新课标人教版必修五Book5 Unit1 Reading

Unit 1 Great Scientists

Warming UpThere are some great scientific achievements that have changed the world. Can you name some of them? What kind of role do they play in the field of science? Do these achievements have anything in common? Match the inventions with their inventors below before you answer all these questions.

Do you know? Who discovered that objects in water are lifted up by a force that helps them float? Archimedes Who wrote a book explaining how animals and plants developed as the environment changed? Charles Darwin

Who invented the first steam engine? Thomas Newcomen Who used peas to show how physical characteristics are passed from parents to their children? Gregor Mendel

Who discovered radium? Maries Curie Who invented the way of giving electricity to everybody in large cities? Thomas Edison Who was the painter that studied dead bodies to improve his painting of people? Leonardo da Vinci

Who invented a lamp to keep miner safe underground?

Sir Humphrey Davy Who invented the earliest instrument to tell people where earthquakes happened? Zhang Heng Who put forward a theory about black holes? Stephen Hawking

Do you know who defeated “King Cholera”?

John Snow

John Snow is a well-known doctor in the 19th century in London and he defeated “King Cholera”. Do you know what kind of disease is cholera? It is a kind of terrible disease caused by drinking dirty water and it caused a lot of deaths in the old times and it was very difficult to defeat.

Pre-reading

1. What order would you put the seven in? When we want to solve some problem.First we should find the problem, do some research on it, prove your finding, and then make a conclusion. This is a scientific and objective way of researching.

find a problem make a question Please put the 7 stages in right order according to the passage.Think of a method Collect results

Analyze the resultsFind supporting evidence Draw a conclusion

Let’s get to know how Dr. John Snow defeated “King Cholera” in 1854 in London in this reading passage:

John Snow Defeats “King Cholera”

Skimming

Read the passage and number these events in the order that they happened. 2 ---- John Snow began to test the two theories. 1 ---- An outbreak of cholera hit London in 1854 4 ---- John Snow marked the deaths on a map 7 ---- He announced that the water carried the disease 3 ---- John Snow investigated two streets where the outbreak was very severe 8 ---- King Cholera was defeated 5 ---- He found that most of the deaths were near a water pump 6 ---- He had the handle removed from the water pump

Careful Reading

Task1: What happened in 1854?Cholera outbreak hit London.

How many people died in 10 days? 500 Why is there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street?These families had not drunk the water from the Broad Street pump.

Task 2: R

ead and answer1 Why couldn’t the cholera be under control at first? 2 Which theory did John Snow believe in? 3 John Snow finally proved the theory he believed 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 4 What ’s the extra evidence?

5 To prevent the cholera from spreading again, what did John Snow do? 6. 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 data and find the cause of the disease and solved it .

1 Why couldn’t the cholera be under control at first?Neither its cause, not its cure was understood.

2 Which theory did John Snow believe in?People absorbed cholera into their bodies with their meals.