英语必修五-Unit-1-Great-Scientistsppt课件.ppt

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1、人教课标高二必修5Unit1Unit1GreatscientistsReading1.Togetsomeinformationaboutsomefamousscientists2.TounderstandthepassageJohnSnowdefeats“KingCholera”3.TosummarisethemainideaandretellthestagesforJohnSnow’sresearch4.ToknowhowtoprotectpeoplefrominfectiousdiseasesLearningobj

2、ectivesTherearesomegreatscientificachievementsthathavechangedtheworld.Canyounamesomeofthem?Whatdoyouknowaboutgreatscientists?WarmingUp1.Whodiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthemfloat?anancientGreekmathematician&physicistArchimedes(287-212BC)

3、Archimedes’principle阿基米德定律(浮力)Levers(杠杆)Hisgreatfindings:Givemeaplacetostand,andIshallmovetheworld.——ArchimedesIfyouputanobjectintowaterthewaterpushestheobjectup.Itrisesandpartlyfloats.Theforceofthewaterpushingitupisthesameastheweightoftheobject.2.Whowroteabookex

4、plaininghowanimalsandplantsdevelopedastheenvironmentchanged?TheOriginofSpeciesCharlesDarwin(1808-1882)BritishauthorItexplainshowplantsandanimalschangedovertimetofitinwithachangingenvironment.Heimprovedthefirststeampump(泵;抽水机)andturneditintoasteamenginefortakingwa

5、teroutofminesin1712.3.Whoinventedthefirststeamengine?ThomasNewcomen(1663-1729),British4.Whousedpeas豌豆toshowhowphysicalcharacteristicsarepassedfromparentstotheirchildren?developedideasonheredity(遗传学)andinherited(继承,承传)characteristicsGregorMendel孟德尔(1822-1884),Czec

6、h（捷克人）5.Whodiscoveredradium?ShewasthefirstwomantowintheNobelPrize,thefirstpersonandonlywomantowintwice.MarieCurie(1867-1934)PolishandFrenchThediscoveryofradiummeantthatshebegananewscientificareaofresearch.6.Whoinventedthewayofgivingelectricitytoeverybodyinlargeci

7、ties?ThomasEdison(1847-1931)AmericaninventorInventions:Phonograph留声机Lightbulb电灯泡Motionpicturecamera电影摄影机7.Whowasthepainterthatstudieddeadbodiestoimprovehispaintingofpeople?LeonardodaVinci(1452-1519),Italianartistmasterpieces8.Whoinventedalamptokeepminerssafeunder

8、ground?SirHumphryDavy(1778-1829),Britishthesafelampforminers9.Whoinventedtheearliestinstrumenttotellpeoplewhereearthquakeshappened?inventedthefirstseismograph地