the stage and hugged one of his (opponent).5.The police are now in (possess) of new evidence.6.She hurried home,only (find) that her house had been broken into.7.The field (eoment belongs to an old farmer.8. (drink) a cup of coffee will refresh you aftera long journey.三、完成句子1.父亲在修剪草,与此同时母亲在种玫瑰。

UNIT 3 SEA EXPLORATION单元分析单元主题：人与自然-海洋探索单元内容分析本单元主题是人与自然，围绕海洋探索这一话题展开，通过介绍人类海洋探索的历史与意义，海上丝绸之路，我国海洋科考发展、海洋传说故事、海洋生物多样性、人类活动对海洋的影响、海洋环境保护、世界海洋日等内容，引导学生多角度、全方位地思考人类与海洋的关系，理解海洋探索对国家乃至全人类发展的重要性，树立人类命运共同体意识，认识到尊重自然、保护生态是可持续发展的必由之路。

以下为教材各部分教学内容简要分析及教学活动实施建议：1．Opening Page主题图呈现的是一位年轻人在海中潜水的情境。

在潜水者的周围，能看到美丽的鱼群和珊瑚等多种海洋生物，构成海洋生态圈的缩影。

海洋生态是美丽的，但也是脆弱的，需要人类有意识地保护。

主题图展示这个场景，旨在传递人与自然和谐相处的理念。

开篇页的引言“They（oceans）provide a breeding ground for life，connect the world and promote development.”，意思是“海洋孕育了生命、联通了世界、促进了发展”。

这是习近平总书记致“2019中国海洋经济博览会”开幕的贺信。

习近平总书记用诗意的语言，高度概括了海洋对社会生存和人类发展的意义。

2．Reading and Thinking：Learn about sea exploration该板块是一篇说明文，介绍了中国从古至今的海洋探索历程。

通过一系列的阅读活动，帮助学生梳理文本内容，理清文本结构，把握文本的主题意义。

活动设计层层深入，活动1激发学生对海洋探索这一主题的阅读兴趣，活动2是对阅读策略的学习和运用，活动3引导学生归纳语篇结构，活动4通过略读文章，把握文章细节，活动5通过层层递进的问题，深化学生对主题意义的探究。

3．Learning About Language：Review useful structures该板块综合复习动词不定式的用法。

人教版（2023）选择性必修第四册Unit 3 Sea Exploration Using Language (Reading for Writing)课件（18张）(共18张PPT)人教版（2023）选择性必修四Unit 3 Sea ExplorationUsing Language (Reading for Writing)Express your opinions on sea explorationLearning objectivesBy the end of this section, you will be able to:find the arguments and evidence of two passages by reading;grasp structures of the two texts;discuss your opinions about sea exploration;write an argumentative essay to express your opinions on sea exploration;cooperate with group mates actively through checking your argumentative essays together.Look and think.Lead-inShould the sea be exploredArgumentative essays.Argument, evidence, restatement / recommendation / a call to action. Read the first paragraph of the two texts and answer the questions.Pre-writingWhat is the type of the two passagesWhat are the three parts in argumentative essaySuggested AnswersRead the two texts below and find the arguments and evidence in them. AE We need to explore the ocean so that we can better understand issues such as acidification which leads to seawater to become more acidic, and how to fight these problems; Studying the ocean causes the creation of new technologies that can help us in other areas.In groups, discuss the following questions and take notes.What is your opinion about sea exploration Do you agree with one argument more than the otherHas your opinion changed after reading the two texts Why or why not Are there any other aspects of sea exploration not mentioned that you think are importantSuggested AnswersBased on your note, write an argumentative essay on sea exploration, expressing your opinions with supporting facts.While-writingEdit.Post-writingSelf-editing.Are my opinions clear and do my facts support my opinionsDoes my information flow easily from one paragraph to anotherDo I stay focused on my point of view throughout the writingDo I save the most compelling or strongest point for the end of the paper Does my writing make sense Am I convinced Will my readers be convincedPeer-editing.Evaluation.Even though the oceans make up about 70% of the earth’s surface, more than 80% of the oceans remain unexplored. While some people say that we should not explore the oceans, their reasoning is not very sound. Exploring is not the same as exploiting. When we explore a place, we go just to see and understand what is there.We should explore the ocean, first and foremost, because we do not know what we do not know. We thought we knew many about the ocean, but we were wrong. There could be life forms in the ocean, for example, that fit none of the neat categories we have for life while we have no clue that they even exist.This brings up the second point. We already know many things about the ocean, but we need to learn more. A good example is ocean acidification. We know that it is causing coral to die. We know that using less fossil fuel would cause the process to slow down. However, we need to learn more to find out how to stop it. We need more research to see what is going on, and to come up with plans and solutions.Finally, to do this research, we have to enter an extreme environment not very friendly to humans. This requires the development of new technologies that can also benefit us in other areas. For example, in many ways, the deep ocean resembles outer space. The technologies can benefit each other. For another instance, the technology of a mechanical arm to collect samples with has been used in factories and development of artificial limbs for humans.All in all, there are many good reasons to explore the oceans. If we care about science, about protecting our oceans, and about developing new technologies, we need to do all we can to support ocean exploration. Sample WritingWords and ExpressionsThe sea is home to life, not human beings’ possessions. (P32)海洋是生命的家园，而不是人类的私产。

