Unit 5 Period 1 Starting out&Understanding ideas（课件PPT）-【学霸笔记·同步精讲】2025-2026学年高中英语选择性必修第一册（外研版）

该高中英语课件围绕“Revealing nature”主题，涵盖核心词汇、短语、句型、过去完成时语法及植物观察日志写作任务，通过话题语基（生物、探索精神等词汇）导入，衔接到达尔文进化论语篇，构建从基础语言知识到语篇理解的学习支架。 其亮点在于融合语言能力（语篇精读、词汇拓展）、思维品质（结构分析、科学精神讨论）和学习能力（自查微练），如通过达尔文文章结构梳理及语法填空培养分析能力，讨论活动引导学生思考探索精神。学生能提升综合语言运用能力，教师可获得系统教学资源以提高效率。

Unit 5 Revealing nature 1 ［核心单词］ seed distant sample suspect ancestor generate characteristic decline blame primitive detect root link centimetre 返回导航 2 ［重点句型］1.so/such...that... 2.Sb./Sth.+be+过去分词+to do... ［单元语法］ 过去完成时 ［写作任务］ 植物观察日志 ［重点短语］ answer the call, first choice, of all time, in question, be crowded with, come to exist, adapt to, a variety of, be native to, tiny amounts of, drive...away 返回导航 3 ［The living creatures］ flesh n. 果肉 bud n. 花蕾 cub n. 幼兽 claw n. 爪 shoot n. 幼苗 wild animals 野生动物 farm animals 家畜 返回导航 4 ［The spirit of exploration］ curious adj. 好奇的 cautious adj. 谨慎的 serious adj. 严肃的 quick-minded adj. 思维敏捷的 full-hearted adj. 满腔热情的 determined adj. 坚决的 sceptical adj. 怀疑的 返回导航 5 ［The evolution process］ reproduce v. 繁殖 extinct adj. 灭绝的 evolve from... 从……进化而来 die out 灭绝 natural selection 自然选择 keep the balance of nature 保持自然界的平衡 survive natural disasters 在自然灾害中幸存 返回导航 6 ［The methods of exploration］ unearth v. 发掘 assume v. 认为 dig for remains 探寻遗迹 propose a theory 提出一个理论 collect samples 采集样品 analyse data 分析数据 返回导航 7 话题佳句 1.It is a beneficial and necessary thing for us to cherish the beauty of the earth and explore the nature and humanity. 对我们而言，珍惜地球的美并探索自然和人性是一件有益且有必要的事情。 2.As the natural resources we have are limited, we have no reason to waste the precious resources without limit. 由于我们拥有的自然资源是有限的，所以我们没有理由毫无限制地浪费宝贵的资源。 返回导航 8 3.This activity not only gave us a chance to get close to nature, but also gave us relaxation from our study. 这个活动不但给了我们接近大自然的机会，而且能让我们从学习中得到放松。 返回导航 9 Period 1 Starting out & Understanding ideas 10 1 精读课文 语篇理解 2 自查语基 知能落实 3 创意课堂 点面突破 4 课堂微练 即时检验 11 PART 01 精读课文 语篇理解 12 &1& 〈教材助读+语基默写〉见分册本 What does the passage mainly talk about?( ) A.Darwin's interest in various things made him a great naturalist. B.Darwin's journey on the Beagle inspired his theory of evolution. C.Why Darwin was chosen to go on a journey with the captain of the Beagle. D.Darwin went on a journey to confirm his theory that humans had evolved over time. √ 返回导航 13 medical disgrace samples evolved evolution most important 返回导航 14 1.What do we know about Charles Darwin from paragraph 1?( ) A.His father was disappointed with him. B.He was interested in his lessons at college. C.He knew the captain of the Beagle very well. D.He wanted to travel around the world by ship. 2.What was Charles Darwin interested in?( ) A.Travelling around the world. B.Living things on Earth. C.Communicating with others. D.Doing research on resources. √ √ 返回导航 15 3.What kind of person was Charles Darwin according to the passage?( ) A.Humorous and clever. B.Intelligent and helpful. C.Knowledgeable and generous. D.Ambitious and persistent. 4.What did Charles Darwin base his theory on?( ) A.Experiments. B.Scientific research. C.Traditional beliefs. D.Famous sayings. √ √ 返回导航 16 1.When the Beagle reached the Galápagos Islands in 1835, Darwin saw a variety of new species, but it was the birds that interested him the most.（Para.4） ［分析］ “When the Beagle...in 1835”为when引导的__________从句；主句是but连接的并列句，其中第二个分句中“it was the birds that interested him the most”为__________。 ［翻译］ ___________________________________________________ ______________________________________________ 时间状语 强调句型 1835年，当“猎犬号”抵达加拉帕戈斯群岛时，达尔文看到了各种各样的新物种，但最令他感兴趣的是鸟类。 返回导航 17 2.Darwin suspected that the finches had evolved from a common ancestor, which had arrived on the islands a long time before.（Para.5） ［分析］ 句子的主干为Darwin suspected，“that the finches...ancestor”为that引导的______从句，“which had arrived...before”为which引导的______________从句，修饰先行词ancestor。 ［翻译］ ___________________________________________________ __________________________________ 宾语 非限制性定语 达尔文猜想这些雀鸟是从一个共同的祖先进化而来的，而该祖先很久以前就来到这片群岛了。 返回导航 18 Charles Darwin, whose father predicted that he would be 1.___ disgrace to himself and his family, didn't complete his 2.