Unit 5 Section Ⅴ “Developing ideas”的新知学习环节-【新课程学案】2025-2026学年高中英语选择性必修第四册配套课件PPT（外研版）

该高中英语课件围绕词汇、句式及语篇训练展开，涵盖课前词汇默写（含阅读、重点、活用、构词、词块）、核心词汇突破、重点句式解构等模块，通过分层设计搭建从基础认知到灵活应用的学习支架，衔接前后知识点。 其亮点在于融合语言能力与思维品质培养，如核心词汇通过语境例句、归纳点拨及语法填空强化应用，重点句式借助变换仿写深化理解。语篇训练融入海洋探索主题，渗透文化意识，采用“感知-归纳-应用”教学法，助力学生提升语言运用能力，教师可高效落实课标要求。

“Developing ideas” 的新知学习环节 Section Ⅴ 课前词汇默写 核心词汇突破 重点句式解构 课时跟踪检测 Contents 目录 01 02 03 05 04 随堂融通训练 2 01 课前词汇默写 一、阅读单词——知其义 1．the remains of the shipwreck　　 ______残骸 2．coral islands ______岛 3．in the very deepest ocean trenches 在最深的______里 4．China's underwater vessels 中国的水下______ 5．an encyclopedia in 20 volumes 一套20___的百科全书 沉船 珊瑚 海沟 舰艇 卷 二、重点单词——写其形 1．two ___________　　　　　 两毫米 2．look __________ 向上看 3．250 grams or an ___________amount in ounces 250克或与之等量的盎司 4．______ one on top of another 堆叠在一起 5．and ___________ 此外 6．an ice-like _________ 冰状物质 millimetres equivalent upwards stack furthermore substance 三、活用单词——悉其变 archaeological archaeology archaeologists notable notably drill drilling 四、拓展构词——明其规(依据规律串记单词) archaeologist：后缀-ist表示“从事某种职业的人” ①botanist　植物学家　 ②physicist　物理学家 ③pianist 钢琴家 ④violinist 小提琴家 ⑤novelist 小说家 ⑥biologist 生物学家 五、高级词块——通其用 1．_________　　 　　　 起航；扬帆 2．____________ 继续做 3．________ 正如；与……一样；就……来说 4．_____________ 距离……的海岸 5．__________________ 提供进入……的窗口 6．______ 多达；由……决定的 set sail continue to do as with off the coast of offer a window into up to 7．_____________ 按……速度；按……比率 8．______________ 等(同)于；相等(当)于…… 9．___________　　 　　 另外，此外 10．_____________ 保持纪录 11．_________________ 超出……能力之外；无法达到 12．________ 开发；开拓 13．____________ 最后的疆域 14．____________ 为……所熟悉 at the/a rate of be equivalent to in addition hold the record beyond the reach of open up final frontier be familiar to 02 核心词汇突破 1．Being a tough environment of complete darkness, enormous pressure and intense cold, the ocean depths have long been beyond the reach of human exploration. 深海区域环境恶劣，完全黑暗、压强极大、极度寒冷，长期以来都是人类探索无法企及的区域。 ★beyond the reach of无法达到；超出……的能力之外 |用|法|感|知| •This text is rather difficult. It is, however, not beyond the reach of the students. 这篇课文相当难，但并未超出学生的阅读水平。 •(“推荐”类写作佳句)The reason why I recommend this community to you is that it is within easy reach of the shops and bus stops. 我向你推荐这个社区的原因是它离商店与公共汽车站都很近。 [归纳点拨] (1)within (easy) reach of　　 很接近；靠近 out of reach 够不着，遥不可及 (2)reach (out) for 伸手去拿 reach out to sb. 向某人伸出援手 reach into 伸进……　 |应|用|融|会| (单句语法填空/完成句子) ①Mary, a senior fashion consultant, reached ______the bag and pulled out some fancy designer clothes. ②Don't reach ______things far away at the table; instead, ask to have them passed. ③Everybody tried to _____________________________________ ___________. 每个人都努力向最近受到地震影响的人们伸出援助之手。 into for reach out to those affected by the recent earthquake ④She put the medicine on the top shelf _____________________ ____________________________. 她把药放在她儿子够不着的最上面一层架子上。 (which is) beyond the reach/out of the reach of her son 2．Humankind is entering a new age of oceanic discovery, and the world beneath the waves may one day be almost as familiar to us as the land we walk upon today. 人类正走向海洋发现的新时代，或许有朝一日，我们会像熟悉脚下的土地一样熟悉那海浪下的世界。 ★be familiar to为……所熟悉 |用|法|感|知| •The scenery of mountain and water here is no more familiar to me. 这里的山水景色对我来说是再熟悉不过了。 •I believe the exhibition will make you more familiar with the art of traditional Chinese painting. 我相信这次展览会让你更加熟悉传统国画艺术。 •For one thing, China's overall development over the past decades has been so striking that they are desperate to familiarize themselves with what is going on in China. 一方面，中国在过去几十年里的整体发展是如此惊人，以至于他们迫切希望了解中国正在发生的事情。 