UNIT 12 SECTION 2 LESSON 1 SCIENTIFIC BREAKT HROUGHS-【创新教程】2025-2026学年高中英语选择性必修第四册五维课堂同步课件PPT（北师大版）

2026-04-15

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教辅

山东鼎鑫书业有限公司

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资源信息

学段	高中
学科	英语
教材版本	高中英语北师大版选择性必修第四册
年级	高二
章节	Lesson 1 Scientific Breakthroughs
类型	课件
知识点	-
使用场景	同步教学-新授课
学年	2026-2027
地区（省份）	全国
地区（市）	-
地区（区县）	-
文件格式	PPTX
文件大小	1.60 MB
发布时间	2026-04-15
更新时间	2026-04-15
作者	山东鼎鑫书业有限公司
品牌系列	创新教程·高中五维课堂同步
审核时间	2026-02-10
下载链接	https://m.zxxk.com/soft/56419565.html
价格	4.00储值（1储值=1元）
来源	学科网

摘要：

该高中英语课件围绕“创新”主题，聚焦20世纪科学突破（如爱因斯坦相对论、青霉素发现等），通过课文对照释疑、新知突破等模块，搭建从语篇理解到词汇句型学习的支架，衔接医学、通信等领域创新内容。其亮点在于采用“四翼”考查分层训练词汇句型，提升语言能力，结合科学家案例培养思维品质（如分析发现逻辑），渗透文化意识（科学先驱贡献）。教师可借助系统资源高效教学，学生能在探究中构建知识体系，提升综合素养。

