高中英语《unit4 astronomy the science of the stars》教案（6）新人教版必修3 (2)

《高中英语《unit4 astronomy the science of the stars》教案（6）新人教版必修3 (2)》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、TheSixthperiodUsingLanguageTeachinggoals教学目标1.Abilitygoals能力目标PracticeSs’sabiltyoflisteningandreading2.Learningabilitygoals学能目标EnableSstogetknowledgeofgreatscientistsandscienceTeachingimportantpoints教学重点a.thethreescientists’differentideasandtheresultoftheirworkb.theexperienc

2、eofLiYaping’svisittothemoonTeachingdifficultpoints教学难点Understandthelisteningtext.Teachingaids教具准备Arecorder,acomputerandaprojector.Teachingprocedures&ways教学过程与方式StepILeadinT:Wehavelearntalotaboutastronomy,haveyougotinterestedinit?Ifyouaregoingtostudyastronomy,whatproblemwilly

3、oufacemost?S2:Gravity.T:Whatisgravity?S3:Everythingwillfallbacktotheearthifitisdroppedorthrownaway.Thepulloftheearthiscalledgravity.T:Quiteright.Whofirstgottheideaofgravity?S4:IsaacNewton.T:Howdidhegettheidea?S5:Onedayhewassittingunderthetree.Hesawanapplefall,whichmadehimget

4、theidea.BesidesNewton,arethereanyotherscientistswhomadeagreatcontributiontotheideaofgravity?S6:AlbertEinstein,StephenHawking.T:Howdideachofthemthinkofgravity?Ordidtheysharethesameideaofgravity?Comeon,thetapewilltellyou.StepIIListening1.Listentothetapeandchoosethebestmainidea

5、ofthelisteningpassage(Ex.2P30).Mainidea:AThetextisabouthowthreescientistswantedtofindoutaboutthebeginningoftheuniverse.BThetextisabouthowtheideaofgravityhasdevelopedoveralongperiodoftime.CThetextisabouttheimportanceofthreescientistsandtheirworkThebestanswer:SummaryBiscorrect

6、becauseitgivesaclearideaofwhatthelisteningpassageisabout.ListentothetapeagainandfillinthechartinEx.3onP30.IsaacNewtonAlbertEinsteinStephenHawkingIdeaLargebodieshaveaforcewhichpullsthingstowardsthem.Inspacelargeobjectsmakespaceandtimebend;thelargertheobject,thefurtherspaceand

7、timebend.Blackholeshaveaverylargemassandpullthingstowardsthem.DevelopmentThebiggertheobjectthestrongerthegravity.Timegoesslowerinverystronggravity.Ifyougoovertheedge,youcannotgetout;butifyoudonot,youmaybeabletoescape.(Note:Astronomersandscientiststhinkthatablackholeisaregion

8、ofspace(notathing)intowhichmatterhasfallenandfromwhichnothingcanescape—note