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1、Unit4Astronomy:thescienceofthestarsWhatsubjectsarelearntinhighschool?ChineseMathematicEnglishPEPhysicChemistryBiology,etcwhichsubjectbelongstoscience?MathematicPhysicChemistryBiologyWhatdoyouknowaboutastronomy?Lead-inAstronomyisthescientificstudyoftheuniverseandtheheavenbodie
2、s(suchasthesun,themoon,andstars),gas,anddustwithinit.astronomerWhatareinthepictures?1.Inoursolarsystemeightplanetscirclearoundthesun.Whatarethey?Canyounamethemwithyourpartners?Thenmatchthenameswiththeplanets?Lookatthepictureandworkinpairs.Thencheckyouranswerwithotherpairs.War
3、mingupMercury水星Venus金星Earth地球Mars火星Jupiter木星Saturn土星Uranus天王星Neptune海王星Pre-readingThinking1)Whatdoyouknowabouttheoriginoflifeonearth?2)Doyouknowhowlifebeganonearthisexplainedindifferentreligionsandcultures?Panguseparatestheskyfromtheearth中国神话传说中有盘古开天地的说法。巨人盘古用一把利斧劈开混沌,将天地分开。死
4、后,他的气息化成风和云,声音变成轰轰的雷声,左眼化为太阳,右眼化为月亮,手足与四肢变成大地的四极与五方的名山,血液化成江河,筋脉铺成道路,肌肉形成田地,须发成为星星,牙齿和骨骼化为金属、珍珠、玉石,汗水成为滋润万物生长的甘霖和雨露。OtherlegendsaboutthebeginningofuniversewascreatebyGodReadthetextquicklyandwritedownthemainideaforeachparagraph.Task1:SkimmingWhile-readingPara.1Theformation(形成)
5、oftheearth.Para.2Theimportanceofwaterforlife.Para.3Awidelyacceptedtheoryabouttheformationoftheuniverse.Para.4Thearrivalofhumansandtheirimpactontheearth.Para.5Thedevelopmentofplantsandanimalsontheearth.II.Readthetextandfillintheblanksinthefollowingform.TimeWhathappenedBigBang_
6、_____begantoformandcombinetocreatestarsandotherbodies.AtomsBetween4.5and3.8billionyearsago●Dustsettledintoasolidand______globe.●Theearthexplodedtoproduceits___________.●Thecontinued________ofwaterallowedtheearthtodissolveharmfulgasesand_____intotheoceansandseas.violentatmosph
7、erepresenceacidsManymillionsofyearslater●Thefirstsmallplantsonthesurfaceofthewaterproduced_______.●Early_______andallsortsoffishappeared.●Greenplantsbegantogrowonland.●Insectsand___________appeared.oxygenshellfishamphibiansWorkinpairs.Puttheorderofdevelopment oflifeintoatimel
8、inefirstaccordingtoyourcommonsense,andthenaccordingtothereadingpassa
