Book 5 Unit 1 Great Scientist

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John Snow Defeats “King Cholera”

**_*学

张某某

Revision of what we have learnt

There was a very special teacher who made a far-reaching _________ in my life.????Fa11,1959,the first day of class at Bethesda Chevy Chase High School was ______ to begin, "Who" .I asked a senior, "is?my l0th grade English teacher?" He just _____ and said something?about my ______ in sorrow. Soon ,l understood _____ he meant. Mrs McNamara had a pattern of _________ that she?repeated again and again. We would have a literature reading task for_______. The next day, when we came?to class, there would ____ two or three topics on the blackboard______ to the homework reading.

We were______ to write an in-class essay about one of the topics. The following day , she would?______?the _______ (correct) and graded essays and each person would be called _________to stand in front of the class and to?_______ his/her essay.???? The first time I ________?her read-write-criticize method , I had not ________ to do the homework and had?written something _______ knowing what it meant ._______the extreme embarrassment I suffered , standing? before my classmates , _________?myself .

The?embarrassment came from ______ and along with it came a strong_1_not to let it happen again.??????Mrs McNamara kept all of our written work in files; it was easy to see the_18_ in writing that had?occurred. _____ was not so easy to see was the inner transformation that had taken ______, at least for me.What Mrs McNamara______??me to do was to see myself as others see me.

Lead-in

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

B. Archimedes

C. Thomas Edison

A. Charles Darwin

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

A. Marie Curie

C. Charles Darwin

B. Gregor Mendel

3.Who invent the first steam engine?

A. Thomas Newcomen

C. Thomas Edison

B. Archimedes

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

A. Thomas Edison

C. Archimedes

B. Gregor Mendel

5. Who discovered radium?

A. Marie Curie

C. Newton

B. Zhang Heng

6.Who invented the way of giving electricity to everybody in large cities?

A. Stephen Hawking 　

C. Thomas Edison

B. Archimedes

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

A. Gregor Mendel

C. Marie Curie

B. Leonardo da Vinci 　

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

A. Sir Humphry Davy 　

C. Faraday

B. Thomas Newcomen

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

A. Charles Darwin

C. Watt

B. Zhang Heng

10.Who put forward a theory about black holes?

A. Stephen Hawking

C. Copernicus

B. Archimedes

What impressed you most in 2003?

Neither its cause, nor its cure was understood.

Which person impress you most during the SARS?

What other infectious diseases do you know?

How do they spread from one person to another?

Do you know anything about cholera?

It was caused by drinking dirty water.

It caused a lot of deaths in the old times in Europe.

John Snow

Who helped to defeat the disease?

1 Why couldn’t cholera be under control at first?

2 Which theory did John Snow believe in?

3 John Snow finally proved the theory by ________.

A. gathering information with the help of a map

B. looking into the source of the water for Broad Street and Cambridge Street

C. Separating those who suffered cholera from those who didn’t

D. Both A and B

1 Why couldn’t the cholera be under control at first?

2 Which theory did John Snow believe in?

Neither its cause, nor its cure was understood.

People absorbed cholera into their bodies with their meals.

3 John Snow finally proved the theory by ________.

A. gathering information with the help of a map

B. looking into the source of the water for Broad Street and Cambridge Street

C. separating those who suffered cholera from those who didn’t

D. both A and B

To prevent the cholera from spreading again, what did John Snow do?

examine the source of all water supplies

not expose people to the polluted water

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 dirty water from the ______ died. So he decided that the polluted water carried cholera. He suggested that the _____ of all water supply be _______ and new methods of ________ with polluted water be found. Finally, “King Cholera” was defeated.

doctor

19th

cause

defeat

broke

marked

pump

source

examined

dealing

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