Unit1 Period 1 Reading and Thinking-【优学精讲】2025-2026学年高中英语选择性必修第二册教用课件(人教版)

该高中英语课件围绕“科学与科学家”主题，涵盖核心词汇、表语从句、重点短语句型及科学精神写作，通过约翰·斯诺探究霍乱病因的案例导入，串联词汇学习、语法应用与语篇分析，构建从基础语言知识到综合运用的学习支架。 其亮点在于以真实案例为载体整合多维度训练，通过语篇结构梳理（如Part 1-5疾病探究流程）和对比讨论（约翰·斯诺与钟南山共同点）培养思维品质，分层词汇拓展（如frustrate的派生词）和句型实操（until从句、so...that...）提升语言能力，即时微练帮助学生巩固知识，也为教师提供系统教学资源，提高课堂效率。

UNIT 1　SCIENCE AND SCIENTISTS 1 [核心单词] severe frustrated infection subscribe proof multiple suspect blame handle link pure decrease transform protein initial solid cast pour defend assistant leadership outstanding gifted brilliant fault shift vivid [单元语法]　表语从句 返回导航 [重点短语]　once and for all, subscribe to, thanks to, break out, in charge of, come down with, above all [重点句型]　1.until引导时间状语从句 2.so...that... 3.过去分词(短语)作状语 4.not only...but also... [写作任务]　关于科学精神的文章 返回导航 [Scientific research] observe v.　　　　 观察 measure vt. 测量 predict vt. 预测 compare vt. 比较 analyze vt. 分析 classify vt. 分类 返回导航 record data 记录数据 explore v. 探索 do/carry out/conduct the research 做研究 arrive at/come to/draw a conclusion 得出结论 [Scientific spirit] question vt. 怀疑；质疑 devotion n. 奉献 返回导航 cautious adj. 谨慎的 creative adj. 有创造力的 innovative adj. 创新的 persistent adj. 执着的 persevering adj.　　　　坚韧不拔的 determined adj. 坚定的 返回导航 [Influence] advance v. 进步 transformation n. 改革 safety n. 安全 breakthrough n. 重大进展 trace v. 追溯 convenience n. 方便；便利 update v. 使现代化；更新 返回导航 efficiency n. 效率 benefit from/by... 得益于…… make a difference to... 对……有影响 make contributions to... 为……做贡献 improve the quality of life 提高生活质量 play an important role in... 在……方面起着重要作用 have a great influence on... 对……有很大影响 返回导航 话题佳句 1.Because scientists dedicate their lives to research and experiment, they often make discoveries that change our understanding of the world. 因为科学家们将自己的生命奉献给了研究和实验，他们常常会有改变我们对世界认知的发现。 返回导航 2.As technology advances, scientists are able to explore deeper into space, which leads to new questions about the origins of the universe and our place within it. 随着技术的进步，科学家能够更深入地探索太空，这引发了关于宇宙起源以及我们在其中位置的新问题。 返回导航 Period 1　Reading and Thinking 11 精读课文 语篇理解 1 自查语基 知能落实 2 内 容 索 引 创意课堂 点面突破 3 课堂微练 即时检验 4 精读课文 语篇理解 PART 01 第一部分 13 What does the passage mainly talk about? A．How John Snow found the cause of cholera and defeated it. B．The cause of cholera was polluted water. C．The source of all drinking water should be examined. D．John Snow was a well-known doctor in London. √ 〈教材助读＋语基默写〉见分册本 返回导航 deadly cause outbreak marked water polluted infected clean decrease 返回导航 1．What does the word “KING” imply in the title of this passage? A．The name of cholera. B．The causes of cholera. C．Cholera spreads fast. D．Cholera is powerful and hard to cure. √ 返回导航 2．Why did John Snow become frustrated? A．An outbreak of cholera hit Europe. B．Millions of people died from cholera. C．Nobody knew how to prevent or treat cholera. D．Doctors had two contradictory theories about cholera. √ 返回导航 3．What's the purpose of this passage? A．To show John Snow was a famous doctor. B．To present John Snow's method of disease research. C．To introduce John Snow's life and important achievements. D．To describe how John Snow stopped the spread of cholera. √ 返回导航 4．Where does this passage probably come from? A．A newspaper.　　　 B．A public speech. C．A book review. D．A TV interview. √ 返回导航 1．Cholera used to be one of the most feared diseases in the world，until a British doctor，John Snow, showed how it could be overcome.(Para.1) [分析]　本句是复合句。主句是“Cholera used...the world”，until引导__________从句；其中a British doctor与John Snow是同位关系，是从句的主语，从句谓语动词showed后是how引导的______从句。 [翻译]　____________________________________________________ ________________________________________ 时间状语 宾语 在英国医生约翰·斯诺向人们展示如何战胜霍乱之前，霍乱曾是世界上最令人恐惧的疾病之一。 返回导航 2．It seemed that the woman liked the water from the pump so much that she had it delivered to her house every day.(Para.3) [分析]　本句是复合句。句中第一个that引导______从句；句中第二个that引导__________从句，其中含有“have sth. done”结构。 [翻译]　____________________________________________________ ______________________________ 表语 结果状语 这名妇女似乎非常喜欢从水泵抽上来的水，以至于每天都让人把那里的水运到家里来。 返回导航 3．Through Snow's tireless efforts，water companies began to sell clean water，and the threat of cholera around the world saw a substantial decrease.(Para.5) [分析]　本句是由and连接的并列句。在第一个分句中，Through Snow's tireless efforts是介词短语作______状语；在第二个分句中，saw是谓语动词，意为“经历；目睹”，可以理解为______修辞。 [翻译]　_____________________________________________________ ______________________________ 方式 拟人 经过斯诺的不懈努力，供水公司开始销售洁净的水，世界各地的霍乱威胁大幅度降低。 返回导航 Cholera was one of the most feared 1._________(disease) in the past.In the early 19th century, 2._____ an outbreak of cholera hit Europe, millions of people died from the disease.John Snow, a famous doctor, was determined 3.___________(destroy) cholera once and for all. diseases when to destroy 返回导航 There were two theories about cholera at that time.One was 4._____ bad air caused cholera and the other was that cholera was caused by an infection from germs in food or water.Snow subscribed 5.___ the second theory.He began to investigate, 6.________(mark) on a map the exact places where all those who died 7.__________(live). 8.___________(eventual), he found the evidence for the second theory. Through Snow's tireless efforts, the threat of cholera around the world saw 9.__ substantial decrease. John Snow transformed the way of studying diseases. Therefore, he 10.______________(consider) the father of modern epidemiology. that to marking had lived Eventually a is considered 返回导航 1．If you were a doctor，how would you plan to stop the spread of a highly contagious (有传染性的) disease? ___________________________________________ 2．What do John Snow and Zhong Nanshan have in common? ___________________________________________ 答案：Open answers. 返回导航 自查语基 知能落实 PART 02 第二部分 26 Ⅰ.阅读词汇·识记 选出与单词对应的汉语释义 1．cholera n.　　　　　 A．流行病学 2．diarrhoea n. B．腹泻 3．dehydration n. C．微生物；细菌；病菌 4．germ n. D．霍乱 5．pump n. E．泵；抽水机；打气筒 6．epidemiology n. F．脱水 答案：1～5.DBFCE　6.A 返回导航 Ⅱ.核心词汇·练通 根据语境及汉语提示写出正确的单词 1．______________ statements　　相互矛盾的论述 2．__________ appliances 家用电器 3．take the ______ 承担责任 4．turn the _______ 转动把手 5．a _____ between exercise and health 运动和健康之间的联系 contradictory household blame handle link 返回导航 6．____ material 原材料 7．____________ sums of money 大笔的钱 8．a sharp _________ in temperature 温度急剧下降 9．__________ data 统计数据 10．under a ___________ 在显微镜下 raw substantial decrease statistic microscope 返回导航 Ⅲ.拓展词汇·用活 根据提示写出相应的单词 1．_______ [sI'vIə(r)] adj.极为恶劣的；十分严重的；严厉的→severely adv.严重地；严厉地 2．___________ [frʌ'streItId] adj.懊恼的；沮丧的；失意的→frustrate vt.使沮丧；挫败；阻止→frustration n．懊恼；挫折→frustrating adj.令人懊恼的；令人沮丧的 3．__________ [In'fekʃn] n．感染；传染→infect vt.使感染；传染→infectious adj.传染性的；感染的(尤指通过呼吸) severe frustrated infection 返回导航 4．__________ [səb'skraIb] vi.认购(股份)；定期订购；定期交纳(会费)→subscription n. 订购；订阅(费)；用户费；定期捐款 5．______ [pruːf] n．证据；证明；检验→prove v．证明；证明是 6．_________ ['mʌltIpl] adj.数量多的；多种多样的→multiply v．乘以；迅速增加；繁殖 7．________ [sə'spekt] vt.& vi. 怀疑；疑有；不信任 ['sʌspekt] n. 犯罪嫌疑人；可疑对象→suspicion n．怀疑；嫌疑→suspicious adj. 怀疑的；可疑的 subscribe proof multiple suspect 返回导航 8．