浙江省象山中学高中英语《Unit4 Astronomy Warming up and Reading》导学案（无答案）新人教版必修3

PAGEUnit4AstronomyWarmingupandReading学习目标：1.知识与技能：学会天文学方面的一些表达，了解地球上生命的起源。2.情感态度与价值观：关注地球，重视保护环。热爱科学、尊重科学。重点难点：讨论和学习地球上生命的起源问 题 快递公司问题件快递公司问题件货款处理关于圆的周长面积重点题型关于解方程组的题及答案关于南海问题 ，培养学生的阅读能力。学法指导：讨论、成果展示、略读、跳读。自主学习1.重点词汇Astronomy()atmosphere()system()Violent()solid()explode()Carbon()dioxide()oxygen()surface()Planet()harmful()spread()method()2.WarmingupQ1:Whichastronomersdoyouknow?____________________________________________.Q2:Inoursolarsystem8planetscirclearoundthesun.Whatarethey?____________________________________________.Q3:Howmuchdoyouknowabouttheuniverse?Whatarethey?______________________________________________________________.3.FastreadingReadthetextquicklyandwritedownthemainideaforeachparagraph.Paragraph1:___________________________________________________Paragraph2；__________________________________________________Paragraph3:___________________________________________________Paragraph4:___________________________________________________Paragraph5:____________________________________________________我的疑惑：______________________________________________________.合作探究DetailreadingReadthetextcarefullyandanswerthefollowingquestions1.Puttheorderofdevelopmentoflifeintotimeline.(1)()A.Insectsandamphibiansappeared.(2)()B.Dinosaursappeared.(3)()C.Theearthbecameasolidball.(4)()D.Smallplantsgrewonthewater.(5)()E.Reptilesappeared.(6)()F.Plantsbegantogrowondryland.(7)()G.Theearthwasacloudofdust.(8)()H.Waterappearedontheearth.(9)()I.Shellfishandotherfishappeared.(10)()J.Theuniversebeganwitha"BigBang".(11)()K.Cleveranimalswithhandsandfeetappeared.(12)()L.Mammalsappeared.Order:___________________________________________________2.1.Whywastheearthdifferentfromtheotherplanets?________________________________________________2.Whydidtheplantsgrowbeforetheanimalscame?_________________________________________________3.Whyisitwrongtoshowfilmswithdinosaursandpeopletogether?_________________________________________________4.Whatproblemiscausedbyhumanbeings?__________________________________________能力提升Summary:Afterthe“BigBang”,theearthwasjustacloudofdust.It_________loudlywithfireandrock,whichwere_______________toproducethewatervapour,___________andothergases.Thensmallplantsgrew.They___________andfilledtheoceansandseaswithoxygen.Manymillionsofyearslaterthefirstgreenplantsbeganto________onland.Whentheplantsgrewintoforests,________appearedforthefirsttime.Theyproducedyounggenerallyby_________eggs.Whendinosaursdisappeared,__________becamemoreimportant.Nowsmallcleveranimalswith_____________appearedand________allovertheworld.Astime________theycoveredtheearthandtheyareputtingtoomuchcarbondioxideintothe__________,which________heat____________fromtheearthintospace.Whetherlifewillcontinueonearthformillionsofyearstocomewill_____________whetherthisproblemcanbesolved.随堂小测Whatbegantoappearontheearth’ssurfacewhenitcooleddown?A.waterB.gasesC.heatD.carbon2.FromtheLastparagraphwecaninferthattheauthoris____.A.confidentB.sadC.concernedD.angry3.Howmanyyearsdiddinosaursexistontheearth?A.Morethan140billionyears.B.Morethan140millionyearsC.Morethan140thousandyearsD.Morethan140years