高中英语-Unit 4 Astronomy教学课件设计

Wordbanktheoryn.学说；理论BigBang宇宙大爆炸；创世大爆炸nitrogenn.氮vapourn.蒸气；水蒸气oxygenn.氧carbondioxide二氧化碳atmospheren.大气层；气氛dissolvevt.&vi.溶解；解散acidn.酸fundamentaladj.基本的；基础的shellfishn.水生有壳动物amphibiann.两栖动物reptilen.爬行动物；爬虫mammaln.哺乳动物dinosaurn.恐龙Wordbanktheoryn.学说；理论BigBang宇宙大爆炸；创世大爆炸nitrogenn.氮vapourn.蒸气；水蒸气oxygenn.氧carbondioxide二氧化碳atmospheren.大气层；气氛dissolvevt.&vi.溶解；解散acidn.酸fundamentaladj.基本的；基础的shellfishn.水生有壳动物amphibiann.两栖动物reptilen.爬行动物；爬虫mammaln.哺乳动物dinosaurn.恐龙Pre-readingTheoriginoflifeontheearthisaquestionthatinterestsastronomers.whatdoyouknowaboutit?Eachreligionandculturehasitsownideasabouthowlifebeganonearth.Whatdoyouknowaboutit?Doyoubelievetheytellyouthetruthaboutthebeginningoflife?ThebeginningofthelifePanguseparatedNvwacreatedGodcreatedtheskyhumanstheworld

盘古开天女娲造人上帝创世论ReadingHowLifeBeganontheEarthReadingReadingHowlifebeganontheearthskimmingReadthepassagequicklyandmatchthemainideawitheachparagraph.Para.1Theformation(形成)oftheearth.Para.2Theimportanceofwaterforlife.Para.3Awidelyaccepted

theoryabouttheformationoftheuniverse.Para.4Thearrivalofhumansandtheirimpactontheearth.Para.5Thedevelopmentofplantsandanimalsontheearth.一项被广泛接受的学说MatchthemainideawitheachparagraphCarefulreadingReadparagraph2andparagraph3carefullyandanswerthefollowingquestions.Carbondioxide,nitrogen,watervapour,andothergases2.whatwasfundamentaltothedevelopmentoflife?Water1.Whatwastheoriginalearth’satmospheremadeupof?3.Whywastheearthdifferentfromtheotherplanets?

Becausewaterremainedontheearth.1.BigBang2.acloudof____3.a__________4.explodedwith___________5.producethe_____________HowtheearthcameintobeingFillintheblanksdustsolidglobe

fireandrockatmosphere6.cooleddown7.______appearedwater8.dissolvedharmful________________gasesandacidBigBangAsolidglobeAtmosphere

TheearthWaterThedevelopmentoftheearth

Whathappenedontheearthlateraccordingtothekeywords?Para4and5FirstLaterFinallyAfterthatNextplantsanimalsfirstnextlaterfinally

plantanimalwaterlandsmallplantsgreenplantsforestsshellfishfishamphibiansinsectsreptilesmammalshumanbeingslowhighThedevelopmentoflifeThestructureofthepassage

Howlifebeganontheearth

awidelyacceptedtheory(Para1)thedevelopmentoftheearth(Para2,3)thedevelopmentofthelifeandplants(Para4)humansandtheirimpact(Para5)Afterthe

,theearthwasjust

.Slowly,itbegantocombineinto

movingaroundthesun.Afteritexplodedloudly,theexplosionproduced

,

_________________________________andothergases.“BigBang”acloudofdustcarbon,nitrogenwatervapour

asolidglobeRetell

Astheearthcooleddown,_____begantoappearonitssurface.Becauseofwaterandotherusefulgases,thefirst

andlater___________________________appeared.Next,

begantogrow

,whichledtotheappearanceof____________________.watersmallplantsgrewshellfishandallsortsoffishinsectsandamphibiansgreenplantsonland

Later,Whentheplantsgrewintoforests,

.Afterthat,

.Whentheydisappeared,

becamemoreimportant.Finally,________________havebecamethemostimportantanimalsontheplanet.reptilesappeareddinosaursdevelopedmammalshumanbeings

Whichsentenceinthepassagesharesthesamemeaningwiththefollowingone?Whatmattersmoreisthatwiththeearthcoolingdownwatercameintoexistenceonthesurfaceoftheearth.whatisevenmoreimportantisthat

astheearthcooleddown,waterbegantoappearonitssurface.what...isthat...所......是......

许多科学家所相信的是宇宙开始于一次大爆炸。Whatmanyscientistsbelieveisthattheuniverbeganwitha“BigBang”.TranslatethesentenceintoChinese.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.It'sobviousthat...显然......befundamentalto...是......的基础水将对生命发展有关键作用在当时并不明显。prepThisproducedachainreaction,which

madeitpossibleforlifetodevelop.makeit+adjforsbtodo互联网让我们与他人的交流更加容易。TheInternetmakesiteasierforustocommunicatewithothers.GroupworkIstheearthgettingwarmereachyear?Ifso,whateffectswillthishave?Supposeyouweretheearth,whatwouldyouadvisehumanstodo?Writealettertothehumanbeings.what...isthat...所......是......It'sobviousthat...显然......befundamentalto...是......的基