《Unit1 Great scientists(warming up and reading)》课件

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名称 《Unit1 Great scientists(warming up and reading)》课件
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资源类型 教案
版本资源 人教版(新课程标准)
科目 英语
更新时间 2012-10-17 20:41:20

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(共16张PPT)
Great scientists
warming up and reading
The unmanned module will test space docking(对接) with a spacecraft later this year, paving the way(铺路) for China to operate a permanent space station around 2020.
Tiangong-1
China’s first space lab module Tiangong-1 blasted off (发射)from Jiuquan Satellite Launch Center on Thursday, September 29, 2011.
a news report
great achievement in science
Thanks to those great ___________
scientists
Try this quiz and find out who they are.
_____________ discovered that objects in water are lifted up by a force that helps them float.
_____________ wrote a book explaining how animals and plants developed as the environment changed.
_____________ invented the way of giving electricity to everybody in large cities.
_____________ put forward a theory about black holes.
_____________ invented the earliest instrument to tell people where earthquakes happened.
Archimedes
Charles Darwin
Thomas Edison
Stephen Hawking
Zhang Heng
put forward
提出,建议
put forward a plan/a suggestion
John Snow
John Snow was originally a famous British anaesthetist , which means he put people to sleep during operations. He was also the first epidemiologist or community health doctor, who gathered information scientifically in order to find its cause.
麻醉师
流行病学家
John Snow
At the time he lived in London, cholera was the most frightening disease, but with great effort, he found the cause and finally defeated “King Cholera”.
How did he …
John Snow defeats “King cholera”
Match the main idea of each paragraph
para.1
para.2
para.3
para.4
Deadly disease: cholera outbreak in London
Two possible theories
Look for evidence / gather information
Mark information on a map to find out where people died or did not die
Analyse the water to see if it is the cause
Find other supporting evidences
Finally “King cholera” was defeated
para.5
para.6
para.7
The passage is mainly about _________________ __________________________________________
how John Snow found the cause of the cholera and defeated it.
Many people were exposed to cholera
What is the problem
The cholera was the most deadly disease
of its day. Neither its cause, nor its cure
was understood.
a great challenge
Paragraph 1
adj. 致命的 a deadly weapon
a cure for cancer/poverty
= were not protected from
Which theory to believe in
Paragraph 2 and 3
People absorbed it into their bodies with their meals.
John Snow suspected that the second theory was correct but he needed evidence.
Cholera multiplied in the air and a cloud of dangerous gas would float around until it found its victims.
繁殖,迅速增加 = reproduce
受害者 accident/earthquake victims
吸收
觉得,察觉(属实)
A map of Broad Street
What method did he use
Broad Street
Many deaths happened here.
No death happened here.
It seemed that the water from the pump was to blame.
Public house
Paragraph 4 and 5
the source of the water
polluted dirty water
Paragraph 6
What was another supporting evidence
Two deaths that were linked to the Broad Street outbreak: a woman and her daughter.
She had the water delivered to her house every day
John Snow was able to announce with certainty that polluted water carried the virus.
与…相关联
Paragraph 7
solution
The source of all water supplies should be examined .
“king cholera” was defeated
draw a conclusion
find a problem
make a question
think of a method
collect results
analyse the results
find supporting evidence
How to prove a new idea in scientific
research
scientific spirit
John Snow, a well-known doctor in London, became ________ when he thought about helping ordinary people who were _______ to cholera, a ________ disease of its day. Many thousands of people died every time there was an _________ because no one knew the cause of it. John wanted to help solve the problem.?
He got interested in two theories _________ how cholera killed people. He believed in the second theory that suggested that people _________ the disease with their meals. In 1854,when another outbreak hit London, he was ready to test the two theories. With the help of the ____ he made, he got a valuable clue about the _______ of the disease and was able to announce that the polluted water was to _______. Finally “King Cholera” was ________.
cause
inspired
exposed
deadly
explaining
absorbed
blame
defeated
outbreak
map
Retell the story of John Snow
What should we pay attention to in our daily
life in order not to get infected with cholera
Cook raw food thoroughly
Wash hands often
Keep away from flies
choose fresh sea food
Keep the kitchen clean
Get rid of rubbish properly.
Drink boiled water
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