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1、Unit 1,Great scientists,characteristicradium painter scientificconclude conclusion analyse,n.特征;特性n.镭n.画家;油漆匠adj.科学的vt.&vi.结束；推断出n.结论；结束vt.分析,Words preview,put forward draw a conclusion,提出得出结论,There are some great scientific achievements that have changed the world.Can you name some of them?Match th
2、e achievements with the scientists below.,Galileo GalileiBenjamin FranklinNewtonAlexander Bell Albert Einstein,the theory of falling objects,lightning,the law of gravity,telephone,Scientists Achievements,the theory of relativity,What do you know about great scientists?Try this quiz and find out who
3、knows the most.,1.Which scientist discovered that objects in water are lifted up by a force that helps them float?,B.Archimedes,C.Thomas Edison,A.Charles Darwin,Archimedes(287-212 BC),an ancient Greek mathematician&physicist,2.Who wrote a book explaining how animals and plants developed as the envir
4、onment changed?,Marie Curie,C.Charles Darwin,B.Gregor Mendel,Charles Darwin(1808-1882),British author of The Origin of Species,3.Who invented the first steam engine?,Thomas Newcomen,C.Thomas Edison,B.Archimedes,Thomas Newcomen(1663-1729),British,improved the first steam pump and turnedit into a stea
5、m engine for taking water out of mines in 1712,4.Who used peas to show how physical characteristics are passed from parents to their children?,Thomas Edison,C.Archimedes,B.Gregor Mendel,Gregor Mendel(1822-1884),Czech,developed ideas on heredity(遗传学)and inherited(继承,承传)characteristics,5.Who discovere
6、d radium?,C.Marie Curie,B.Newton,A.Zhang Heng,Marie Curie(1867-1934),Polish and French,won two Nobel Prizes,6.Who invented the way of giving electricity to everybody in large cities?,Stephen Hawking,C.Thomas Edison,B.Archimedes,Thomas Edison(1847-1931),American inventor,Thomas Edison,Inventions of T
7、homas Edison,Phonograph 留声机,Light bulb,Motion Pictures,7.Who was the painter that studied dead bodies to improve his painting of people?,Gregor Mendel,C.Marie Curie,B.Leonardo da Vinci,Leonardo da Vinci(1452-1519),Italian artist,Leonardo da Vincis paintings,8.Who invented a lamp to keep miners safe
8、underground?,Sir Humphry Davy,C.Faraday,B.Thomas Newcomen,Sir Humphry Davy(1778-1829),British,discovered the medicinal value of nitrous oxide(一氧化二氮)as anaesthetic(麻醉剂),9.Who invented the earliest instrument to tell people where earthquakes happened?,Charles Darwin,C.Watt,B.Zhang Heng,Zhang Heng(78-1
9、39),Chinese,invented the first seismograph,seismograph地动仪,10.Who put forward a theory about black holes?,Stephen Hawking,C.Copernicus,B.Archimedes,Stephen Hawking(1942-),British scientist,worked in astronomy and studied black holes in space,What makes ascientist successful?,strong will，imagination，c
10、reativity，patience，persistence，carefulness，curiosity,Do you know how to prove a new idea in scientific research?Discuss in small groups the stages in setting out a new scientific idea.What order would you put them in？,Draw a conclusion Think of a method Collect results Make a question Find a problem
11、 Analyse the resultsFind supporting evidence,Infectious diseases can be spread to other people.They have an unknown causeand need public health care to solve them.People may be exposed to infectious diseases,so may animals.Bird flu,AIDS and SARS are infectious diseases.Infectious diseases are diffic
12、ult to cure.,What do you know about infectious diseases?,What do you know about cholera?,What other diseases do you know are similar to SARS today?,cholera,What is Cholera?,Cholera is the illness caused by a bacterium（细菌）called Vibrio cholerae.It infects peoples intestines(肠),causing diarrhea(腹泻),vomiting and leg cramps.The most common cause of cholera is by someone eating food or drinking water that has been infected with the bacteria.,