________（medicine） degree at college. However, his adventures on the Beagle led to one of the most important scientific 3.___________（discovery） of all time. a medical discoveries 返回导航 19 The journey on the ship, the Beagle, offered him a good opportunity 4._________（study） the living things in their natural environments. He was so fascinated by rocks, plants and animals 5._____ he got his room crowded with samples. It was believed at that time that all species 6._____________（appear） to study that had appeared 返回导航 20 on Earth at the same time and hadn't changed since. Through his careful observation, he began to think 7.__________（different）. When the Beagle reached the Galápagos Islands, he noticed that there was a difference between the beaks of the finches on each of the islands according to what food was available on that particular island. So he thought they must have evolved from a common ancestor, and they had evolved to adapt 8.___ the environment. differently to 返回导航 21 Darwin based his new ideas on his observation and generated his theory of 9._________（evolve）. The book, On the Origin of Species, explained his theory, 10.________（cause） a heated storm of debate. Today, it is still regarded as one of the most important works ever written. evolution causing 返回导航 22 What have you learned about the spirit of scientific exploration? ____________________________________________________________ ________________________________________________________________________________________________________________________ All of us are on the journey of life. We are born with the good qualities Darwin has. We just need to waken them and keep them awake! Keep exploring! Keep questioning! Keep thinking! 返回导航 23 PART 02 自查语基 知能落实 24 Ⅰ.阅读词汇·识记 选出与单词对应的汉语释义 A.鸟嘴，喙 B.雀科鸣禽 C.地质学家 D.丢脸，耻辱 返回导航 25 1.disgrace n. 答案：D 2.geologist n. 答案：C 3.finch n. 答案：B 4.beak n. 答案：A 返回导航 26 Ⅱ.核心词汇·练通 根据语境及汉语提示写出正确的单词 1.plant ______播下种子 2.________ of the plants and animals 动植物样本 3.evolve from a common ________ 从一个共同的祖先进化而来 seeds samples ancestor 返回导航 27 Ⅲ.拓展词汇·用活 根据提示写出相应的单词 1._______ adj.遥远的；远处的→distance n.距离；远处 2._______ v.进化→evolution n.进化（论） 3.________ v.猜想，怀疑，觉得→suspected adj.可疑的；疑似……的→suspicious adj.怀疑的；可疑的→suspicion n.怀疑，嫌疑 4._________ v.产生，创造→generation n.产生；代；一代人→generator n.生产者；发电机 distant evolve suspect generate 返回导航 28 Ⅳ.重点短语·再现 根据语境及汉语提示填入合适的短语 1.We're determined to _______________（响应号召） to take action and contribute to environmental protection. answer the call 2.While it is the ___________（首选） of many young travelers, Europe is also seen as a wonderful tourist attraction by many old people. first choice 3.The discovery of penicillin is widely regarded as one of the most important medical breakthroughs ___________（有史以来）. of all time 返回导航 29 4.The issue of whether to carry out the new policy is currently ___________（在讨论中）, and the decision will be made based on the results of the discussion. in question 5.The square ________________（挤满） excited tourists, colorful market stalls and many street performers during the Spring Festival. 6.This kind of plant _____________（产生） millions of years ago and has survived in various environments. is crowded with came to exist 返回导航 30 7.Humans have an amazing ability to _________（适应）new environments, allowing them to survive in a wide range of conditions. adapt to 8.The island offers such ____________（各种各样的） scenery, activities and cultural experiences that it is a must-visit destination for anyone who loves to travel. a variety of 返回导航 31 Ⅴ.重点句型·呈现 根据课文语境及汉语提示补全句子 1.强调句型 When the Beagle reached the Galápagos Islands in 1835， Darwin saw a variety of new species， but ____________________________ _____________（最令他感兴趣的是鸟类）.（Para.4） it was the birds that interested him the most 2.“It seems/seemed （that）...”意为“看起来/似乎是……” _______________________________（它们的喙似乎是……进化而来的） according to what food was available on that particular island.（Para.4） It seemed their beaks had evolved 返回导航 32 3.“not...until...”意为“直到……才……” _____________________________（它直到1859年才出版） and immediately caused a storm.（Para.6） It was not published until 1859 4.“so/such...that...”