人教版高中英语必修五Unit 1 Great scientist Reading课件（29张）

课件29张PPT。Great scientists Unit 1JOHN SNOW DEFEATS
“KING CHOLERA”Reading1. To summarize and remember the
main idea of the passage.
2. To speak out the detailed information
of the passage.
3. To know more about John Snow and
his achievements.
4. To learn some useful words and
expressions in the passage.ObjectivesReading strategyskimmingscanninga general
idea certain
informationtitles and headingsthe first and last
sentences of paragraphsthe first and last paragraphspictures and chartsScan the text for
key words and phrases, dates, etc.Do not need to
read the whole
text.Skimming for general ideaAfter reading the passage,
match the following stages
with the paragraphs.Reading Comprehension ISkimmingStagesDraw a conclusion
Think of a method
Collect results
Make a question
Find a problem
Analyze the results
Find supporting evidenceFind a problemMake a questionThink of a methodCollect resultsAnalyse the resultsDraw a conclusionFind supporting evidenceParagraphs & Stages First we should find the problem.
Then, think of a method. We should
collect as much information as possible.
Analyzing results is the most
important stage.
Before we make a conclusion, it is
necessary for us to find supporting
evidence.SummaryWhat’s the main idea of the passage?
A. John Snow was a well-known doctor
in London.
B. The cause of cholera was polluted water.
C. The source of all drinking water should
be examined.
D. How John Snow collected, analysed
data and found the cause of the disease
and defeated the disease.Reading Comprehension IISkimmingReading Comprehension IIISkimmingRead the passage to find the main idea of each paragraph.John Snow wanted to use his
knowledge to solve cholera.He got interested in two theories.He needed to prove the second
theory was correct.He found out that dirty water was
the cause of cholera.Para. 1Para. 2Para. 3Para. 4Para. 6Para. 7Polluted water carried the virus.Finally “King Cholera” was defeated.Para. 5Cholera was spread by germs and
not in a cloud of gas.Scanning for specific informationRead the passage and number these
events in the order that they happened.___ John Snow began to test two theories.
___ An outbreak of cholera hit London in
1854.
___ John Snow marked the deaths on a
map.Reading Comprehension IVScanning___ He announced that the water carried
the disease.
___ John Snow investigated two streets
where the outbreak was very severe.
___ King Cholera was defeated.
___ He found that most of the deaths were
near a water pump.
___ He had the handle removed from the
water pump.Answer: 2 1 4 7 3 8 5 6 Reading Comprehension VWhy couldn’t the cholera be controlled
at first?
A. Its speed of spreading was so fast.
B. Its cause wasn’t understood
C. Its cure wasn’t understood.
D. Both B. & C.Scanning2. How many people died in 10 days
in two particular streets?
A. Less than 500.
B. More than 500.
C. More than 450.
D. Less than 450.3. What attitude did John Snow take to
the two supposed theories explaining
how cholera attacked people?
A. Doubtful but he could do nothing
about it.
B. Objective and he asked his assistants
to gather information.
C. Acceptable and he was sure about
the causes.
D. Reasonable but they remained to be
proved scientifically. 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.Reading Comprehension VIAnswer these questions.Scanning2 Do you think John Snow would have
solved this problem without the map?
Give a reason.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 was a 19th century disease. What disease do you think is similar to cholera today? Why?Three diseases, which are similar today,
are SARS, AIDS and bird flu, because
they are serious, have an unknown
cause and need public health care to
solve them.Discuss the question in groups. Group WorkWhat should you do if you're travelling to a country that has a cholera outbreak? Drink only water that you have boiled.
Other safe drinks include tea or coffee
made with boiled water, bottled
beverages with no ice.Discussion Eat only food that's been thoroughly cooked and is still hot, or fruit that you've peeled yourself.
Avoid undercooked or raw fish and shellfish.
Avoid raw salads and vegetables.
Avoid food and drinks from street vendors. 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 manydoctor19thcausedefeatbrokemarked Retell the text by filling in
the following blanks.people who had _______ the dirty water
from the ______ died. So he decided that the polluted water carried the virus. He suggested that the _______ of all the water supplies be _________. The water companies were _________ not to expose people to polluted water any more. Finally, “King Cholera” was defeated.pumpsourceexaminedinstructeddrunkSelf-assessmentFind more information about John Snow and cholera. expert, physician, absorb, enquiry, severe, foresee, pollute, link … to …, announce, instruct.2. 发挥想象，连词成文(50-100字)。Homework