Astronomy:thescienceofthestarsUnit4WordsandexpressionsInoursolarsystemeightplanetscirclearoundthesun.TheSolarSystemWhatarethenamesoftheeightplanetsthatcircleoursun?海王星Saturn水星Uranus金星Venus地球Earth火星Mars木星Mercury土星Jupiter天王星NeptuneWhatinterestsyouinastronomy?Doyouknowanyquestionsthatastronomersareinterestedin?WarmingupHowtheuniversebegan?Howlifebegan?Istherelifeonotherplanets?Arethereotherlifeformsintheuniverse?…ThebeginningoftheuniverseEachreligionandculturehasitsownideasabouthowlifebeganonearth.Whatdoyouknow?LegendV.SSciencebBrainstormingPanguseparatestheskyfromtheearth.NuwamakeshumanbeingsAccordingtoBible(圣经),Godcreatedtheworldandthefirstman,Adam(亚当)andthefirstwoman,Eve(夏娃).Godcreatedtheworldinsevendays.ReligiousBeliefsScience:TheBigBang（大爆炸）TheuniversebeganwithTheuniversebeganwitha“BigBanga“BigBang”ReadingHowLifeBeganontheEarthSkimmingReadingstrategy(策略):Gothroughthepassagequicklytogetthemainideaofeachparagraph.Task1:Skimthepassageandmatchthemainideawitheachparagraph.•Para.1Theformation(形成)oftheearth.•Para.2Theimportanceofwaterforlife.•Para.3Awidelyacceptedtheoryabouttheformationoftheuniverse.•Para.4Thearrivalofhumansandtheirimpactontheearth.•Para.5Thedevelopmentofplantsandanimalsontheearth.ChoosethebestChoosethebestansweranswer1.Whatmadeitpossibleforlifetobeginanddevelopontheearthaccordingtothepassage?A.HarmfulgasesB.WaterC.CarbondioxideD.OxygenTask2:2.WhichofthefollowingisNOTtrueaboutthedinosaurs?A.Theyproducedtheiryoungbylayingeggs.B.Someofthemwereveryhuge.C.Theyproducedtheiryoungformwithintheirbodies.D.Theyoncelivedontheearthformillionsofyears.3.Theword“multiply”(Line4,the4thparagraph)means_________.A.乘以B.繁殖C.减少D.分解4.Whatisthemainproblemtobesolvedforlifetocontinueontheearth?A.FoodB.WaterC.AIDSD.Globalwarming5.Whoknowshowlifebeganontheearthexactly?A.Scientists.B.Astronomers.C.Noone.D.Aliens(外星人).6.Whatdoes“smallcleveranimals”referto?A.Insects.B.Reptiles.C.Dinosaurs.D.Humans.7.Theearthwasdifferentfromtheotherplanetsinthat__________.A.acloudofdustwasaroundtheearthB.comfortableclimateremainedontheearthC.waterremainedontheearthD.carbonremainedontheearthScanningPuttheorderofdevelopmentoflifeintoatimeline.Scanning:Puttheorderofdevelopmentoflifeintoatimeline.1.Insectsandamphibiansappeared.3.Theearthbecameasolidball.5.Reptilesappeared.7.Theearthwasacloudofdust.9.Shellfishandotherfishappeared.11.Cleveranimalswithhandsandfeetappeared.2.Dinosaursappeared.4.Smallplantsgrewonthewater.6.Plantsbegantogrowondryland.8.Waterappearedontheearth.10.Theuniversebeganwitha“BigBang”.12.Mammalsappeared.107849615212311Closereading1.Whyisitwronginfilmsandstoriestoshowdinosaursandpeopletogether?Becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth.2.Thereusedtobenineplanetsinthesolarsystem.Recentlyscientistshavedecidedthatoneofthemcannolongerbeconsideredaplanet.Doyouknowthenameofthatplanet?Doyouknowwhytheyremovedit?Pluto.Scientistsnowthinkitistoosmalltobecalledaplanet.3:Whatproblemarehumanscausing?puttingcarbondioxideintotheatmospheretheearthmaybecometoo.Theresultisthat…hotglobalwarming---greenhouseeffect.ItcausedgreenhouseeffectandglobalwarmingiceintheNorthPolemeltssandstormPostreading:task1:summaryTextRetellingTheexplosionoftheearthproduced___________,whichturnedintowaterwhentheearthcooleddown.Waterallowedtheearthto_________harmfulgasesintotheoceansandseas.Thatmadeitpossiblefor_____tobegintodevelop.Thearrivalofsmall_____encouragedthedevelopmentofearly_______andallsortsoffish.Manymillionsofyearslaterthefirstgreenplantsbegantoappearonland.watervapourdissolvelifeplantsshellfishLaterlandanimalsappeared.Somewere_______.Others,called_________,wereabletoliveonlandaswellasinthesea.Whentheplantsgrewintoforests,__________appearedforthefirsttime.Then________developed,whichbecamethemostimportantanimalsontheearthformillionsofyears.Aftertheydisappeared,________becamemoreimportant.TextRetellinginsectsamphibiansreptilesdinosaursmammalsTheywerethelastgroupofanimalsandtheyweredifferentbecausethey______theiryoungfromwithintheirbodies.Smallcleveranimals,withhandsandfeet,________and_______allovertheearth.Astimewentby,theycoveredtheearthandhavebecomethemostimportantanimalsontheplanet.TextRetellingproducedappearedspreadAsastudent,whatlittlethingscanwedofortheearth?Task2:DiscussionWehaveonlyoneearth!Weshouldtakecareoftheearth!ks5u精品课件Homework1.Searchforinformationofthedevelopmentoflifeandfindmoresolutionstoglobalwarming.2.Finishtheexercisesonpage28.
