（2019版）新人教版选择性必修第二册Unit 1Science and ScientistsReading and Thinking ppt课件 (2).pptx

1、Unit 1 Great ScientistsUnit 1 Great Scientists(Reading)(Reading)授课人：授课人：Do you know the scientists?ArchimedesCharles DarwinTuYouyouGregor MendelLeonardo da VinciMarie CurieThomas Edison Zhang HengZhong NanshanThe order of a scientific research1.Draw a conclusion 2.Think of a method 3.Collect 1.Draw

2、a conclusion 2.Think of a method 3.Collect data 4.Make a question data 4.Make a question 5.Find a problem 6.Analyse the results 5.Find a problem 6.Analyse the results 7.Find supporting evidence 7.Find supporting evidence Do you know how to prove a new idea in scientific research? Discuss in small gr

3、oups the stages in setting out a new scientific idea. What order would you put them in?By the end of the class, students will be able.1.to know about John Snow and cholera. 2.to master some reading skills , such as skimming and scanning . 3.to summarize the main idea and retell the stages for John S

4、nows research.4.to learn from the great scientists and develop the noble spirits .The textWhat will be talked about from the title?John Snow Defeats “King Cholera”Who ?How ?What ?ProblemPara1:Cholera was a deadly disease and people had no idea about its cause or its cure .Find a problemJohn Snow Def

5、eats “King Cholera” Cholera used to be one of the most feared diseases in the world, until aBritish doctor , John Snow , showed how it could be overcome. Thisillness causes severe diarrhoea, dehydration, and even death. In theearly 19th century, when an outbreak of cholera hit Europe, millionsof peo

6、ple died from the disease. As a young doctor, John Snowbecame frustrated because no one knew how to prevent or treat cholera.In time, he rose to become a famous Doctor, and even attended toQueen Victoria when she gave birth. However, he never lost his desireto destroy cholera once and for all.Para2:

7、Ask a questionJohn Snow Defeats “King Cholera”In general, doctors in those days had two contradictory theories to explain how cholera spread. One theory was that bad air caused the disease. The other was that cholera was caused by an infection from germs in food or water. Snow subscribed to the seco

8、nd theory. It was correct, but he still needed proof. Consequently, when an outbreak of cholera hit London in 1854, Snow began to investigate. He discovered that in two particular streets the cholera outbreak was so severe that more than 500 people died in ten days. He was determined to find out why

9、 .Topic:doctors in those days had two contradictory theories to explain how cholera spread.Para2:The two theoriesuCholera was caused by an _from _ in _ .QuestionHow did cholera kill people?Ask a questionJohn Snow Defeats “King Cholera”_ caused the disease.Bad airinfectiongermsfood or waterFind out t

10、he information about 1854; 2; 500; 10.1854: Another cholera outbreak hit London.2; 500; 10: In 2 particular streets, more than 500 people died in 10 days.What did John Snow do?He was determined to _ John Snow Defeats “King Cholera”find out why.Para3:John Snow marked information on a map to find out

11、where people died or did not die.Think of a method & Collect dataJohn Snow Defeats “King Cholera”Broad Street37403816209821Many deaths happened here.No death happened here.Public houseIt seemed that the water from the pump was to blame.Anayse the resultsJohn Snow Defeats “King Cholera”Read the para3

12、 and answer.Find supporting evidenceDraw a conclusionPump water carried the virus.Two deathsPlacePersonEventIn another part of London A woman and her daughterDied of cholera because of drinking the water delivered from the pump Remove the handle of the pumpThe disease slowing downJohn Snow Defeats “

13、King Cholera”1. What caused the out break of cholera in London in 1854?The water which came from the River Thames and had been infected by waste.Para. 4The truth was that the water from the Broad Street pump had been infected by waste. .Some companies sold water from the River Thames that was pollut

14、ed by raw waste.2. Was cholera destroyed completely？Through Snows tireless efforts, water companies. .However, cholera is still a problem. Each year, millions of people around the world get cholera and many die from it.Para. 5No.John Snow Defeats “King Cholera”The right order of a scientific researc

15、hFind a problemMake a questionThink of a methodCollect results Analyse the resultsFind supporting evidenceDraw a conclusion John Snow Defeats “King Cholera”Group-workingRead the whole passage again and talk about the question in groups.To set out a new scientific idea through a scientific research,

16、what qualities do you think are the three most important ones that the researcher should be equipped with? And give your reasons in brief.hard-working lazy patient edgy(hard-working lazy patient edgy(急躁的急躁的) ) sympathetic wise devoted selfish honest sympathetic wise devoted selfish honest reliable c

17、alm stubborn generous reliable calm stubborn generous responsible meticulous(responsible meticulous(缜密的缜密的) handsome ) handsome careful determinedcareful determinedIn order not to get infected with disease, what should we pay attention to in our daily life?Wear maskAvoid gatheringWash handsDo sportsAccording to seven steps of scientific research, work in group to make a presentation about how did our country fight against the COVID-19.Thank you!Thank you!