UNIT 12 SECTION Ⅱ LESSON1（学生版）-【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复习（北师大版）

英语(BSD)·选择性必修第四册 SECTION I LESSON 1 SCIENT 课文。对黑 [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 oper- ations 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,previ- ously 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 outspo- ken young man was rocking his one-year-old baby when he was suddenly inspired.Subsequently,"E= me2"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 labora- tory.When he came back,he noticed something strange.He double-checked and saw a blue mould in the dish around which the bacteria had been de- stroyed.This blue mould was in fact the natural form of penicillin,which Fleming perceived could be ·78· IFIC BREAKTHROUGHS 释疑 [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(sat- ellite)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(con stant),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(find ing)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 used to kill bacteria.A few years later,penicillin was being mass-produced and helping to save the lives of millions.Fleming remained humble about the amazing outcome of his discovery."Nature made penicil- lin,"he said,“I just found it..” During World WarⅡ，when Fleming's discov ery 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 engi- neer,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 kilo- grams.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 ex- pected to get more things done efficiently.During the Cold War,a“huge network”of computers was proposed by two American scientists.With comput- ers talking to one another,it would enable govern- ment leaders to communicate with each other.By the end of the 1960s,some mini-networks were estab- lished,but only a few computers could connect to them.In 1990,Tim Berners-Lee 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 unimag- inable. 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 trans- formed into a "global village",with all the different countries linked in the chain of common interests. There is no doubt about it.Without the break- throughs of these pioneers in science and technolo- gy,whether lucky or planned,the world as we know it today would be a completely different place. ·79· UNIT 12 INNOVATION 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30000多千克。它 有18000个阴极射线管(tube),数千条 电路(circuit)和6000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。 英语(BSD)·选择性必修第四册 新知。 重点词汇 ●基础单词 1 vi.通信 2. t.发射；发动；开始从事 U n.人造卫星；卫星 4. n.轨道； vi.&.vt.沿轨道运行 5. adi.最早的，首要的 6 adv.后来；随后 7. n.相对性 8. .研究的结果，发现 9. n.生物学家 10. t.察觉，注意到 11. n.百万 12. adj.谦虚的，谦卑的 13. n.结果，后果 14. n.物理学家 15. adj. 联合的，共同的，共有的 ●拓展单词 1 adj.科学（上）的 n.科学，学科，理科→ n.科学家 2 .&t.捐献；捐赠→ n.捐款；捐赠物→ n.捐赠者 3 adj.立刻的，马上的→ adv.立刻，马上 n.准确性；精准度；正确，准 确→ adj.准确的；精确的→ adu.准确地→ adj.不准确的 5 adj.恒久不变的；持续不断的，经 常发生的；n.常量，恒量→ adv.经常地；持续不断地 8 点点突破 adv.有效率地，高效能地→ adj.有效率的；高效的→ n.效率；效能 > t.提出（某观点、方法等）→ n.提议，建议 核心短语 1.range 范围从…到… 2.figure 算出；想出 3.single 挑出；挑选 4.turn 求助于 5.be dedicated doing致力于；献身于 框架句型 1.In the summer of 1905,this outspoken young man was rocking his one-year-old ba- by 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 pio- neers 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。 课文。 ● I.Scan the text and answer the following questions. 1.What is the main idea of the text? The text mainly tells us some 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 Berners-Lee D.Penicillin 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 impor- tant 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,trans- port and many other fields,and they all had a great influence on the world. 要点 核心词汇 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 scientif- ic activities. 我们班上大多数学生参加各项科学活动。 It's been scientifically proven that second- hand smoking is dangerous. 科学证明吸二手烟是危险的。 8 UNIT 12 INNOVATION 篇章理解 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 one-year-old 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 calcu- lations. 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. 层层精析 -● ◆[“四翼”考查]—基础性 单句语法填空 DIt is of first importance to spread cultural and (science)knowl- edge among the people. ②He explained (scien- tific)the most important questions of po- litical economy. 3Madame Curie was a famous woman (science)in the world. ◆[“四翼”考查]一应用性 完成句子 ④He took (一种非常科学的方法)to man agement. 英语(BSD)·选择性必修第四册 2.donate vi..&vt.捐献（器官），献（血）；捐赠； 捐献 (I)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]一基础性 单句语法填空 ①We are collecting (donate) for the relief fund. ②AIl (donate)blood is test- ed for HIV and other infections. 3Over 90%of the goods in the charity shops (donate)by the public. 4He donated thousands of pounds charity. ◆[“四翼”考查]—应用性 完成句子 ⑤ is very glorious. 献血是非常光荣的。 ⑥If most breadwinners 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 (l)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 82 (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 re- sponsibilities. 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 correspon- dence 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]一基础性 单句语法填空 DYour account of events does not corre- spond hers. 2You will understand perfectly that I can- not at present correspond your father. 