高中英语 Unit4 全单元教案必修三VIP免费

Unit4Astronomy:thescienceofstarsPeriod1Warmingup&Pre-readingTeachingaims:1.Learnthenewwords.2.TalkaboutthescienceofstarsStep1WordsLearnthenewwordsofthisunit.Step2Warmingup&leadin1.TalkaboutsciencesubjectsT:Goodmorning/afternoon,everyone.Whatclassdoyouhavetoday?S1:Maths,English,Chinese,physics,history,andgeology.T:Whatothersubjectsdoyouhaveinschool?S2:Computer,chemistry,biology,music,PE,andpolitics.T:Whichisyourfavourite?Why?S3:Myfavouriteoneis…becauseit’sveryinteresting/exciting/instructive/…S4:Ilike…bestbecause…2.TalkaboutuniverseandsolarsystemT:Let’sfollowthisastronomertolearnaboutuniverse.Howdidtheuniversecomeintobeing?S1:Afterthe“BigBang”,theuniversecameintobeing.T:Doyouknowthesolarsystemintheuniverse?Whatisitmadeupof?S2:Thesolarsystemcontainseightplanetsandmanycometsandotherobjects.T:Canyounametheeightplanets?S3:TheSun,Mercury,Venus,Earth,Mars,Jupiter,Saturn,Uranus,andNeptune.T:Whichplanetdoweliveon?Canyoudescribewhatitlookslike?S4:Earth.Itsupportsavarietyoflifeand70%oftheearthiscoveredwithseasoroceans.T:Whydoeslifeonlyexistontheearth?S5:Becausethereisairandwaterontheearth.Step3Pre-readingGetthestudentstodiscussthequestionsonpage25withtheirpartners.Thenaskthestudentstotelltheirstories.Encouragethemtotelldifferentstories,Iftheydon’tknowany,tellthemsome.Readsomestoriestothestudents.Panguseparatestheskyfromtheearth;TheBiblicalAccount;India;Japan;Europe;Letthemdiscussingroups.Step4Homework1.Reviewthewordsofthisunit.2.Previewthepassageof“Reading”.3.Dopage27Ex.3.Unit4Astronomy:thescienceofstarsPeriod2ReadingandComprehendingTeachingAims:EnabletheSstosaysomethingaboutastronomyHelpthestudentstoformagoodhabitofreadingCultivatetheSs'awarenessofprotectingtheearth.TeachingImportance:HowtoimprovetheSs'abilitytounderstandhowlifebeganontheearthTeachingMethods:Task--basedmethodTeachingProcedure:Step1.Warmingup1.Freetalk2.ReviewthewordsofUnit4byplayingchessontheblackboard.Step2Leading-in1.Talkaboutsomepictures.2.WatchavideoandthenasktheSstoputthepicturesonthescreenintoarightorder.Step3ReadingTask1SkimmingReadthepassagequicklyandjointhemainideaforeachparagraph.Para.1a)ThearrivalofhumansandtheirimpactontheearthPara.2b)ThedevelopmentofplantsandanimalsontheearthPara.3c)AwidelyacceptedtheoryabouttheformationoftheuniversePara.4d)TheimportanceofwaterforlifePara.5e)TheformationoftheearthTask2ScanningReadthepassagecarefullyandthenfillintheblankswithdifferentkindsoflivingthings.Fillintheblankswithdifferentkindsoflivingthings.1________________2____________________3________________4__________5__________6_________7__________8__________9__________SmallplantsinwatershellfishandallsortsoffishgreenplantsonlandinsectsamphibiansforestsreptilesdinosaursmammalsplantsanimalsTask3CarefulReading:Finishthesummaryaccordingtothetext:Afterthe“bigbang”,theearthwasstilljustacloudof_______,it_______loudlywithfireandrock,whichwere_____toproducethe_________,carbondioxideandothergases.Then________grew.Theymultipliedandfilledtheoceansandseaswith_____.Manymillionsofyearslaterthefirst________begantoappearonland.Whentheplantsgrewtoforest,_____appearedforthefirsttime.Theyproducedyounggenerallyby__________.Whendinosaursdisappeared,________becamemoreimportant.Task4PostReadingDiscussingroups.1.Whatproblemshavebeencausedbyhumanstotheearth?2.Howtoprotecttheearthandmakeitabetterplacetoliveon?Step4Homework1.Searcht...