人教版英语高二必修五Unit-1-Great-scientistsWarming-up、Pre-reading、Reading、Comprehending课件

1、Unit 1Great scientistsWarming up and ReadingUnit 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. ArchimedesC. Thomas EdisonA. Ch

2、arles DarwinArchimedes , an ancient Greek mathematician.(1) Which scientist discovered(2) Who wrote a book explaining how animals and plants developed as the environment changed? Marie CurieC. Charles DarwinB. Gregor MendelCharles Darwin , the British author of The Origin of Species .(2) Who wrote a

3、 book explainin(3) Who invented the first steam engine? Thomas NewcomenC. Thomas EdisonB. ArchimedesThomas 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 char

4、acteristics are passed from parents to their children? Thomas EdisonC. ArchimedesB. Gregor MendelGregor 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 CurieB. NewtonA. Zhang HengMarie Curi

5、e , Polish 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 EdisonB. ArchimedesThomas Edison , an American inventor.(6) Who invented the way of gi(7) Who was the painter that studied

6、dead bodies to improve his painting of people? Gregor MendelC. Marie CurieB. 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. FaradayB. Thomas NewcomenSir Humphry Davy , British,discover

7、ed the medicinal 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 DarwinC. Watt B. Zhang HengZhang Heng , Chinese, invented the first seismograph.(9) Who invented the earliest (10) Who p

8、ut forward a theory about black holes? Stephen HawkingC. CopernicusB. ArchimedesStephen Hawking , a British scientist, has worked in astronomy and studied black holes in space.(10) Who put forward a theory John SnowDefeatKing CholeraReadingJohn SnowDefeatKing CholeraRDraw a conclusionFind a problemM

9、ake a questionThink of a methodCollect resultsAnalyse the resultsFind supporting evidenceAccording to the passage, please put the 7 stages in right order.Draw a conclusionThink of a methodCollect resultsMake a questionFind a problemAnalyse the resultsFind supporting evidenceScanningDraw a conclusion

10、Find a probleDraw a conclusionFind a problemMake a questionThink of a methodCollect resultsAnalyse the resultsFind supporting evidencePara. 1Para. 2Para. 3Para. 4Para. 5Para. 6Match themPara. 7Draw a conclusionFind a proble(1) What was the problem?The cholera was the deadly disease of its day. Neith

11、er its cause nor its cure was understood.Intensive reading(1) What was the problem?The c(2) Which theory to believe in? Idea 1Idea 2Cholera 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

12、 their meals.(2) Which theory to believe inA map of Broad StreetWhat method did he use?Broad StreetMany deaths happened here.No death happened here.The water from the pump was to blame.Public houseA map of Broad StreetWhat met(4) What happened to the pump water?The water was from the river which had

13、 been polluted by the dirty water from London.(4) What happened to the pump (5) What extra evidence did he 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 d

14、id heThe problemThe causeIdea 1:Idea 2:The methodScientific Report by John SnowNobody knew the cause of the serious disease of choleraA cloud of dangerous gas found its victimsPeople absorbed the disease with their mealsCollect information from the cholera outbreak to prove which theory was correctC

15、omprehending The problemIdea 1:Scientific RThe resultsIdea 1 or 2? Why?The conclusionHe found the cause of cholera was the polluted waterIdea 2. Because the information showed that the dirty water carried choleraHe defeated cholera by examining the water supply and dealing with the polluted waterHe

16、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 cholera _ out, he began to gather information. He _ on a map where all the dead people had lived and found that many peo

17、ple 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 polluted water be found. Finally, “King Cholera” was defeated.doctor19thcauseexposedbrokemarkedpumpsourceexamineddealingSummary:doctor19thcauseexposedWhat should we pay attention to in our daily life in order not to get infected with cholera? Heat the food left overnightCook raw food thoroughlyWash hands oftenKeep away from fliesChoose fresh sea foodKeep the kitchen cleanDispose ru