Unit 1 Reading and Thinking （ppt课件）-2022新人教版（2019）《高中英语》选择性必修第二册.pptx

1、Unit 1 Science and scientistsUnit 1 Science and scientistsJohn Snow Defeats King CholeraLead in Are you familiar with these situations?Mask upGet vaccinatedSelf-isolation Positive measures are taken to fight against Covid-19.Besides coronavirus,what other kinds of epidemics(流行病流行病)do you know?Choler

2、aloss of liquid (缺水缺水)severe vomiting (呕吐呕吐)diarrhoea(腹泻腹泻)It begins in the stomach and a severe case can lead to death without immediate treatment.stages of scientific researchanalyse the resultsask a questiondraw a conclusioncollect datafind a problemfind supporting evidencethink of a methodOrder?

3、PairworkPairworkReadingReadingJohn Snow Defeats“King Cholera”Who is John Snow?What is King Cholera?When did it happen?Where did it happen?Why did John Snow need to defeat“King Cholera”?How did John Snow defeat“King Cholera”?5W+1HJohn Snow Defeats“King Cholera”A famous doctor who never lost his desir

4、e to destroy choleraOne of the most feared diseases in the world In the early 19th century in EuropeHow?Reading for informationa British doctorIn time,he rose to become a famous doctor and even attended to Queen Victoria when she gave birth.expert/experienced/knowledgeableThe father of modern epidem

5、iologyReadingReadingReading for informationIt used to be one of the most feared diseases in the world.cause severe diarrhoea,dehydration,and even death.no one knows how to prevent or treat choleraIt is still a problem.Fortunately,we know how to prevent it.deadlyuncontrollable“King”source?ReadingRead

6、ing Find the seven stages in Para.2&3 Para.2 Stage 1 find a problemto agree with or support an opinion,a theory,etc.Activity 2 Find the seven stages in Para.2&3 Para.2 Stage 2 ask a questionto carefully examine the facts or find out the truth or how it happenedActivity 2 Find the seven stages in Par

7、a.2&3 Para.3 Stage 3 think of a methodActivity 2 Find the seven stages in Para.2&3 Para.3 Stage 4 collect dataActivity 2 Find the seven stages in Para.2&3 Para.3 Stage 5 analyze the resultsthe water pump was to blameActivity 2 Find the seven stages in Para.2&3 Para.3 Stage 6 find supporting evidence

8、 Activity 2 Find the seven stages in Para.2&3 Para.3 Stage 7 draw a conclusion Reading for informationHow does cholera spread?1.Find a problemJohn Snows hypothesis(猜想)Why was cholera severer in 2 streets?.began marking on the map 2.Ask a question3.Think of a method many death near the pump some hous

9、eholds no deathJohn Snow suspected the water was to blame4.collect data5.analyse resultsa case of death away from Broad Street.6.Find supporting evidencewas able to announce that.7.draw a conclusionReadingReadingReading for thinkingAfter the remove of the handle,the spread of cholera in this area wa

10、s stopped.How about other parts in London?The government might ask all the water companies to provide clean water.What measures might they take?People might be educated not to drink raw water but pure or boiled water.not purifiedlarge in degreeReading for thinkingWhat made John Snow succeed in preve

11、nting “King cholera”?(try to find supporting details from the text)1.2.3.4.GroupworkGroupworkReading for thinkingexpertAs a young doctor,John Snow became frustrated.In time,he rose to become a famous doctor.determinedHe never lost his desire to cholera once and for all.careful/rigorous(严谨的)curious/q

12、uestioning mindHe suspected.He was able to announce.He discovered that in two particular streets.find out whycreativeReading for thinkingscientific spiritsscientific methodsscientific success The scientist is not a person who gives the right answers but the one who asks the right questions.Science is a way of thinking much more than it is a body of knowledge.The science of today is the technology of tomorrow.