3Profits have risen by 15 percent com- pared with the cor- respond)period last year. 4Their conclusions do not correspond their original assumption. ⑤The editor welcomes (correspond)from readers on any sub ject. ◆[“四翼”考查]一应用性 完成句子 6There were two bedrooms to (与…相仿)the rooms down stairs. ⑦I have been (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 (l)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 feed- back,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]一应用性 完成句子 ① 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 you reach Yunnan. 请你一到云南就给我发封电子邮件。 ◆[“四翼”考查]一创新性 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 she read the letter. b.Much to my surprise,she burst into tears she read the letter. ·83 UNIT 12 INNOVATION 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]一基础性 写出句中launch的词性及含义 D The enemy launched an attack at 2 o'clock in the morning. 2The launch of their new machines in this factory received much media coverage. 3He launched a new business when he was 30 years old. We have launched the first edition of Crazy American English magazine. 英语(BSD)·选择性必修第四册 ◆[“四翼”考查]一应用性 完成句子 ⑤It takes courage to (开始一项新的业务)in these difficult times. 6They're holding a big party to (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 five-sided 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 holi- day 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 DI want to interview the great leader,be cause he is recognized as one of the grea- test (figure)in the world nowa- days. 2If you don't understand something,you may research,study,and talk to other people until you figure it ·84 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]一基础性 单句语法填空 DThis discovery was perceived major breakthrough. 2On entering his house,we at once per ceived him (be)tasteful. 3One of his goals is improving students power of perceive) in this matter. 4The thief was perceived (steal) into the house. ⑤Adults learn they perceive to be useful in their life situations. ◆[“四翼”考查]一应用性 完成句子 ⑥Ican't (发 现任何差异)between these coins. ⑦Stress (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.tosb.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 fac- tory. 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]—一基础性 单句语法填空 ①The plan must (pro pose)by the headmaster at once. 2The teachers proposed that they (go)to the National Museum of China. 3 Usually the bride's father proposes a toast the health of the bride and groom. ④Various (proposal)were put forward by the employees for in- creasing sales. ⑤They proposed (form)a group to investigate the case. ⑥The (propose)to close the hospital was rejected by a large ma- jority. ·85 UNIT 12 INNOVATION ◆[“四翼”考查]一应用性 完成句子 ⑦He (向他的女朋友求婚)over a public-ad- dress system. ⑧She (提议) that the book should be banned. ⑨ (有人提议) the president be elected for a period of two years. 重点句型 1.(教材Ps3)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f)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 over-anxiety. 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。 英语(BSD)·选择性必修第四册 ◆[误区规避]一语法填空 Little did my teacher doubt 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]一基础性 单句语法填空 ①I have no doubt he will come on time. ②She still doubted she could fin- ish it herself. 3 He has been admitted,and there's no doubt it. ◆[“四翼”考查]一应用性 完成句子 ④ he is a bril- liant 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 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 he will be elected. 我确信他会被选上。 ⑦ he will keep his word. 我怀疑他是否会遵守诺言。 2.(教材P3)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 dif- ferent 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f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”。 ·86 (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]一基础性 单句语法填空 ① electricity,the world would be dark. 2I might have given you more help, I was too busy. ◆[“四翼”考查]一应用性 同义句转换 3 If it hadn't been for your advice,I wouldn't have made such great pro- gress. your advice,I wouldn't have made such great progress. DIf you don't spend time with happy peo- ple,your health could suffer. >Spend time with happy people, your health could suffer. ◆[“四翼”考查]一创新性 同义句改写 5I couldn't have finished the work so soon without your help. (用f从句改写) (用if it had not been for改写) (用but for改写) C温馨提西 学习至此，请完成配套训练UNIT12 SECTIONⅡ英语(BSD)·选择性必修第四册 (9)They also hold the opinion that it is beneficial to students with the poor self-control ability and helps them develop good study habits. (10)Not only does attending after-school classes waste a lot of money,but it also takes up the time of developing hobbies. (11)We should make time for what we are interested in to make study more interesting. 