内容正文:
Look & discuss
Where do you think this photo was taken?
Science and Scientists
Unit 1
I think it was taken in a chemistry laboratory at school.
It looks like they are conducting an experiment.
What are the students doing in the photo?
1
Unit 1 Reading and Thinking
Understand the questioning mind
What disease can you think of when you look at these pictures?
COVID-19 outbreak
what
why
a severe infectious disease
lead to high fever and dry cough
numerous people die from it
human-to-human transimision
how?
Thus, many doctors, including doctor Zhong suspected the disease was caused by human-to human transimission, so he went to Wu Han to investigate and find more proofs.
At first, people thought the bat was to blame for the disease .
However, those who went to Wu Han or got close to people from Wuhan were more likely to be infected. Also, Wuhan had more multiple severe cases.
How to find the proof of a disease?
By doing scientific research
stages of scientific research
analyze the results
ask a question
draw a conclusion
collect data
find a problem
find supporting evidence
think of a method
Order ?
Pairwork
1
2
7
4
5
6
3
In the early 19th century, an infectious disease similar to Covid-19 hit Europe.
Now, let's read a passage to learn about it.
Prediction
Look at the title and pictures, what question will you raise?
John Snow Defeats “King Cholera”
Who ?
How ?
What ?
The text is mainly about ____________ and _______ he defeated king cholera.
how
John Snow
?
We can predict that…
John Snow Defeats “King Cholera”
skimming
Skim the passage, find out the main idea and choose the correct key words to summarize each paragraph.
Paragraphs Main idea
1
2-3
4
5
What? Who?
How?
The truth
Results and significance
What’s the main idea of the passage?
John Snow was a well-known doctor in London.
The cause of Cholera was polluted water.
The source of all drinking water should be examined.
How did John Snow collect, analyze the information, find the cause