人教版必修三Unit-4-Reading优质课课件.ppt

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1、Unit4HOWLIFEBEGANONTHEEARTHNobodyknowswhatcausedtheBigBang.Butitwastheeventthatcreatedouruniverse.TheuniversebeganwithaBigBang.TheBigBangLeadin1.Doyouknowtheoriginoflifeonearth?2.Eachreligionorculturehasitsownideasabouthowlifebeganonearth.InChinese

2、culture…____________separates(分)theskyfromtheearth.Pangu盘古skyearthSaying1_____________madehumanbeings.Nüwa(女娲)Saying2Inwesterncountries:______________createdtheworldandalllivingthings.God(上帝)Saying3LifewasbroughttotheearthbyETfromouterspace.Saying4The

3、ancestorsofhumanbeingsaremonkeys.Saying5ReadingHOWLIFEBEGANONTHEEARTHPredictionLookatthepicture.Canyoupredictwhatourtextwilltalkabout?SkimmingTask2summarizethemainideaThetextmainlytellsustheformation(组成）of__________andthe_______________oflifeonit.thee

4、arthdevelopmentWhat’sthewritingstyleofthetext?A.Narration记叙文B.Explanation说明文C.Essay散文D.Argumentation议论文Task1ScanningReadthepassageonP25quickly,andmatchthemainideaofeachparagraph.Para.1Para.2Para.3Para.4Para.5AtheoryabouthowtheuniversewasformedTheforma

5、tion(形成)oftheearthTheimportanceofwaterforlifeThedevelopmentofplantsandanimalsThearrivalofhumansandtheireffectsontheearthScanningPart1:ThedevelopmentoftheearthPart2:Thedevelopmentoflife.CarefulreadingatomsaviolentsolidglobeBigBangatmosphereWateroceansa

6、ndseas1.Choosethewordstofillintheblankstoretellthedevelopmentoftheearthandwater.Part1(Para.1-3)atomsCombineintoExplodewithfireandrockdissolveharmfulgasesintoBigBangaviolentsolidglobeatmospherewateroceansandseasCooldownBigBangatomsaviolentsolidglobeatm

7、osphereWateroceansandseas2.Whywastheearthdifferentfromotherplanets?(Para.3)A.Itproducedalotofheat.B.Waterremained.C.Waterdisappeared.D.Itwastheoldestplanet.Sowaterisimportanttotheearth.Nowater,noearth.Part2(para4~5)ThedevelopmentoflifePutthedevelopmen

8、toflifeinorder.A.insectsandamphibiansappearB.reptilesappearC.shellfishandallsortsoffishappearD.dinosaursappearE.smallplantsgrowonthesurfaceofthewaterF.plantsbegintogrowonlandG.mammals(includinghumans)appearECFABDGPara.5Canyoufindonesentenceint