【公开课】必修四Unit 4 Reading课件

Unit4AstronomyReadingUnit41WarmingUpWhataretheplanetsinoursolarsystem?水星Mercury金星地球火星木星土星天王星海王星VenusEarthMarsJupiterSaturnUranusNeptuneWarmingUpWhataretheplanets2Whatinterestsyouinastronomy?theMilkyWay银河Whatinterestsyouinastronom3star恒星star恒星4planet行星Plutoplanet行星Pluto5comet慧星comet慧星6shootingstar/meteor流星shootingstar/meteor流星7blackhole黑洞blackhole黑洞8Haveyoueveraskedyourmother,“Mom,wheredoIcomefrom”?2.Nearlyeverybodyhasthisorthatpuzzles:Howdohumanbeingscomeintobeing?Howdoestheearthcomeintobeing?Pre-readingHaveyoueveraskedyourmothe9ReadingCanyoupredictthemainideaofthistextbylookingatthetittleHowLifeBeganontheEarth?theoriginofearthReadingCanyoupredictthemai10Readthepassagecarefullyandanalyseitsstructure.Findoutthekeywordsoftheseparagraphs.Paragraph1:Paragraph2:Paragraph3:Paragraph4:Paragraph5:BigBangatmospherewaterplantsandanimalshumanbeingsthedevelopmentoftheearththedevelopmentoflifeReadthepassagecarefullyand11Stage1:Thedevelopmentoftheearth(1)AftertheBigBang,whatwastheearthlikeatfirst?

acloudofdust

asolidglobe4.5-3.8billionyearsEarth\(≧▽≦)/Stage1:Thedevelopmentofth12explodedwithfireandrock

producedwatervapourandgases(2)Whathappenednext?explodedwithfireandrockpr13(3)Thewatervapourandgasesformthe____________.atmosphere(3)Thewatervapourandgases14(4)Whatappearedastheearthcooleddown?water(4)Whatappearedastheearth15

Whyiswatersoimportantforthebeginningoflife?

Becausewaterallowedtheearthtodissolveharmfulgasesintooceansandseas.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.Whyiswatersoimportantfo16Stage2:Thedevelopmentoflifesmallplantsappearsinwater1.Whatlifedevelopedafterwaterappeared?Stage2:Thedevelopmentofli17Shellfishandallsortsoffish2.Whatlifedevelopedinwaternext?Shellfishandallsortsoffis18greenplantsbegantogrowonland

insectsappeared3.Whataboutthelifeonland?greenplantsbegantogrowon19amphibiansonlandandinthewaterforests4.Whatlifedevelopednextonland?amphibiansonlandandinthe20reptilesappeared

dinosaurdeveloped5.Whatlifedevelopedafterforestsappeared?reptilesappeareddinosaurd21mammalsonland6.Whatlifedevelopedafterdinosaurs?mammalsonland6.Whatlifedev22smallcleveranimalssuchashumanbeings7.Whatlifedevelopedaftermammals?smallcleveranimalssuchas231.Insectsandamphibiansappeared.3.Theearthbecameasolidball.5.Reptilesappeared.7.Theearthwasacloudofdust9.Shellfishandotherfishappeared.11.Cleveranimalswithhandsandfeetappeared2.Dinosaursappeared.

4.Smallplantsgrewonthewater.6.Plantsbegantogrowondryland.8.Waterappearedontheearth10.Theuniversebeganwitha“BigBand”.12.Mammalsappeared.831091151741262Canyouputtheorderofdevelopmentoflifeintoatimeline?1.Insectsandamphibiansappe24summaryAfterthe“bigbang”,theearthwasstilljustacloudof_______,it_______loudlywithfireandrock,whichwere_____toproducethe_________,watervapourandothergases.Then________begantoappearedontheearth.dustexplodedintimecarbonwatersummaryAfterthe“bigbang”,t25____________inwaterareconsideredtobetheearliestlivesontheearth.TheO2theysuppliedencouragedthelivesof_______________.Slowlygreenplantsgrewon

