选修模块7 Unit 20 New Frontiers Lesson 3 Scientific Breakthroughs课件(23张)

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名称 选修模块7 Unit 20 New Frontiers Lesson 3 Scientific Breakthroughs课件(23张)
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科目 英语
更新时间 2019-07-12 21:35:17

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课件23张PPT。Welcome to
our classScientific BreakthroughsLesson 3Look at the topic of the unit
FutureLesson oneLesson twoFutureFutureWhy does Lesson 3 talk about the past instead of the future?
We divide the passage into ______ parts.
Part one:
Part two:
Part three:
para.1para.2-8par.95 pioneers of science in the 20th century The conclusion of their contributionsBrief Introduction of
discoveries in the 20th centuryFast-reading3Part one:
1.Why does the author say “If you had to choose the single most important discovery of the 20th century, you would have a real dilemma on your hands.”?
Because uncountable amazing discoveries were made in all sorts of field in the 20th century.
Careful-readingAmazing discoveries were made in______medicinecommunicationstransport Discover the causes of diseases, replace diseased organ with donated one. The way we correspond went from writing letters to emailing We started flying around the world Scientists figured out how to split the atomphysicsWe have a real dilemma on our hands!who?5 scientists of the 20th centuryPart Two:by planby accidentphysicsmedicinetechnologygalaxiesmicrowave
ovenAfter a long, slow process of
exploring our galaxy with
the high-power telescope.He noticed a chocolate melting when
experimenting with radarsthe first
computerAlbert
EinsteinAlexander
Flemingby planby accidentHow did they find the discoveries, by plan or by accident?When he discovered the bacteria
destroyed around the dish left
before his holiday. by accident
Do you think you can discover something important by accident now? why or why not?
No, because we don't have knowlege storage in the fields.
A discovery is said to be an accident
meeting a prepared mind.
Why did the author call them pioneers of science in the 20th century?
What does the author really mean “Without the breakthroughs of these pioneers in science and technology, whether lucky or planned, the world as we know it today wound have been a completely different place.”Part Three:Their discoveries have had a great effect on us.What effect have their discoveries had on us?
Without their discoveries, what would our world be?1. E=mc2 (Albert Einstein)
2. other galaxies (Edewin Hubble)

3. Penicillin (Alexander Fleming)
4. the huge machine(Eckert and Mauchly)

5. Microwave Oven(Percy Spencer) E=mc2 showed how a small piece of mass could
produce an unbelievable amount of energy.Hubble discovered small areas of mist which were in fact galaxies like our own.the basis of nuclear energy.
(Without it, we don't have
enough electricity to help solve
the problem of energy shortage...) created star system, which
enlarge our knowledge on space.A few years later, penicillin was being
mass-produced to save the lives of millions.save the lives of millions.Without it, we may die because of a cold.the basis of nowadays computers and Internet,which makes our life more convenient.The huge machine was the world's first computer.We are all grateful for the handy microwave
oven that allows us to prepare meals in minutes.prepare meals in minutes, saving us a lot of time. Without the breakthroughs of these pioneers, the world
wound have been a completely different place.”
In other words, the pioneers of science made great
contributions to
1. changing our daily life;
2. the development of our society;
3. the progress of human beings.
All of things we're enjoying now is based on
their contributions.pioneers of science 1. Talk about your big dream;
2. One of your favourite scientists, including his discoveries or inventions;
3. Their influences on our dream.Your big DreamAttention! You can present your work in the form of a passage or a dialogue. I'll do it! Examples for you!A: The premier scientists are so great. Do you want to be a scientist like them?
B: In fact, yes. I want to be a scientist on flight.
A: Which is your favourite?
B: Oh, for your question, I have a real dilemma on my hands. But in a way I like….best.
A: What is he famous for?
B: He is famous for ….,
......
I'm dreaming of becoming a scientist on ......like ......,
because I .......
......
So I am trying my best to ......, and I'm on my way to realise my dream! Let’s share your work!Why does lesson 3 talk about the past instead of the future?
Any development of the future
is based on
contributions made in nowadays and the past. Homework 假设你是李华,我校正在开展以“我的科学家梦”为主题的班会,谈论自己的科学梦想,并介绍一位自己崇拜的科学家。
要点:1. 你的科学梦想;
2. 你崇拜的科学家及其主要贡献;
3. 该人物对你的影响。
4. 你对自己未来的规划。
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your attendance