选修模块7 Unit 20 New Frontiers Lesson 3 Scientific Breakthroughs 课件(26张)

文档属性

名称 选修模块7 Unit 20 New Frontiers Lesson 3 Scientific Breakthroughs 课件(26张)
格式 zip
文件大小 514.1KB
资源类型 教案
版本资源 北师大版
科目 英语
更新时间 2019-07-12 21:34:13

图片预览

文档简介

课件26张PPT。 Lesson 3 Scientific Breakthroughs warm up :
A little quiz Isaac Newton, 1642-1727,British physical scientist、astronomer and mathematician,born in Lincolnshire.He proved the Theory of Gravity to be true.He was British who was living in 18th century. He invented an advanced steam engine which was the last straw of the First Industry Revolution in western countries.He was born in Scotland in 1847 . He immigrated into the USA at the age of 24 and later became a America citizen.He was the inventor of telephone.
贝尔(Bell,
Alexander?Graham)(1847~1922) 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=mc2(energy equals mass times the speed of light squared).This statement or formula explained that a great amount of energy could come from a small piece of matter. Albert EinsteinOn December 17th, 1903, they made the world's
first flight in a machine that was heavier
than air and powered by an engine.Wright Brothers
The designer of ENIAC, the first commercial computer made in the United States
American physicist John William Mauchly and J. Presper Eckert
这是美国军方(navy)要求宾州大学莫奇来(Mauchly)博士和他的学生爱克特(Eckert)设计的,准备用来计算炮弹及火箭、导弹(missiles) 的弹道,它最终在原子弹的研制中发挥了极大的作用。
Alexander
Fleming
(1881-1955)Scottish biochemist
February 14, 1929 --- He discovers Penicillin. He was a young bacteriologist when an accidental discovery led to one of the great developments of modern medicine.
Edwin HubbleAmerican astronomer. He changed our ideas about the universe and how it developed. In the late Nineteen-Twenties, his study lead to the most important astronomical discovery of the Twentieth century -- the expanding universe. And he proved that mist were galaxies themselves. Astronomers now agree that far distant galaxies do exist.Reading practice for general ideaReading Strategy (1):
First read the text to get the general idea. Go through the whole text, don’t worry about some new word , you don’t need to understand every word exactly. Just work out the subject and the main idea.
1.The equation e=mc2
2.Penicillin
3.The first computer
4.Other galaxiesEx2.Try to match the discoveries
with how they were discovered?a)Scientists worked
together as a team
b)There was a lucky accident
c)A scientist did research for many years
d)A scientist was inspired The purpose of this article is ____. the introduction 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
Match the pioneers with the deedsThey were specialist in the area of bicycle-repair, but they were interested in aircraft. They made great contributions to the development of aircraft.
He is aware of recent developments, but he has been working on his own. He showed in his “theory of relativity” that not even time, mass or length is constant.The Wright brothersElbert EinsteinHe proved that the universe is actually expanding, and that further away galaxies are, the faster they move.
He was a son of a Scottish shepherd . He discovered penicillin. Although his discovery is important, he remained modest.
During the 2nd World War, the US Navy turned to them to produce a machine. They didn’t finish until after the war, in February 1946.
Edwin HubbleAlexander FlemingEckert and Mauchly
Together with their team
Reading for specific informationReading Strategy (2)
Read the questions /statements and identify important words.
Find the relevant part of the text and identify the important words
Decide if the important words in the question/statement express the same meaning
Base your decision only on the information in the text.
Use the strategies to help youExs 4: Are these statements true or false according to the text or is there no information?
Work in groups to use the strategies to work out the problems.1. Einstein was at work when he thought of the equation “e=mc ”.
2. Einstein participated in the programme that developed the nuclear bomb.
3.Einstein observed changes in time, size and mass.
While rocking his one-year-old baby, he thought sth
Over. Suddenly, the equation came to him.Einstein then showed in his “theory or relativity” that not even time, mass or length are constant.
FNIT4. Hubble studied the universe for over twenty years.
5. Hubble discovered that our galaxy is bigger than we thought it was.
6. 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 for making penicillin.
NITThe universe was vastly larger than had previously been thought.FFNI9. The first computer project failed to meet its original goal.
10. The first computer was extremely difficult to program.
TAlthough they only finish it after the war in 1946.NI11. The scientist who discovered microwaves invented microwave ovens. 12. Today it is possible to donate your heart to hospital when you die. INITWhile Albert Einstein was rocking his one-year-old baby, he _______.
was aware of recent scientific developments.
thought over Marie Curie’s research.
he showed that not even time, mass or length are constant.
came up with the famous “ theory of relativity”
Vocabulary:
Compound Words
Exs 5. Match the categories (a-e) with the examples from the text (1-5) . Then add examples of your own.
compound n. 1. one-year-old; world-famous;
(n.+n.) far-reaching
b) compound v. 2. breakthrough; outcome
c) Compound adj. 3. mass-produce;double-check
d) compound n. 4. flying machine;
(adj.+n.) nuclear bomb
e) compound n. 5. CD player; jet engine
(v.+prep.)Useful expressions仔细考虑,慎重思考
被想出
意识到
越。。。越。。。
向—求助
think over
Sth comes to sb 〖no passive〗
be aware of
the more, the more
turn to sb / sth
Retell the text about some pioneers and their discoveries. Homework :