意为“如此……以至于……” But Darwin's scientific studies were _________________（如此具有说服力以至于） more and more people started to believe his theory.（Para.6） so convincing that 返回导航 33 PART 03 创意课堂 点面突破 34 1 distant adj.遥远的；远处的；远亲的；冷淡的 【经典例句】 ①（教材P<m></m>）The captain of the ship, the Beagle, wanted someone who would “profit by the opportunity of visiting distant countries yet little known”. “猎犬号”的船长希望找到一个“借此机会游历遥远而鲜为人知的国度并从中受益”的人。 返回导航 35 ②（人教选必一U2）They have lived mainly as farmers since the 18th century, and they will probably be living the same way in the distant future. 自18世纪以来，他们主要以农民的身份生活，在遥远的将来，他们可能也会以同样的方式生活。 返回导航 36 （1）be/become distant from离……遥远 （2）distance n.距离；远处；远方 in the distance在远处 at a distance 从远处，离一段距离 at a distance of在……距离处 within walking distance在步行距离内；步行就能到 keep sb. at a distance与某人保持一定距离 返回导航 【单句语法填空/补全句子/完成句子】 （1）We could see nothing in the thick fog ___ a distance of five meters，so we got lost on the way home.［读后续写之场景描写］ （2）Small and distant ______ the cities though my hometown is, there is always something different to catch your eye. （3）I saw some children waving to the foreign guests ______________（在远处），but I couldn't see them clearly. at from in the distance 返回导航 38 （4）You can also visit the city museum, which is _______________________________________________（从你住的酒店步行就能到）.［应用文写作之推荐信］ within walking distance of the hotel where you stay （5）了解玛丽很难，因为她总是与每个人都保持一定距离。 It is very difficult to get to know Mary because she _________________________________.［读后续写之人物描写］ always keeps everyone at a distance 返回导航 39 2 be crowded with 挤满；充满；塞满 【经典例句】（教材P<m></m>）After Darwin had spent some time in South America, his room on the ship was crowded with samples of the plants and animals he had collected. 在南美洲度过一段时间后，达尔文的船舱里满是他收集的动植物样本。 返回导航 40 crowd v. 拥挤；挤满 n.人群；观众 crowd into挤进；涌入（某人）脑海 crowd in （on sb.）（问题、想法等）涌上（某人）心头 a crowd of一群；一堆 crowds of成群；许多 返回导航 41 【单句语法填空/完成句子】 （1）The scenic spots are typically crowded _____ masses of tourists during the peak holiday season, making it a challenging and sometimes stressful experience to visit. with （2）成群的学生涌进了校车，不一会儿，车里就挤得容不下其他人了。 ______________________________________________________, and in a while it was ___________________ anyone else.［读后续写之场景描写］ Crowds of/A crowd of students crowded into the school bus too crowded to hold 返回导航 42 3 adapt to 适应 【经典例句】（教材P<m></m>） Maybe animals evolved as they adapted to their changing environments? 也许动物在适应环境的变化时也逐渐进化了? （1）adapt v.适应；调整；改编 adapt oneself to...使自己适应…… adapt...from...根据……改编…… adapt...for...为……改编…… （2）adaptation n.适应；改编本 adaptable adj.有适应能力的；能适应的 返回导航 43 【单句语法填空/完成句子】 （1）（2024·浙江卷1月）Tom Sawyer: A River Adventure ______________（adapt） by Joe McDonough, with music by David Kisor. is/was adapted （2）I am writing to ask you to help us with our English short play ________（adapt） from our English text.［应用文写作之求助信］ adapted （3）Although some foreign students live in campus accommodation, Xie Lei chose to live with a host family, who can help with her __________（adapt） to the new culture. adaptation 返回导航 44 （4）在纽约一年的时间里，要不是你的帮助，我不可能这么快就适应新环境。 But for your help during my one year's stay in New York, I _____________________________________________________ so quickly.［应用文写作之感谢信］ wouldn't have adapted （myself） to the new environment 返回导航 45 4 suspect v.猜想，怀疑，觉得 n.［C］嫌疑犯;可疑对象 【经典例句】（教材P<m></m>）Darwin suspected that the finches had evolved from a common ancestor, which had arrived on the islands a long time before. 达尔文猜想这些雀鸟是从一个共同的祖先进化而来的，而该祖先很久以前就来到这片群岛了。 （1）suspect sth./that...怀疑某事/…… suspect sb./sth. to be...怀疑某人/某事是…… suspect sb.of （doing） sth.怀疑某人（做了）某事 （2）suspicious adj.怀疑的；可疑的 返回导航 46 【单句语法填空/完成句子】 （1）___________（suspect） that the traveler carried illegal goods，the Customs official stopped him and went through his suitcase. Suspecting （2）I had been betrayed by those who I trusted several times, resulting in my __________（suspect） attitude towards everything and everyone. suspicious 返回导航 47 （3）汤姆的朋友怀疑他在考试中作弊，这让汤姆感到非常沮丧，并且急于证明自己的清白。 Tom's friend ____________________________________, which made Tom feel very upset and eager to prove his innocence.［读后续写之情绪描写］ suspected him of cheating on the exam 返回导航 5 “so/such...that...”