课件24张PPT。Unit 1 Great Scientists Name some famous scientists you know at home and abroad according to the following information .WARMING UP1. Which scientists discovered that objects in water are lifted up by a force that helps them float?Archimedes
阿基米德2. Who wrote a book explaining how animals and plants developed as the environment changed?Charles Darwin
达尔文3. Who invented the first advanced steam engine?Thomas Newcomen 纽可门British (1663--1729) He
improved the first steam
pump and turned it into
a steam engine in 1712. 4. Who used peas to show how physical characteristics are passed from parents to their children?Gregor Mendel 门德尔Gregor Mendel is a Czech
(1822- 1884) He grew
pea plants and developed
ideas on heredity(遗传学)
and inherited (继承,承传) characteristics.5. Who discovered radium?Marie Curie 居里夫人6. Who invented the way of giving electricity to everybody in large cities?Thomas Edison 爱迪生7. Who was the painter that studied dead bodies to improve his painting of people?Leonardo da Vinci 达芬奇Last Supper Mona Lisa?????? ?? 8. Who invented a lamp to keep miners safe underground?Humphry Davy 汉弗莱 戴维Miner's Safety Lamp 9. Who invented the earliest instrument to tell people where earthquakes happened?张衡seismograph10. Who put forward a theory about black holes?Stephen Hawking 斯帝芬 霍金In your opinion, what qualities/ characteristics should a scientist have ? common characteristicscautiouspersuasivestrict(be strict with
sb)positivePerseverancecreativebright(brightness)enthusiasticDo you know what is the center of the solar system?
Who put forward this theory?Reading
Copernicus’ Revolutionary TheoryCan you name the nine planets in the solar system? .Mercury 水星
Venus 金星
Earth 地球
Mars 火星
Jupiter 木星
Saturn 土星
Uranus 天王星
Neptune 海王星
Pluto 冥王星Nine Planets In the Solar System:What conclusion did Copernicus’ mathematical calculations lead to?
2.When did Copernicus publish his theory?Fast readingThat the earth was not the center of the solar system. 1543Further reading
Why didn’t Copernicus publish his theory before he died?
How did the Christian Church react to his theory?Because he didn’t want to be attacked by the
Christian Church.The Christian Church rejected his theory ,saying it was against god’s idea and people who supported it would be attacked .Discussion (group work)
If you were Nicolaus Copernicus, would you have hidden your theory for so many years? Give reasons.Only if you put the sun there did the movements of the other planets in the sky make sense. can you learn English well.1.You can learn English well only in this way.
Only in this way __________________________.2. I was a student only then.
Only then _____________ was I a student.Only when one is away from home does one realize how nice home is.
But only his new theory could do that.1.Ex1~3 on P4~5.(课本)
2.Ex1~3 on P9~12.(学习辅导)
3.Get prepared for the
dictation.