Book5 Unit1

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**_*学

---张某某

Reading

Unit 1 Great scientists

Thomas Edison

Who is he?

His famous saying is: Genius

is one percent inspiration

and ninety-nine percent perspiration.

Who invented the bulb?

Lead -in

Scientist’s persperation refers to scientists’ hard research work. So here in this passage students will learn about how John Snow made great efforts to do his research work on cholera.

Reading

John Snow Defeats “King Cholera”

John Snow

Skimming

Read Paragraph1and Paragraph7 quickly and complete the main idea of it.

The text is mainly about _____

______ and how he _______________.

John

defeated cholera

Snow

Read from Paragraph2 to Paragraph6 quickly(scanning skills) and find out the answers to these three questions.

1.What was the cause of this disease ?

Scanning:

The polluted drinking water from the pump.

2.How did John Snow find it out?

By doing careful scientific research on the disease.

3.What was done after people living Broad Street knew the water was the reason for cholera?

The handle of the pump was removed to stop people from getting the polluted water.

Look at the title “John Snow defeats king cholera”.

Why was it called king cholera?

Because it was a deadly disease of its day with great power to kill my people, just like a king.

Group

Discussion

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.

1

2

4

Careful reading

___ 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.

3

5

6

7

8

I. To prove a new scientific idea, seven stages are needed. Read the text carefully and fill in the blanks.

Careful reading

Find a problem

Make a question

What caused cholera?

Which theory is correct?

Think of a method

Collect results

Analyse the results

Gathered information on those who fell ill or died and where they lived.

Marked where the dead people had lived on a map.

Looked into the source of the water to see if the problem was the water.

Find supporting evidence

. Found supporting evidence from two other deaths: Both of them died of cholera after drinking the water.

Draw a conclusion

◆ polluted water

carried the virus.

◆ All the water supplies should be examined.

What kinds of qualities did John Snow possess?

He had good qualities most scientists share,such as strong-willed, talented, hard-working, careful, serious, perseverance etc.

Group

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.

Group

Discussion

How to protect ourselves from infectious diseases?

Avoid raw salads and vegetables.

Avoid food and drinks from street vendors.

"Boil it, cook it, peel it, or forget it."

Group

Discussion

Pick out the key words or

expressions in each paragraph

that can best illustrate the stages in a scientific experiment.

Practising

1.a deadly disease

2.Aborbed the disease into bodies?

3.Gathered information

4.Marked the data on the map. 5.polluted dirty water

6.two other deaths

7.Not expose people to polluted water .

Key words and expressions:

Practising

Thank you![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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