人教新课标 必修五 Unit 1 Great scientists Reading 课件-(30张ppt)

(共30张PPT)
Unit 1
Great scientists
Who is he or she
★ He is a Chinese.
★ He is a very famous scientist.
★ He likes swimming and playing mah-jong.
★ He considers himself as farmer.
★ He grows what is called super hybrid rice
★ He devotes his life to finding ways to grow more and more rice.
Yuan Longping
Warming up
play an important role
Who invented it
Thomas Edision
Gregor Mendel(1822-1884)
It shows the characteristics from parents to their children.
Leonardo da Vinci
The Last Supper
He studied dead bodies to improve his painting of people.
Archimedes
He discovered that objects in water are lifted up by a force.
The force helps them float.
He once said, “give me a place to stand on, and I can move the earth.”
Charles Darwin
He put forward his theory that animals and plants developed as the environment changed.
He was born and worked as a doctor in Great Britain. He was so famous that he attended Queen Victoria at the births of her many children.
He located the source of cholera outbreaks.
How to prove a new idea Put them in order
Draw a conclusion
Think of a method
Collect results
Make a question
Find a problem
Analyze the results
Find supporting evidence
Repeat if necessary
Doing research is not an easy task.
Why did author use the present tense- “DEFEATS” in the title
deadly, sever
hard to cure
1)Cholera was the most deadly disease of its day.
2)Neither its cause, nor its cure was understood.
How to defeat cholera , in John Snow’s opinion
He knew it would never be controlled until its cause was found.
Read for the structure
Find a problem
Make a question
Think of a method
Collect results
Analyse the results
Find supporting evidence
Draw a conclusion
Read the beginning of each paragraph.
But he became inspired when…
He became interested in …
John Snow suspected that…
First he marked on a map…
Next John Snow looked into…
He found supporting evidence from…
John Snow suggested that…
Finally “King Cholera” was defeated.
We can conclude the tone of the author is _________
objective
Develop the paragraph by cause and effect
BUT…
inspired
cause
effect
cause
A famous & expert doctor
Helping ordinary people
The deadly disease of its day
Neither its cause nor its cure was understand.
Many terrified people died every time…
face the challenge and solve the problem
He knew that cholera would never be controlled until its cause was found
John Snow wanted to find the cause of cholera.
Why he’s
suggested
John Snow thought people became ill after eating infected food.
John Snow made up his mind to find out the cause because of the deadly attack.
But So As So severe that
Needed evidence
Hit London
Spread
quickly through poor neighborhood
500 people died in 2 particular street
It seems that the water was to blame.
notice:
discover:
Soon afterwards the disease __________
Cholera was spread by __
He ______ the source of the water.
He found that _________
He told people to ______
slow down
germs
looked into
the polluted
water
to see
to find out
remove from
John Snow found that the cause came from the polluted water.
_______________________________________
_______
________________________
_______
The extra two deaths proved John Snow’s conclusion.
Cholera was defeated at last.
John Snow wanted to find the cause of
cholera.
John Snow thought people became ill
after eating infected food.
John Snow made up his mind to find out
the cause because of the deadly attack
John Snow found that the cause came
from the polluted water.
The extra two deaths proved John
Snow’s conclusion.
Cholera was defeated at last.
He
Then he made use of the deadly attack to ________ his idea.
He
Besides/ in addition,
So the cause was known,
What do you think of John Snow
The greatness of scientists lies not only in their lasting efforts but also their selfless contribution to a better satisfied world.