最新课件(刘述民).ppt

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1、ReadingHowlifebeganontheearthReading4.5-3.8billionyearsagomanymillionsofyearslater250millionyearsago65millionyearsagoSolongagoHowLifeBeganontheEarthPredictthemainideaandstructurefromthetitleandpicture（浏览标题和图片，预测大意和结构）1.Whatisthepassagemainlyabout?A.ThebirthoftheearthB.Whydinosaursdiedout.C.Thea

2、ppearanceanddevelopmentoflifeontheearth.D.Thefactthathumanbeingscausedglobalwarming.2.Howisthepassagedevelopedaccordingtothepictureonpage26?A.inspaceorderB.intimeorderC.bygivingexamplesD.bycomparingPredictthemainideaandstructurefromthetitleandpicture（浏览标题和图片，预测大意和结构）1.Whatisthepassagemainlyabou

3、t?A.ThebirthoftheearthB.Whydinosaursdiedout.C.Theappearanceanddevelopmentoflifeontheearth.D.Thefactthathumanbeingscausedglobalwarming.2.Howisthepassagedevelopedaccordingtothepictureonpage26?A.inspaceorderB.intimeorderC.bygivingexamplesD.bycomparing√Paragraph1:Paragraph4:Paragraph5:(D)Theorigino

4、ftheuniverse(E)Theformationoftheearth(A)Theimportanceofwaterforlife(B)Thedevelopmentofplantsandanimalsontheearth(C)ThearrivalofhumansandtheirinflunceontheearthParagraph2:Paragraph3:Task1:Readthetextquicklyandfindoutthemainideaforeachparagraph.Checkyouranswersingroups.Fast-reading（快读文本，获取大意）1073

5、849615212111.Insectsandamphibiansappeared.3.Theearthbecameasolidball.5.Reptilesappeared.7.Theearthwasacloudofdust.9.Shellfishandotherfishappeared.11.Cleveranimalswithhandsandfeetappeared.2.Dinosaursappeared.4.Smallplantsgrewonthewater.6.Plantsbegantogrowondryland.8.Waterappearedontheearth.10.Th

6、euniversebeganwitha"BigBang".12.Mammalsappeared.2.Puttheorderofdevelopmentoflifeintoatimelineaccordingtothereadingpassage.Task1:Guessthemeaningaccordingtothecontext.(根据上下文猜测词义）①.Whatdoestheunderlinedword“it”inparagraph3referto?WaterhadalsoappearedonotherplanetslikeMarsbutunliketheearth,ithaddis

7、appearedlater.②.Whichsentenceinparagraph4istheclosestinmeaningtothefollowingone?Itisstillunknownwhythedinosaursdisappearedsuddenly.③.Whatdoestheunderlinedword“amphibians”inparagraph4referto?Theywerefollowedbylandanimals.Somewerein