SectionⅢUsingLanguage,AssessingYourProgress&VideoTime课后·训练提升一、单词拼写1.Norris twice knocked down his (对手) in the early rounds of the fight.2.The sinking of the tanker has made aspects of (海洋的)pollution particularly topical.3.The oil shortage drove gas prices up by 20 cents a (加仑).4.Father was cutting the grass,and (与此同时) mother was planting roses.5.He found their address in the telephone (电话号码簿).二、选词填空1.She a new idea for increasing sales.2.If it rains,the great performance will at eleven o’clock in the morning.3.It’s easy to my pills because they’re all different colours.4.There is patterns to choose from.5.The past system has comprehensively failed and we haveto completely replace it.6.I pushed aside my sorrow,forcing myself to the coming test.7.Extensive tests have been on the patient.三、阅读理解Scientists Diego Kersting and Cristina Linares have found that some coral species are able to recover from harmful warming events through a unique survival strategy (策略)—known as “rejuvenescence”—among corals in the Mediterranean Sea.The findings represent some rare good news for corals around the world,which are facing numerous severe threats—mostnotably,climate change.“The main threats are climate change,overfishing,pollution and coastal urbanisation,” Kersting said.“But currently,climate change is probably the one causing the most coral cover declines.Warming stresses corals up to a point that may causedeath.Some corals bleach (白化) before dying.Other corals do not bleach but die directly.” He went on,“Our findings are significant because this survival strategy was only known from fossil corals that eillions of years ago.It is the first time that it has been found in a living coral.Thanks to our findings,we know now that some corals are able to recover,but unfortunately this is not enough in the c urrent climate change context.”For their research,Kersting and Linares monitored 243 colonies of the endangered reef-building coral Cladocora caespitosa in Spain’s Columbretes Islands Marine Reserve over 16 years,starting in .The monitoring revealed that Cladocora caespitosa in the Mediterranean uses rejuvenescence to cope with warming events.This process involves the polyps(息肉) — or the individual coral animals in a colony—shrinking inward and abandoning their skeletons(骨骼) during warm periods,before rejuvenating at a later point.“What happens is that some polyps in a coral colony—sometimes just one—reduces completely its dimensions and partially retreats from its skeleton,” Kersting said.“Once thestressful event is over,the shrunken or rejuvenated polyp recovers its size and builds up a new skeleton.Eventually,it begins to reproduce itself through budding and begins to cover the dead colony surfaces.”He continued,“The results were very surprising because I started to observe colonies that were dead years ago,that were showing living parts many years after their death.”1.What is the greatest threat to corals now?A.Overfishing.B.Light pollution.C.City growth.D.Climate change.“Butcurrently,climatechangeisprobablytheonecausingthemostcoral coverdeclines.”可知,珊瑚现在面临的最大威胁是气候变化。