Unit20Lesson3ScientificBreakthroughs北师大版选修
2020-202英语北师大版选修7课件：Unit20Lesson3 ScientificBreak
20世纪最重要的科学家之一是阿尔伯特·爱因斯坦。1905年的 夏天，这个直率的年轻人正在摇着他一岁大的孩子，突然灵感产 生了。“E＝mc2”诞生了。E＝mc2显示出质量很小的物质怎样能 产生出令人难以置信的巨大能量。之后爱因斯坦又在他的“相对 论”中表明，就连时间、质量和长度也不是持久不变的——它们 随着人们看待它们的角度不同而有所改变。
and weighed over 30 tonnes. With 18,000 tubes, thousands of
circuits and 6,000 switches, it used so much energy that when it was turned on, the lights in the local town went out！
1929年，又一个意义深远的发现诞生了，发现者是一个苏格 兰牧羊人家的孩子。去度假之前，生物学家亚历山大·弗莱明把一 个带有细菌的盘子放在了实验室里。回来后，他注意到不同寻常 的东西。他仔细检查了一下，发现盘子里有青色的霉斑，其周围 的细菌都被消灭了。原来这些青色的霉斑正是青霉素的自然形 态，弗莱明意识到青霉素是杀灭细菌的有效方法。
通讯随着移动电话的引入而改变，我们通信的方式从写信变 成发电子邮件。我们开始在世界各地飞行，同时，科学家们发现 怎样分离原子，而原子以前被认为是宇宙中最小的物质微粒。
Although it is impossible to choose the most important discovery, it is possible to single out a few pioneers of the 20th century. Here are five of them.
Unit 20 New Frontiers
北师大版高中英语选修7Unit 20同步教学课件Lesson 3 Scientific Breakthroughs (共29张PPT)
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 e) There was a mistake
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 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.
Are these statement true or false according to the text or is there no information? 1. Einstein was at work when he thought of the equation F 2 “E=mc ”. 2. Einstein participated in the program that developed the nuclear bomb. NI 3. Einstein observed changes in time, size and mass. T 4. Hubble studied the universe for over twenty years. NI 5. Hubble discovered that our galaxy is bigger than we T thought it was.
北师大版高中英语选修7Unit 20 Lesson 3 Scientific Breakthroughs 课件 课件ppt
Theory of relativity
It showed time, mass and
length 4. change according
to our experience of them.
Reading Task:
Edwin Hubble
It proved that the universe
5.New galaxies like was vastly 6. larger than
4. 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.
Alexander Fleming
Penicillin
It saved
7.
Eckert and Mauchly
The first computer
It was produced to increase the US Navy’s missiles.
8 of the
Percy Spencer
9.
It helps us prepare meals in minutes.
hospital when you die.
Are these statement true or false according to the text or is there no information?
北师大高中英语选修七Unit20Lesson3《ScientificBreakthroughs》课件
Some Discoveries\ Significance pioneers Inventions
Albert Einstein
2. E=mc2 .
It showed how a small piece
of mass could produce an
unbelievable amount of
3. energy .
5. Hubble discovered that our galaxy is bigger than we thought it was. T
6. Fleming had been studying bacteria in his
laboratory when the discovery happened. F
It 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.
Simple outline
introduction
Body
Some great pioneers of science and their inventions or discoveries
Conclusion
A brief introduction of scientific breakthroughs in the 20th century
Some pioneers Discoveries\ Inventions Significance
高中英语Unit20NewFrontiersLesson3ScientificBreakthroughs教案北师大版选修720171027119
Unit 20 New Frontiers Lesson 3 Scientific Breakthroughs精美句子1、善思则能“从无字句处读书”。
读沙漠，读出了它坦荡豪放的胸怀；读太阳，读出了它普照万物的无私；读春雨，读出了它润物无声的柔情。
读大海，读出了它气势磅礴的豪情。
读石灰，读出了它粉身碎骨不变色的清白。
2、幸福幸福是“临行密密缝，意恐迟迟归”的牵挂；幸福是“春种一粒粟，秋收千颗子”的收获. 幸福是“采菊东篱下，悠然见南山”的闲适；幸福是“奇闻共欣赏，疑义相与析”的愉悦。
幸福是“随风潜入夜，润物细无声”的奉献；幸福是“夜来风雨声，花落知多少”的恬淡。
幸福是“零落成泥碾作尘，只有香如故”的圣洁。
幸福是“壮志饥餐胡虏肉，笑谈渴饮匈奴血”的豪壮。