_____________ [ˌIntə'venʃn] n．介入；出面；干涉→intervene v．介入；出面；插话 9．_____ [pjʊə(r)] adj.干净的；纯的；纯粹的→purify v．净化→purely adv.仅仅；完全→purity n．纯净；纯洁 10．__________ [træns'fɔːm] vt.使改观；使改变形态 vi.改变；转变→transformation n．变化；转变；改观 intervention pure transform 返回导航 Ⅳ.重点短语·再现 根据语境及汉语提示填入合适的短语 1．He agrees to the view that we can tackle the severe problem in this way _________________(彻底地). 2．___________(一般而言), people are more aware of environmental issues today than they were in the past. 3．This morning, several classmates and I ______________(同意) the idea that we went to pick up rubbish in People's Park. once and for all In general subscribed to 返回导航 4．_______________(由于) destroying the forests, the desert has covered the land in the last few years. 5．It is __________(幸亏) the headteacher's guidance that these students can face difficulties bravely and confidently. As a result of thanks to 返回导航 Ⅴ.重点句型·呈现 根据课文语境及汉语提示补全句子 1．until引导时间状语从句 Cholera used to be one of the most feared diseases in the world, ____________________________________________________________ (在英国医生约翰·斯诺向人们展示如何战胜霍乱之前).(Para.1) 2．because引导原因状语从句 As a young doctor, John Snow became frustrated _________________ ___________________________________(由于无人知道如何预防或治疗霍乱).(Para.1) until a British doctor, John Snow, showed how it could be overcome because no one knew how to prevent or treat cholera 返回导航 3．“so...that...”意为“如此……以至于……” He discovered that in two particular streets the cholera outbreak was _____________________________________________________(非常严重，以至于10天内就有500多人死亡).(Para.2) 4．where引导定语从句 Snow began by marking on a map the exact places ___________________________________(那些死去的人曾经居住过的地方).(Para.3) so severe that more than 500 people died in ten days where all those who died had lived 返回导航 5．“it seems/seemed that...”意为“似乎/好像……” _________________________________________________________(这名妇女似乎非常喜欢从水泵抽上来的水) that she had it delivered to her house every day.(Para.3) 6．“have sth.done”意为“让/请某人做某事、使某事被做” Accordingly, he ___________________________________(让人拆掉了水泵的把手) so that it could not be used.(Para.3) It seemed that the woman liked the water from the pump so much had the handle of the pump removed 返回导航 7．无生命名词作主语 Through Snow's tireless efforts, water companies began to sell clean water, and __________________________________________________ ________________(世界各地的霍乱威胁大幅度降低).(Para.5) the threat of cholera around the world saw a substantial decrease 返回导航 创意课堂 点面突破 PART 03 第三部分 　　frustrated adj. 懊恼的；沮丧的；失意的 【经典例句】 Frustrated and disappointed, I felt as if I were thrown into a world of limitless darkness. 既沮丧又失望，我感觉自己好像被扔进了一个无尽的黑暗世界之中。 返回导航 (1)be/feel frustrated at/with... 对……感到懊恼/沮丧 (2)frustrate vt. 使沮丧；挫败；阻止 frustration n. 懊恼；挫折 frustrating adj. 令人懊恼的；令人沮丧的 返回导航 【单句语法填空/完成句子】 (1)It's ____________(frustrate) to plan an outdoor activity, but have it canceled due to unexpected bad weather. (2)If you let ____________(frustrate) control your actions, you might make decisions you'll later regret. (3)我对自己在比赛中的糟糕表现感到沮丧，我的眼睛里涌出懊恼的泪水。 __________________________________________________ in the contest and tears of regret welled up in my eyes.[读后续写之情绪描写] frustrating frustration I was/felt frustrated at/with my poor performance 返回导航 　　　　subscribe vi.认购(股份)；定期订购；定期交纳(会费) 【经典例句】 Most scientists subscribe to the view that the increase in the earth's temperature is due to the burning of fossil fuels. 大多数科学家都赞同这种观点：地球温度的升高是由燃烧化石燃料引起的。 返回导航 (1)subscribe to　　 同意；赞同；订购；订阅；捐助 subscribe...to... 