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(共30张PPT)
Unit 1
Science and Scientists
Reading and Thinking
John Snow Defeats “King Cholera”
Lead in
What kind of disease do you remind of
COVID-19 pandemic
It is a highly infectious disease and it can spread from person to person.
How does it spread
flu
cholera
The story of cholera
How does cholera spread
Where did “I” go for help
VS
John Snow
King Cholera
London
London Good place! Wait for me.
(frustrated) So many deaths…
I must destroy cholera, once and for all!
John Snow
King Cholera
Cholera broke out in London in the early 19th century.
Game loading…
As a Chinese saying goes, “Know the enemy and know yourself”, please help me to know more about king cholera.
John Snow
the most feared diseases
death
Millions
A famous doctor
Britain
He attended to Queen Victoria when she gave birth
What does “ King ” imply in the title
The name of cholera
The causes of cholera
Cholera spread fast
Cholera is powerful and hard to cure
the most feared diseases
death
Millions
A famous doctor
Britain
He attended to Queen Victoria when she gave birth
But how can I start Maybe I should make clear the stages of research first…
John Snow
Finish the order of research
Please help me put them in the correct order.
1
4
5
7
Entering task2…
Which theory should I choose
Task2: Stage 1
find a problem
Stage 2
ask a question
caused by ________
caused by _______
bad air
germs

What was the problem
It is about how Cholera spread.
Why was cholera so severe in the two particular streets
a map
Stage 3
think of a method
The map is designed to the places where the people who had lived. It is helpful to to
mark
died
What does “—” mean
What kind of map is it
What does “PH” mean
What does 30, 31,...refer to
collect data
It means one death.
It’s a death map.
It means public house, a house such as bar or pub.
They refer to numbers of houses.
Why
Stage 4
collect data
Stage 5
analyze the results
There were deaths occurred near the in Broad Street, however some households had deaths.These people worked in the in the Cambridge Street, where they were given , so some people who the water from the pump, survived.
multiple
no
pub
free beer
had not drunk
was to blame
Suspect that the water from the pump .
pump
Stage 6
find supporting evidence
( Para.3 )
a woman and her daughter died of cholera,
In another part of London,
after moving away from
It seemed that the woman liked the water from the pump so much
that she had it
Broad Street.
delivered to her house every day.
Stage 7
Draw a conclusion
What was the result of John Snow’s research
the handle of the pump was removed.
Was the disease stopped in its tracks
How to prevent epidemics in its tracks
polluted water
flies
unwashed hands
Drink clean water
Open windows to let air flow
Do more hand-washing
Snow had the_______ of the pump removed.
E
Activity 3 Read for detailed information in Para.2 & 3
It was believed that
cholera was caused
by _______ or germs in _____________.
A
Snow __________
_______the places where people who
_____ had lived.
B
bad air
food or water
marked on
died
The pump water carried____________.
D
cholera germs
handle
a map
Steps in the research
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 ____________ ______________.
C
water pump
had not
from the pump
drinking water
Snow had the_______ of the pump removed.
E
Activity 4 Match the following headers with the letters from the chart below.
It was believed that
cholera was caused
by _______ or germs in _____________.
A
Snow __________
_______the places where people who
_____ had lived.
B
bad air
food or water
marked on
died
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 ____________ ______________.
C
water pump
had not
from the pump
The pump water carried____________.
D
cholera germs
handle
a map
from problem to solution
theories
process
evidence
conclusion
solution
drinking water
S1： It seemed that the woman liked the water from the pump
so much that she had it delivered to her house every day.
have sth. done 结构
so….that 引导结果状语从句
It seemed that … “看来……”, that引导表语从句
It＋不及物动词(短语)＋that从句.
常用于该句型结构有：
It seemed that...(看上去) It happened that …(碰巧)
It turned out that …(证明是) It appeared that...(显得)
这位女士似乎非常喜欢从泵里抽上来的水，以至于她每天都让人把水送到她家里。
单句语法填空
(1) _____seems that most houses have been destroyed by the storm.
(2) It appears _______he has a talent for playing the piano.
完成句子
(3)________________(事实证明) we were wrong.
(4)____________________（他突然想到） he had an important meeting to attend the next morning.
(5)__________________（碰巧）the harvest was bad that year.
It
that
It occurred to him that
It happened that
It turned out that
“have＋宾语＋宾语补足语”的用法有以下几种：
have sb. /sth. doing 让某人做某事(动作具有持续、进行含义)
have sb. do 让某人做某事（省略to）
have sth. done 让/请别人做某事；遭受到
1. They had the car ___________(run)all the way.
2. She had planned to have her daughter_______ (marry) Laurie.
3. We had the house ________(clean) before we moved in.
marry
running
cleaned
have sth. done 的语法意义:
让某事被做（不具体指出是谁做的）。
如：We had the machine repaired.
2. 主语遭受某种不幸
如：Yesterday I had my wallet stolen.
无生命的名词 +see/find/witness... …见证、目睹某事 → 无灵主语
S2...the threat of cholera around the world saw a substantial decrease.
……世界各地霍乱的威胁大幅降低。
S3: Moreover, in his use of maps and statistics, Snow transformed the way scientists study diseases.
此外，通过使用地图和统计数据，斯诺改变了科学家研究疾病的方式。
主从复合句“scientists study diseases”是省略了关系代词的定语从句，修饰“the way”。
在含有定语从句的复合句中，the way作先行词时有以下三种情况：
(1)关系词在定语从句中作状语，关系词用in which，that或省略。
(2)关系词在从句中作主语，关系词用that或which。
(3)关系词在从句中作宾语，关系词用that, which或省略。
S4 Snow began by marking on the map the exact places where all those who died had lived.

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