integratingskills高二英语课件
日期：2010-05-12 05:25
IntegratingSkillsoNature’sNursery:EstuariesUnit13Fastreading:GetthegeneralideaofeachparaPara1Para2Para3Para4EstuariesprovidebothrecreationandeducationforhumanbeingsWhatestuariesisanditspropertiesWhyestuariesaresuch“goodnurseries”ThefilterfunctionofestuariesStructureofthepassage124312431234√Mainideaofthepassage:EstuariesarethenurseriesforlifeintheoceansandriversFindthedefinitionofanestuaryAnestuaryisthebodyofwaterwherearivermeetstheoceanSaltwaterfromtheoceanandfreshwaterfromtherivermixtogetherinanestuaryThismixingoffreshandsaltwatercreatesauniqueenvironmentfilledwithlifeofallkinds－azonebetweenthelandandseaQuestions:1)Whyareestuariessuchgoodplacesfornature’syoungone?2)Whatdoesdensitymeaninthispassage?3)Howdoestuariesaffectthewaterthatpassesthroughthem?4)Whyareestuariesmoresensitivetopollutionthanotherareas?5)Whyareestuariesimportanttohumanbeings?Becausethehabitatprovidesallthebenefitsoftheocean(energyandnutrients)withoutthedangers(wavesand，
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