在……上签署……； 向……捐…… (2)subscription n. 订购；订阅(费)；用户费；定期捐款 subscriber n. 订阅人；订购者；定期捐款者 返回导航 【单句语法填空/完成句子】 (1)He subscribed ___ the contract after carefully recalling all the terms and conditions. (2)She enjoys reading magazines and has several ______________(subscribe) to her favorite publications. (3)许多人都认同这样一个事实：长白山是众多珍稀动植物的家园。 Many people _______________________________________________ ____________________________________．[应用文写作之景点介绍] to subscriptions subscribe to the fact that Changbaishan is home to a great diversity of rare plants and animals 返回导航 suspect vt.& vi. 怀疑；疑有；不信任 n．犯罪嫌疑人；可疑对象 【经典例句】 I suspect that the meeting will be postponed due to the heavy snowfall. 我怀疑会议会因为大雪而推迟。 返回导航 (1)suspect sb./sth. to be... 怀疑/猜想某人/某物是…… suspect sb. of (doing) sth.　　 怀疑某人(做过)某事 suspect that... 怀疑/认为……(尤指坏事可能属实或发生) (2)suspicion n. 怀疑；嫌疑 suspicious adj. 可疑的；怀疑的 返回导航 【单句语法填空/一句多译】 (1)__________(suspect) of violating traffic rules, he was questioned by the police. (2)We suspected this man ______(be) a key player in the organization, but we didn't have enough proof. Suspected to be 返回导航 (3)老板怀疑他从公司拿了错的文件。 →The boss ________________________________________________ ______________________． →The boss ________________________________________________ ______________． suspected him of taking the wrong document away from the company suspected that he took the wrong document away from the company 返回导航 blame vt.把……归咎于；责怪；指责 n.责备；指责 【经典例句】 Even though it was a team decision, Sarah decided to take the blame for the project's failure.　尽管这是一个团队的决定，萨拉还是决定为项目的失败承担责任。 返回导航 (1)blame sb. for (doing) sth. 　　　　　　 因(做)某事而责备某人 blame sth. on... 把某事归咎于…… be to blame (for sth.) (对某事)负有责任(主动形式表示被动意义) (2)take/bear the blame for... 为……承担责任 put/lay/place the blame for sth. on... 把某事归咎于…… 返回导航 【单句语法填空/一句多译】 (1)In my opinion, Li Hua, who broke the school rules, was _________(blame). (2)教练把比赛的失利归咎于队员们，批评他们在比赛中缺乏努力。 →The coach ____________________________， criticizing their lack of effort during the game.(blame v．) to blame blamed the players for the loss 返回导航 →The coach _____________________________， criticizing their lack of effort during the game.(blame v．) →The coach ______________________________________________, criticizing their lack of effort during the game.(blame n．) blamed the loss on the players put/laid/placed the blame for the loss on the players 返回导航 link n.联系；纽带 vt.把……连接起来；相关联 【经典例句】 (2022·新高考全国卷Ⅰ)Thinking of the race, David lowered his head, and his uncertainty was linked to/with his lack of confidence. 想到比赛，戴维低下头，他的不确定与他缺乏信心有关。 (1)There is a link between...and...　……与……之间有联系。 (2)link...to/with... 将……和……联系/连接起来 be linked to/with... 与……有联系 返回导航 【单句语法填空/完成句子】 (1)(译林选必二U3)Up to now, more than 360 acupuncture points have been identified, each _______(link) to a different part of the body. (2)Scientists have linked increased levels of carbon dioxide in the atmosphere ________ global warming. (3)研究人员发现规律的运动与改善的心理健康之间存在联系。 Researchers have found ______________________________________ ______________________________． linked to/with there is a link between regular exercise and improved mental health 返回导航 decrease n.减少；降低；减少量　vt.& vi.(使大小、数量等)减少；减小；降低 【经典例句】 The data shows that the past year saw a sharp decrease in the number of people who liked group travel. 数据显示，在过去的一年里喜欢团体旅游的人数急剧减少。 返回导航 (1)on the decrease/decline　 正在减少/降低 on the increase/rise 正在增加/上升 a decrease in... 在……方面减少 (2)decrease (from...) to... (从……)减少到…… decrease by... 减少了…… decrease in... 