1. Unit 1
Great scientists

2. John Snow defeats “king cholera”
What can you learn from the title?
人物：
事件：
defeats cholera

3. 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。

5. 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?

6. Reading Comprehension II
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.

7. Fast—reading: Read the passage quickly and find the number below
and the relevant happenings
in the passage.

8. 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.

9. 16, 37, 38 and 40 20, 21; 8, 9 7 These numbers in Broad Street
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.

10. Many deaths happened here.
What method did he use?
Broad Street
Public house
Many deaths happened here.
A map of Broad Street
No death happened here.
It seemed the water from the pump was
to blame. What did he do next?

11. 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:

12. Summary 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

13. 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

14. Discussion Drink boiled water Wash hands often
What should we pay attention to in our daily
life in order not to get infected with cholera?
Keep away from flies
choose fresh sea food
Keep the kitchen clean
Cook raw food thoroughly
Dispose rubbish properly.
Heal the food left overnight