内容正文：

SECTION Ⅱ LESSON 1 SCIENTIFIC BREAKTHROUGHS UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 课文对照释疑新知点点突破 01 02 课文篇章理解 03 要点层层精析 04 04 05 课时素养提升英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 课文对照释疑下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION 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课时作业点击进入WORD链接下一页上一页返回导航英语（BSD）·选择性必修第四册 UNIT 12 INNOVATION [教材原文] If you had to choose the single most important discovery of the 20th century, you would have a real problem on your hands.In just 100 years, the world has changed completely.Amazing discoveries were made in medicine, communications and transport, not to mention our knowledge of the world and space. Medical advances ranged from discovering the causes of diseases under microscopes to staging operations to replace diseased organs with donated ones.Communications changed with the introduction of mobile phones, and the way we correspond went from writing letters to emailing and sending instant messages.We started flying around the world, launching satellites into orbit and, at the same time, scientists figured out how to split the atom, previously thought to be the smallest particle of matter in the universe. Although it is impossible to choose the most important discovery, it is possible to single out a few pioneers of the 20th century.Here are some of them. One of the 20th century's premier scientists was Albert Einstein.In the summer of 1905, this outspoken young man was rocking his oneyearold baby when he was suddenly inspired.Subsequently, “E＝mc2” was born. It showed how a small piece of mass could produce an unbelievable amount of energy.Einstein then showed in his “theory of relativity”that not even time, mass or length are constant—they change according to our experience of them. In 1929, another important finding was made by biologist Alexander Fleming.Before he went on holiday, Fleming left a dish of bacteria in his laboratory.When he came back, he noticed something strange.He doublechecked and saw a blue mould in the dish around which the bacteria had been destroyed.This blue mould was in fact the natural form of penicillin, which Fleming perceived could be used to kill bacteria.A few years later, penicillin was being massproduced and helping to save the lives of millions.Fleming remained humble about the amazing outcome of his discovery.“Nature made penicillin，”he said, “I just found it.” During World War Ⅱ，when Fleming's discovery was first helping to cure people, the US Navy was looking for ways of improving the accuracy of their missiles.The navy turned to Eckert, an engineer, and Mauchly, a physicist, to deal with the problem and produce a machine to do the job in a joint effort.Although they only finished after the war in 1946, it did not matter. This huge machine was the world's first computer, but it was nothing like our computers today.It measured 100 feet long by over 10 feet high and weighed over 30,000 kilograms.With 18,000 tubes, thousands of circuits and 6,000 switches, it used so much energy that when it was turned on, the lights in the local town went out! With the development of computers, people expected to get more things done efficiently.During the Cold War, a “huge network”of computers was proposed by two American scientists.With computers talking to one another, it would enable