Unit 1 Great Scientists warming up and reading(浙江省宁波市)

课件20张PPT。Unit 1 Great ScientistsArchimedesHe lived in Ancient GreeceHe discovered that objects in water are lifted up by a force.This theory helped him solve the problem raised by the king.He once said, “give me a place to stand on, and I can move the earth.”Warming uplight bulbCharles DarwinHe was born in 1808, in Britain.He wrote a famous book which changed the way we think about our lives.At that time people thought all living things were perfect, so would never need to change.He put forward his theory that animals and plants developed as the environment changed.4. Who invented the first steam engine?
Thomas Newcomen
(1663-1729) British5. Who discovered radium?
Marie Curie (1867-1934)
Polish and French, won two Nobel Prizes
Leonardo da Vinci
(1452-1519) Italian artistZhang Heng (78-139) Chinese, invented seismographStephen Hawking (1942--) British, a physicistWhat do you think when you see these words?How about Cholera? AIDSTB(肺结核)bird-fluSARSSpread from one person to another. So it is an infectious Disease.infect/affect peoplebacteria of cholera It infects people’s intestines(肠道), causing
diarrhoea(腹泻), vomiting(呕吐) and
dehydration(脱水)
Many deaths in African countries in 2005
and even now
Who can help us out of the trouble?
Who can ease the pain?Scientists & doctorsJohn Snow
( 1813~ 1858)
Englishman Cholera
defeatReadingJohn Snow defeats “King cholera”What’s the main idea of the passage?A John Snow was a well-known doctor in London.
B The cause of Cholera was polluted water.
C The source of all drinking water should be examined.
D How did John Snow collect, analyze data and find the cause of the disease and solved it .
The first … ; the second…Another outbreak hit London.More than 500people had died in 10 days.These numbers in Broad Street near the water pump had many of the deaths.20 and 21 Broad Street and 8 and 9 Cambridge Street had no deaths….They didn’t drink the water from the Broad Street pump.These families worked in the pub at 7 Cambridge Street.Part 1
Part 2
Part 3
part4(7)(2)(3-6)(1)Draw a conclusionThink of a method Collect results Make up a questionFind a problemAnalyse the resultsFind supporting evidenceScientific Report by John SnowNobody knew the cause of the serious disease of cholera.Idea 1,… Idea 2, …Collect information from the cholera outbreak to prove which theory was correct.He found the cause of cholera was the polluted water.2. Because there was a connection between the drinking water and the deaths. John Snow was able to show tat cholera could be defeated now that its cause was known .The
problemThe causeThe methodThe resultsIdea 1 or
2? Why ?
The
conclusion
John Snow was a __________ doctor in London in
the ___ century. He wanted to find the ______ of
cholera in order to ______ it. In 1854 when a cholera ______ out, he began to gather information. He ______on a map where all the dead people had lived and he found that many people who had drunk the
dirty water from the ______ died. So he decided that
the polluted water carried cholera. He suggested that
the ______ of all water supply ___________ and
new methods of ________ with polluted water be
found. Finally, “King Cholera” was _______.well-known19thcausedefeatbrokemarkedpumpsourcebe examineddealingdefeatedPost reading