人教版高中英语必修三unit4-reading课件

thescienceofthestarsUnit4Astronomy

thescienceofthestarsUnit1Astronomy?AreyouinterestedinStep1AquizonastronomyAstronomy?Areyouinterested23.Earthistheonlyplanetmovingaroundthesun.Part1:TrueorFalseTheearthmovesaroundthesun.TF2.Ittakestheearthonedaytomovearoundthesun.4.Thereisatmosphereonthemoon.5.Theearthistheonlyplanetinthesolarsystemwhichhaslivingcreatures.ayear8planetsnoFFT3.Earthistheonlyplanetmo3Mercury

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MercuryVenusEarthMarsJupiterSa4Doyouknowhowtheuniversebeganaccordingtochineseculture?

InChina,weallknowthatPangu

separatestheskyfromtheearth.Let’sbrainstormthefollowingquestionsDoyouknowhowtheuniverseb5ChineseLegends(传说)Panguseparatedtheskyfromtheearth.Hiswholebodythenturnedintoallkindsofthingsintheuniverse.盘古开天辟地ChineseLegends(传说)Pangusep62.Trytoputtherightorderofdevelopmentoflifeontheearth???Ifyouwanttoknowmore,pleaseturntoPage25①②③④⑥⑦⑤2.Trytoputtherightordero7Lookattitleandthepictures.Canyougetsomeinformationaboutwhatwewilllearnfromthetext?Bigbang???Theevolution(development)oflifeontheearth???Thetextmaytellusthe___________oftheearthandthe___________oflifeonit.

HowlifebeginontheearthPre-readingPre-readingLookattitleandthepictures8HowlifebeganontheEarthHowlifebeganontheEarth9FastreadingMatchthemainideawitheachparagraphy.Fastreading10Para.1Theformation(形成)ofthe

earth.Para.2Theimportanceofwater

forlife.Para.3Awidelyacceptedtheory

abouttheformationoftheuniverse.Para.4Thearrivalofhumans

andtheirimpactontheearth.Para.5Thedevelopmentofplantsandanimals

ontheearth.

Para.1Theformation11CarefulreadingTaskone(para1)WhatisthewidelyacceptedtheoryinPara1?Theuniversebeganwitha"BigBang"thatthrowmatters...bodies.CarefulreadingTaskone(par12acloudof_____BigBangasolid_______slowlycombinetheearth______downitexplodedloudlywith_____and_____theearth’s___________dustball/globefirerockatmospherecooledHowdidtheearthcomeintobeing(产生）?Tasktwo

(para2)acloudof_____BigBangasol13

Whyiswatersoimportantforthebeginningoflife?

？paragraph3dissolveharmfulgasesandacidsintotheoceansandseas.Becausewaterallowedtheearthto—————————Whyiswatersoimportantfor14

Whatlifedevelopedafterwaterappeared?Paragraph4

smallplantsgreenplants

forestearlyshellfishandallsortsoffishinsectsandamphibiansreptilesdinosaursmammalsWhatlifedevelopedafterwat15About2.6millionyearsagoNowHumansproducetoomuchcarbondioxide,makingtheearthtoohottolivein.Para5

Afterthecleveranimals(humans)becameimportantontheearth,whathappened?AnswerquestionAbout2.6millionyearsagoNow161234567Let’scheckwhetherweputtherightorderatfirst.Areyouright?①②③④⑤⑥⑦1234567Let’scheckwhetherwe17TaskthreePleasereadthetextagain,thenputtheorderofthesesentences.(exercise2,page27)□Insectsandamphibiansappeared□Theearthbecameasolidball□Reptilesappeared.□Theearthwasacloudofdust.□Shellfishandotherfishappeared.□Cleveranimalswithhandsandfeetappeared.TaskthreePleasereadthete18□Dinosaursappeared.□Smallplantsgrewonthewater.□Plantsbegantogrewontheearth.□Waterappearedontheearth.□Theuniversebeginwitha“bigbang”□Mammalsappeared.□Dinosaursappeared.19BigBang4.5-3.8billionmanymillionyearslater

2.6millionNow

⊕⊕⊕●●●●●●●●★Time

Events

BigBangdustsolidglobewaterappearssmallplantsshellfishandfishplantsgrowonthelandinsectsandamphibians

reptiles

dinosaurmammals

cleveranimalshumanslifeearth

BigBang4.5-3.8billionmanymi20SumupThetextmaytellusthe___________oftheearthandafter________appear,the___________oflifeoneafteranotheronit.

formation

water

developmentSumupThetextmaytellust21Inthelastparagraph,weknowhumansfaceseriouslyglobalwarmingproblem,whichisthreateningourexistence.Canyouwritesomethingtocallonustoprotectourenvironment?Discussion

Inthelastparagraph,weknow22Theearthweliveinisbecomingmoreandmoreterrible,sowemusttakemeasurestodealwithit

Firstly:Secondly:Thirdly:

Wehopetheenvironmentwillbecomemoreandmorebeautiful.Sample

Theearthweliveinisbe23Theearthweliveinisbecomingmoreandmoreterrible,sowemusttakemeasurestodealwithit

Firstly,thegovernmentshouldpasslawstopreventpeopleandfactoriesfrompollutingtheenvironment.Secondly,everyoneshouldrealizetheimportanceoftheproblemandtrytheirbesttoprotecttheenvironmentandfightagainstpollution.Besides,it’sagoodideastoplanttreestoimprovetheenvironment.

Wehopeourearthwillbecomemoreandmoreb