归纳点拨 (1)be familiar with　　　　对……熟悉 unfamiliar adj. 陌生的；不熟悉的；不认识的；无……的知识(或经验) (2)familiarize vt. 熟悉；(使)了解；通晓 familiarize oneself with　使自己熟悉 名师点津 be familiar with指“(主语)对(某人或某物)熟悉”，主语通常是表示人的词；be familiar to指“(主语)对(某人)来说是熟悉的”，主语通常是表示事物的词。 |应|用|融|会| (单句语法填空) ①I think I am fit for the job because I am familiar ______Chinese culture. ②All these were so familiar _____her since she had traveled the route so many times. with to 03 重点句式解构 Today, some 500 years after the Esmeralda set sail, there is little — if any — land on our planet left unexplored. 如今，距离“埃斯梅拉达”号起航已有500多年，我们星球上尚未被人类探索的土地已经少之又少了。 句中if any属于条件状语从句的省略结构，意为“如果有的话”。此类省略结构还有： if necessary　　　　 如果有必要的话 if possible 如果有可能的话 if ever 如果曾经有过的话 if so 如果这样的话 “两层级”学通用活句式 (1)通过“句式变换”弄明句式结构(改为省略句) ①There may be some mistakes in my composition.If there is any, please help me point them out. →There may be some mistakes in my composition._______, please help me point them out. If any (2)通过“句式仿写”做到熟练运用 ②你可以来北京度假。如果来的话，我将带你参观颐和园。 You can come to Beijing for a holiday._______, I'll show you around the Summer Palace. ③这里的气候相当宜人，夏季气温很少达到30℃。 The climate here is quite pleasant，the temperature rarely,______, reaching 30℃ in summer. If so if ever 04 随堂融通训练 根据课文内容，在空白处填入1个适当的单词或括号内单词的正确形式。 ①_______ (lie) under waters across the globe are an estimated three million shipwrecks. All of them represent attempts over the centuries ②__________ (explore) Earth's furthest corners.Among these ③______ (be) the Esmeralda, the earliest wreck from the age of the European exploration of Asia. Lying to explore is As with the discovery of the Esmeralda, many ④______________ (archaeology) finds ⑤_________ (make) in shallow waters near the coast. Amazing biological discoveries are also being made.The dark zones of the oceans may contain up ⑥____ 90 per cent of the planet's fish. These discoveries all help us understand the capacity for life on our planet, even in the most extreme ⑦____________ (circumstance). Furthermore，the oceans are a valuable source of natural resources, some of ⑧_______ are completely new to us. archaeological are made to circumstances which Being ⑨_____ tough environment of complete darkness, enormous pressure and intense cold, the ocean depths have long been beyond the reach of human exploration. However, through closer international scientific, economic and cultural cooperation, we are all becoming part of a global mission to open up ⑩______ (we) planet's final frontier. a our 05 课时跟踪检测 第Ⅰ卷　语言基础训练 (一)单词拼写(5分) (1)The only survivor of a __________(沉船) was washed up on a small, uninhabited island. (2)A _________ (毫米) is a metric unit of length that is equal to one tenth of a centimetre or one thousandth of a metre. (3)He said he had not discussed the matter with her. ____________ (此外), he had not even contacted her. shipwreck millimetre Furthermore (4)The lab is researching a new __________(物质) that can speed up plant growth. (5)He climbed __________(向上) along the steep path, gripping the rocks tightly. substance upwards (二)单句语法填空(12分) (6)It was the ________(drill) that he had at school that made him a good runner. (7)Stonehenge is one of the world's most famous prehistoric monuments ________(date) back over 5,000 years. (8)________ (give) that he had dismissed your proposal, you'd better work out a new one. drilling dating Given (9)If we can do that, we can keep up with the times.If______, we would always fall behind. (10)The crowd continued _________(argue) heatedly about the best way to tackle the