land,whichwerefollowedby__________

likeinsects&________.Whentheplantsgrewinto______,______appeared.Then_______developedbutdisappearedlater,whichmadetheriseofatotallydifferentanimal,______,possible,andfinally_____spreadallovertheworld.shell-fishandfishamphibiansforestsreptilesdinosaursmammalhumansThesmallplantslandanimals____________inwaterarec26Thankyou~Thankyou~27Unit4AstronomyReadingUnit428WarmingUpWhataretheplanetsinoursolarsystem?水星Mercury金星地球火星木星土星天王星海王星VenusEarthMarsJupiterSaturnUranusNeptuneWarmingUpWhataretheplanets29Whatinterestsyouinastronomy?theMilkyWay银河Whatinterestsyouinastronom30star恒星star恒星31planet行星Plutoplanet行星Pluto32comet慧星comet慧星33shootingstar/meteor流星shootingstar/meteor流星34blackhole黑洞blackhole黑洞35Haveyoueveraskedyourmother,“Mom,wheredoIcomefrom”?2.Nearlyeverybodyhasthisorthatpuzzles:Howdohumanbeingscomeintobeing?Howdoestheearthcomeintobeing?Pre-readingHaveyoueveraskedyourmothe36ReadingCanyoupredictthemainideaofthistextbylookingatthetittleHowLifeBeganontheEarth?theoriginofearthReadingCanyoupredictthemai37Readthepassagecarefullyandanalyseitsstructure.Findoutthekeywordsoftheseparagraphs.Paragraph1:Paragraph2:Paragraph3:Paragraph4:Paragraph5:BigBangatmospherewaterplantsandanimalshumanbeingsthedevelopmentoftheearththedevelopmentoflifeReadthepassagecarefullyand38Stage1:Thedevelopmentoftheearth(1)AftertheBigBang,whatwastheearthlikeatfirst?

acloudofdust

asolidglobe4.5-3.8billionyearsEarth\(≧▽≦)/Stage1:Thedevelopmentofth39explodedwithfireandrock

producedwatervapourandgases(2)Whathappenednext?explodedwithfireandrockpr40(3)Thewatervapourandgasesformthe____________.atmosphere(3)Thewatervapourandgases41(4)Whatappearedastheearthcooleddown?water(4)Whatappearedastheearth42

Whyiswatersoimportantforthebeginningoflife?

Becausewaterallowedtheearthtodissolveharmfulgasesintooceansandseas.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.Whyiswatersoimportantfo43Stage2:Thedevelopmentoflifesmallplantsappearsinwater1.Whatlifedevelopedafterwaterappeared?Stage2:Thedevelopmentofli44Shellfishandallsortsoffish2.Whatlifedevelopedinwaternext?Shellfishandallsortsoffis45greenplantsbegantogrowonland

insectsappeared3.Whataboutthelifeonland?greenplantsbegantogrowon46amphibiansonlandandinthewaterforests4.Whatlifedevelopednextonland?amphibiansonlandandinthe47reptilesappeared

dinosaurdeveloped5.Whatlifedevelopedafterforestsappeared?reptilesappeareddinosaurd48mammalsonland6.Whatlifedevelopedafterdinosaurs?mammalsonland6.Whatlifedev49smallcleveranimalssuchashumanbeings7.Whatlifedevelopedaftermammals?smallcleveranimalssuchas501.Insectsandamphibiansappeared.3.Theearthbecameasolidball.5.Reptilesappeared.7.Theearthwasacloudofdust9.Shellfishandotherfishappeared.11.Cleveranimalswithhandsandfeetappeared2.Dinosaursappeared.

4.Smallplantsgrewonthewater.6.Plantsbegantogrowondryland.8.Waterappearedontheearth10.Theuniversebeganwitha“BigBand”.12.Mammalsappeared.831091151741262Canyouputtheorderofdevelopmentoflifeintoatimeline?1.Insectsandamphibiansappe51summaryAfterthe“bigbang”,theearthwasstilljustacloudof_