Post on 12-Jan-2016
Great scientists
Unit 1
John Snow defeats “king cholera”
What can you learn from the title?
人物:事件:
defeats cholera
John Snow 约翰 .斯诺 (1813
~ 1858), 英国麻醉学家、流行病专家。他首次提出了预防霍乱的措施。 1854 年 ,
伦敦霍乱流行 , 斯诺通过研究霍乱病死者的日常生活情况 ,
寻找到他们的共同行为模式 ,
发现了霍乱与饮用不洁水的关系 , 由于及时切断了二者的联系 , 有效制止了霍乱的流行。
Name of illness
cholera (霍乱 )
Symptom(症状 )
severe vomiting (呕吐 ) and diarrhoea (腹泻 ) ['vɔmit] [daiə'riə]
effect(后果 ) die quickly from a loss of liquid
What was the cause of this illness?
How did John Snow find it out?
Skimming
Reading Comprehension II
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 John Snow collected, analysed data and found the cause of cholera and defeated it.
Read the passage quickly
and find the number below
and the relevant happenings
in the passage.
Fast—reading:
Two theories
In 1854
500
The first suggested that…multiplied
in the air; The second suggested…
absorbed this disease into their bodies
with their meals.
Another outbreak hit London.
More than 500 people had died
in 10 days.
16, 37, 38 and 40
20, 21;
8, 9
7
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.
A map of Broad Street
What method did he use?Broad Street
Many deaths happened here.
No death happened here.
It seemed the water from the pump was to blame. What did he do next?
Public house
Read the passage and number these events in the order that they happened.
___ John Snow began to test two theories.
___ An outbreak of cholera hit London in1854.
___ John Snow marked the deaths on a map.___ He announced that the water carried the disease.___ John Snow investigated two streets where the outbreak was very severe.___ King Cholera was defeated.___ He found that most of the deaths were near a water pump.___ He had the handle removed from the water pump.
Answer: 2 1 4 7 3 8 5 6
John Snow was a well-known ______ 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.
doctor
19th
cause
defeat
broke
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 be __________
and new methods of ________ with polluted
water be found. Finally, “King Cholera” was
defeated.
marked
pump
source examined
dealing
What should we pay attention to in our daily life in order not to get infected with cholera?
Heal the food left overnight
Cook raw food thoroughly
Wash hands often
Keep away from flies
choose fresh sea food
Keep the kitchen clean
Dispose rubbish properly.
Drink boiled water
Discussion