必修三unit4reading导学案

Unit4Astronomy:thescienceofthestaresReading导学案主编人：应羽婧1/2【学习目标】：1.Tolearnsomeusefulwordsandexpressionsinthetext.2.Tolearnthedevelopmentoflife.3.Toimprovesomereadingskills,andlearntheorganizationofthetext.4.TrainSs’interestsinscienceandstimulatetheirloveforastronomy.【教学重点】：1.GettheSstoknowthedevelopmentoflife.2.Toimprovethestudents’readingability.【预习案】一、Warming-up:discusswithyourpartner,andanswerthefollowingquestions.1.Howmanyplanetsarethereinoursolarsystem?Whatarethey?____________________________________________________________________________________2.Whyistheearththeonlyoneofalltheplantsonwhichlifecansurvive?____________________________________________________________________________________3.Doyouknowwherearewecomefrom?Whoareourancestors?____________________________________________________________________________________二、Skimming1.Lookatthetitleofthispassage,canyoupredictwhatthepassagewillbeabout?2.Writedownthetopicsentenceofeachparagraph.Paragraph1:__________________________________________________________________________Paragraph2:__________________________________________________________________________Paragraph3:__________________________________________________________________________Paragraph4:__________________________________________________________________________Paragraph5:__________________________________________________________________________3.Thetextcanbedividedintothreeparts,fillintheblanketsbelow.Part1(para__):_______madeitpossibleforlifebegintodevelop.Part2(para__-para__):The________oflife.Part3(para__):Thedevelopmentof______.【探究案】一、Detailedreading1.Readpara1-2,competethefollowingchart.2.Readpart2andputtheorderofdevelopmentoflifeintoatimelineaccordingtothetext.1.Insectsandamphibiansappeared.2.Dinosaursappeared.3.Theearthbecameasolidball.4.Smallplantsgrewondryland.5.Reptilesappeared.6.Plantsbegantogrowondryland.7.Theearthwasacloudofdust.8.Waterappearedontheearth.9.Shellfishandotherfishappeared.10.Theuniversebeganwitha“BigBang”._______withfireandrockSlowlycombineBigBangAcloudofdust_______dustAviolent______ballProduce______and______Maketheearth’s__________Unit4Astronomy:thescienceofthestaresReading导学案主编人：应羽婧2/211.Cleveranimalswithhandsandfeetappeared.12.Mammalsappeared.Therightorderis_____________________________________________________________________.二、Post-reading：thinkaboutwhatyouhavereadanddiscussthesequestionsinpairs.1.Whyisitwrongtoshowfilmswithdinosaursandpeopletogether?2.Whyistheearthdifferentfromtheotherplanets?3.Whydidplantsgrowbeforetheanimalscame?4.Whatproblemiscausedbyhumanbeings?5.Asastudent,whatlittlethingscanwedofortheearth?三、Somedifficultsentencesinthetext.1.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.句子翻译：__________________________________________________________________________这是一个主从复合句，when在此引导_____________。主句中还包括一个what引导的_________,what在从句中做become的______。2.Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.句子翻译：__________________________________________________________________________本句中包含了两个从句。一个是what引导的__________,what在从句中做_____;另一个是that引导的________,that只起连接作用，不充当句子成分。【训练案】一、Translatethefollowingwordsandphrases.系统；体系_______________宗教；宗教信仰_______________展开；传播_______________学说；理论_______________猛烈的；激烈的_______________不像；与…不同___________存在；生存_______________迷；难题__________________因此；于是_______________及时；终于_______________________________产生；分娩_______________________________下蛋_____________________________________轮到某人________________________________阻止；制止_______________________________以…开始_________________________________二、SummaryAfterthe________,theearthwasacloudof___________.Laterthedustbeganto_______into_____.Andthenit________loudlywithfireandrock,whichwereintimeto__________thewatervapour,carbondioxide,…whichweretomaketheearth’s____________.Astheearth_______down,_____beganto________onitssurface.Waterhad_________fromplanetsorsatellites,butit_______ontheearth.Thatmadeitpossibleforlifetobeginto________.Thearrivalof_________encouragedthe_________ofearly_____________________.Manymillionsofyearslater______________begantoappear_________.Later__________appeared.Somewere________.Otherscalled__________,wereabletoliveonlandswellas_________.Whentheplantsgrewintoforests,________appearedforthefirsttime.Aftertheydisappeared,________becamemoreimportant.Theywerethelastgroupofanimalsdifferentfrombecausethey_________fromwithintheirbodies.