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1、Unit4Astronomy:thescienceofstarsTeachingaims:1.Talkaboutthescienceofstars2.Practisegivinginstructions1.Learntousenounclausesasthesubject2.Learntowriteanessaytoshowyourproblemsandthewaytoovercomethem.3.Vocabulary:astronomy,atmosphere,violent,explode,surface,disappointed
2、,gradually,cheer,mass,harmful,presenee,intime,prevent・・・from***dependon,nowthat,getthehangof,breakoutThefirstperiodIntensivereadingStepIPresentationT:Hello,everyone!TodaywewillcometoUnit4,Astronomy.BeforethatIhaveaquestion:wheredowecomefrom?Orwecansay:Whoareourancestor
3、s?SI:Monkeys!S2:BeijingRenwholivedmanyyearsago.S3:dinosaurs•••T:Verygood!Doyouknowwhatitwaslikebeforelifeappearedonearth?S4:Fullofwater---Bs:Idon'tknow.T:Doyouwanttogetmoreinformation?Ss:Yes,wedo.T:Todaywewilllearnsomethingabouthowlifebeganonearth.Turntopage25.Let'scom
4、etoWarmingupfirst・StepIIWarmingup1.Readthethreequestions,whilethestudentslistenandfollow.2.Givethestudentsseveralminutestodiscussthequestions・3.Collectanswersfromtheclass・4.Checkanswerswhilediscussing.StepIKPre-readingGetthestudentstodiscussthequestionsonpage25withthei
5、rpartners・Thenaskthestudentstotelltheirstories・Encouragethemtotelldifferentstories,Iftheydon'tknowany,tellthemsome・T:Nowdiscussthesequestionswithyourpartners・ThenIwillasksomeofyoutotellusyourstories.Areyouclear?Ss:Yes・a.Doyouknoweachreligionorculturehasitsownideasabout
6、thebeginningoftheuniverse?Giveanexampleifyouknow.b.Doyouknowwhatascientificideais?Readsomestoriestothestudents・Panguseparatestheskyfromtheearth;TheBiblicalAccount:India;Japan;Europe;•••StepIVReading1.SearrningGetthestudentstoreadthepassagequicklyandaccuratelyandmeanwhi
7、lehelpthestudentstoformagoodhabitofreading・Givethestudentsacoupleofminutestolookthrouththewholepassage・Tellthemtoreadsilentlyandthenasksomedetailedquestionsaboutthetext・Encouragethemtoexpresstheirideas・T:Wearegoingtolearnapassageabouthowlifebeganontheearth・Nowreadthete
8、xtquicklyandthenanswermyquestions.a.Whatwasthereontheearthbeforelifebegan?b.Whydoscientistthinktherehasneverbeenlifeo
