资源简介

(共36张PPT)
Place the steps of scientific research in order
Think of a method
Collect data
Ask a question
Analyze the results
Find a problem
Find supporting evidence
Draw a conclusion
Place them in order
1
2
3
4
5
6
7
Think of a method
Collect data
Ask a question
Analyze the results
Draw a conclusion
Find a problem
Find supporting evidence
Unit 1 Science and Scientists
Reading and Thinking
John Snow Defeats “King Cholera”
By the end of this lesson, you will be able to:
Recognize the stages of scientific research ;
Understand John Snow’s scientific method；
Extract the outstanding qualities of scientists.
Learning Objectives
Pre-reading
Watch a video & answer 2 questions
① What’s wrong with the boy’s father
② What are the symptoms (症状) of Cholera？
Lead-in
Lead-in
Pre-reading
Watch a video & answer 2 questions
① What’s wrong with the boy’s father
② What are the symptoms (症状) of Cholera？
Lead-in
What are the symptoms (症状) of Cholera？
dehydration (缺水)
severe vomiting(呕吐)
diarrhea(腹泻)
It begins in the stomach and a severe case can lead to death without immediate treatment.
How should the boy and the nurse help his father
Let’s read the text and find out the solutions!
Who was John Snow
How did he defeat Cholera
What is Cholera
What might be talked about in the text
Pre-reading
The text is mainly about and he defeated king cholera.
John Snow
how
Para1
Para 2
Para 4
Para 5
John Snow desired to destroy cholera.
John Snow decided to prove the second theory.
Snow began his study by marking on the map
and the process.
Truth of the infection of cholera
Snow's contributions
Para 3
Read the passage quickly and get the main idea of each paragraph.
Activity 1: Read for the Structure
Reading
Para. 1:
What is cholera Who is Snow
Para. 2-3:
How did Snow defeat cholera
Para. 4:
The truth of cholera
Para. 5:
John Snow’s contribution
The structure of this passage
problem (Para 1)
theories (Para 2)
process (Para 3)
conclusion (Para 4)
solution (Para 5)
Activity 2:Read for Details (Para.1)
Listen to the tape and then fill in the blanks .
Thread: scientific research stages
Para.1
1. Who was John Snow
2. What is King Cholera
Cholera
It’s one of in the world, because it causes .
(when), an outbreak of cholera hit , millions of people .
John Snow
He rose to become , and even Queen Victoria when she gave birth.
However, he had a desire to once and for all.
Para.1
the most feared diseases
severe diarrahoea and dehydration
In the early 19th century
Europe
died from the disease
a famous doctor
attended to
destroy chlolera
Wide outbreak
Severe symptoms(症状）and even death
No way to control or prevent
......
Conclusion: Because cholera was so powerful that it was difficult to defeat.
Why was cholera called king cholera at that time
Further thinking:
Is it called the king because we admire him or we respect him
Activity 3:Read for Details (Para.2)
Read paragraph 2, compare the two contradictory theories and find a problem.
Thread: scientific research stages
Cholera was caused by an infection from germs in food or water.
bad air caused the disease
1. What were the two contradictory theories
2. Which did John Snow subscribe to
Two contradictory theories
It was correct,but he still needed proof.
Para.2
“totally different”
“agree with/support”
What method did John Snow use
Scientific research stages
stage 1: find a problem
stage 2: ask a question
stage 3：think of a method
Activity 4:Read for Details (Para.3)
Read paragraphs 3 and focus on the scientific procedures.
3rd stage: Think of a method
4th stage: Collect data
5th stage: Analyze the results(data)
6th stage: Find supporting evidence
7th stage: Draw a conclsion
Task 3
Thread: scientific research stages
Para.3
What method did John Snow use
By marking on a map
Reading Instrctions
*Collect data(Assistant)
Mark the pump
Mark the house with multiple death
(more than 4 deaths) in Broad Street
Mark the house with no death
*Analyse the result (John Snow)
Why are there multiple deaths or no deaths
What conclusion can be drawn from the map
Group work:You are John Snow giving a short report while your partner is the assistant who marks the information on the map.
They drunk the water from the pump.
They drunk free beer from the Public house.
pub
multiple deaths
happened near
the water pump.
Pair work
He suspected that the water from the pump was to blame.
Para.3
find the supporting evidence
assumption
Para.3
supporting evidence
conclusion
solution
results
assumption
Para.3
Summary: Stages of Scientific Research
find a problem
ask a question
collect data
think of a method
analyze the results
find the supporting evidence
draw a conclusion
Para.2-3
Activity5 : Read for details (Para 4-5)
Water companies began to sell clean water.
The threat of cholera around the world decreased.
He helped people know how to prevent cholera.
Snow transformed the way scientists study diseases.
2. What contributions(贡献) did John Snow make
The Father of Modern Epidemiology
1. What caused the outbreak of cholera in London
A. Bad air B. Water infected by raw waste
C. Polluted air D. Water polluted by the air
Critical thinking
Why could John Snow defeat King Cholera Discuss the qualities of John Snow based on what he did, giving evidence to support your conclusion.
Why was it John Snow, not other doctors, who defeated King Cholera Can you find the evidence from the text to support your idea
It was …that made him defeat cholera, since… (supporting details in the passage)
I believe that...helped him defeat cholera because…
brave
Para.1
brave
expert
professional
determined
caring, responsible
critical thinking;
questioning mind
creative, innovative
tireless, diligent
Example:
It’s my great honour to present this award to John Snow.
1. Snow’s contributions and effects
2. Snow’s good qualities and reasons
Let’s congratulate on him!
Suppose that John Snow were given a Lifetime Achievement Award, write a few lines to honor him in the ceremony.
Activity 6 : Transferring and creating
Show time!
Self-assessment
Do you understand John Snow’s research process
Are you inspired by John Snow’s outstanding qualities
Do you have a better understanding about how to be successful
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：
Homework
Compulsory Task
Read the passage about the biology(生物学)， and try to summarize the stages of the scientific research in this passage.
Optional Tasks
Explore the origin of COVID-19 and how to prevent it, then Write an essay about how Chinese scientists and doctors as well as common people fought against it.

展开更多......

收起↑