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1、Unit4Astronomy:thescienceofstarsTeachingaims:1・Talkaboutthescienceofstars2.Practisegivinginstructions1.Learntousenounclausesasthesubject2・Learntowriteanessaytoshowyourproblemsandthewaytoovercomethem・3.Vocabulary:astronomy,atmosphere,violent,explode,surface,disappointed,gradually,c
2、heer,mass,harmful,presence,intime,prevent・・・from.・・dependon,nowthat,getthehangof,breakoutThefirstperiodIntensivereadingStepIPresentationT:Hello,everyone!TodaywewillcometoUnit4,Astronomy.BeforethatIhaveaquestion:wheredowecomefrom?Orwecansay:Whoareourancestors?SI:Monkeys!S2:BeijingR
3、enwholivedmanyyearsago.S3:dinosaurs•••T:Verygood!Doyouknowwhat让waslikebeforelifeappearedonearth?S4:Fullofwater...Bs:Idon^tknow.T:Doyouwanttogetmoreinformation?Ss:Yes,wedo.T:Todaywewilllearnsomethingabouthowlifebeganonearth・Turntopage25.Let'scometoWarmingupfirst.StepIIWarmingup1・Re
4、adthethreequestions,whilethestudentslistenandfollow・2.Givethestudentsseveralminutestodiscussthequestions・3.Collectanswersfromtheclass・4・Checkanswerswhilediscussing・StepIIIPre-readingGetthestudentstodiscussthequestionsonpage25withtheirpartners・Thenaskthestudentstotelltheirstories.E
5、ncouragethemtotelldifferentstories,Iftheydon'tknowany,tellthemsome.T:Nowdiscussthesequestionswithyourpartners.ThenIwillasksomeofyoutotellusyourstories.Areyouclear?Ss:Yes.a.Doyouknoweachreligionorculturehasitsownideasaboutthebeginningoftheuniverse?Giveanexampleifyouknow・b・Doyouknow
6、whatascientificideais?Readsomestoriestothestudents・Panguseparatestheskyfromtheearth;TheBiblicalAccount;India;Japan;Europe;•••StepIVReading1.ScanningGetthestudentstoreadthepassagequicklyandaccuratelyandmeanwhilehelpthestudentstoformagoodhabitofreading.Givethestudentsacoupleofminute
7、stolookthrouththewholepassage・Tellthemtoreadsilentlyandthenasksomedetailedquestionsaboutthetext.Encouragethemtoexpresstheirideas.T:Wearegoingtolearnapassageabouthowlifebeganontheearth.Nowreadthetextquicklyandthenanswermyquestions・a.Whatwasthereontheearthbeforelifebegan?b・Whydoscie
8、ntistthinktherehasneverbeenlifeon