problem. (11)The film offers a window _______how people lived their lives at that time. not to argue into (三)选词填空(10分) beyond the reach of， hold the record， at a rate of， is equivalent to， be familiar to (12)According to one report, the water is advancing __________between 8 and 10 inches a day. (13)The price is ten times what it normally is and totally __________________ordinary people. at a rate of beyond the reach of (14)The old street with red-brick houses _____________anyone who grew up in this town. (15)Many people believe that being wealthy ___________________ gaining success. (16)The man seated there now _______________for the longest time spent in space on one flight in America. is familiar to is equivalent to holds the record (四)完成句子(8分) (17)Moreover, there are many ways to test a student's English proficiency,_____________________________________. 此外，测试学生的英语水平有很多方法，其中口语只是一小部分。 (18)_______________________ good study habits, useful skills and a positive attitude. 同样重要的还有良好的学习习惯、实用的技能和积极的态度。 of which oral English is only a small part Of equal importance are (19)This misunderstanding didn't harm our friendship.____________, it strengthened it. 这次的误会并没有损害我们的友谊。要说真有什么的话，它反而巩固了我们的友谊。 (20)Nowadays，with the fast development of science and technology, __________________________________________________ __________________. 如今，随着科学技术的飞速发展，越来越多的科学家正投身于海洋探索。 more and more scientists are throwing themselves into ocean exploration If anything 第Ⅱ卷　语篇综合训练 (一)完形填空 Fourth grader Molly Sampson didn't ask for typical new year's gifts this year. 1 ， the little scientist requested cold-water waders (高筒靴) so that she could hunt for fossils. Molly 2 with her father and sister to their favorite spot on Calvert Beach in the early morning. Molly's father, Bruce Sampson, has always been into fossil 3 ， and his daughters share his 4 . Molly has got an impressive collection of more than 40 5 over the years. These fossils range from modern-day shark teeth to far 6 items, like megalodon (巨齿鲨) teeth. Molly herself has found megalodon teeth 7 , but on this day, she found one of the largest ones ever 8 . She was standing in knee-deep water when she first saw the tooth. “I saw something 9 ， and it looked like a shark tooth，” she 10 . “We were about knee deep in the water.” Molly reached for the tooth, but it was so big she 11 to take it out of the water. She felt “amazed” when she finally pulled it above the 12 and saw its size. Now Molly is more 13 than ever to pursue a career in paleontology (古生物学) someday. Her mother says she hopes other girls will see Molly's story and become 14 to get outdoors and study science, too. “We really want other kids to get excited about being outside，” said Alicia. This amazing find is a nicer 15 for this little young scientist's new year. √ 解析：根据上文“Fourth grader Molly Sampson didn't ask for typical new year's gifts this year.”可知，莫莉没有索要常规的新年礼物，而是要求一双高筒靴来寻找化石，前后形成“没有做某事，反而做了另一件事”的对比关系，“Instead”符合这种逻辑衔接。 语篇解读：本文是一篇记叙文。文章讲述了小女孩莫莉受父亲的影响，喜欢上寻找化石，并成功找到一个迄今为止她所有收藏中最大的巨齿鲨牙齿化石。这不仅是她的新年礼物，更坚定了她从事古生物学职业的决心。 1．A.Therefore B．Instead C．Besides D．However √ 解析：根据下文“to their favorite spot on Calvert Beach”可知，莫莉和家人要前往卡尔弗特海滩上他们喜欢的地方，“set out”有“出发、动身”的含义，能体现他们前往目的地的动作，符合语境。 2．A.broke up B．kept up C．set out D．found out √ 解析：根据上文“she could hunt for fossils”可知，莫莉想要高筒靴是为了寻找化石，此处提到她的父亲布鲁斯·桑普森，应是指父亲一直热衷于“寻找”化石，“hunting”与上文“hunt for”语义一致，符合语境。 3．A.stealing B．crying C．escaping D．hunting √ 解析：根据上文“has always been into fossil ”可知，布鲁斯·桑普森一直喜欢寻找化石；上文提到“his daughters share his ”，即继承他的某种特质，“passion”符合语境。 