必修5 Unit 1 Great Scientists John Snow defeats King Cholera

(共16张PPT)
Have you watched the film My Old Classmate
同桌的你
This scene is about SARS happening in 2003.
Do you know other infectious and severe diseases
AIDS bird-flu H1N1 /H7N9 cholera
---嘉善高级中学 沈思瑜
Look at the title: do you have any puzzles about it
Who is John Snow and what is “King Cholera”
How does he defeat “King Cholera”
Read the text quickly and complete the main idea of it.
The text is mainly about _____
______ and how he _______________.
John
defeated cholera
Snow
Divide this text into 2 parts.
Part 1(P 1): the introduction of John Snow and “King Cholera”.
Part 2(P2-7): how John Snow defeats “King Cholera”.
1. Who was John Snow
2. What is “King cholera”
a deadly disease
Neither its cause nor its cure was understood.
Many people died every time there was an outbreak.
He was a_______who was inspired to help
ordinary people _____________ cholera.
doctor
exposed to
_____ theories explaining the cause of cholera
two
I
Cholera was spread by______________
_____________in the
air to attack people.
II
Cholera was spread by __________ with which people absorbed this disease into their bodies.
meals
a cloud of
Which is right
dangerous gas
Where did he begin his enquiry (Para. 3)
London
Poor neighborhoods
Two particular streets
16
37
38
40
20
8
9
Mark on a map
Make further investigations
It seemed that the water was to blame.
Look into the source of water
Tell people to remove the handle
Cholera was spread by germs
21
Wastewater treatment system
A magical map
pub
1. Was he able to find any supporting evidence
A woman and her daughter who lived far away but drank the water also died.
“King Cholera” was defeated
1. The source of all water supplies be examined.
2. The water companies were instructed not to expose people to polluted water.
Find some phrases to describe John
Caring for the people.
Being helpful.
Being determined.
Being scientific.
Being careful.
make up a question
think of a method
collect results
analyse the results
find supporting evidence
Draw a map to find that the water was to blame.
Examine the water source and defeat cholera.
Two other deaths serve as supporting evidence.
Polluted water from London spread germs.
Make an enquiry in two particular streets .
Whether cholera is spread by air or by water
Draw a conclusion
Find the cause of cholera to control it.
find a problem
Norovirus(诺如) Hit Jiaxing
Students in some schools became ill. They felt sick, even threw up (呕吐) and had diarrhea [,da 'ri ] (腹泻).
Neither its cause nor its cure was understood.
Find a problem
Analyze the problem
Solve the problem
Scientific
way
HOMEWORK: Write an article of how our school defeated Norovirus.