1. Unit 1 Great scientists

2. Do you remember them? Dr Yuan Longping Stephen Hawking
I put forward the theory about black holes.
I’m the father of super hybrid rice.

3. Guessing game
Who are they?

4. Who is he? He is called the greatest scientist in the 20th century.
He is famous for the Theory of Relativity.
He is …
Albert Einstein

5. Who is he? Thomas Alva Edison He invented electric bulbs.
He made more than 1,000 inventions during
his life.
He is …
Thomas Alva Edison
Thomas Alva Edison

6. Who is he? He made the first telescope in the world.
His observations show that the earth moves
around the sun.
He is …
Galileo Galilei

7. Who is she? Marie Curie (Polish) She is a woman scientist.
She discovered radium(镭)and polonium(钋).
In her life, she won the Nobel Prize twice.
She is …
Marie Curie (Polish)

8. Who is he?
He helped to defeat “King cholera”?
He is …
John Snow

9. John Snow defeats “King cholera”
From the Title
What is the passage about?
Scientific research.

10. Stages Draw a conclusion Think of a method Collect results
Make a question
Find a problem
Analyse the results
Find supporting evidence

11. Fast-reading Draw a conclusion Para.1 Think of a method Para.2
Collect results
Para.3
Make a question
Para.4
Para.5
Find a problem
Para.6
Analyse the results
Para.7
Find supporting evidence

12. Detailed-reading Para.1: Find a problem
Cholera killed a lot of people. (how)

13. Theory 1 Theory 2 Para.2: Make a question: what caused cholera?
Cholera multiplied in the air. A cloud of dangerous gas floated around until it found its victims.
Theory 1
People absorbed this disease with their meals.
Theory 2

14. Para.3-4: Think of a method and collect the results
A map of Broad Street

15. Many deaths happened here. The water from the pump was to blame.
Pub
Many deaths happened here.
No death happened here.
The water from the pump was to blame.

16. Para.5-6: Analyse the results and find supporting evidence.
Look into the source of the water and two other deaths that are linked to the Broad Street outbreak.

17. Para.7: Draw a conclusion.
The polluted water is to blame.

18. Retelling
What?
Why?
How?
An outbreak of cholera hit London in 1854.Through careful investigation and analysis with the help of a map, John Sown got a conclusion that the water was to blame. As a result, King Cholera was defeated.

19. Discussion Drink boiled water Wash hands often
What should we pay attention to in our daily
life in order not to get infected with cholera?
Keep away from flies
choose fresh sea food
Keep the kitchen clean
Cook raw food thoroughly
Dispose rubbish properly
Heat the food left overnight