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Unit1TalesoftheunexplainedPeriodoneWelcometotheUnitTheAnalysisofthispart:Ssareencouragedtodoafreediscussionaboutsomemysteriousandunexplainedphenomenaintheworld.Teachingaims:1.HelpSspracticespokenEnglish.2.HelpSsexpresstheiropinionsboldlyandimaginatively.Teachingmethods:1.Lookingandspeaking2.Discussioninpairsorgroups.Teachingprocedures:Stepone:Lead-inToday,ourtopicsarenotonlyinterestingandattractive,butalittlemysteriousaswell.Theyarebeyondourknowledge.Maybeweonlyhearofthem.Eventheadvancedscienceandtechnologyoftodaycan'toffersatisfactoryanswerstothem.Steptwo:PicturetalkingUFOS,Yetis,CropcirclesandStonehengeT:Dothesetopicshavesth.incommon?Ifso,whatisit?(Unexplained,nosatisfactoryanswers,mysterious,noevidence.....)Howdoyoufeelaboutthem?Areyouabitcurious?Nowlet'sdiscussthepicturesonpageone.2.Askstudentstodiscussallthepicturesinpairsorgroupsandthenreporttheresultoftheirdiscussiontotheteacher.Stepthree:DescriptionofthepicturesPictureone:UFOS1)WhatdothelettersUFOstandfor?ItstandsforunidentifiedFlyingObject,thatis,anobject,apparentlymovinginthesky,whichwecannotidentify.2)Doyoubelieveinit?Ineverbelieveinspacecraftcarryingvisitorsfromouterspace.Picturetwo:Yetis1)WherearetheHimalayas?ItisinthesouthofAsia.2)What'stheweatherlikethere?cold.3)WhatistheYeti,andwhatisitlike?It'sreportedtobehalf-manandhalf-beast.It'ssupposedtoliveinthehighestmountainintheworld---MountQomolangma.Picturethree:CropcirclesIt’ssaidthattheearliestcropcirclesappearedinEnglandin1647.Cropcirclesarereportedtoappearmostlyinspringandsummer.Peoplearecuriousaboutthephenomenon.Whataboutyou?Doyoureallybelieveit’sanaturalphenomenon?1.Doyoubelieveintheexistenceofaliens?2.Doyouthinkthecropcirclesaremadebyaliens?Picturefour:StonehengeWhobuiltStonehengeinEnglandandforwhatreason?Nooneknowstheanswer!1.HaveyoueverheardorreadabouttheStonehenge?2.AreyouinterestedinStonehenge?3.Wouldyoubeinterestedindiscoveringmoreaboutthem?Stepfour:DiscussionAskstudentstodiscussthequestionOnP1inpairsoragroupoffour.Thenaskeachgroupleadertorepor