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WELCOMETOMYENGLISHWORLD!整理课件Step1Leadin
Lookattwopictures,trytogiveasmuchinformationaspossible.整理课件整理课件整理课件Unit4
Astronomy:the
scienceofthestars整理课件Step2Warmingup
Doyouknowhowmanyplanetscirclearoundthesuninoursolarsystem?Whatarethey?Canyoumatchthenameswiththeplanets?整理课件JupiterUranusNeptuneSaturnMercuryMarsEarthVenus水星
金星地球火星木星土星天王星海王星整理课件Step3AquizWhat’stheendoftheworld?It’s“D”.What’sthebeginningoftheworld?It’s“W”.整理课件
Step4Pre-reading
Eachreligionandculturehasitsownideasabouthowlifebeganonearth.Whatdoyouknow?
InChina,weallknowthatPanguseparatestheskyfromtheearth.
TheGoddessNvwamendedtheheavenandcreatedhumanbeings.
Inwesternculture,Godcreatedtheworldinsixdays.整理课件Panguseparatestheskyfromtheearth.整理课件Nvwamakeshumanbeings.整理课件Godcreatedman.上帝造人整理课件Whatisthepassageabout?
Step5ReadingHowlifebeganontheearth.整理课件
While-readingListentothetapeofthereadingpassageandmatchthemainideaforeachparagraph.整理课件MainideaofeachparagraphTheimportanceofwaterforlifeThedevelopmentofplantsandanimalsontheearthTheformationoftheearthd.Awidelyacceptedtheoryabouttheformationoftheuniverse
dcab
e.
ThearrivalofhumansandtheirimpactontheearthParagraph5:Paragraph1:Paragraph2:Paragraph3:Paragraph4:e整理课件While-readingWorkinpairs.Puttheorderofdevelopment
oflifeintoatimelineaccordingtothereadingpassage.
整理课件Puttheorderofdevelopmentoflifeintoatimeline.Insectsandamphibiansappeared.Theearthbecameasolidball.Reptilesappeared.Theearthwasacloudofdust.ShellfishandotherfishappearedDinosaursappeared.Smallplantsgrewonthewater.Plantsbegantogrowondryland.Waterappearedontheearth.Mammals(includinghumans)appeared.DBIGEHACFJ整理课件
While-readingThinkaboutwhatyouhavereadandmakechoices.整理课件Whywastheearthdifferentfromotherplanets?AItproducedalotofheat.B.Thewaterremained.CWaterdisappeared.D.Itwastheoldestplanet.Whywaslifeabletodevelopontheearthbutnotonotherplanets?ATheearthhadasolidshape.B.Theearthdidnothaveharmfulgasesinitsatmosphere.CThewaterstayedontheearthbutnotonotherplanets.D.Theearthwasnottoohotandnottoocold.ks5u精品课件整理课件Whydidtheplantsgrowbeforeanimalscame?AAnimalsneededplantstoprotectthemfromthesun.BPlantsprovidedoxygenforanimalstobreathe.CAnimalscouldhidefromhuntersinforest.DItwaseasierforplantstogrow.Whatproblemiscausedbyhumanbeings?ATheyexisteverywhereontheearth.BTheycauseglobalwarming.CTheyfindnewmethodsofgrowingcrops.DTheyenjoyhuntingandfishing.ks5u精品课件整理课件
Step6Lookingandthinking
Lookatthefollowingpicturesandtrytounderstandmoreofthereadingpassage.整理课件AcloudofdustAsolidglobeExplodeatmospherewater整理课件CellsseparatePlantsinthe waterEarlyshellfishandfishPlantson landoxygen整理课件InsectsandamphibiansReptilesDinosaursMammals整理课件Manhadevolvedfromapes.整理课件Thedevelopmentoflife整理课件Asastudent,whatlittlethingscanwedofortheearth?Step7Discussiontopreventtheearthfromgettinghotterandhottertoslowdowntheproblemgettingworse……整理课件Wehaveonlyoneearth!Weshouldtakecareoftheearth!ks5u精品课件整理课件Whetherlifewillcontinueontheearthdependsonhumanbeings.Onlyifwecarewillwehelp,onlyifwehelpshallallbesaved!整理课件Step8Homework
1.Readaloudthereadingpassageandunderlinetheusefulphrasesandsentencepatterns.2.FinishoffEx1andEx2onP.28.整理课件goodbye整理课件Step5SummingupHowlifebeganontheearth1.smallplantsinwater2.shellfish
andallsortsoffish3.greenplantsonland4.Insects(onland)5.
amphibians(onlandandinwater)
6.forests7.Reptiles(onland)8.Dinosaurs(onland)9.Mammals(onland)
10.smallcleveranimalswithhandsandfeet11.
humans
整理课件Whatsubjectsdoyoulearnatschool?ChineseEnglishmathematicsphysicshistorygeographyphysicsbiologychemistrybrainstorminggeophysicsbiochemistry整理课件Task3:Carefulreading1.Whatwasthereontheearthbeforelifecouldbegin?
Watervapour,carbondioxide,oxygen,nitrogenandothergases.2.Whydoscientiststhinktherehasneverbeenlifeonthemoon?Becausethereisnowateronthemoon.3.Whydidanimalsfirstappearintheseas?
Becausewaterallowedtheearthtodissolveharmfulgasesintotheoceansandseas.整理课件
4.Whydidgreenplantshelplifetodevelop?
Becausegreenplantscantakecarbondioxidefromtheatmosphereandfilltheairwithoxygen.5.Whyweremammalsdifferentfromotheranimals?
Theyweredifferentbecausetheyproducedtheiryoungfromwithintheirbodies.6.Howdidwatercomeintobeingontheearth?
Theexplosionoftheearthproducedwatervapor,whichturnedintowaterwhentheearthcooleddown.整理课件Water
Air
Lifeistheheadspringoflife.?HowLifeBeganontheEarth
Water整理课件________madeitpossibleforlifetobegintodevelop.Water整理课件Plantsencouragedthedevelopmentof_____________________________.earlyshellfi
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