Unit4Astronomy:thescienceofthestarsWhatsubjectsarelearntinhighschool?ChineseMathematicEnglishPEPhysicChemistryBiology,etcwhichsubjectbelongstoscience?MathematicPhysicChemistryBiologyWhatdoyouknowaboutastronomy?Lead-inAstronomyAstronomyisthescientificstudyoftheuniverseandtheheavenbodies(suchasthesun,themoon,andstars),gas,anddustwithinit.astronomerastronomerWhatareinthepictures?1.Inoursolarsystemeightplanetscirclearoundthesun.Whatarethey?Canyounamethemwithyourpartners?Thenmatchthenameswiththeplanets?Lookatthepictureandworkinpairs.Thencheckyouranswerwithotherpairs.WarmingupMercury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-readingPre-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.WhileWhile-reading-readingPara.1Theformation(形成)oftheearth.Para.2Theimportanceofwaterforlife.Para.3Awidelyacceptedtheoryabouttheformationoftheuniverse.Para.4Thearrivalofhumansandtheirimpactontheearth.Para.5Thedevelopmentofplantsandanimalsontheearth.II.Readthetextandfillintheblanksinthefollowingform.TimeWhathappenedBigBang______begantoformandcombinetocreatestarsandotherbodies.AtomsBetween4.5and3.8billionyearsago●Dustsettledintoasolidand______globe.●Theearthexplodedtoproduceits___________.●Thecontinued________ofwaterallowedtheearthtodissolveharmfulgasesand_____intotheoceansandseas.violentatmospherepresenceacidsManymillionsofyearslater●Thefirstsmallplantsonthesurfaceofthewaterproduced_______.●Early_______andallsortsoffishappeared.●Greenplantsbegantogrowonland.●Insectsand___________appeared.oxygenshellfishamphibiansWorkinpairs.Puttheorderofdevelopmentoflifeintoatimelinefirstaccordingtoyourcommonsense,andthenaccordingtothereadingpassage.WhileWhile-reading-reading1073849615212111.Insectsandamphibiansappeared.3.Theearthbecameasolidball.5.Reptilesappeared.7.Theearthwasacloudofdust.9.Shellfishandotherfishappeared.11.Cleveranimalswithhandsandfeetappeared.2.Dinosaursappeared.4.Smallplantsgrewonthewater.6.Plantsbegantogrowondryland.8.Waterappearedontheearth.10.Theuniversebeganwitha"BigBang".12.Mammalsappeared.Readthetextcarefullyandthinkaboutwhatyouhavereadanddiscussthesequestionsinpairs.WhileWhile-reading-reading1.Whywastheearthdifferentfromtheotherplanets?Becausewaterremainedontheearth.2.Whydidtheplantsgrowbeforetheanimalscame?Becauseplantsprovidedoxygenforanimalstobreathe.3.Whyisitwrongtoshowfilmswithdinosaursandpeopletogether?Becausedinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth.4.Thereusedtobenineplanetsinthesolarsystem.Recentlyscientistshavedecidedthatoneofthemcannolongerbeconsideredaplanet.Doyouknowthenameofthatplanet?Doyouknowwhytheyremovedit?ThenameisPluto(冥王星).Scientistsnowthinkitistoosmalltobecalledaplanet.5.Whatproblemiscausedbyhumanbeings?Humanbeingscauseglobalwarming.1.Whichwords,phrases,structures,orsentencesaredifficultforyoutounderstand?Underlinethem,guessusingcontextandthenaskyourteacher.2.Readaloudafterthetape,payingattentiontopronunciation,intonationandrhythm.PostPost-reading-reading1.Readthepassageagainafterclass.2.Trytorememberthenewwordsandphrase.Thankyouverymuch.Goodbye!制作：海中东坡学校马德坚
