高中英語北師大版模塊7 教學(xué)課件 Unit 20 Lesson 3

1、Unit 20 NEW FRONTIERSLesson 3 Scientific Breakthroughs北師大出版社 高二|選修7Teaching Objectives 1. To master proper reading strategies for different tasks and expand knowledge of science and technology2. To improve practical reading skills and ability, to talk about the topic of scientific and technology3. T

2、o get familiar with scientific breakthroughs in the last century and to foster interest on area of science and technology北師大出版社 高二|選修7 In the 20th century, the world changed completely. What led to the changes?Discoveries!北師大出版社 高二|選修7Can you tell me what are the scientific discoveries around you?北師

3、大出版社 高二|選修7computerairplane北師大出版社 高二|選修7Air-conditioningHigh-speed railrefrigerator北師大出版社 高二|選修7cameraphone北師大出版社 高二|選修7Lesson 3 Scientific Breakthroughs Introduction BodyConclusionSome great pioneers of science and their inventions or discoveriesA brief introduction of scientific breakthroughs in t

4、he 20th centuryThe significance of these breakthroughsFirst reading北師大出版社 高二|選修7Get the general idea and read the text fast. The purpose of this article is _.the introduction of Albert Einstein the introduction of the process of scientific breakthroughintroduction of the major scientific discoveries

5、 in the 20th century the contributions scientists made to the world First reading北師大出版社 高二|選修7Second Reading1. Read the text and check your guesses .Answers: 1)_ 2)_3)_4)_dbac1) E=mc2 2) penicillin3) the first computer 4) other galaxiesa) scientists worked together as a teamb) there was a lucky acci

6、dentc) a scientist did research for many yearsd) a scientist was inspired北師大出版社 高二|選修7Match the pioneers with the deeds 2. He proved that the universe is actually expanding, and that further away galaxies are, the faster they move.1. He was a son of a Scottish shepherd. Although his discovery is imp

7、ortant, he remained modest and said “Nature made penicillin.A. Elbert EinsteinC. Edwin HubbleB. Alexander FlemingD. Eckert and MauchlyBCA. Elbert EinsteinC. Edwin HubbleB. Alexander FlemingD. Eckert and Mauchly北師大出版社 高二|選修73. He showed in his “theory of relativity that not even time, mass or length

8、are constant.4. During the 2nd world war, the US Navy turned to them to produce a machine. They didnt finish until after the war, in February 1946.A. Elbert EinsteinC. Edwin HubbleB. Alexander FlemingD. Eckert and MauchlyAD北師大出版社 高二|選修71) From the first paragraph, we know that _. there were not many

9、 remarkable discoveries in the 20th centuryB. there are many great discoveries in the 20th centuryC. it is easy to choose the most important discovery in the 20th centuryD. great discoveries are waiting for us to make2. Choose the best answers.Answer: B北師大出版社 高二|選修72) According to the passage, which

10、 of the following about the first computer is NOT true?A. It was huge.B. It was invented by Eckert and Mauchly.C. The machine was finished during the World War II.D. It needed much energy when turned on.Answer: C北師大出版社 高二|選修73) Which of the following was NOT planned?A. The first computer.B. Penicill

11、in. C. Edwin Hubbles exploring the galaxies.D. Theory of relativity.Answer: B北師大出版社 高二|選修74) The article mainly talks about_.A. the introduction of the Wright BrothersB. the introduction of the process of scientific breakthroughC. Introduction of the major scientific discoveries in the 20th centuryD

12、. the contributions scientists made to the worldAnswer: D北師大出版社 高二|選修7Reading strategy : Get specific informationTime Name Discovery How to discover Influence 1905 First World War 1929 1946Not mention-edwith 120 patentsAlbert Einstein Sudden thought Change understanding of universeEdwin Hubble other

13、 galaxies high-powered telescope Alexander Fleming penicillin by accident save millions of livesEckert & Mauchly the first computer hard workmicrowave ovenby chance Prepare meals in minutesPercy Spencer proved the universe larger北師大出版社 高二|選修7Are these statements true (T) of false (F) according to the text or is there no information (NI)? Use the strategies to help you.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. Hubble studied the universe for over twenty years.4. Flem