连句成篇 [参考范文] Today in our English class,a discussion was held about whether we students should attend after- school classes,and we voted on it. Some students are for attending after-school classes,thinking it a better way to make up for the missing lessons at school so that they can improve their grades more quickly.They also hold the opin- ion that it is beneficial to students with the poor self- control ability and helps them develop good study habits.However,the others think it may increase their burden and lead to learning-weariness.Besides, not only does attending after-school classes waste a lot of money,but it also takes up the time of develo- ping hobbies. In my opinion,moderate after-school classes contribute to better school performance.But we should make time for what we are interested in to make study more interesting. 实战演练 [参考范文] Should we click for friends? Nowadays,the arrival of the digital age brings people increasing ease in surfing the Internet,enab- ling us to make friends online more easily.However, whether we should click for friends has gradually been brought into focus. On the one hand,the Internet provides us with a platform where we can easily get acquainted with people who share our interests.Besides,social media tools make us aware of what our friends are occupied with and help maintain friendship.On the other hand,making friends online might expose us to the risk of being cheated and privacy leaks. We cannot throw the baby out with the bathwa- ter.Just be careful when making friends,both in vir- tual reality and reality. ·11 UNIT 12 INNOVATION SECTION I TOPIC TALK 新知点点突破 重点词汇 基础单词 1.well-being 2.labour-saving 3.device 拓展单词 1.entertainment entertaining entertain 2.innovation innovate 3.gift gifted 4.product productive production 核心短语 1.with 2.into 3.to use 4.in 5.in 6.between 7.to 8.outside 要点层层精析 核心词汇 1.①with ②entertainment entertaining enter- tain 2.①an innovation method②adapt and innovate 3.①in②gifted③had a gift for as a gift gifted musicians 4.①productive②produces③production ④形容词，多产的⑤形容词，富有成效的 重点句型 ①What a lovely boy②How lovely the boy ③How lovely a boy he is④How difficult the problem 5fluently he speaks English SECTION II LESSON 1 新知点点突破 重点词汇 基础单词 1.correspond 2.launch 3.satellite 4.orbit 5.premier 6.subsequently 7.relativity 8.finding 9.biologist 10.perceive 11.million 12.humble 13.outcome 14.physicist 15.joint 拓展单词 1.scientific science scientist 2.donate donation donator 3.instant instantly 4.accuracy accurate accurately inaccurate 5.constant constantly 6.efficiently efficient efficiency 7.propose proposal 核心短语 1.from 2.out 3.out 4.to 5.to 课文篇章理解 I.1.scientists and their breakthroughs 2.(1)C(2)D(3)A(4)B Ⅱ.1-5 DCABC 要点层层精析 核心词汇 l.①scientific②scientifically③scientist Da very scientific approach 2.①donations②donated③are donated④to ⑤Donating blood⑥donate a day's pay to 3.①to/with②with③corresponding④to/with ⑤correspondence⑥correspond with/.to Din correspondence with 4.①The instant②the instant/.instantly 3a.instantly b.the instant 5.①动词，发起②名词，（产品的）上市③动词，开 始从事④动词，发行⑤launch into a new busi- ness 6launch the new film 6.①figures②out 7.①as②tobe③perception④to steal ⑤what⑥perceive any difference Dis widely perceived as 8.①be proposed②(should)go③to ④proposals⑤forming⑥proposal ⑦proposed to his girlfriend⑧made a proposal ⑨It was proposed that 重点句型 l.①that②whether,/if③about④Idon't doubt that⑤There is no doubt that⑥I have no doubt that 7I doubt whether/if 2.①Without②but③But for④otherwise 5I couldn't have finished the work so soon if you hadn't helped me. I couldn't have finished the work so soon if it hadn't been for your help. I couldn't have finished the work so soon but for your help. SECTION IⅢGRAMMAR 语法体悟精析 即学活用1 ①as cheap as②much bigger than ③the tallest boy 即学活用2 ①wooden fences②she was foreign③some green eating④a young black German⑤the boy's nice little red 即学活用3 ①four-hour②warm-hearted③ordinary-looking ④bravely-fighting⑤peace-loving⑥second-hand SECTION N LESSON 2 新知点点突破 重点词汇 基础单词 1.insight 2.emerge 3.process 4.coincidence 5.incredible 6.incubation 7.bury 拓展单词 1.achieve achievement 2.clueless clue 3.incident 4.evaluation evaluate 5.occur occurrence 参考答案 核心短语 1.into 2.at 3.to 4.of 5.by 6.about 7.in 8.in9.吸引某人的注意力10.a11.in12.a 要点层层精析 核心词汇 l.①from②emergence③is likely to emerge ④It emerged that 2.①By②a③coincidence④What a coincidence 5It's not a coincidence that 3.①involved②learning studying③involves me (in)travelling Owas/got involved in the quar- rel 5was involved in reading 4.①occurred②to③occurrence DIt didn't occur to me that 5.①be evaluated②evaluate his ability 3evaluate the consequences 重点句型 1.①虽然；尽管②当…时候③只要④while he prefers 5 while (he was)doing ⑥While/, Though/Although running 2.①haven't seen ②turned left ③have been making SECTION V LESSON 3 新知点点突破 重点词汇 基础单词 1.overcome 2.PhD 3.cosmology 4.challenge 5.affect 6.grand 7.bonus 8.decline 9.gravity 拓展单词 1.influence influential 2.brilliant brilliantly brilliance 3.theoretical theory 核心短语 1.of 2.in 3.from 4.from 5.of 6.to 7.than 课文篇章理解 I.the life of Stephen Hawking Ⅱ.1-5 DCCCA 要点层层精析 核心词汇 l.①overcome her fear(②overcame the injury 2.①to decline②to visit③by ④been on the decline 3.①In spite of②the fact that his being angry 4.①grandly②grandly③重要的④重要的 ⑤极好的 5.①rather than②less than③more than ④other than⑤rather than dancing⑥or rather Da.would cycle to b.prefer to cycle to c.would rather cycle to 6.①keep him from going②prevent from hap- pening 3It was too late to prevent