government leaders to communicate with each other.By the end of the 1960s, some mininetworks were established, but only a few computers could connect to them.In 1990, Tim BernersLee invented the World Wide Web, which enabled computers all over the world to communicate with each other.Nowadays, life without the Internet for most people is unimaginable. These pioneers of the 20th century were all dedicated to improving the quality of human life on Earth.Human life on this planet has been transformed into a “global village”， with all the different countries linked in the chain of common interests.There is no doubt about it.Without the breakthroughs of these pioneers in science and technology, whether lucky or planned, the world as we know it today would be a completely different place. [汉语译文] 如果必须在20世纪重大发现中选出最重要的一项，这可不是件容易的事。在仅仅100年中，世界就完全变样了。医学、通信和交通方面都有惊人的发现，更别提我们对世界和太空的认识了。医学上的进步范围很广，从利用显微镜(microscope)揭示病因、施行手术、到用捐赠(donate)的器官做器官移植。移动电话的使用给通信业带来了改变，通信(correspond)方式从写信到发电子邮件和发送即时(instant)信息。我们开始坐飞机周游世界，把人造卫星(satellite)发射(launch)至轨道(orbit)。同时，科学家们发现了如何分裂(split)原子，在此之前，原子被认为是宇宙中最小的物质微粒(particle)。尽管不太可能选出哪项发现是最重要的，但是挑选20世纪的几位先驱还是可能的。例如以下几位。 20世界最杰出的(premier)科学家，阿尔伯特·爱因斯坦是其一。1905年夏天，这个坦率的(outspoken)年轻人给他一岁的孩子晃动摇篮时，突然受到启发。随后(subsequently)，“E＝mc2”诞生了。它证明了一小块物质可以产生巨大的能量。爱因斯坦随后在他的“相对(relativity)论”中指出，即使是时间、质量或长度也不是恒定不变的(constant)，它们根据我们对它们的感知而变化。 1929年，另一项重要的发现(finding)由生物学家(biologist)亚历山大·弗莱明发现了。在去度假之前，弗莱明在实验室里放了一个培养细菌的器皿。回来时，他注意到器皿里有点儿奇怪。经过反复检查，他发现器皿里有一种蓝色的霉菌(mould)，而霉菌周围的细菌已经被杀死了。这种蓝色的霉菌实际上是自然状态的青霉素(penicillin)，弗莱明认为(perceive)它可以用来杀死细菌。数年后，青霉素开始大量生产，帮助挽救了百万(million)人的生命。弗莱明对他发现的惊人结果(outcome)态度谦虚(humble)，他说：“是大自然创造了青霉素，我只是发现了它。” 第二次世界大战期间，正当弗莱明的发现首次用来帮助治愈疾病时，美国海军(navy)正在寻找提高导弹(missile)精度(accuracy)的方法。海军求助于工程师埃克特和物理学家(physicist)莫克利来解决这一问题，两人共同(joint)制造一台机器来完成这项工作。尽管机器在1946年战争结束后才制造出来，但没有关系。这台巨大的机器是世界上第一台计算机，但是与今天的计算机完全不同。它长100英尺，高10多英尺，重30 000多千克。它有18 000个阴极射线管(tube)，数千条电路(circuit)和6 000个开关，耗电量异常巨大，以至于当它启动的时候，当地所有的灯都熄灭了！随着计算机的发展，人们期望能有效地(efficiently)完成更多的事情。冷战期间，两位美国科学家提出(propose)建立一个计算机的“庞大网络”。计算机能互换信息，可使政府领导人相互沟通。到20世纪60年代末，一些小型网络已经建立起来，但只有少数计算机可以接入。1990年，蒂姆·伯纳·李发明了万维网，使世界各地的计算机能够相互通信。如今，对大多数人来说，没有互联网的生活是难以想象的。这些20世纪的先驱都致力于改善地球上人类的生活质量。不同国家因共同利益而连接起来，使得这个星球上人类的生活已经转变为“地球村”。毫无疑问，如果没有这些先驱取得的科技突破，无论这些突破是偶然发现的还是计划之中的，我们今天所熟知的世界将是一个完全不同的地方。 ●基础单词 1．　correspond　 vi.通信 2．　launch　 vt.发射；发动；开始从事 3．　satellite　 n．人造卫星；卫星 4．　orbit　 n．轨道；vi.&vt.沿轨道运行 5．　premier　 adj.最早的，首要的 6．　subsequently　 adv.后来；随后 7．　relativity　 n．相对性 8．　 finding 　 n．研究的结果，发现 9．　biologist　 n．生物学家 10．　perceive　 vt.察觉，注意到 11．　million　 n. 百万 12．　humble　 adj.谦虚的，谦卑的 13．　outcome　 n．结果，后果 14．　physicist　 n．物理学家 15．　joint　 adj.联合的，共同的，共有的 ●拓展单词 1．　scientific　 adj.科学(上)的→　science 　 n. 科学，学科，理科→　scientist 　 n. 科学家 2．　donate　 vi.&vt.捐献；捐赠→　donation　 n．捐款；捐赠物→　donator　 n．捐赠者 3．　instant　 adj.立刻的，马上的→　instantly　 adv.立刻，马上 4．　accuracy　 n．准确性；精准度；正确，准确→　accurate　 adj.准确的；精确的→ 　accurately　 adv.准确地→　inaccurate　 adj.不准确的 5．　constant　 adj.恒久不变的；持续不断的，经常发生的；n.常量，恒量→　constantly　 adv.经常地；持续不断地 6．　efficiently　 adv.有效率地，高效能地→　efficient　 adj.有效率的；高效的→　efficiency　 n．效率；效能 7．　propose　 vt.提出(某观点、方法等)→　proposal　 n. 提议，建议 1．range　 from　范围从……到…… 2．figure　 out　算出；想出 3．single 　out　挑出；挑选 4．turn　 to　求助于 5．be dedicated　 to 　doing 致力于；献身于 1．In the summer of 1905, this outspoken young man was rocking his oneyearold baby when he was suddenly inspired. 1905年夏天，这个直率的年轻人正在摇着他一岁大的孩子时，突然灵感就产生了。