在……方面减少 返回导航 【单句语法填空/词汇升级】 (1)After the new policy was implemented, traffic accidents in the city decreased ___ nearly 35%. (2)The temperature is expected to decrease ___ below freezing by tomorrow morning. (3)The number of smokers in the country is decreasing as more people become health-conscious. →The number of smokers in the country is ________________ as more people become health-conscious. by to on the decrease 返回导航 thanks to 幸亏；由于 【经典例句】 (2024·新高考全国卷Ⅰ读后续写)I told him that thanks to his generosity and timely help, everything had gone smoothly. 我告诉他，由于他的慷慨和及时的帮助，一切都进行得很顺利。 表示原因的短语还有because of、 on account of、 as a result of、 due to、 owing to等，常在句中作状语，due to、 owing to在句中也可作表语。 返回导航 【单句语法填空/完成句子】 (1)She was unable to attend the party ___ account of her busy schedule. (2)She was promoted ___ a result of her outstanding performance during the project. (3)Thanks ___ the heavy rain, the match was postponed, and we had to wait another week.　 (4)我坚信你杰出的成就是因为你的勤奋工作和不懈努力。 I hold the strong belief that your outstanding success is ____________________________________________________． on as to due to/owing to your hard work and tireless efforts 返回导航 transform vt.使改观；使改变形态 vi.改变；转变 【经典例句】 (教材P3)Moreover, in his use of maps and statistics, Snow transformed the way scientists study diseases. 此外，在他使用地图和数据的过程中，斯诺改变了科学家研究疾病的方式。 (1)transform...into...　使……转变成…… (2)transformation n. 变化；转变；改观 返回导航 【单句语法填空/完成句子】 (1)The health security systems of many countries are undergoing considerable _______________(transform). (2)通过辛勤工作和奉献，她得以将自己的梦想变为现实。 Through hard work and dedication, ___________________________ ______________________． transformation she was able to transform her dream into reality 返回导航 until引导时间状语从句 【经典例句】 (教材P2)Cholera used to be one of the most feared diseases in the world, until a British doctor, John Snow, showed how it could be overcome. 在英国医生约翰·斯诺向人们展示如何战胜霍乱之前，霍乱曾是世界上最令人恐惧的疾病之一。 返回导航 until引导的时间状语从句，若主句的谓语动词为延续性动词，那么主句应用肯定形式；若主句的谓语动词为非延续性动词，那么主句应用否定形式，构成“not...until...”句型。 (1)“not...until...”意为“直到……才……”，在此句型中，not until可以置于句首，此时主句用部分倒装； (2)“not...until...”的强调句型为“It is/was not until...that...”。 返回导航 【完成句子/句式升级】 (1)直到一个小时后，我们才到达目的地。 We _________________________________________________． (2)I didn't realize the significance of team work until I took part in the basketball team. →____________________________________________________the significance of team work.(倒装) didn't reach our destination until an hour later Not until I took part in the basketball team did I realize 返回导航 →__________________________________________________________ the significance of team work.(强调句型) It was not until I took part in the basketball team that I realized 返回导航 “so...that...”意为“如此……以至于……” 【经典例句】 (教材P2)He discovered that in two particular streets the cholera outbreak was so severe that more than 500 people died in ten days. 他发现霍乱在两条特定的街道上暴发得非常严重，以至于10天内就有500多人死亡。 返回导航 返回导航 【完成句子/一句多译】 (1)音乐会上有这么多人，以至于很难走动。 There were _______________________________________________ ____________________． (2)她有着如此丰富的想象力，以至于能创作出吸引许多读者的精彩故事。 She __________________________________ she could create amazing stories that attract many readers. so many people at the concert that it was difficult to move around had such a vivid imagination that 返回导航 (3)他们遇到了如此具有挑战性的一个问题，以至于他们花了数周时间才找到解决方案。 →They faced _______________________________ it took them weeks to find a solution.(so...that...) →They faced ________________________________ it took them weeks to find a solution.