幸福是“先天下之忧而忧，后天下之乐而乐”的胸怀。
幸福是“人生自古谁无死，留取丹心照汗青”的气节。
3、大自然的语言丰富多彩：从秋叶的飘零中，我们读出了季节的变换；从归雁的行列中，我读出了集体的力量；从冰雪的消融中，我们读出了春天的脚步；从穿石的滴水中，我们读出了坚持的可贵；从蜂蜜的浓香中，我们读出了勤劳的甜美。
4、成功与失败种子，如果害怕埋没，那它永远不能发芽。
鲜花，如果害怕凋谢，那它永远不能开放。
矿石，如果害怕焚烧（熔炉），那它永远不能成钢（炼成金子）。
蜡烛，如果害怕熄灭（燃烧），那它永远不能发光。
航船，如果害怕风浪，那它永远不能到达彼岸。
5、墙角的花，当你孤芳自赏时，天地便小了。
井底的蛙，当你自我欢唱时，视野便窄了。
笼中的鸟，当你安于供养时，自由便没了。
山中的石！当你背靠群峰时，意志就坚了。
水中的萍！当你随波逐流后，根基就没了。
空中的鸟！当你展翅蓝天中，宇宙就大了。
空中的雁！当你离开队伍时，危险就大了。
地下的煤！你燃烧自己后，贡献就大了6、朋友是什么？朋友是快乐日子里的一把吉它，尽情地为你弹奏生活的愉悦；朋友是忧伤日子里的一股春风，轻轻地为你拂去心中的愁云。
北师版选修7Unit 20 Period 3 Lesson 3 Scientific Breakthroughs
Period Three Lesson 3 Scientific BreakthroughsⅠ.单词自测1．procedure n．步骤；程序2．donate vt.捐赠；赠送3．correspond vi.通信；符合4．meanwhile adv.同时5．split vi.分离，分开6．premier adj.最重要的；n.总理7．outspoken adj.直言的，坦率的8．outcome n．后果，结果9．cure vt.治愈10．wrestle vi.努力解决；摔跤；搏斗11．patent n．专利Ⅱ.短语自测1．range_from...to...在某范围内变化2．replace...with...用……代替……3．figure_out计算出4．be_thought_to_be被认为是……5．turn_to_sb.向某人求助6．wrestle_with_sth.努力解决难以处理的事物7．be_dedicated_to献身于；专注于8．by_mistake错误地；由于差错9．be_grateful_for感谢……，对……心存感谢10．experiment_with试验……，试用……1．In the summer of 1905，this outspoken young man was_rocking his one－year－old baby when he was suddenly inspired.1905年的夏天，这位直率的年轻人正摇着他一岁大的孩子，这时他突然产生了灵感。
2．Einstein had already become world－famous when a young ex－lawyer，returning_from_the_First_World_War，started work in California.从一战中转战回来，曾经担任过律师的年轻人在加利福尼亚开始工作时，爱因斯坦已经举世闻名了。
Unit 20 Lesson 3 Scientific Breakthroughs 课件1-优质公开课-北师大版高中选修7精品
10.被认为是……
Ⅲ.句型搜索 1．In the summer of 1905，this outspoken young man was rocking his oneyearold baby when he was suddenly
inspired.
[信息提取] 然……。 be doing sth when...正在做……这时突
10．________n．the result 11．________vt.to get rid of an illness etc.
12．________vi.to struggle physically with sb
答案 1.dilemma 2.procedure 6.meanwhile 10.outcome an 4.donate 5．correspond 9.outspoken 7.split 8.premier 12.wrestle
[例句仿写]
答案
我正在做作业，这时电话铃响了。
I ________________________________the telephone rang. was doing my homework when
2． Using the most highpowered telescope of the time，he
Unit 20 New Frontiers Period Four Lesson 3 Scientific Breakthroughs 课件(北师大
版选修7，课标通用)
Ⅰ.单词识记 1．________n．a position or situation giving two
choices；neither pleasants
2．________n．the order or method of doing something 3．________n．a part of the body or of a plant which has a special purpose 4．________vt.to give to a fund etc. 5．________vi.to communicate by letter；to match
Unit20Lesson3ScientificBreakthroughs北师大版选修
television system
2. _____ is called “Father of Car”. A. Rudolf Diesel B. Karl Benz C. Thomas Edison
3. ______ is called “Father of Dynamite (炸药)”. A. Alfred Nobel B. Albert Einstein C. Alexander Bell
1. ____ isn’t Thomas Edison’s invention.
A. The long-
lasting,
B. The C. The practical,
practical electric
phonograph (留声机)
publicly demonstrated
light bulb
Lesson3
Scientific Breakthroughs
Do you know him and his discoveries?
Newton's Law of Universal Gravitation
万有引力定律
Some discoveries or inventions in the 20th century:
4.Other galaxies
d)A scientist was inspired
5. Microwave
e) There was a mistake
1. The passage is mainly about ____.
A. Scientific discoveries
B. Pioneers of Science
4. Marconi (马可尼) invented the _____ in the world. A. TV B. long distance radio transmission C. typewriter