主语＋was/were doing ...when ...句型，表示“某人正在做某事，这时……”。 2．There is no doubt about it. 此事毋庸置疑。 There is no doubt....句型，表示“毫无疑问……”之意。 3．Without the breakthroughs of these pioneers in science and technology, whether lucky or planned, the world as we know it today would be a completely different place. 不管是幸运还是有计划的，如果没有这些科技先驱者的突破，我们今天所熟悉的这个世界将会是个完全不同的世界。 without 短语表示条件，相当于虚拟条件句。 Ⅰ.Scan the text and answer the following questions. 1．What is the main idea of the text? The text mainly tells us some 　scientists and their breakthroughs　. 2．Match the scientists with the breakthroughs. (1)Albert Einstein　　　 A．computer (2)Alexander Fleming B．World Wide Web (3)Eckert and Mauchly C．Theory of Relativity (4)Tim BernersLee D．Penicillin 答案　(1)C　(2)D　(3)A　(4)B Ⅱ.Choose the best answers according to the text. 1．Why would people have a real dilemma, if they had to choose the single most important discovery of the 20th century? A．Because different people have different ideas and it's difficult to choose. B．Because there were no great discoveries in the 20th century. C．Because there was no common standard to judge. D．Because so many amazing discoveries were made in medicine, communications，transport and many other fields，and they all had a great influence on the world. 2．How did Einstein think of the equation “E＝mc2”？ A．When he was at work. B．His assistant helped him. C．When he was rocking his oneyearold baby，he was inspired. D．His dream inspired him. 3．In what order are the pioneers arranged? A．Time.　　　　　 B．Logic. C．Space. D．Importance. 4．What's the original purpose of designing the first computer? A．To do some difficult experiments. B．To improve the accuracy of the missiles. C．To help people make mathematics calculations. D．To replace the missiles，becoming a new weapon. 5．In which section of a newspaper may this text appear? A．Education. B．History. C．Science. D．Entertainment. 答案：1－5　DCABC 1．scientific adj. 科学(上)的 (1)science n. 科学 (2)scientist n. 科学家 (3)scientifically adv. 科学地；系统地 ◆[经典佳句] Most students in our class go in for scientific activities. 我们班上大多数学生参加各项科学活动。 It's been scientifically proven that secondhand smoking is dangerous. 科学证明吸二手烟是危险的。 ◆[“四翼”考查]——基础性单句语法填空 ①It is of first importance to spread cultural and 　scientific　 (science) knowledge among the people. ②He explained 　scientifically　 (scientific) the most important questions of political economy. ③Madame Curie was a famous woman 　scientist　 (science) in the world. ◆[“四翼”考查]——应用性完成句子 ④He took 　a very scientific approach　 (一种非常科学的方法)to management. 2．donate vi.&vt. 捐献(器官)，献(血)；捐赠；捐献 (1)donate sth. to...把某物捐献给…… (2)donation n．捐款，赠送，捐赠(物) collect donations for... 为……募捐 make/give/present a donation to 捐赠 blood donation 献血 organ donation 器官捐赠 (3)donor n．捐赠者 ◆[经典佳句] Donate whatever clothes are left over. 捐赠任何所剩下的衣服。 He frequently donates large sums to charity. 他常常向慈善机构捐赠大笔钱款。 They made a generous donation to the Red Cross. 他们对红十字会慷慨捐助。 ◆[“四翼”考查]——基础性单句语法填空 ①We are collecting 　donations　 (donate) for the relief fund. ②All 　donated　 (donate) blood is tested for HIV and other infections. ③Over 90% of the goods in the charity shops 　are donated　 (donate) by the public. ④He donated thousands of pounds 　to　 charity. ◆[“四翼”考查]——应用性完成句子 ⑤　Donating blood　 is very glorious. 献血是非常光荣的。 ⑥If most breadwinners 　donate a day's pay to　 the Hope Project，then it will be hopeful. 