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HowLifeBeganontheEarthPeriod1HowLifeBeganontheEarth宇宙1.Trytogetthemainideaandsomedetailedinformationandgrasptheskillsofreading.2.Trytounderstandtheoriginoflifeontheearth.Learningaims1.theoryn.学说,理论2.violentadj.猛烈的,激烈的3.atmospheren.大气层4.unlikeprep.不同,不像5.fundamentaladj.基本的,基础的6.harmfuladj.有害的7.multiplyv.乘,增加,繁殖

8.existvi.存在9.intime及时,终于10.layeggs下蛋11.inone’sturn轮到某人,接着12.prevent—from阻止某人做某事

ReviewingSomeideasabouthowlifebeganonearth?Panguseparatestheskyfromtheearth.Nvwamadehumans.BigBangInWesternculture

:Godcreatedtheworldandalllivingthingsinsixdays.1.Whatwillbetalkedaboutinthispassage?

Thispassageintroducesthe__________oflifeontheearth.development

PredictionTitle:HowLifeBeganontheEarth

PredictionTitle:HowLifeBeganontheEarth2.Thetextwillbea/an_______Narration(记叙文)Exposition(说明文)C.Essay

(散文)Findoutamainideaforeachparagraph1234Theformation(形成)oftheearth.Theimportanceofwaterforlife.Thearrivalofhumansandtheirimpactontheearth.Awidelyacceptedtheoryabouttheformationoftheuniverse.Thedevelopmentofplantsandanimalsontheearth.

Fastreading5Readeachparagraphcarefullyandtrytofinishfivetasks.2.Groupdiscussion.(小组讨论)3.Presentation.(展示)4.Analysing.(点评)CarefulReadingContents展示点评RequirementsTask1

1.Therestofthestudentsarerequiredtoreadthetextwhilethestudentsarewritingontheblackboard.2.listencarefullyandraisesomequestionsifyouhave.3.Correctyouranswers.

Task2Task3Task4(口头)Task5(口头)Showtime展示点评,精彩共享IamajudgeG3G2G1G4G2G1G2

CarefulreadingQ1:Howdidtheuniversebeginaccordingtoawidelyacceptedtheory?Q2:Whatdoes“bodies”meanhere?A.

PlanetsandstarsB.Personsoranimals’bodies

Task1:(Para1)Awidelyacceptedtheory

Theuniversebeganwitha”BigBang”.Afterthat,atomsbegantoformandcombinetocreatestarsandotherbodiesPara2theformationoftheearthAcloudofdustAsolidglobeexplodetoproduceatmospherewaterappearedTellwhetherthefollowingsentencesaretrueorfalse.()1.Waterontheearthdisappearedlater.()2.Waterwasnecessaryandimportanttothedevelopmentoflife.()3.Waterwashelpfulindissolvingtheharmfulgasesandacidsintotheoceansandseas.FTTTask3:(Para3)TheimportanceofwaterappearonthesurfaceofthewatersmallplantslandanimalsreptilesdinosaursmammalsgreenplantsgrowonlandPlantsgrewintoforests.developeddisappearanceofdinosaursTask4:(Para4)ThedevelopmentofplantsandanimalsfollowedTheygavebirthtoyoungbabyandproducedmilktofeedthem.OxygenencouragedthelaterdevelopmentshellfishandfishSomewereinsectsandothersareamphibians.cleveranimalswithhandsandfeetPara.5ThearrivalofcleveranimalsandtheirimpactThustheyhave,intheirturn,becomethemostimportantanimalsontheplanet.(translatethesentenceintoChinese)Thusintheirturn于是,轮到他们成为这个星球上最重要的动物。Summary

Afterthe“BigBang”,theearthwasjustacloudofdust.It

loudlywithfireandrock,whichwere_________toproducetheearth’s_________.Thensmallplantsgrew.They___________andfilledtheoceansandseaswithoxygen.Manymillionsofyearslater,thefirstgreenplantsbeganto________onland.Whentheplantsgrewintoforests,reptilesappearedforthefirsttime.Theyproducedyounggenerallyby_________eggs.Thedisappearanceofdinosaursmadepossiblethe______ofmammalsontheearth.Nowsmallcleveranimalsappearedand___________allovertheworld.Astimewentby,theycoveredtheearthandtheyareputtingtoomuchcarbondioxideintotheatmosphere,which________heatfrom_________theearthintospace.Whetherlifewillcontinueonearthformillionsofyearstocomewill_____________whetherthisproblemcanbesolved.atmosphereintimemultipliedgrowlayingspreadpreventsonescapingdependPost-readingriseexplodedPost-readingDiscussionFood/drinklivinghabitsdisastersproblemsBCDAWhatproblemshumansarefacingnow?(Chooseoneaspecttodiscuss)Environmentglobalwarmingairpollutionwaterpollution

----earthquakefloodfiretsunami----drinkingsmokingstayingup---Whetherlifewillcontinueontheearthdependsonhumanb

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