1、,Unit 20 Lesson 3Scientific Breakthroughs,Some discoveries or inventions in the 20th century:,Means of transport:,Wright Brothers,The 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 fi
2、rst artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957.,Reading,Pioneers of Science,His greatest discovery is the creation of his famous Theory of Relativity.,Albert Einstein,Albert Einstein was considered the greatest scientist of the 20th century.,Edwin Hubble was an America
3、n astronomer. His most important discovery was the expanding universe.,Edwin Hubble,Hubble space telescope,Alexander Fleming, a Scottish biochemist, discovered Penicillin.,Alexander Fleming,The designer of ENIAC, the first commercial computer made in the United States.,John William Mauchly and J. Pr
4、esper Eckert,The World First Computer,Percy Spencer, an American engineer and inventor, discovered microwaves.,Percy Spencer,1.The equation E=mc22.Penicillin3.The first computer4.Other galaxies 5. Microwave,Try to match the discoveries with how they were discovered?,a)Scientists worked together as a
5、 team b)There was a lucky accident c)A scientist did research for many years d)A scientist was inspired e) There was a mistake,Einstein 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 a
6、nd mass. Hubble studied the universe for over twenty years. 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.
7、There was a blue mould around the bacteria in the dish. 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 ove
8、ns. 12. Today it is possible to donate your heart to hospital when you die.,Einstein 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 twent
9、y years. Hubble discovered that our galaxy is bigger than we thought it was.,F,T,T,Are these statement true or false according to the text or is there no information?,NI,NI,6. Fleming had been studying bacteria in his laboratory when the discovery happened. 7. There was a blue mould around the bacte
10、ria in the dish. 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
11、your heart to hospital when you die.,NI,T,NI,T,NI,F,F,Reading Task:,Reading Task:,the world and space,E=mc2,energy,change,Reading Task:,New galaxies,larger,millions of lives,accuracy,Microwaves,breakthroughs,introductionBodyConclusion,Simple outline,A brief introduction of scientific breakthroughs i
12、n the 20th century,Some great pioneers of science and their inventions or discoveries,The significance of these breakthroughs,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 i
13、nfluence our 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. W
14、ell gradually 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.,Homework,
