高中英语 unit4 reading学案 新人教版必修3

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1、广东省惠州市惠东县惠东荣超中学高中英语Unit4Reading学案新人教版必修3【学习目标】1.分享有关宇宙的构成、地球的形成、宇宙大爆炸、生物进化的资料；2.了解边缘科学、地球生命的起源，了解万有引力、黑洞和太空旅行等天文知识，培养对科学的兴趣和探究科学的热情；3.了解作者的写作特点，培养创造性思维。【方法指导】1.通读课文，理解文章大意2.再次细读课文，理解细节内容课前预习:①预读课文，找出难懂的句子，与同伴交流学习；②收集有关宇宙的构成、地球的形成、宇宙大爆炸、生物进化的资料。课堂探究案ExploringCaseStep1:Warmingup&Pre-readin

2、gDiscusswiththeclassmatesinyourgroupsaboutthefollowingquestions:1)Wheredowecomefrom?Whoareourancestors?2)Eachreligionandculturehasitsownideasabouthowlifebeganonearth.Whatdoyouknow?3)Inoursolarsystemeightplanetscirclearoundthesun.Whatarethey?Howtoremembertheorder(顺序)oftheeightplanets(行星)？

3、4)Whatinterestsyouinastronomy?Doyouknowanyquestionsthatastronomersareinterestedin?AQuizGame(知识小竞赛):1.Howoldistheearth?A.About3.5billionyearsB.About4.5billionyearsC.About5.5billionyearsD.About6.5billionyears2.______oftheearthsurfaceiscoveredbywater.A.20%B.30%C.50%D.70%3.Howmanyplanetsaret

4、hereintheSolarSystem?A.6B.7C.8D.94.Whatisthetotalpopulationofhumansontheearth?A.About3.5billionB.About4.5billionC.About5.5billionD.About6.5billion5.Howlongdoestherotationoftheearthtake?A.12hoursB.24hoursC.amonthD.365days6.Whichcontinentisthesmallest?A.AfricaB.NorthAmericaC.SouthAmericaD.

5、Oceania7.OnwhatdayistheEarthdaycelebrated?A.April22B.May4C.August21D.November118.Whichoceanisthelargest?A.ThePacificOceanB.TheArcticOceanC.TheIndianOceanD.TheAtlanticOcean9.Whichcountryhasthelargestarea?A.CanadaB.ChinaC.RussiaD.U.S.AStep2:Prediction:1.LookatthepictureonP25.Whatcanyousee?

6、_____________________________2.Nowcombinethetitleandthepictures,andthenpredictwhatthereadingwillbeabout?_______________________________________________________Step3:FastreadingSkimthepassageandmatchthemainideawitheachparagraph.Para.1Theformationoftheearth.Para.2Theimportanceofwaterforlif

7、e.Para.3Awidelyacceptedtheoryabouttheformationoftheuniverse.Para.4Thearrivalofhumansandtheirimpactontheearth.Para.5Thedevelopmentofplantsandanimalsontheearth.Scanthetextandchoosethebestanswerandchoosethebestanswer.1.Whywastheearthdifferentfromotherplanets?A.Itproducedalot