意为“如此……以至于……” 【经典例句】①（教材P<m></m>）But Darwin's scientific studies were so convincing that more and more people started to believe his theory. 但是达尔文的科学研究是如此具有说服力，以至于越来越多的人开始相信他的理论。 ②（人教必修三U5）I developed such a strong interest in stage design that I realised I wanted to spend the rest of my life doing it. 我对舞台设计产生了如此浓厚的兴趣，以至于我意识到我想用余生来做这件事。 返回导航 49 （1）“so/such...that...”引导状语从句，该结构的具体形式如下： __________________________________________________________________________________________________________________________ （2）在“so/such...that...”结构中，当so/such置于句首时，其所在句子要用部分倒装结构。 返回导航 50 【单句语法填空/一句多译】 （1）（2024·新高考全国卷Ⅰ）It was _____ an extraordinary and memorable experience that I would always keep it in my memory. （2）We had ___ little time to catch the train that we had to run as fast as we could to make it. such so 返回导航 51 （3）他是一位极其负责任的老师，以至于我们都被他深深打动，永远不会忘记他对我们的学习和个人成长产生的影响。 →He was __________________________ we were all deeply moved and we will never forget the impact he had on our learning and personal growth. →He was ____________________________ we were all deeply moved and we will never forget the impact he had on our learning and personal growth. so responsible a teacher that such a responsible teacher that 返回导航 52 →_________________________________________________________ we were all deeply moved and we will never forget the impact he had on our learning and personal growth. （倒装）［应用文写作之人物介绍］ So responsible a teacher/Such a responsible teacher was he that 返回导航 PART 04 课堂微练 即时检验 54 Ⅰ.品句填词 1.It is the touching lyrics （歌词） and beautiful tunes that impress me and transport me back to the _______（遥远的） past. 2.The study showed lions and house cats had a common a________. 3.When completed, the dam will be the largest one to _________（产生） electricity in the central regions of the country. distant ncestor generate 4.Over sixty students took an active part in the activity, some weeding the flower beds, some sowing ______（种子） and others watering the garden. seeds 返回导航 55 5.We ________（怀疑） they are trying to hide something, hence we need an independent inquiry. 6.The scientist collected some insects and plants as ________（样品）in the mountain for his study. suspect samples 7.Birds are widely believed to have e_______ from dinosaurs over a period of millions of years through a process of gradual change and natural selection. volved 返回导航 56 Ⅱ.词块运用 1.The beach ______________________（挤满了人） enjoying the sunshine and the sea, playing volleyball, and building sandcastles. is crowded with people 2.The idea of artificial intelligence didn't ______________________（一夜之间出现）; it evolved over decades of research and development. come to exist overnight 3.__________________（为了响应号召）, the city is scheduled to release more detailed educational policies to reduce students' learning burden. To answer the call 返回导航 57 4.The expert has pointed out that how to carry out effective cost control _________________（仍在讨论中）. is still in question 5.Not only has she _______________________________（适应快节奏的生活方式） in the big city, but she is becoming more and more outgoing. adapted to the fast-paced lifestyle 返回导航 58 Ⅲ.根据汉语提示并使用本部分句式结构完成下面的小短文 Last weekend, I participated in a “Getting to Know the Plants Around Us” activity organized by our Students' Council. We gathered on the playground at 8:00 a.m. and then set off along the foot of the mountain behind our school. A local botanist told us about the different characteristics of various plant species as we went along. 1.___________________________________________________________________［看起来每个人都被植物的美丽深深地吸引住了； It seemed that everyone was deeply fascinated by the beauty of the plants 返回导航 59 It seems/seemed （that）...］ around us. 2.____________________ ______________________________________________________________________________（这次活动如此令人印象深刻，以至于激发了我们学生了解各种植物的热情；so...that...）. Moreover, 3.__________________________________________________________（正是通过这次活动，我们意识到大自然是多么神奇；强调句型） and that we should spare no effort to protect nature. The activity was so impressive that it aroused the enthusiasm of us students to get to know various plants it is through this activity that we realize how amazing nature is 返回导航 $