《高中英语 Unit 20 Lesson 3 《Scientific Breakthroughs》 课件 北师大版选修7》由会员分享，可在线阅读，更多相关《高中英语 Unit 20 Lesson 3 《Scientific Breakthroughs》 课件 北师大版选修7（30页珍藏版）》请在金锄头文库上搜索。
1、Unit 20 Lesson 3Scientific BreakthroughsSome discoveries or inventions in the 20th century:Means of transport:Wright BrothersThe change in communication:Neil Alden Armstrong was the first person to set foot on the Moon.This is my personal one small step, it was a great step of mankind.The first arti
2、ficial satellite, Sputnik 1, was launched by the Soviet Union in 1957.His greatest discovery is the creation of his famous Theory of Relativity. Albert EinsteinAlbert Einstein was considered the greatest scientist of the 20th century. Edwin Hubble was an American astronomer. His most important disco
3、very was the expanding universe. Edwin HubbleHubble space telescopeAlexander Fleming, a Scottish biochemist,discovered Penicillin.Alexander FlemingThe designer of ENIAC, the first commercial computer made in the United States.John William Mauchly and J. Presper EckertThe World First ComputerPercy Sp
4、encer, an American engineer and inventor, discovered microwaves.Percy Spencer1.The equation E=mc22.Penicillin3.The first computer4.Other galaxies5. MicrowaveTry to match the discoveries with how they were discovered?a)Scientists worked together as a teamb)There was a lucky accidentc)A scientist did
5、research for many yearsd)A scientist was inspirede) There was a mistake1.Einstein was at work when he thought of the equation “E=mc2”.2.Einstein participated in the program that developed the nuclear bomb.3.Einstein observed changes in time, size and mass.4.Hubble studied the universe for over twent
6、y years.5.Hubble discovered that our galaxy is bigger than we thought it was.Are these statement true or false according to the text or is there no information?6. Fleming had been studying bacteria in his laboratory when the discovery happened.7. There was a blue mould around the bacteria in the dis
7、h.8. Fleming developed the process of making penicillin. 9. The first computer project failed to meet its original goal. 10. The first computer was extremely difficult to program. 11. The scientist who discovered microwaves invented microwave ovens. 12. Today it is possible to donate your heart to h
8、ospital when you die.1.Einstein was at work when he thought of the equation “E=mc2”.2.Einstein participated in the program that developed the nuclear bomb.3.Einstein observed changes in time, size and mass.4.Hubble studied the universe for over twenty years.5.Hubble discovered that our galaxy is big
9、ger than we thought it was.FTTAre these statement true or false according to the text or is there no information?NINI6. Fleming had been studying bacteria in his laboratory when the discovery happened.7. There was a blue mould around the bacteria in the dish.8. Fleming developed the process of makin
10、g penicillin. 9. The first computer project failed to meet its original goal. 10. The first computer was extremely difficult to program. 11. The scientist who discovered microwaves invented microwave ovens. 12. Today it is possible to donate your heart to hospital when you die.NITNITNIFFReading Task
11、:In the 20th century, many amazing discoveries were made in medicine, communications and transport, let alone our knowledge of 1 .Some pioneersDiscoveries Inventions SignificanceAlbert Einstein 2 .It showed how a small piece of mass could produce an unbelievable amount of 3 .Theory of relativityIt s
12、howed time, mass and length 4 . according to our experience of them. Edwin Hubble 5 like the one we live in It proved that the universe was vastly 6 . than had previously been thought. Alexander FlemingPenicillinIt saved 7 .Eckert and MauchlyThe first computerIt was produced to increase the 8 of the
13、 US Navys missiles.Percy Spencer 9 .It helps us prepare meals in minutes.Without these 10 in science and technology, we would have had a completely different world.Reading Task:In the 20th century, many amazing discoveries were made in medicine, communications and transport, let alone our knowledge
14、of 1. . Some pioneersDiscoveries Inventions SignificanceAlbert Einstein2. .It showed how a small piece of mass could produce an unbelievable amount of 3. .Theory of relativityIt showed time, mass and length 4. according to our experience of them. the world and spaceE=mc2energychangeReading Task:Edwi
15、n Hubble5. like the one we live in It proved that the universe was vastly 6. than had previously been thought.Alexander FlemingPenicillinIt saved 7. .Eckert and MauchlyThe first computerIt was produced to increase the 8. of the US Navys missiles.Percy Spencer9. .It helps us prepare meals in minutes.
16、Without these 10. in science and technology, we would have had a completely different world.New galaxieslargermillions of livesaccuracyMicrowavesbreakthroughs introductionintroduction Body Body ConclusionConclusionSimple outline A brief introduction of scientific breakthroughs in the 20th centuryPar
17、a.9Some great pioneers of science and their inventions or discoveriesThe significance of these breakthroughs Discussion: It is predicted（预言）（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
18、life? Have a discussion and voice your opinion.1. Well know where we came from. Why does the universe exist? 2. Well crack the genetic code and conquer cancer. 3. Well live longer (120 years?). 4. Well “manage”Earth. Well stop talking about the weather but will do something about it. Well gradually
19、learn how to predict the effects of human activity on the Earth, its climate and its ecosystems. 5. Well have a brain“road map”. Well be able to say with certainty which ones are working when you read a word, when you say a word, why you think about a word, and so on. 1. Do exercise 5 on page 25.2. Preview Communication Workshop.同学们来学校和回家的路上要注意安全同学们来学校和回家的路上要注意安全
