人教版选修八课件Unit 5 Meeting your ancestors Listening

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ListeningTask1:P42Theworkonearlypeopledependsonthedatesthataregiventothebonesfound.Ifthedatesarewrong,allthedataaboutearlypeoplemayalsobewrong.SoZhouHepingisveryinterestedtofindouthowarchaeologistsmakesuretheirdatesareaccurate. Listentothetapeandfillthelayersinthe“waterpaperbasket”diagramontheright.Listentothetapeagain.Payattentiontothemethodsarchaeologistsusetodatebonesandhowthosemethodswork,thenfillinthechartbelow. YogurtpotwasterpaperusedenvelopesOrangeskin MethodHowitworks1LayersinthegroundEachlayerlooksdifferentastheyareuncovered,soyoucantellwhereonelayerstartsandanotherfinishes.Inthewastepaperbasket,themostrecentlayeris________,andolderlayerisbelowthatandthe______is___________.2RadiocarbondatingAlllivingthingshave______intheirbodies.Whentheydie,thecarbon_______ata_______rate.Themethodmeasures___________ofcarboninbonesorplantsusingradioactivityandcan______howoldtheremainsare.atthetopoldestatthebottomcarbondisappearfixedtheamountofworkout ListeningTask2:P78TheTerracottaWarriorsareoneofthegreatestChinesearchaeologicalfindsofthe20thcentury.Sincetheirdiscoveryin1974therehasbeenagreatdealofinterestintheirconstruction,function,andartisticvalue.AmandaPeterswantstofindoutmorefromherChinesefriend,thearchaeologist,ZhouLei,abouthowtopreservethem. Mainidea:____________________________________________________________________________________________________________ Whyisthefirstproblemeasiertosolve?AThesolutionissimpleBDampcanbeeasilytreatedCIfonlyoccurswhenitishotDAnewformofchemicalprotectionhasbeeninvented 2.HowdoestheterracottaarmyshowEmperorQinShihuang’spower?ATheyareallthesizeofamanBTheyareaveryimpressivesight.CTherearecopiesof8,000differentmenDArchaeologiststhinkthearmyisacopyofEmperorQinShihuang’srealarmy. 3.WhatcausetheTerracottaWarriorstolosetheircolour?ASunlightandtemperaturechangesBDampandtemperaturechangesCDampandsunlightDAllofthethree Whyisitnoteasytosolvetheproblemofthefortykindsofmould?ATheymayneeddifferentcuresBTheycannotberemovedCTherearesomanyofthemDTheygrewbeforetheexcavation

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所属：高中 - 英语

发布时间：2023-06-09 01:20:02 页数：10

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文章作者：U-344380

人教版选修八课件Unit 5 Meeting your ancestors Listening

资源预览文档简介为自动调取，内容显示的完整度及准确度或有误差，请您下载后查看完整的文档内容。 侵权申诉 举报

资源预览文档简介为自动调取，内容显示的完整度及准确度或有误差，请您下载后查看完整的文档内容。
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