4．A.doubt B．regret C．passion D．happiness √ 解析：根据下文“These fossils range ... like megalodon (巨齿鲨) teeth.”可知，莫莉收藏的是化石这类“物品”，“items”可泛指具体的物品，能概括她收藏的化石，且与下文“items”形成呼应。 5．A.items B．books C．weeks D．places √ 解析：根据上文“modern-day shark teeth”可知，此处是将收藏的化石进行对比，“modern-day” (现代的)对应的是“older” (更古老的)，指从现代鲨鱼牙齿到更古老的巨齿鲨牙齿化石，符合逻辑对比关系。 6．A.younger B．cleaner C．older D．uglier √ 解析：根据上文“has found megalodon teeth”可知，莫莉已经发现过巨齿鲨的牙齿；下文提到“but on this day, she found one of the largest ones ever”，但这一天发现了有史以来最大的牙齿之一。before说明“过去发现”与“这次发现”的先后顺序，符合语境。 7．A.after B．before C．during D．while √ 解析：根据上文“Molly herself has found megalodon teeth ”可知，莫莉以前发现过巨齿鲨牙齿，此处“but”表转折，指这一天她发现了有史以来最大的牙齿之一，“discovered”与上文“found”语义相近，符合语境。 8．A.discovered B．created C．hoped D．lost √ 解析：根据下文“but it was so big”可知，莫莉一开始看到的东西看起来像鲨鱼牙齿，且后文强调它“很大”，“big”能与下文“so big”形成呼应，符合语境。 9．A.big B．light C．heavy D．small √ 解析：根据上文莫莉描述发现牙齿化石的场景可知，这是她对过去发生事情的叙述，“recalled”有“回忆，回想”的含义，符合语境。 10．A.walked B．worried C．recalled D．jumped √ 解析：根据上文“it was so big”可知，这颗牙齿化石很大，莫莉伸手去拿时，要“努力，挣扎”才能把它从水里弄出来，“struggled”能体现她因物体过大而费力的状态，符合语境。 11．A.ran B．smiled C．hurried D．struggled √ 解析：根据上文“We were about knee deep in the water.”和“pulled it above the”可知，莫莉一开始在水里发现牙齿化石，经过努力后，终于把它拉到了“水面”上，“water”与上文的水域场景一致，符合语境。 12．A.earth B．water C．house D．car √ 解析：根据上文莫莉发现了有史以来最大的巨齿鲨牙齿化石之一可知，这次惊人的发现让她对古生物学职业更加“兴奋”，“excited”能体现她因兴趣相关的重大发现而产生的积极情绪，符合语境。 13．A.shy B．excited C．humorous D．afraid √ 解析：根据下文“to get outdoors and study science”可知，莫莉的母亲希望其他女孩看到莫莉的故事后，能受到“启发”，去户外学习科学，“inspired”有“激励、启发”的含义，符合语境。 14．A.frightened B．forced C．surprised D．inspired √ 解析：根据文章开头第一句可知，莫莉没有索要常规新年礼物，而这次发现的巨齿鲨牙齿化石对她来说，是一份特别的新年“礼物”，“gift”与开头的“new year's gifts”形成呼应，符合语境。 15．A.news B．promise C．wish D．gift (二)语法填空(15分) Today, much of the world's ocean is still a mystery. Only 5 percent of it 16 (explore) so far. In fact, we know more about some areas of Mars 17 some parts of the world's ocean. New technology, however, is helping scientists explore these 18 (hide) worlds. For example, scientists are using an underwater vehicle called DeepSee to explore seamounts — underwater mountains. Scientists have used DeepSee to study Las Gemelas, an area of seamounts near Costa Rica. A huge variety 19 species live around Las Gemelas. Some of these species may have chemicals 20 can help people fight illnesses. The 21 (deep) location of the earth is the Mariana Trench in the Pacific Ocean. The ocean floor there is about 11,000 meters deep. In 2012, a filmmaker and explorer 22 (reach) the Mariana Trench in a vehicle called Deepsea Challenger. He was the first 23 (complete) the journey alone. Cameron took 24 (photo) and made videos on the ocean floor. Deep-sea exploration also helps us in other ways. For example, we are learning how underwater earthquakes cause tsunamis (海啸)．As the filmmaker says, “This is the beginning of 25 (open) up a new frontier.” 语篇解读：本文是一篇说明文。文章主要讲的是世界上的大部分海洋仍然是个谜，但新技术正在帮助科学家探索这些隐藏的世界。 16．has been explored　考查动词的时态、语态和主谓一致。由so far可知，句子时态用现在完成时；世界上的海洋是被开发，因此空格处是现在完成时的被动语态，又因主语5 percent of it是单数，故填has been explored。 17．than　考查介词。由前面的more是比较级可知，空格处用表示比较的介词than。 18．hidden　考查形容词。空格处用形容词作定语，根据句意可知，空格处表示“隐藏的”，故填hidden。 19．of　考查介词。a variety of是固定短语，意为“各种各样的”。 20．that/which　考查定语从句。分析句子结构可知，空格处引导定语从句，从句中缺少主语，先行词chemicals指物，故填that/which。 21．deepest　考查形容词最高级。此处表示最深的位置，the后跟形容词的最高级，故填deepest。 22．reached　考查时态。由In 2012可知，句子描述过去的动作，句子时态用一般过去时。 23．to complete　考查非谓语动词。the first后用动词不定式作后置定语。 24．photos　考查名词复数。photo是可数名词，前面无冠词，因此空格处用复数。 25．opening　考查非谓语动词。of为介词，其后跟动名词作宾语。 本课结束 更多精彩内容请登录：www.zghkt.cn $