NSEFCSIIU13readingppt高二(下)英语新教材课件
日期：2010-06-20 06:23
PRE-READINGStructureofthepassage1minutetoskimthepassage，000kg/m3，meaningthatonecubicmetreofwaterweighsonethousandkilogrammes5?HeatcapacityisthemountofenergyittakestoraisethetemperatureofasubstancebyonedegreecentigradeTopicSentenceofOCEANMOTION:Paragraph:________Sentence:6?Sincechangesinsalinityandtemperatureaffectwatersdensity，focusingonthetitles(titleandsubtitles)inthetextandthenfillinthechartbelowYoudonotneedtoreadthewholetextTHEPROPERTIESOFWATERCHEMICALSTRUCTURESALINITYDENSITYHEATCAPACITYOCEANMOTIONSkimandfindoutthetopicsentencesTaskOneTopicSentenceofHEATCAPACITY:Paragraph:________Sentence:TopicSentenceofDENSITY:Paragraph:________Sentence:4?Thedensityofpurewateris1，thewaterintheoceanisalwaysmovingTopicSentenceofthetext:Paragraph:________Sentence:TopicSentenceofSALINITY:Paragraph:______Sentence:TopicSentenceofCHEMICALSTRUCTURE:Paragraph:________Sentence:732LearningaboutthepropertiesofwaterhelpsusunderstandlifeonourplanetThechemicalstructureofw，
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