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1、Great scientistsUnit 1 Read the new words and phrases on P91New words readingWarming up When we talk about great scientists,who will come into your mind?BrainstormingFather of hybrid riceYuan Longping“The weak one sits and waits the opportunity;The powerhouse makes the opportunity.”弱者坐待时机；强者制造时机。弱者坐
2、待时机；强者制造时机。She got two Nobel Prizes,one for physics and the other for chemistry.Madame Curie 居里夫人居里夫人“If I have seen further,it is by standing on the shoulders of gaints.”Isaac Newton艾萨克艾萨克牛顿牛顿“Genius is one percent inspiration and ninety-nine percent perspiration.”Thomas Edison 托马斯托马斯爱迪生爱迪生Match th
3、e scientists with their achievementsAlbert Einstein 1.evolution(进化论进化论)Charles Darwin 2.discovery of radiumMadame Curie 3.electric bulbThomas Edison 4.theory of relativityNicolaus Copernicus 5.a brief history of timeStephen Hawking 6.the earth moves around Yuan Longping the sun 7.father of hybrid ri
4、cePrevious knowledge12345678910Archimedes 阿基米德阿基米德1.Which scientist discovered that objects in water are lifted up by a force that help them float?Lets do a quiz about some scientistsa Greek mathematician mmtnmmtn“Give me a place to stand on,and I will move the earth”2.Who wrote a book explaining ho
5、w animals and plants developed as the environment changed?Charles Darwin 达尔文达尔文 Lets do a quiz about some scientistsThe Origin of Species3.Who invented the first steam engine?Thomas Newcomen 纽科门纽科门 Lets do a quiz about some scientistsWatt瓦特瓦特Thomas Edison托马斯托马斯 爱迪生爱迪生4.Who used peas to show how phys
6、ical characteristics are passed from parents to their children?GregorGregor Mendel Mendel门道尔门道尔门道尔门道尔 Lets do a quiz about some scientistsIsaac NewtonIsaac Newton 牛顿牛顿牛顿牛顿Madame Curie 居里夫人居里夫人5.Who discovered radium in 1898?She received two Nobel Prizes,one for physics and one for chemistry.Madame C
7、urie 居里夫人居里夫人 Lets do a quiz about some scientists 6.Who invented the way of giving electricity to everybody in large cities?Thomas Edison 爱迪生爱迪生 Lets do a quiz about some scientists 7.Who was the painter that studied dead bodies in order to improve his paintings of people?Lets do a quiz about some
8、scientistsLeonardo da Vinci达芬奇达芬奇8.Who invented a lamp to keep miners safe underground in 1815?Lets do a quiz about some scientistsSir Humphry Davy 大卫大卫汉弗莱汉弗莱Thomas EdisonThomas Edison 爱迪生爱迪生爱迪生爱迪生Watt瓦特瓦特9.Who invented the first seismograph to indicate in the direction of an earthquake?Zhang Heng L
9、ets do a quiz about some scientistsSeismograph saizmr:f10.Who put forward a theory about black holes?Stephen Hawking 霍金霍金 Lets do a quiz about some scientistsReadingTHINKWORK FINDPre-reading:How to prove a new idea in scientific research?Find a problemMake a questionThink of a methodCollect results
10、Analyze the resultsFind supporting evidenceDraw a conclusionSOLVEWhat infectious diseases do you know?Infectious diseases can be spread to other people.They have an unknown cause and need public healthcare to solve them.It is a kind of terrible disease caused by drinking dirty water and it caused a
11、lot of deaths in the old times and it was very difficult to defeat.What do you know about cholera?Do you know this person?vA well-known doctor in the 19th century in London.vA legendary figure in epidemiologyep,di:mi:ldi:(流行流行病学病学)and anesthesiology(麻醉学麻醉学)nis,izildiJohn Snow(1813 1858)Prediction:wh
12、ats the text about?vAccording to what we have known above and the title of the text,can you predict what the text is about?John Snow Defeats“King Cholera”Number these events in the order that they happened.v John Snow began to test two theories.v An outbreak of cholera hit London in 1854.v John Snow
13、 marked the deaths on a map.v He announced that the water carried the disease.v John Snow investigated two streets where the outbreak was very severe.v King Cholera was defeated.v He found that most of the deaths were near a water pump.v He had the handle removed from the water pump.21473856Fast rea
14、dingParagraphStagesGeneral ideas1Find a problem The _ of cholera causesCareful reading1.Use the seven stages in setting out a new scientific idea to describe each paragraph.2Theory two:When people _ cholera into their bodies with meals,their bodies were attacked and soon they died.Theory one:Cholera
15、 _ in the air and dangerous gas floated around until it found its victims.Make a question multipliedabsorbed3Think of a method To _ that the second theory was correct.suspect45Collect results Some information was _ on a map.It seems that water was to _.Analyse results _ the source of the water to se
16、e if it is the cause of the illness.markedLook intoblame66-7Find supporting evidence Extra _ was found from two deaths that were _ Broad Street outbreak.Draw a conclusion _ water spread cholera.“King Cholera”was _.evidencelinked todefeatedPolluted2.Why was cholera called“King Cholera”in the text?A.B
17、ecause cholera caused some deaths.B.Because it got its name from Queen Victoria.C.Because cholera was the most deadly disease of its day.D.Because it was defeated with the help of the king.Careful reading3.Whats the main idea of the passage?A.John Snow was a well-known doctor in London.B.The cause o
18、f Cholera was polluted water.C.The source of all drinking water should be examined.D.How John Snow collected,analyzed data and found the cause of the disease and solved it.Careful reading Cholera is a 19th century disease.What disease do you think is similar to cholera today?Two diseases,which are s
19、imilar today,are SARS and AIDS because they are both serious,have an unknown cause and need public health care to solve them.Group Discussion John Snow was a very expert doctor in London.He thought about ordinary people_ cholera.There were two theories he became interested in.One is that cholera_ in
20、 the air,the other is that people _ this disease into their bodies with their meals.John Snow_ that the second theory was correct,and he determined to find out why.Filling the blanks with useful words and expressions in the text retellingexposed tomultipliedabsorbedsuspected First,he marked on a map
21、 which gave him a valuable clue that many of the deaths were near the_ in Broad street.It seemed that the water_.Next,John Snow _the source of the water and found that it came from the river _by the dirty water from London.After that,he found _ from two deaths.Then he was able to _with certainty that_ carried the virus.water pumpwas to blamelooked intoextra evidencepollutedannouncethe watervRead the text carefully.vRetell the passage with your own wordsvRemember the new words and phrasesHomework