如果大多数能赚钱自立的人把一天的工资捐给希望工程的话，那么希望工程就有希望了。 3．correspond vi. 通信 (1)correspond with 与……通信；符合，一致 correspond to 相当于；符合，一致 (2)corresponding adj.相应的；符合的 corresponding to 与……相一致 (3)correspondence n．通信；相关，相似；相当 keep up a correspondence with 与……保持通信 in correspondence with 与……一致；和……保持通信联系 ◆[经典佳句] All rights carry with them corresponding responsibilities. 一切权利都带有与之相应的责任。 Give each picture a number corresponding to its position on the page. 按所在页面位置给每一幅画编上相对应的数字。 He has kept up a correspondence with his friend for over a year now. 他现在跟他的一个朋友保持通信已有一年多了。 What she has just said isn't in correspondence with the views of the majority. 她刚才所说的同大多数人所持的观点不一致。 ◆[“四翼”考查]——基础性单句语法填空 ①Your account of events does not correspond 　to/with　 hers. ②You will understand perfectly that I cannot at present correspond 　with　 your father. ③Profits have risen by 15 percent compared with the 　corresponding　 (correspond) period last year. ④Their conclusions do not correspond 　to/with　 their original assumption. ⑤The editor welcomes 　correspondence　 (correspond) from readers on any subject. ◆[“四翼”考查]——应用性完成句子 ⑥There were two bedrooms to 　correspond with/to　 (与……相仿) the rooms downstairs. ⑦I have been 　in correspondence with　 (和……保持通信联系) him about the matter. 4．instant n. 瞬间；片刻adj.立即的；速食的；速溶的 (1)in an instant 立刻；马上 for an instant 一会儿 instant coffee 速溶咖啡 instant noodles 方便面 the instant (that) 一……就…… (2) instantly 一……就…… ◆[经典佳句] The instant I arrive，I'll phone you. 我一到就给你打电话。 It can provide students with instant feedback, including reports about their strengths and weaknesses. 它可以为学生提供即刻的反馈，包括关于他们的强项和弱项的报告。 The injured are in instant need of help. Please tell us instantly the doctors arrive. 伤者急需帮助。医生一到请立即告诉我们。 In an instant, he took off his coat and jumped into the water. 刹那间，他脱下外套，跳进水里。 ◆[“四翼”考查]——应用性完成句子 ①　The instant　 he got the news，Mr Wang hurried out of his house，and drove all the way to the hospital. 王先生一得到消息，就急忙跑出了家门，开车去了医院。 ②Please send me an email 　the instant/instantly　 you reach Yunnan. 请你一到云南就给我发封电子邮件。 ◆[“四翼”考查]——创新性一句多译 ③让我非常惊讶的是，她一读那封信就哭了起来。 a．Much to my surprise，she burst into tears 　instantly　 she read the letter. b．Much to my surprise，she burst into tears 　the instant　 she read the letter. 5．launch vt. 发射；发放，发起，开始从事；(使)船下水；(首次)上市，发行n. 发射；(产品)上市 (1)launch into 进入，投入；开始做，使下水；发射上天 launch on 引向……；向(市场)首次推出 launch a compaign 发起运动 launch an attack 发起进攻 launch a rocket发射火箭 (2)a book/product launch 书籍/产品的市场投放 launch pad 发射台 ◆[经典佳句] CASC plans to launch a satellite to study the global enviroment. 中国航天计划发射一颗卫星来研究地球环境。 Our school launched a campaign against waste of food. 我们学校发起了一场反对浪费食物的运动。 Jack's parents decided to launch him into science. 杰克的父母决定让他投身科学。 The manager has launched on yet another plan for cutting costs. 经理又着手推行另一个压缩成本的计划。 We have got good media coverage for the launch of the new model. 传播媒介对我们的新型产品投放市场作了有利的报道。 ◆[“四翼”考查]——基础性写出句中launch的词性及含义 ①The enemy launched an attack at 2 o'clock in the morning.　动词，发起　 ②The launch of their new machines in this factory received much media coverage.　名词，(产品的)上市　 ③He launched a new business when he was 30 years old.　动词，开始从事　 ④We have launched the first edition of Crazy American English magazine. 　动词，发行　 ◆[“四翼”考查]——应用性完成句子 ⑤It takes courage to 　launch into a new business　 (开始一项新的业务) in these difficult times. ⑥They're holding a big party to 　launch the new film　 (上映一部新电影) . 6．