1、北师大 高二 Unit 20,Unit 20 New Frontiers,Lesson 3 Scientific Breakthroughs,Warm up,A quiz: guess who he is?,Isaac Newton, 1642-1727, British physical scientist, astronomer and mathematician, born in Lincolnshire.,He proved the Theory of Gravity to be true.,He invented an advanced steam engine which was
2、the last straw of the First Industry Revolution in western countries.,He was the inventor of telephone.,Bell, Alexander Graham,Among the several important discoveries made in his life, the greatest is the creation of his famous Theory of Relativity. He also discovered famous mathematical statement e
3、=mc (energy equals mass times the speed of light squared).,Albert Einstein,On December 17th, 1903, they made the worlds first flight in a machine that was heavier than air and powered by an engine.,Wright Brothers,One of the first aircraft,Do you know the major discoveries of the scientists in the p
4、ictures?,Before you start,The designer of ENIAC, the first commercial computer made in the United States,American physicist John William Mauchly and J. Presper Eckert,Scottish biochemist February 14, 1929 - Fleming Discovers Penicillin. Sir Alexander Fleming was a young bacteriologist when an accide
5、ntal discovery led to one of the great developments of modern medicine.,Alexander Fleming (1881-1955),American astronomer. He changed our ideas about the universe and how it developed. In the late Nineteen-Twenties, his study led to the most important astronomical discovery of the Twentieth century
6、- the expanding universe. And he proved that nebulae were galaxies themselves. Astronomers now agree that far distant galaxies do exist.,Edwin Hubble,Try to match the discoveries or inventions with how they came about.,1. E = mc2 2. penicillin 3. the first computer 4. other galaxies,a. scientists wo
7、rked together as a team b. there was a lucky accident c. a scientist did research for many years d. a scientist was inspired,Read the text, check your guesses about exercises above and choose then the best answer for the following questions.,Read to learn,The purpose of this article is _.,the introd
8、uction of the Wright Brothers the introduction of the process of scientific breakthrough introduction of the major scientific discoveries in the 20th century the contributions scientists made to the world,1. Einstein was at work when he thought of the equation “E=mc2 ”. This outspoken young man was
9、rocking his one-year-old baby when he was suddenly inspired. “E=mc2”was born.,Careful-reading,F,Are these statements true or false according to the text or is there no information?,2. Einstein participated in the program that developed the nuclear bomb. 3. Einstein observed changes in time, size and
10、 mass.,NI,T,4. Hubble studied the universe for over twenty years.He began the long, slow process of exploring our galaxy. 5. Hubble discovered that our galaxy is bigger than we thought it was.,NI,F,6. Fleming had been studying bacteria in his laboratory when the discovery happened. He left for holid
11、ay. When he returned, he found it.,F,7. There was a blue mould around the bacteria in the dish.He double-checked and saw a blue mould in the dish around which the bacteria had been destroyed. 8. Fleming developed the process for making penicillin.,F,NI,9. The first computer project failed to meet it
12、s original goal. 10. The first computer was extremely difficult to program.,NI,T,11. The scientists who discovered microwaves invented microwave ovens. 12. Today it is possible to donate your heart to hospital when you die.,NI,T,1. Communications changed with the introduction of mobile phones and th
13、e way we correspond went from writing letters to emailing.,Language points,阅读下列各句，注意correspond的意思 和用法。 1. Weve corresponded with each other for years but Ive never actually met him. 2. His actions do not correspond with / to his words. 3. The American FBI corresponds to the British M15.,自我归纳correspo
14、nd作动词，意为 “_”，常用于结构correspond with sb.中，如句1；意为“相一致，符合”， 常用于结构correspond to / with sth.中， 如句2；意为“相当于，类似于”，常和 介词to搭配，如句3。,通信,拓展 correspondence n. 相符，一致；通信，信 件 in correspondence with 和一致；和有通信联系 correspondent n. 通讯员，记者 corresponding adj. 相符的；相应的,即学即练 根据中英文提示完成下列句 子，每空一词。 1. 这些货和你送到这里的样品不一样。 The goods do
15、not _ _ the samples you sent here. 2. 鸟的翅膀相当于人的手臂。 The wings of a bird _ _ the arms of a man.,correspond to / with,correspond to,2. During the Second World War, when Flemings discovery was first helping to cure people, ,阅读下列句子，注意cure的词性、意思及用 法。 1. The doctors job is to cure people who are ill. 2. Th
16、e medicine will cure you of your cough. 3. Parents should try to cure their children of bad habits. 4. Doctors say there are several possible cures for that disease. 5. At present there seems to be no cure for rising prices and falling living standards.,自我归纳 cure v. 意为“_”， 可直接接宾语或用于cure sb. _ sth. 结
17、构，如句1和句2；意为“消除，改正 （某人不良的习惯，情感或态度）”， 如句3。 n. 意为“治疗（办法）”，如句4；“解 决办法，措施，对策”，如句5。常与 _引起的短语连用。,治愈，治好,of,for,辨析 cure & treat cure指 “治愈”； treat指“治疗”，不 一定治好。treat sb. for a disease治疗 某人的疾病。,即学即练 根据中英文提示完成下列句 子，每空一词。 1. 医生们现在认为他们已治好了他的病。Now doctors believe they have _ _ _ _ _.,cured him of the disease,2. 更好的
18、质量管理可能会解决我们的生产问题。Better quality control might _ _ _ _. 3. 好像什么都没法消除他的紧张。Nothing seemed to _ _ _ _ _.,cure our production problems,cure him of his nervousness,Vocabulary: Compound WordsMatch the categories (a-e) with the examples from the text (1-5). Then add examples of your own.,1. breakthrough; ou
19、tcome 2. CD player; jet engine,a) compound noun (noun + noun) b) compound noun(verb + preposition),c) compound noun (adjective + noun) d) compound verb e) compound adjective,3. mass-produce; double-check 4. one-year-old; world-famous; far-reaching 5. flying machine; nuclear bomb,1. Which of the disc
20、overies or inventions mentioned in the text has been the most important so far? Why? 2. In your opinion which discovery orinvention will have the most importantconsequences in the future? Why?,Work in pairs. Discuss these questions with your partner.,3. Which of the scientists in the text do you adm
21、ire the most? Why? 4. Which of the discoveries is the most difficult to understand?,It is predicted（预言）that there will be 5 scientific breakthroughs in the 21st century. What do you think will be the 5 scientific breakthroughs and how will they influence our life? Have a discussion and voice your opinion according to the text of lesson 1.,Discussion,
