Draw a conclusion Think of a method
Please put the 7 stages in right order according to the passage.
Collect results
Make a question
Find a problem Analyse the results
Answer these questions. 1. John Snow believed Idea 2 was right. How did he finally prove it?
Who is he?
Who used peas to show how physical characteristics are passed from parents to
their children? He is …
Gregor Mendel
Who is he?
Who discovered radium?
that studied dead
bodies to improve his
painting of people?
He is …
Leonardo da Vinci
Who is he?
Who invented a lamp to keep miners safe underground?
He is …
Great Britain London
Germany
Death of first cholera case in London during the 1848-49 epidemic
3. Look at the picture, the map and the title and predict the content of the reading passage. Then skim it quickly to see if you are right.
I. To prove a new scientific idea,
seven stages are needed. Read the
text (P2-3) carefully and fill in the
blanks.
Stage 1 Find a A large number of people died problem of cholera, but neither its 1. cause nor its 2. _____ cure was _______ understood. Stage 2 Make a ◆ Theory one: Cholera 3. multiplied in the air and question ___________ floated around until it found its victims. ◆ Theory two: When people 4. absorbed cholera into their ___________ bodies with meals, their bodies were attacked.
人教课标 高二 必修 5 Unit 1
There are some great scientific achievements that have changed the world. Can you name some of them? What kind of role do they play in the field of science? Do these achievements have anything in common? Match the inventions with their inventors below before you answer all these questions.
John Snow
Read the text (P2-3) quickly and
complete the main idea of it. John The text is mainly about _____ defeated cholera Snow and how he _______________. ______
Alexander Bell Thomas Edison Laite Brothers Madame Curie Franklin Steven Hawking Elbert Einstein Isaac Newton
electricity the First telephone the electric Lamp black holes in Universe Theory of Gravity the First Plane Radium the Theory of Relativity
Many deaths happened here.
No death happened here.
The water from the pump was to blame.
The water was from the river which had been polluted by the dirty water from London.
Found supporting evidence
but
drank the water also died. drinking the water
Stage 7 Draw a
_____________________.
Polluted water ◆ 9. _______________
carried the virus.
Humphry Davy
Who is he?
Who put forward a
theory about black
holes?
He is … Stephen Hawking
1. Do you know how to prove a new idea in scientific research? Discuss in small groups the stages in setting out a new scientific idea. What order would you put them in?
பைடு நூலகம்
2. Why did John Snow use a map in his research? A. It could help him find exactly how many people died of cholera. B. It could help him find the source of drinking water for people. C. It could help him organize his ideas and find evidence. D. It could help him find his way in Broad Street.
Small, white, flocculent particles
Stage 6 Find
extra evidence: A woman and her supporting from two other deaths:
evidence Both of them of daughter who lived fardied away cholera after 8.
◆ All the water supplies should be 10.examined _________.
conclusion
I. Choose the best answer. 1. We know from the text that John Snow ______. A. had collected information before cholera broke out B. felt not quite sure after he finished the map C. helped the woman from Broad Street D. became famous after defeating cholera
Who is he?
Which scientist discovered that objects in water are lifted up by a force that helps them float? He is … Archimedes (阿基米德)
Who is he?
Who wrote a book
She is …
Marie Curie
Who is he?
Who invented the way of giving electricity to everybody in large cities?
He is …
Thomas Edison
Who is he?
Who was the painter
3. Why was cholera called “King Cholera” in the text? A. Because it caused many deaths. B. Because it got its name from Queen Victoria. C. Because it was defeated with the help of the King. D. Because it was the most deadly disease of its day.
___ 7 He announced that the water carried the disease. ___ 3 John Snow investigated two streets where the outbreak was very severe. ___ 8 King Cholera was defeated. ___ 5 He found that most of the deaths were near a water pump. ___ 6 He had the handle removed from the water pump.