figure out 计算出；弄清楚；弄明白；发现 (1)I figure (that)．.. 我认为…… (2)figure n．数字，位数；人影，雕像，体形；知名人士形象；几何图形 a figure in black 一个黑衣人影 a leading/key figure 领军/关键人物 unemployment/sales/trade figures 失业/销售/贸易数字 have a good figure 有一个好身材 keep/watch one's figure 保持/注意保持身体 a fivesided figure 五边形 ◆[经典佳句] The study showed the animals had figured out how to apply what they learned about human faces during training to new faces in the testing stage. 研究表明，动物学会了怎样把在培训中了解的人脸应用到新面容测试阶段。 When you were trying to figure out what to buy for the environmentalist on your holiday list，fur probably didn't cross your mind. 当你在考虑为你的度假清单上的环保主义者买什么时，你可能不会想到皮草。 ◆[“四翼”考查]——基础性单句语法填空 ①I want to interview the great leader，because he is recognized as one of the greatest 　figures　(figure) in the world nowadays. ②If you don't understand something，you may research，study，and talk to other people until you figure it 　out　. 7．perceive vt. 觉察，注意到，发现；看待，理解 (1)perceive...as/to be/to have... 认为……是…… perceive sb./sth. doing sth. 看到某人/某物在做某事 perceive sb./sth. do sth. 察觉某人/某物做某事 perceive that...注意到…… (2)perception n．观念；洞察力；认识能力 ◆[经典佳句] We can perceive his sorrow by the looks on his face. 我们能从他的表情中觉察出悲伤。 Soon the boy perceived the mouse to be a dead one. 男孩很快发觉那只老鼠是死的。 They perceived a stranger wandering in the garden. 他们看到一个陌生人在花园里闲逛。 The patient was perceived to have difficulty in breathing. 发现病人呼吸困难。 I perceived that I could not make him change his mind. 我意识到我不能使他改变主意。 There is a general public perception that standards in schools are rising. 公众普遍认为，学校的水平都在上升。 ◆[“四翼”考查]——基础性单句语法填空 ①This discovery was perceived 　as　 a major breakthrough. ②On entering his house, we at once perceived him 　to be　 (be) tasteful. ③One of his goals is improving students' power of 　perception　 (perceive) in this matter. ④The thief was perceived 　to steal　 (steal) into the house. ⑤Adults learn 　what　 they perceive to be useful in their life situations. ◆[“四翼”考查]——应用性完成句子 ⑥I can't 　perceive any difference　 (发现任何差异) between these coins. ⑦Stress 　is widely perceived as　 (被广泛认为) contributing to heart disease. 8．propose vt. 提出(某观点、方法等)；建议，推荐；打算；计划；求婚 (1)propose (doing) sth. 提议(做)某事 propose sth. to sb. 向某人提议某事 propose sb. for 推荐某人(参加某组织)；提名某人(任某职) propose to sb. 向某人求婚 propose that...建议…… It is proposed that...有人建议…… (2)proposal n．提议；建议；求婚 make/submit/accept/reject a proposal 提出/提交/接受/拒绝一项建议 ◆[经典佳句] Tom proposed delaying our decision until the next meeting. 汤姆提议把我们的决定推迟到下次会议。 I would like to propose a vote of thanks to our host. 我提议向我们的主人表示感谢。 They will propose a new plan for their factory. 他们将为工厂提出一个新规划。 It was proposed that this matter (should) be considered at the next meeting. 有人提议，下次会议再研究此事。 I made a proposal that we (should) hold a meeting next week. 我建议我们下星期开个会。 ◆[“四翼”考查]——基础性单句语法填空 ①The plan must 　be proposed　 (propose) by the headmaster at once. ②The teachers proposed that they 　(should) go　 (go) to the National Museum of China. ③Usually the bride's father proposes a toast 　to　 the health of the bride and groom. ④Various 　proposals　 (proposal) were put forward by the employees for increasing sales. ⑤They proposed 　forming　 (form) a group to investigate the case. ⑥The 　proposal　 (propose) to close the hospital was rejected by a large majority. ◆[“四翼”考查]——应用性完成句子 ⑦He 　proposed to his girlfriend　 (向他的女朋友求婚) over a publicaddress system. ⑧She 　made a proposal　 (提议) that the book should be banned. ⑨　It was proposed that　 (有人提议) the president be elected for a period of two years. 