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(共34张PPT)
学习课文第四，五段
2022.11.15
UNIT 1
SCIENCE AND SCIENTISTS
before the class.....
To get information about how John Snow defeated cholera
To learn some language points
To talk about the significance and contribution of John’s work and learn to describe a great scientist
温故知新........
A map of Broad Street-”Cholera Map”
What method did Snow use
1) Which houses had more than 4 deaths in Broad Street
2) Which houses had no death in Broad Street and Cambridge Street
Multiple deaths happened here.
No death happened here.
Evidence
？
Read the map and get to know the research method further.
pump
He suspected that the water from the pump was to blame.
课文第四段
Aims:
1.Get the answer to the question:
What caused the outbreak of cholera in London
in 1854
2.Learn something about the language points.
The truth was that the water from fhe Broad Street pump had been infected by waste .Moreover , Snow was later able to show a link between other cases of cholera and the different water companies in London .Some companies sold water from the River Thames that was poluted by raw waste .The people who drank this water were much more likely to get cholera than those who drank pure or boiled water .
4.
1. What caused the outbreak of cholera in London in 1854
The truth was that the water from fhe Broad Street pump had been infected by waste .
Some companies sold water from the River Thames (that was poluted by raw waste .)
Moreover , Snow was later able to show a link between other cases of cholera and the different water companies in London .
The people who drank this water were much more likely to get cholera than those (who drank pure or boiled water.)
定语从句
定语从句
1.truth n.事实，真相/真实性，真理
true a.真的，真实的，真正的 true love（真爱）
truly ad.真实地，真诚地
翻译：不到长城非好汉
____________________________________________
“He who doesn't reach the Great Wall is not a true man.”
"Not a true man unless he comes to the Great Wall."
2.be infected by 被...污染
3. waste
raw waste
4.show a link between A and B
5.case n.情况,情形；
案例，案件，案子，实例；
箱子（a case of wine）
6.be likely to do sth... 很有可能...
be much more likely to do sth... 更有可能...
仿写：下周很有可能下雨，但更有可能下雪.
——————————————————————————
7.pure water 纯净水
boiled water 开水，煮沸了的水
boiling water 正在沸腾的水
It’s likely to rain next week,but it’s much more likely to snow.
1.truth n.
true a.
truly ad.
不到长城非好汉
____________________________________________
2.be infected by 被...污染
3.waste/raw waste
4.show a link between A and B
5.case n.情况；案例，案件，案子，实例；箱子（a case of wine）
6.be likely to do sth... 很有可能...
be much more likely to do sth... 更有可能...
7.pure water 纯净水
boiled water 开水，煮沸了的水
boiling water 正在沸腾的水
“He who doesn't reach the Great Wall is not a true man.”
"Not a true man unless he comes to the Great Wall."
summary
question time
Read paragraphs 4 and answer the question.
1.What caused the outbreak of cholera in London in 1854
Para. 4
The truth was that the water from the Broad Street pump had been infected by waste. … Some companies sold water from the River Thames that was polluted by raw waste.
The water which came from the River Thames and had been infected by raw waste.
课文第五段
A.Get the answers to questions:
1.Was cholera destroyed completely
2.How can we prevent cholera
B.Learn some language points.
Through Snow’s tireless eforts , water companies began to sell clean water ,and the threat of cholera around the worid saw a substantial decrease . However , cholera is stil a problem . Each year , milions of people around the world get cholera and many die from it . Fortunately , we now know how to prevent cholera , thanks to the work of John Snow .
Moreover , in his use of maps and statistics ,Snow transformed the way (scientists study diseases .) For this reason ,Snow is considered the father of modern epidemiology .
5.
从句定语
1.through sb’s tireless eforts 通过某人不懈的努力
tire v.（使）疲劳，疲倦
n. 轮胎 have a flat tire 车胎瘪啦 spare tire 备胎
tiredness 疲劳；疲倦
adj.
tired疲倦的；厌倦的
tiresome烦人的；无聊的
tiring累人的；麻烦的
tireless不知疲倦的；不疲劳的
adv.
tirelessly不知疲倦地
2.the threat of ...的威胁
threat n.威胁，恐吓
threaten v.威胁
常见考点
threaten sb. with ... 用……威胁某人
Don't you dare threaten me with my family!
你敢拿我的家人来威胁我！
adj.
threatened 受到威胁的
threatening 危险的
4.die from 死于...(外因)
die of 死于... (内因)
Many deer die ____ hunger.许多鹿死于饥饿.
Many soldiers died ___wound.
5.fortunately= luckily 幸运地（是）...
unfortunately=unluckily 不幸地（是）...
3.a substantial decrease 大幅减少
a substantial increase 大幅增加
6.thanks to
=owing to...
=due to… （一般不放在句首，常置于be动词后）
=because of...
=as a result of...
一句多译：
因为（新冠）疫情，我们不得不居家上网课.
_____________________________________.
_____________________________________.
_____________________________________.
新冠病毒
novel coronavirus
新冠肺炎
COVID-19
疫情
epidemic situation
居家
stay at home
上网课
study online
have online lessons/classes/courese
a.Thanks to/Owing to/Because of/As a result of...,we have to ...
b.We have to ...thanks to/owing to/because of/as a result of..
c.The reason why we...is because of+短语...
The reason why we...is because +句子...
1.through sb’s tireless eforts
通过某人不懈的努力
2.the threat of ...的威胁
3.see( saw seen) v. 拟人用法，表示“见证”
4.a substantial decrease 大幅减少
5.die from
die of
6.fortunately= luckily 幸运地
7.thanks to
=owing to...
=due to… （一般不放在句首，常置于be动词后）
=because of...
=as a result of...
summary
questions time
Read paragraphs 4 and 5 and answer questions.
1. Was cholera destroyed completely
2. How can we prevent cholera
Through Snow’s tireless eforts , water companies began to sell clean water ,and the threat of cholera around the worid saw a substantial decrease . However , cholera is still a problem . Each year , milions of people around the world get cholera and many die from it . Fortunately , we now know how to prevent cholera , thanks to the work of John Snow .
Moreover , in his use of maps and statistics ,Snow transformed the way scientists study diseases . For this reason ,Snow is considered the father of modern epidemiology .
Question 1 : Was cholera destroyed completely
Question 2 : How can we prevent cholera
Read paragraphs 5 and answer the question.
Question: Was cholera destroyed completely
Para. 5
Through Snow’s tireless efforts, … around the world saw a substantial decrease. However, cholera is still a problem. Each year, millions of people around the world get cholera and many die from it.
No.
adj. 大量的，实质性的=massive=considerable
Read paragraphs 4 and 5 and answerthe question.
Question:How can we prevent cholera
watch the video....
Question:How can we prevent cholera
Prevent the rivers from being polluted.
Water companies sell clean water.
People have to consume pure or boiled water.
Wash our hands often.
思考一下
Why was it John Snow, not other doctors, who defeated King Cholera
hard work
preciseness
passion
questioning mind
critical
thinking
creativity
determination
Why was it John Snow, not other doctors, who defeated King Cholera
scientific methods
That’s all for today!
Homework
1.笔记打卡.
2.小练笔：
参考左边图片，选择一两个词写三五个句子来描述一下John Snow.最好有理有据。依据可以在课文中寻找...

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