How to prove a new idea in scientific research?
⑦ Make a conclusion ③ Think of a method ④ Collect results ② Make up a question
① Find a problem ⑤ Analyse the results ⑥ Repeat if necessary
2.John Snow finally proved the theory he D 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
The problem Nobody knew the cause of the serious disease of cholera
Idea1: strange cloud in the air that attacked people. The cause Idea2: people absorbed the disease with their meals. Collect data from the next cholera The method attack to test the two theories, and try to prove which method was correct.
Task 3: choose the best answer
1.John Snow believe in the theory that C ________. A. cholera multiplied in the air without reason B. Cholera attacked people when they breathed dirty water C. People absorbed cholera into their bodies with their meals D. Cholera attacked people by destroying their stomachs
electricity the First telephone the electric Lamp(灯) black holes in Universe Theory of Gravity the First Plane Radium the Theory of Relativity
1. Which scientists discovered that objects in water are lifted up by a force that helps them float?
Unit 1 Great Scientists
Step 1 warming-up
How many scientists do you know?
Match
the inventions with their inventors.
Alexander Bell Thomas Edison Laite Brothers Madame Curie Franklin Steven Hawking Elbert Einstein Isaac Newton
John Snow
2. What happened in 1854?
Cholera outbreak hit London.
Task 2: T or F 1. Cholera was the deadly disease of its day. T
2. John Snow attended Queen Victoria as her personal T physician.
3.To prevent cholera from spreading again, D John Snow ________. A. instructed the water companies not to expose people to polluted water any more B. suggested the source of all water supplies be examined C. suggested that new methods of dealing with water be found D. all of above
Archimedes 阿基米德
2. Who wrote a book explaining how animals and plants developed as the environment changed?
Charles Darwin
达尔文
5. Who discovered radium?
Stephen Hawking
斯帝芬 霍金
Do you know 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?
Do you know what did this map was used for in 1854? Finding out the cause of Cholera.
Step 2 Reading Task1:Skim and Scan
1. Who defeats “King Cholera“?

Task 5:Sum up John Snow was a well-known ______ doctor in London in the 19th ___ century. He wanted to find the ______ of cholera in order to cause ______ defeat it. In 1854 when a cholera ______ broke out, he began to gather marked on a map where information. He ______ all the dead people had lived and he found that many people who had drunk the dirty water from the ______ died. So pump he decided that the polluted water carried cholera. He suggested that the _____ source of all water supply be _______ examined dealing and new methods of ________ with polluted water be found. Finally, “King Cholera” was defeated.
Scientific Report by John Snow
He found that the deaths around the The results Broad Street pump and the supporting evidence showed that cholera was caused by the polluted water. Idea1 or 2? Idea2 because there was a connection Why? between the drinking people and the deaths. The John Snow was able to show that conclusion cholera could be defeated now that its cause was known.
Marie Curie 居里夫人
6. Who invented the way of giving electricity to everybody in large cities?
Thomas Edison 爱迪生
7. Who was the painter that studied dead bodies to improve his painting of people?
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.
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”
The passage is written as a report of an experiment and there are 7 steps:
1.Find
a problem:(发现问题) 2.Make up a question:(形成研究主题) 3.Think of a method:(找出研究方法) 4.Collect results:(收集材料) 5.Analyse results:(分析材料) 6.Repeat if necessary:(必要时重新分析) 7.Draw a conclusion:(得出结论)