(such...that...) →__________________________________________________________ __________it took them weeks to find a solution.(倒装) so challenging a problem that such a challenging problem that So challenging a problem/Such a challenging problem did they face that 返回导航 课堂微练 即时检验 PART 04 第四部分 Ⅰ.品句填词 1．The poems may not make sense and even seem ______________(相互矛盾的), but they are easy to learn and recite. 2．Her enthusiasm for painting _________(感染) everyone around her, and soon the whole class picked up brushes. 3．The fire department said the blaze was s_________ to be caused by an electrical fault. contradictory infected uspected 返回导航 4．_______(指责) for the breakdown of the school computer network, Jane was in low spirits. 5．The teacher's encouragement t___________ the shy student, and he began to participate actively in class discussions. 6．The economic crisis had s______ consequences for the country, and it took years to recover fully. 7．Disappointed and f___________， the poor man made his way back to his family. 8．The number of visitors to the museum has __________(下降) by nearly 6% in the past few years. ransformed evere rustrated decreased Blamed 返回导航 Ⅱ.词块运用 1．He ______________________________________________________ _____________________(对收到回复将会花费多久感到沮丧) from the customer service. 2．The question remains whether your parents will ______________________________(同意你的旅行计划). was/felt frustrated at/with how long it would take to get a response subscribe to your travel plan 返回导航 3．She _______________________________________________(被怀疑参与了抢劫), but there was no concrete evidence. 4．It seemed that other factors may also _________________________ ________________________(对他被免职负责). 5．____________________________________(幸亏有他的家人的支持), he was able to pursue his dream of becoming a musician. was suspected of being involved in the robbery be to blame for his being removed from his position Thanks to the support of his family 返回导航 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 Dear fellow students， It's my great honor to deliver a speech entitled Chinese Youth of the New Era. 1._______________________________________________ _____________ (过去几十年见证了我们社会的快速发展；无生命名词作主语).To answer the call of the great time, in my opinion, we are supposed to equip ourselves with the following valuable qualities. The past decades have seen the rapid development of our society 返回导航 First and foremost, setting a proper goal is essential 2.___________________________________________________________(因为没有远大的志向就会一事无成；because引导原因状语从句). What's more, our life is a long journey 3._________________________ _______________________(在这个旅程中我们应该勇敢地去面对各种挑战；where引导定语从句). Therefore, a sense of responsibility will be the key. Most importantly, because nothing could be achieved without a great ambition where we should be brave to face various challenges 返回导航 knowledge 4.________________________________________________ (在现代社会中扮演着如此重要的角色以至于； so...that...) it has become the basis of our development.So we are expected to work hard and 5._____________________________________(提高我们的综合能力；have sth. done). plays so important a role in modern society that have our general competence improved 返回导航 Naturally 6._______________________________________(似乎将有无数的障碍；it seems/seemed that...) in the years to come. However, it is not until we commit ourselves to the national construction that we can realise our Chinese Dream, making our country more prosperous. it seems that there will be countless barriers 返回导航 $