牛津译林版英语9B Unit4 Reading公开课 (共28张PPT).ppt

,LifeonMars,9BUnit4Reading,Reading1,crowdedandpolluted,Planetsinthesolarsystem(太阳系),MarsisthenearesttotheEarth.,Mars,Earth,ThesurfaceofMarsisalittlelikethesurfaceoftheEarth.,PleaseopenyourbooksandturntoP52.Gothroughthepassagequickly,thenfindouttheanswer:Howmanyparagraphsarethere?Howmanypartscanbedivided?,Task1:Skimming,thegravityofMars,thereasonofmovingtoMars,thespeedofspacecraft,comfortablelifeonMars,theproblemsoffood,waterandoxygenonMars,Thewritersopinion.,studentsfuturestudy,Paragraph1:,Scanning,Task2:,thereasonofmovingtoMars,1.WhencanweliveonMars?2.WhydoweneedtomovetoMars?,Wecanbuildabetterworldon.,Mars,Paragraph2:spacecrafthavesomedifferencesbetweennowandinthefuture.,thespeedofspacecraft(transport),Withthedevelopmentoftechnology,thespacecraftcantravelatthespeedofl_.,Wemayfeel_and_.ThejourneytoMarsmightonlytake20m_.,low,arry,months,ight,uncomfortable,ill,inutes,spacecraft宇宙飞船,Atpresent,Bytheyear2100,assengers,theproblemsoffood,waterandoxygenonMars,Paragraph3:,1.Humanscansurvivewithoutwater,oxygenorfood_2.Wedontknowwhethertherewouldbeenoughwater,oxygenonMars_3.ScientistsaresurewhetherplantswillgrowonMars_4.Foodwouldmostprobablybeintheformofpills_5.FoodonMarsismoredeliciousthanitontheEarth._,Tellus“T”ifasentenceistrueor“F”ifitisfalse.,F,T,F,T,F,Wearenotsurewhethertherewouldbe_wateror_andwhether_couldgrow.Foodwouldprobablyintheformof_andwouldnotbe_.,Water,oxygenandfood,enough,plants,pills,tasty,oxygen,Paragraph4:,ThegravityofMars,()1.Ifanelephantweighs64kgontheEarth,howmuchdoesitweighonMars?A.24kgB.34kgC.64kgD.32kg,A,()2.WhydopeoplehavetowearbootsonMars?A.Becausetheyarebeautifulandfashion.B.Becausetheycanpreventpeoplefromfloatingoffintospace.C.Becausetheycangivepeopleoxygen.D.Becausetheyarecomfortableandcheap.,B,Whilereading,ifyoumeetlonganddifficultsentences,1.First,readthewholesentencecarefully.,2.Second,findsomekeywords:,that:objectclauseordefiningrelativeclause,after/before/while/when:timeclauses,so-that/such-that:showtheresultofsth.,sothat:totalkaboutthepurposeofdoingsomething,Helpyouunderstandthesentencebetter.,Paragraph5:,comfortablelifeonMars,Readandputthesesentencesinthecorrectorder.reorganizethemintoashortpassage.,atarealschoolontheEarth,atonlineschoolsonMars,Paragraph6:,studentsfuturestudy,DifferencesbetweenlifeonEarthandlifeonMars,atthespeedoflight.,three-eighthsofthegravity,specialboots,houseswithhugecomfortablerooms,onlineschools,intheformofpills,“e-teachers”,WhatdoesthewriterthinkofthelifeonMars?,Paragraph7:,LifeonMarswouldbeinterestingaswellaschallenging.,Wherewouldyouliketolive,EarthorMars?,Discussion:,Why?,Task4,Fourinagroupanddiscuss.,Everystudentcanexpressyourownideaandtalkaboutthereason.,Idliketolive-because-,ProtectourownplanetEarth,Plantmoretreesandflowers.,Pickuprubbishandthrowitintotherubbishbin.,Savewater,powerandotherusefulresource.,Havealowcarbonlife.低碳生活,Weshouldstudyhardtogetenoughknowledgefortheresearchworkinthefuture.,研究工作,TheMarswillturnintoanotherearthinthefuture.,Fillintheblanks.,TheEarthisbecomingmoreandmorecrowdedandpolluted_the_inpopulation.Itishopedthatpeoplecouldstart_onMars.Hereiswhatlifetherecouldbe._2100,thejourneytoMarsmightonlytakeabout20minutesinspacecraftthattravel_light!Andfoodwouldmostprobablybe_pillsandwouldnotbeso_.,rapidincrease,becauseof,alloveragain,Bytheyear,atthespeedof,intheformof,tasty,Peoplewouldhaveto_bootsthatarespeciallydesignedtopreventthemselves_(floatoff)intospace.Atthesametime,peopleonMarswouldhavemorespace.Theymightliveinhouseswithhugecomfortablerooms.Also,robotswoulddomostoftheirwork_theycouldhavemoretimetorelax.LifeonMars