必修三：Unit-4-Astronomy-the-science-of-the-stars导学案及答案.doc

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1、[高效预习探究案]一Warmingup&Pre-reading本节课学习知识早知道：对于要学的知识做到心中有底，这样才能更好的安排自己的学习步骤和学习时间，愿知识清单能够更好的帮助你进行自主学习！我们将要学习的学习内容：1.Toencouragestudentstothinkandtalkaboutastronomy.2.Learnsomenewwordsandphrases.能力目标：Todevelopstudents’abilityofcreativityandimagination.Tolearntotal

2、kaboutastronomyinEnglish.语言目标：掌握重点词汇astronomy,astronomer,solarsystem,religionTasks:Step1:Lead-inandwarmingupGetthestudentstotalkaboutastronomy,Thestudentscantalkfreelyastheylike.1.Areyouinterestedinastronomy?Doyouknowsomethingaboutit?Doyouknowaboutanyfamousas

3、tronomersintheword?wasthefirsttosuggestthatgravityisaforce.developedanewideaofgravityandthetheoryofrelativity.ismostfamousforhisworkon:blackholes.Doyouknowsomethingaboutsolarsystem?Solarsystemismadeupofandtheobjectsthatorbitit.Theseincludesandtheir,aswellasas

4、teroids(小行星),comets（慧星）,andmeteors（流星）.2.Howmanyplanetscirclearoundthesun?a.Whatarethey?(accordingtotheorderofthedistancefromthesun)b.Thereusedtobenineplanetsinthesolarsystem.Oneofthethemcannolongerbeconsideredaplanet.What’sthenameoftheplanet?Whydidscientists

5、removeit?3.Istherelifeontheseplanets?Step2:Thinkitover1.Howoldistheuniverse?2.(1)Howdidtheuniversebegin?Differentreligionandculturehasdifferentideas.Whatdoyouknow?Thefollowingnotesmaybehelpful.6a.ThestoryoftheHopipeople:TheFourCreations.b.FromChina:Thestoryof

6、PanGuc.TheJewish/Christian/Muslimstory(2)Theuniverseismadeupofstars,planetsandothermatterscatteredthroughoutspace.3Howoldistheearth?4.Whatmadeitpossibleforlifetodevelopontheearth?5.Whichdoyoufirstthinkexistedontheearth,plantsoranimals?[高效预习探究案]二Reading一、热身问题1

7、.Lookatthepicturesandthetitleofthereadingpassage.Predictwhatthereadingwillbeaboutandwhatwillbementionedinthetext?二、速读课文，回答下列问题1.Howdidtheuniversebegin?2.Whendidthedustsettleintoasolidglobetobetheearth?3.Whatbegantoappearonitssurfacewhentheearthcooleddownafter

8、exploding?4.Whatbegantoappearonthesurfaceofthewatermanymillionsofyearslater?5.Howmanyyearsdiddinosaursexistedontheearth?Whendidtheydisappear?三、精读课文，回答下列问题1.Puttheorderofdevelopmentoflifei