Great-scientists

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Module 5 Unit 1 Great scientists

Warming up and reading

Who are they?

Guessing game

What do you know about great scientists? Try this quiz and find out who knows the most?

Are you ready?

Let’s go!

1. Which scientist discovered that objects in water are lifted up by a force that helps them float?

Archimedes

It’sXXXXX

Give me a place to stand and I will move the world !

2. Who wrote a book explaining how animals and plants developed as the environment changed?

Charles Darwin

3. Who invented the first steam engine?

James Watt

4. Who used peas to show how physical characteristics are passed from parents to their children?

Gregor Mendel

radium

5. Who discovered radium?

Marie Curie

Thomas Edison

He invented the way of giving electricity to everybody in large cities.

7. Who was the painter that studied dead bodies to improve his painting of people?

Leonardo da vinci

8. Who invented a lamp to keep miners safe underground?

Sir Humphry Davy

9. He invented the earliest instrument to tell people where earthquakes happened.

Zhang Heng

10. Who put forward a theory about black holes?

Do you know how to prove a new idea

in scientific research?

John Snow defeats “King Cholera”

What’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?did?John?Snow?collect,analyze?the?information,?

find?the cause?of?the?disease?and?solve?it?.?

Fast reading

The cholera was the most deadly disease

of its day. Neither its cause, nor its cure

was understood.

What caused cholera?

Details

Paragraph 1

What are the two theories?

idea 1

idea 2

Cholera multiplied in the air without reason.

A cloud of dangerous gas would float around

until it found its victims.

People absorbed it with their meals.

Paragraph 2

Paragraph 3

Gather information in another outbreak.

Another outbreak hit London.

More than 500 people had died in 10 days.

These numbers in Broad Street near the water pump had many of the deaths.

20 and 21 Broad Street and 8 and 9 Cambridge Street had no deaths.

These families worked in the pub at 7 Cambridge Street.

Paragraph 4

What happened to the pump water?

The water was from the river

which had been polluted by

the dirty water from London.

Paragraph 5

Paragraph 6:

What extra evidence did he find?

two other deaths

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 disease.

What should we pay attention to in our daily

life in order not to get infected with diseases?

Discussion

1.Retell the story.

2.Finish the questions of page 3.

Homework[全文已结束，注意以上仅为全文的文字预览，不包含图片和表格以及排版]

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