Do these people

have

anything

in common?

Can you say these famous names in English?

霍金爱迪生

居里夫人张衡

孟德尔阿几米德达 · 芬奇达尔文

HawkingEdisonMarie CurieZhang HengMendelArchimedesDa VinciDarwin

Great scientists

What do you know about great scientists?

• The following is a quiz and let’s find out who knows the most.

Which scientist discovered that

objects in water are lifted up by a force

that helps them float?

ArchimedesArchimedes

It’s…It’s…

Who wrote a

book explaining

how animals

and plants

developed as

the environment

changed?

Charles DarwinCharles Darwin

Who invented the first steam engine?

steam engine

It’s used for taking water out of It’s used for taking water out of mines.mines.

James Watt

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

Gregory MendelGregory Mendel

It’s used in the treatment of some diseases, especially cancer.

radiumradiumWhat’s this?What’s this?

Who discovered radium?

Marie Curie

Who invented the way of giving

electricity to everybody in large

cities?

Thomas EdisonThomas Edison

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

Leonardo da Vinci

Who invented a lamp to keep miners safe underground?

Sir Humphry Davy

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

Zhang Heng

Do you know what black hole means?

Who put forward a theory about black holes?

发现问题提出假设思考方法收集资料分析结果寻找证据得出结论

THINK

WORK

FIND

How do the scientists usually do scientific research?

(The process)

Find a problemMake a questionThink of a methodCollect results Analyse the resultsFind supporting evidenceDraw a conclusion

SOLVE…?

Draw a conclusion Think of a method

Collect results Make up a question

Find a problem Analyse results

Find supporting evidence

Do you know how to prove a new idea in scientific research? Discuss

the stages in setting out a new scientific idea. What order would you

put them in?

relating to science, or using the organized methods of science.

scientificscientific

a scientific discovery

a scientific experiment

a scientific theory

What order( 顺序 ) would you put them in?

Think of a methodThink of a method

Collect resultsCollect results

Make up a questionMake up a question

Find a problemFind a problem

Analyse the resultAnalyse the result

RepeatRepeat if necessary if necessary

Draw a conclusionDraw a conclusion

What do you know about infectious diseases?

Severe Acute Respiratory Syndrome

严重急性呼吸道综合症

What do you know about infectious diseases?

influenza A (H1N1)

甲型 H1N1 流感

Are they terrifying?

• What did you do facing them?

Hygiene( 卫生保健 )

Mask

Cholera is the illness caused by a bacterium called

Varian cholera. If infects people’s intestines( 肠胃 ),

causing diarrhea, vomiting and leg cramps( 腹痛 ). The

most common cause of cholera is by someone eating food

or drinking water that has been contaminated( 污染 )

with the

bacteria.

2. What do you know about cholera?

• Cholera can be mild( 不严重的 )

or even without symptoms( 症状 ), but a severe case can lead to

death without immediately

treatment.

A brief introduction of cholera

Broad Street

Bacteria / germs of cholera

It infects people’s intestines( 肠道 ), causing diarrhoea( 腹泻 ), vomiting( 呕吐 ) and dehydration( 脱水 )

It infects people’s intestines( 肠道 ), causing diarrhoea( 腹泻 ), vomiting( 呕吐 ) and dehydration( 脱水 )

Many deaths in African countries in 2005and even nowMany deaths in African countries in 2005and even now

5oo deaths in 10 days in 1854 in London.5oo deaths in 10 days in 1854 in London.

Look at the picture, the map and the title and predict the content of the reading passage.

John Snow Defeats “King Cholera”John Snow Defeats “King Cholera”

John Snow• British ( 1813~ 1858)

• a legendary( 传说中的 ) figure in the history of public health, epidemiology（流行病学） and anesthesiology （麻醉学）

John Snow is a well-known doctor in the 19th century in London and he defeated “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 John Snow collected, analyzed data and found the cause of the disease and solved it .

Skimming

Use the seven stages in examining a new scientific

idea to describe each paragraph.

draw a conclusion

find a problem

make up a question

think of a method

collect results

analyse the results

find supporting evidence

Para 1

Para 2

Para 3

Para 4

Para 5

Para 6

para 7

Find a problem What causes cholera?

Make up a questionWhich theory is correct?

Think of a method Collect data on those who were ill or died and where they got their water.

Para. 1

Para. 2

Para. 3

Para. 5Analyse the resultsAnalyse the water to see if that is

the cause of the illness.

Para. 6

Find supporting evidenceFind other evidence to confirm

your conclusion.

Para. 7Make a conclusionThe water is to blame. The source

of all drinking water should be examined so that it is safe.

Para. 4Collect resultsPlot information on a map to find

out where people died or did not die.

1. Learn more about great

scientists.

2. Review the vocabulary.

3. Read the text carefully.