高中英语 Unit 20 Lesson 3 Scientific Breakthroughs 课件 北师大选修7

1、2021/8/11 星期三1Unit 20 Lesson 3Scientific Breakthroughs2021/8/11 星期三2Some discoveries or inventions in the 20th century:2021/8/11 星期三3Means of transport:2021/8/11 星期三4Wright Brothers2021/8/11 星期三5The change in communication:2021/8/11 星期三62021/8/11 星期三7Neil Alden Armstrong was the first person to set

2、foot on the Moon.This is my personal one small step, it was a great step of mankind.2021/8/11 星期三8The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957.2021/8/11 星期三9ReadingPioneers of Science2021/8/11 星期三10His greatest discovery is the creation of his famous Theory of

3、Relativity. Albert EinsteinAlbert Einstein was considered the greatest scientist of the 20th century. 2021/8/11 星期三11Edwin Hubble was an American astronomer. His most important discovery was the expanding universe. Edwin Hubble2021/8/11 星期三12Hubble space telescope2021/8/11 星期三13Alexander Fleming, a

4、Scottish biochemist,discovered Penicillin.Alexander Fleming2021/8/11 星期三14The designer of ENIAC, the first commercial computer made in the United States.John William Mauchly and J. Presper Eckert2021/8/11 星期三15The World First Computer2021/8/11 星期三16Percy Spencer, an American engineer and inventor, d

5、iscovered microwaves.Percy Spencer2021/8/11 星期三171.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 research for many yearsd)A s

6、cientist was inspirede) There was a mistake2021/8/11 星期三18Einstein was at work when he thought of the equation “E=mc2”.Einstein participated in the program that developed the nuclear bomb.Einstein observed changes in time, size and mass.Hubble studied the universe for over twenty years.Hubble discov

7、ered 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?2021/8/11 星期三196. 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. Fle

8、ming 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 hospital

9、when you die.2021/8/11 星期三20Einstein was at work when he thought of the equation “E=mc2”.Einstein participated in the program that developed the nuclear bomb.Einstein observed changes in time, size and mass.Hubble studied the universe for over twenty years.Hubble discovered that our galaxy is bigger

10、 than we thought it was.FTTAre these statement true or false according to the text or is there no information?NINI2021/8/11 星期三216. 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 proc

11、ess 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 hospital when you die.NITNITNIFF

12、2021/8/11 星期三22Reading Task: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

13、3 .Theory of relativityIt showed 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 produc

14、ed to increase the 8 of the 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.2021/8/11 星期三23Reading Task:In the 20th century, many amazing discoveries were made in medicine, communicatio

15、ns and transport, let alone our knowledge 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 a

16、nd spaceE=mc2energychange2021/8/11 星期三24Reading Task:Edwin 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 missil

17、es.Percy Spencer9. .It helps us prepare meals in minutes.Without these 10. in science and technology, we would have had a completely different world.New galaxieslargermillions of livesaccuracyMicrowavesbreakthroughs 2021/8/11 星期三25 introduction Body ConclusionSimple outline A brief introduction of s

18、cientific breakthroughs in the 20th centuryPara.9Some great pioneers of science and their inventions or discoveriesThe significance of these breakthroughs2021/8/11 星期三26 Discussion: 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.2021/8/11 星期三271. Well know where we came from. Why does the universe exist? 2. Well crac