人教新课标高中英语必修五 unit1 Great scientists reading课件 （共29张PPT）

(共29张PPT)
Pre-Reading


What five most important qualities do you think a great scientist should have?
Careful clever strict patient
creative strong-willed honest serious intelligent humorous ambitious generous
Do you know how to prove(证明) a new idea in scientific research?
Think of a method
Collect results
Make up a question
Find a problem
Analyse the result
Draw a conclusion
Repeat if necessary
What do you know about infectious diseases?
Infectious diseases can be spread to
other people. They have an unknown
cause and need public health care to
solve them.
What do you know about cholera ?
Cholera is a deadly diseases. If it infects people’s intestines(肠胃), causing diarrhea(腹泻), vomiting(呕吐) , leg cramps (小腿抽筋) or death.
(霍乱)
Look at the picture, the map and the title and predict the content of the reading passage.
Reading
Do you know what did this map was used for in 1854?
Finding out the cause of Cholera.
Who defeats “King Cholera“?
What happened in 1854?
How many people died in 10 days?
What is the main idea of the passage?
Task 1:Skim and Scan
1.Who defeats “King Cholera“?

2. What happened in 1854?

3. How many people died in 10 days?

4.What is the main idea of the passage?
John Snow
Cholera outbreak hit London.
500
How did John Snow defeat cholera.
The passage is written as a report of an experiment and there are 7 steps:
1.Find a problem:(发现问题)
2.Make up a question:(形成研究主题)
3.Think of a method:(找出研究方法)
4.Collect results:(收集材料)
5.Analyse results:(分析材料)
6.Repeat if necessary:(必要时重新分析)
7.Draw a conclusion:(得出结论)
Main ideas of this text
Para.1: About ______.
Para.2: Which ______ is right?
Para.3: Test two theories.
Para.4: Mark the ______on the map.
Para.5: Find the ______ of the water.
Para.6: Find the supporting evidence.
Para.7: ______ of cholera.
cholera
theory
source
Prevent
death
Task 2
Further understanding
I. 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.
Most died.
cause
cure
Broad
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
slowed down
_______ water carried the disease.
Theory 2 that people ________ the disease with their meals proved right. And theory 1 was wrong.
________ the source of all the water supplies.
Polluted
absorbed
Examine
II. True (T) or false (F):
1. Cholera would never be controlled even if its cause was found.
2. The disease attacked the body quickly from the stomach and soon the affected person died.
3. John Snow began to collect the information before the disease spread.
F
T
F
4. In two particular streets, 500 people died in 10 days when another outbreak hit London in 1854.
5. Deaths of the woman and her daughter were linked to the Broad Street outbreak.
6. Only ordinary people died when cholera broke out.
F
T
F
III. Choose the best answers.
1. What’s the purpose of the text?
A. To show us how difficult it was to find a cure for cholera.
B. To tell us how John Snow found the cause of cholera and the cure for it.
C. To show us how difficult it was to carry out experiments at that time.
D. To tell us the way cholera spread and how serious it was.
2. What inspired John Snow according to the first paragraph?
Being Queen Victoria’s personal
physician.
B. Finding where cholera happened.
C. Helping ordinary people who suffered
from cholera.
3. What’s the use of John Snow’s map in his research?
To help him find the number of dead
people.
B. To help him not lose his way.
C. To help him find the reason of the
cholera outbreak.
4. Why was cholera called “King Cholera” in the text?
A. Because cholera caused many deaths.
B. Because it got its name from Queen Victoria.
C. Because cholera was the most deadly disease of its day.
D. Because it was defeated with the help of the king.
5. Another title of the text might be ______.
John Snow and cholera
The discovery of cholera
C. John Snow: a great scientist
Task 3
Summary
Read the passage again and fill in the blanks:
John Snow was a well-known ______ in London in the ___ century. He wanted to find the ______ of cholera in order to ______ it. In 1854 when a cholera ______ out, he began to gather information. He ______ on a map where all the dead people had lived and he found that many people who had drunk the ______water from the ______ died. So he decided that the polluted water carried _____ . He suggested that the _____ of all water supply be _______ and new methods of ________ with polluted water be found. Finally, “King Cholera” was _______.
doctor
19th
cause
defeat
broke
marked
pump
source
examined
dealing
dirty
defeated
cholera
Discussion: Discuss the following questions in groups of four.
1.
2.
3.
Cholera was a 19th century disease. What disease do you think is similar to cholera today ? Why?
John Snow believed Idea 2 was right. How did he finally prove it?
Do you think John Snow would have solved this problem with- out the map? Give a reason.
Homework

1. Read the passage again to find out difficult phrases and sentences.
2. Finish Ex 1& 2, page 20.