1、Unit 1 Great ScientistsReadingGreat scientists:What qualities do they have in common?hard workbraverydevotionpatiencelogical thinkingcareful observation an expert in her/his scientific areadraw a conclusion think of a method collect results make a questionfind a problem analyse the results find supp

2、orting evidenceHere are steps for a scientific research, what order would you put them in?John Snow Defeats “King Cholera”Who was John Snow?What was “King Cholera”?How do you understand the word “defeat”?Fast reading John Snow, (1813-1858) British, is an anesthetist（麻醉師） and more importantly , “ Fat

3、her of epidemiologist （流行病學(xué)家）”.Who was John Snow?- John Snow was a famous doctor in London so expert, indeed, that he attended Queen Victoria as her personal physician. (Line1&2) Name of illness Symptom(癥狀癥狀) Aftereffect (后果后果)cholera (霍亂霍亂), an infectious diseasesevere vomiting (嘔吐嘔吐) and diarr

4、hoea (腹瀉腹瀉)die quickly from a loss of liquid(液體液體)What was King Cholera?This was a deadly disease of its day. (Line4)How do you understand the word “defeats”? A. cure. B. control John Snow Defeats “King Cholera” Whats the main idea of the passage?A.John Snow was a well-known doctor in London.B.The c

5、ause of Cholera was polluted water.C.The source of all drinking water should be examined.D.How John Snow did a scientific research to collect, analyze data and find the cause of the disease and solved it .Para-graphSteps in doing a scientific researchDetailed information1Find a problem2Make a questi

6、on3Think of a method4Collect results5Analyse results6Find supporting evidence7Draw a conclusionCareful reading Para-graphSteps for a scientific researchDetailed information1Find a problem2Make a question3Think of a methodIntroduction to John Snow and cholera. What caused it?Between the two theory, w

7、hich was correct?John began his enquiry when cholera hit London in 1854. Fill in the blanks. 4Collect results5Analyse results6find supporting evidence7Draw a conclusionmarked information on a map to find out where people died or not.Looked into the water to see if it was the cause of the illness.Two

8、 people who lived in another street drank the same water and died. The source of water should be examined. Cholera was defeated.A map of Broad StreetBroad StreetMany deaths happened here.No death happened here.It seemed the water from the pump was to blame. What did he do next?Pub1. What are writing

9、 styles:showing a lot of facts, including time, place, characters and data;using maps or chart to help us understandusing formal and precise words and expressions.2. What do you think of John Snow, and what can you learn from him?Discussion Only by sticking to your dream can you make it come true.1.

10、 Write a short summary.2. Review the words and expressions on the blackboard.HomeworkWrite a short summary. Firstly, cholera was a deadly disease and John Snow, an expert in infectious diseases, .Secondly, .Thirdly, .Then, Next, After that, Finally, . King Cholera was controlled.1. Write a short sum

11、mary.2. Review the words and expressions on the blackboard.HomeworkHow did he defeat the King Cholera?Firstly, cholera was a deadly disease and John Snow, an expert in infectious diseases, was determined to find the cause.Secondly, there were two theories and he suspected the second one was the cause.Thirdly, he began his enquiry when another outbreak hit London in 1854.Then, he marked on a map where people died or not, from which, it seemed that the water was the cause.Next, John Snow looked into the source of the water and found tha