1．(教材P53)There is no doubt about it. 此事毋庸置疑。 [句式结构] There is no doubt about ...意为“……毫无疑问”。 ◆[规律总结] (1)doubt用作名词时，在肯定句中用whether(不可用if)引导同位语从句；在否定句中用that引导同位语从句。 (2)动词doubt在肯定句中，后多跟if/whether引导的宾语从句；在否定/疑问句中后跟that引导的宾语从句。 ◆[经典佳句] There is no doubt that staying up is more likely to result in overanxiety. 毫无疑问，熬夜更有可能导致人过分焦虑。 There is still some doubt whether the autumn sports meet will be held in our school. 对于秋季运动会是否会在我们学校举行我们还有些怀疑。 I never doubt that special classes can help the gifted children to graduate earlier and take their place in life sooner. 我确信特殊班级能够帮助这些有天赋的学生提前毕业，更早地在生活中找到他们的位置。 —Did you doubt that I was wrong? —Yes，I admit that I did doubt whether/if you were wrong at first.But now there is no doubt that you are right.Facts have proved this without doubt. ——当时你怀疑我错了吗？ ——是的，我承认我当时的确怀疑你是否错了。但现在毫无疑问你对了。事实无可争辩地证明了这一点。 ◆[误区规避]——语法填空 Little did my teacher doubt　________　I would make it to the Qinghua University. (可能失误)填whether。 (正确表达)填that。 (错误分析)谨记此规律：当doubt与否定词连用时表示肯定意义，只能填that，不能填表示疑问的词whether(是否)。故填that。 ◆[“四翼”考查]——基础性单句语法填空 ①I have no doubt 　that　 he will come on time. ②She still doubted 　whether/if　 she could finish it herself. ③He has been admitted，and there's no doubt 　about　 it. ◆[“四翼”考查]——应用性完成句子 ④　I don't doubt that　 he is a brilliant scientist，but can he teach? 我不怀疑他是个出色的科学家，但他会教书吗？ ⑤　There is no doubt that　 he means to help，but in fact he just gets in the way. 他确实想帮忙，事实上却只是帮倒忙。 ⑥　I have no doubt that　 he will be elected. 我确信他会被选上。 ⑦　I doubt whether/if　 he will keep his word. 我怀疑他是否会遵守诺言。 2．(教材P53)Without the breakthroughs of these pioneers in science and technology，whether lucky or planned，the world as we know it today would be a completely different place. 不管是幸运还是有计划的，如果没有这些科技先驱者的突破，我们今天所熟悉的这个世界将会是个完全不同的世界。 [句式结构]　本句为without短语表达含蓄虚拟条件句(不含连词if的条件句)。 ◆[规律总结] (1)有时为了表达的需要，在虚拟语气中，不出现条件句，而是以介词短语、并列句、副词或非谓语动词的形式出现。这种句子我们称其为“含蓄条件句”。 (2)常见介词短语有without ...“没有……”；but for ...“要不是……”；常用连词有but“但是”；常用副词有or，otherwise“否则的话”等。 ◆[经典佳句] The ship would have sunk with all on board but for the efforts of the captain. 要不是因为船长的努力，我们就会连船带人都沉没了。 He would have given you more help，but he was so busy at that time. 他本可以给你更多的帮助，但那时他太忙了。 ◆[“四翼”考查]——基础性单句语法填空 ①　Without　 electricity，the world would be dark. ②I might have given you more help，　but　 I was too busy. ◆[“四翼”考查]——应用性同义句转换 ③If it hadn't been for your advice，I wouldn't have made such great progress. →　But for　 your advice，I wouldn't have made such great progress. ④If you don't spend time with happy people，your health could suffer. →Spend time with happy people，　otherwise　 your health could suffer. ◆[“四翼”考查]——创新性同义句改写 ⑤I couldn't have finished the work so soon without your help. →　I couldn't have finished the work so soon if you hadn't helped me.　(用if从句改写) →　I couldn't have finished the work so soon if it hadn't been for your help.　(用if it had not been for改写) →　I couldn't have finished the work so soon but for your help.　(用but for改写) $

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UNIT 12 SECTION 2 LESSON 1 SCIENTIFIC BREAKT HROUGHS-【创新教程】2025-2026学年高中英语选择性必修第四册五维课堂同步课件PPT（北师大版）

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【创新教程】2025-2026学年高中英语选择性必修第四册五维课堂同步课件PPT（北师大版）

高二英语第三方合辑 21 份文档

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