人教版选择性必修第二册Unit 1 Period 1 Reading and thinking 课件

(共41张PPT)
Unit 1 Science and Scientists
Period 1 Reading and Thinking：
John Snow Defeats “King Cholera”
人教版 选择性必修二
人教版 选择性必修二
Period 1 Reading and Thinking：
John Snow Defeats “King Cholera”
Unit 1 Science and Scientists
1. Enable the Ss to get to know some knowledge about Cholera.
2. Enable the Ss to understand the passage well.
3. Let the Ss learn some reading skills by scanning and skimming.
4.To learn from the great scientists and develop the noble spirits .
Teaching Goals
Name some famous scientists you know and tell something about them.
Lead in
Who is he
Archimedes (阿基米德)
Which scientist discovered that objects in water are
lifted up by a force that helps them float
Charles Darwin.
Who wrote a book explaining how animals and plants developed as the environment changed
Who is he
Who invented the way of giving electricity to everybody in large cities
Who is he
Who is he
Who put forward a theory about black holes
Who is he
Who is he
John Snow
(1813-1858)
John Snow was born in York on March 15th, 1813, the oldest of nine children.
York
London
Do you know him
Reading
John Snow Defeats “King Cholera”
Look at the picture, the title and the map, guess what the content of the text is. Then skim it quickly to see if you are right.
Pre-reading
The text is mainly about ____________ and _______ he defeated king cholera.
how
keys
John Snow
Read it quickly and find out what order would you put the seven stages in
_____analyze the results _____ask a question
_____ Draw a conclusion _____ collect data
_____ Find a problem _____ Think of a method
_____ find supporting evidence
activity 1:
Keys:
draw a conclusion
think of a method
collect data
ask a question
find a problem
analyze the results
Find supporting evidence
7 stages
in right order
activity 2:
Read the text and find out the answers to the following questions.
1. What’s the purpose of the text
2. What inspired John Snow according to the first paragraph
3. What’s the use of John Snow’s map in his research
4. How did John Snow feel about the cause of cholera after he finished the map
5. Why was cholera called “King Cholera” in the text
activity 2:
Read the text and find out the answers to the following questions.
1. What’s the purpose of the text
To tell us how John Snow found the cause of cholera and the cure for it.
2. What inspired John Snow according to the first paragraph
To destroy Cholera once and for all.
3. What’s the use of John Snow’s map in his research
To help him find the reason of the cholera outbreak.
keys
activity 2:
Read the text and find out the answers to the following questions.
4. How did John Snow feel about the cause of cholera after he finished the map
Unsure
5. Why was cholera called “King Cholera” in the text
Because cholera was the most deadly disease of its day.
keys
What’s the cause of cholera
What is the problem
Cholera was one of the most feared disease of its day.
Nobody knew how to prevent or treat Cholera.
activity 3:
Finding the supporting details
Ask a question: two contradictory theories
1. bad air caused it.
2. It was caused by an infection from the germs in
food or water.
Broad Street
Many deaths happened here.
No death happened here.
The water from the pump was to blame.
Public house
The water was from the river
which had been polluted by
the dirty water from London.
Find supporting evidence: What extra evidence did he find
A woman and her daughter who lived far away but drank the water also died.
Draw a conclusion with certainty
The polluted water
carried the virus.
Read the text carefully and fill in the blanks.
Many people died of cholera.
John Snow tried to find out its _____ and ____
People drank water from the pump in ______ Street.
Multiple deaths.
cause
cure
Broad
Activity 4:Further Comprehending
Families were given free beer in the pub at __________ Street.
People removed the ______ from the water pump.
People had no
________
The disease
__________
Cambridge
deaths
handle
was stopped in its tracks.
_______ water carried the disease.
Theory 2 Cholera was caused by _______ ____ And theory 1 was wrong.
________ the source of all the water supplies.
Polluted
an infection
Examine
Group Discussion
1. John Snow believed Idea 2 was right. How did he finally prove it
John Snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected information and was able to tie cases outside the area to the polluted water.
2. Do you think John Snow would have solved this problem without the map
No. The map helped John Snow organize his ideas. He was able to identify those households that had had many deaths and check their water-drinking habits. He identified those houses that had had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause.
3. Cholera is a 19th century disease. What disease do you think is similar to cholera today
SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.
John Snow was a well-known ____ in London in the ___ century. He wanted to find the ______ of cholera in order to help people ________ it. In 1854 when a cholera ____ London, he began to gather information. He _____ on a map ______ all the dead people had lived and he found that many people who had _______ (drink) the dirty water from the ______ died. So he decided that the polluted water _______ cholera. He suggested that the _____ of all water supplies should be _______ and new methods of dealing with _______ water be found. Finally, “King Cholera” was _______.
Consolidation: fill in the blanks based on the text.
Retell the passage according to below:
John Snow was a well-known ________ in London in the ___ century. He wanted to find the ______ of cholera in order to help people __________ it. In 1854 when a choler ____ London, he began to gather information. He _______ on a map ______ all the dead people had lived and he found that many people who had _______ (drink) the dirty water from the ______ died. So he decided that the polluted water _______ cholera. He suggested that the _____ of all water supplies should be _______ and new methods of dealing with _______ water be found. Finally, “King Cholera” was _______.
doctor
19th
cause
hit
marked
pump
source
examined
polluted
defeated
Infected with
where
drunk
carried
1….he even attended to Queen Victoria when she gave birth.
1) to be present at, to go to 出席, 参加
~a meeting , ~a ceremony, ~a funeral,
~ a lecture, ~school, ~church
E.g. Your attendance (n.) at the meeting will be welcome.
2) to look after, care for, serve照顾，看护
Which doctor is attending (to/ on) you
There is a doctor in attendance on me.
language points
4）attendance n.
e.g There is a doctor in attendance.umber of people present 出席人e.g There was a large attendance at the concert.
音乐会听众很多.
3) to go with 伴随
The work was attended with much difficulty.
出席人数
照顾
2. …the cholera outbreak was so severe that more than 500 people died in ten days.
(1) so serious; so bad (人、纪律）严厉的， 严格的
I think you are too severe on the boy.
His severe looks frightened me.
(2) very harmful or painful (疼痛）剧烈的
He has a severe pain in his leg.
(3)be severe with: be strict with 对…要求严格
He is severe with himself.
3. John Snow suspected that the water pump was to blame.
~ sb. for …
~ …upon / on…：把…责任归于…
She ~d the failure of their marriage on him.
be to blame该受责备；应该负责 (不能用于被动语态)
I am to blame for our losing the game.
It’s I who am to ~ for our losing the game.
vt.责备, 谴责
4. It seemed that the woman like the water from the pump so much that…
so + adj /adv + that… 结果状语从句
He is so young that he can't go to school．
The box is so light that the child can lift it．
so…that…的否定句式可用 too…to…替换,肯定句式可用…enough to… 替换.
such＋a／an＋adj．＋n.(单)＋that从句 ；
such＋adj＋n(不可数、复数)＋that从句
We are such good students that all the teachers like us.
It is such a big room that it can hold so many people.
He has few books to read that he has to borrow some from the library.
so
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