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1、Unit 1,Great scientistsWarming up and Reading,Unit 1Great,What do you know about great scientists?Try this quiz and find out who knows the most.,What do you know about,(1)Which scientist discovered that objects in water are lifted up by a force that helps them float?,B.Archimedes,C.Thomas Edison,A.C
2、harles Darwin,Archimedes,an ancient Greek mathematician.,(1)Which scientist discovered,(2)Who wrote a book explaining how animals and plants developed as the environment changed?,Marie Curie,C.Charles Darwin,B.Gregor Mendel,Charles Darwin,the British author of The Origin of Species.,(2)Who wrote a b
3、ook explainin,(3)Who invented the first steam engine?,Thomas Newcomen,C.Thomas Edison,B.Archimedes,Thomas Newcomen,British,improved the first steam pump and turnedit into a steam engine for taking water out of mines in 1712.,(3)Who invented the first ste,(4)Who used peas to show how physical charact
4、eristics are passed from parents to their children?,Thomas Edison,C.Archimedes,B.Gregor Mendel,Gregor Mendel,Czech,grew pea plants and developed ideas on heredity and inherited characteristics.,(4)Who used peas to show how,(5)Who discovered radium?,C.Marie Curie,B.Newton,A.Zhang Heng,Marie Curie,Pol
5、ish and French,won two Nobel Prizes.,(5)Who discovered radium?C.M,(6)Who invented the way of giving electricity to everybody in large cities?,Stephen Hawking,C.Thomas Edison,B.Archimedes,Thomas Edison,an American inventor.,(6)Who invented the way of gi,(7)Who was the painter that studied dead bodies
6、 to improve his painting of people?,Gregor Mendel,C.Marie Curie,B.Leonardo da Vinci,Leonardo da Vinci,an Italian artist.,(7)Who was the painter that s,(8)Who invented a lamp to keep miners safe underground?,Sir Humphry Davy,C.Faraday,B.Thomas Newcomen,Sir Humphry Davy,British,discovered the medicina
7、l value of nitrous oxide as an anaesthetic.,(8)Who invented a lamp to kee,(9)Who invented the earliest instrument to tell people where earthquakes happened?,Charles Darwin,C.Watt,B.Zhang Heng,Zhang Heng,Chinese,invented the first seismograph.,(9)Who invented the earliest,(10)Who put forward a theory
8、 about black holes?,Stephen Hawking,C.Copernicus,B.Archimedes,Stephen Hawking,a British scientist,has worked in astronomy and studied black holes in space.,(10)Who put forward a theory,John Snow,Defeat,King Cholera,Reading,John SnowDefeatKing CholeraR,According to the passage,please put the 7 stages
9、 in right order.,Scanning,Draw a conclusionFind a proble,Match them,Para.7,Draw a conclusionFind a proble,(1)What was the problem?,The cholera was the deadly disease of its day.Neither its cause nor its cure was understood.,Intensive reading,(1)What was the problem?The c,(2)Which theory to believe i
10、n?,Idea 1,Idea 2,Cholera multiplied in the air without reason.A cloud of dangerous gas would float around until it found its victims.,People absorbed this disease into their bodies with their meals.,(2)Which theory to believe in,A map of Broad Street,What method did he use?,Broad Street,Many deaths
11、happened here.,No death happened here.,The water from the pump was to blame.,Public house,A map of Broad StreetWhat met,(4)What happened to the pump water?,The water was from the river which had been polluted by the dirty water from London.,(4)What happened to the pump,(5)What extra evidence did he
12、find?,two other deaths,A woman and her daughter who lived far away but drank the water also died.,Draw a conclusion with certainty.,The polluted water carried the disease.,(5)What extra evidence did he,Scientific Report by John Snow,Nobody knew the cause of the serious disease of cholera,A cloud of
13、dangerous gas found its victims,People absorbed the disease with their meals,Collect information from the cholera outbreak to prove which theory was correct,Comprehending,The problemIdea 1:Scientific R,He found the cause of cholera was the polluted water,Idea 2.Because the information showed that th
14、e dirty water carried cholera,He defeated cholera by examining the water supply and dealing with the polluted water,He found the cause of cholera,Summary:John Snow was a well-known _ in London in the _ century.He wanted to find the _ of cholera in order to help people _ to cholera.In 1854 when a cho
15、lera _ out,he began to gather information.He _ on a map where all the dead people had lived and found that many people who had drunk the dirty water from the _ died.So he decided that the polluted water carried cholera.He suggested that the _ of all the water supplies be _ and new methods of _with p
16、olluted water be found.Finally,“King Cholera”was defeated.,doctor,19th,cause,exposed,broke,marked,pump,source,examined,dealing,Summary:doctor19thcauseexposed,What should we pay attention to in our daily life in order not to get infected with cholera?,Heat the food left overnight,Cook raw food thorou
17、ghly,Wash hands often,Keep away from flies,Choose fresh sea food,Keep the kitchen clean,Dispose rubbish properly,Drink boiled water,Discussion,What should we pay attention t,According to the discussion,design a poster with your group,introducing Cholera to people,and inform people of the ways to keep away from getting infected with cholera.,Team work,According to the discussion,d,
