资源简介

(共20张PPT)
Unit 1
人教版2019选择性必修第二册
Science and Scientists
Reading and Thinking
John Snow Defeats “King Cholera”
Lead in
According to these pictures, What kind of disease do you think it is
Do research
COVID-19
Lead in
④
Besides coronavirus, what other kinds of epidemics （流行病）have you heard of
bird-flu（禽流感）
malaria（疟疾）
plague（鼠疫）
Ebola(埃博拉)
①
②
③
Who Helped Defeat Malaria
Watch the video and leran about the symptoms (症状) of Cholera and how it spraed.
How is the disease spread
polluted water
flies
unwashed hands
Look at the picture, the title and the map, guess what the content of the text is.
The text is mainly about __________ and _____ he defeated king cholera.
John Snow Defeated “King Cholera”
John Snow
how
Predict
What order would you put them in
Stages of Scientific Research
______ analyse the results ______ ask a question
______ draw a conclusion ______ collect data
______ find a problem ______ find supporting evidence
______ think of a method
Read the text quickly; match the main ideas and analyze the structure.
Para1:
Para2:
Para3:
Para4:
Para5:
John Snow decided to prove the second theory.
John Snow desired to destroy cholera.
John Snow’s contributions.
John Snow began his study by marking on the map.
Truth of the infection of cholera.
Fast-reading
Read for the structure.
Para1:
Para2:
Para3:
Para4:
Para5:
John Snow decided to prove the second theory.
John Snow desired to destroy cholera.
John Snow’s contributions.
John Snow began his study by marking on the map.
Truth of the infection of cholera.
What&Who
How
Truth
Results
Fast-reading
Thinking
1.Read the passage carefully,find the following phrases and translate them.①an outbreak of; ②die from; ③in time; ④attend to; ⑤give birth;
⑥once and for all; ⑦in general; ⑧subscribe to; ⑨water pump; ⑩be to blame;
die of; it seemed that; as a result of; be likely to; tireless effort; thanks to
2.Complete task 3 and task 4 on page 3.
3.What scientific spirits can we learn from John Snow, according to the passage
Discussion
1.Find the following phrases and translate them.
①an outbreak of; ②die from; ③in time; ④attend to; ⑤give birth; ⑥once and for all; ⑦in general; ⑧subscribe to; ⑨water pump; ⑩be to blame; die of; it seemed that; as a result of; be likely to; tireless effort; thanks to
2.Complete task 3 and task 4 on page 3.
3.What scientific spirits can we learn from John Snow, according to the passage
Presentation
①an outbreak of;
②die from;
③in time;
④attend to;
⑤give birth;
⑥once and for all;
⑦in general;
⑧subscribe to;
①...的爆发
②死于...
③经过一段时间后
④照顾；照料
⑤生孩子
⑥最终地；彻底地
⑦总的说来
⑧同意；赞同
Presentation
⑨water pump;
⑩be to blame;
die of;
it seemed that;
as a result of;
be likely to;
tireless effort;
thanks to
⑨水泵
⑩应该受责备
死于
似乎
由于
很可能...
孜孜不倦的努力
由于；多亏了
Presentation
A: It was believed that cholera was caused by bad ____ or germs in _______________.
B:Snow___________________the places where the people who _____ had lived
C: Many deaths occurred near the ___________ in Broad Street.
Some people __________ drunk the water from the pump, and lived.
A woman and her daughter died in another part of London after ___________
_____________.
D: The pump water carried
____________.
conclusion
evidence
E: The _______ of the pump was removed.
process
solution
handle
theories
air
food or water
marked on the
died
water pump
hadn’t
drinking water
cholera germs
conclusion evidence process solution theories
map
from the pump
Para.1
brave
expert
professional
determined
caring, socially responsible
What scientific spirits can we learn from John Snow, according to the passage
rigorous
(严谨的)
creative, innovative
tireless, diligent
What scientific spirits can we learn from John Snow
hard-working patient wise knowledgeable(博学的)
devoted(全心全意的) creative(创新的) reliable calm (冷静的)
stubborn(顽强的) generous(慷慨的) responsible rigorous(严谨地) imaginative(富于想象力的) determined(坚定的)
innovative a questioning mind(质疑精神)
John Snow was a well-known ________ in London in the ___ century. He wanted to find the ______ of cholera in order to help people __________ it. In 1854 when a choler ____ London, he began to gather information. He _______ on a map ______ all the dead people had lived and he found that many people who had _______ (drink) the dirty water from the ______ died. So he decided that the polluted water _______ cholera. He suggested that the _____ of all water supplies should be _______ and new methods of dealing with _______ water be found. Finally, “King Cholera” was _______.
Fill in the blanks based on the text.
doctor
19th
cause
hit
marked
pump
source
examined
polluted
defeated
infected with
where
drunk
carried
Post-reading
To raise new questions, new possibilities, to regard old problems from a new angle requires creative imagination and marks real advance in science.
----Albert Einstein& Leopold Infeld
提出新的问题，发现新的可能，从新的角度审视已存在的问题，这些需要创造性的想象力，并标志着科学的真正进步。
—阿尔伯特·爱因斯坦 &利奥波德·英费尔德
Quote：
Thank you

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