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精品课件-综合英语Unitwatercycle.ppt

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综合英语UnitwatercyclePartIIntroductionofFunctionsI’mquitesure/certain(that)…I’mabsolutelysure/certain(that)…I’mfairlysure/certain(that)…I’msure/certainabout…I’venodoubtabout…Yes,I’monehundredpercentsure.Yes,certainly/definitely/ofcourse.Yes,withoutdoubt.Yes,really!Yes,that’sobvious.Howtoexpressuncertainty:Extraexpressionsofthesamefunctions:DiscussionThemostunexpectedmomentinmylifeInteractivelistening&speakingListentoalecturegivenbyanexpertaboutwastewatertreatmenttechnologies.Whileyoulisten,takenotesandcompletethetasksonpage51.AnengineeringmarvelThreemajorstepsNature’sprocessesofwastewatertreatmentandhowitisdifferentfromtheengineeringprocessesinthewastewatertreatmentByproductsofwastewatertreatmentandtheirusesPartIIPre-readingTaskComprehensionWorkLanguageWorkHowmuchdoyouknowaboutSingapore?(history,officiallanguages,population,economy,etc.)2.Whatelseareyouinterestedtoknowaboutthislittlecity-state?Pre-readingTask2NEWateristhebrandnamegivento________waterproducedbySingapore'sPublicUtilitiesBoard.More___________,itistreatedwastewater(sewage)thathasbeen_________usingadvancedmembranetechnology(膜化学技术)inadditionto____________watertreatmentprocesses.Thewaterispotable(可饮用的)andisconsumedbyhumans,butismostlyusedforindustryrequiringhigh________water.TheSingaporeWaterReclamationStudy(NEWaterStudy)wasinitiatedin1998,withanaimtodetermineifNEWaterwasaviable(可行的)sourceofrawwaterforSingapore'sneedsandto_________relianceonwaterimportedfromMalaysia…By2060,NEWaterisprojectedtomeet50%ofSingapore’sfuturewaterdemand.WhenSingaporebecameindependent,whatproblemsdiditfaceintermsofresources,andhowdiditaddresstheseproblems?2.HowdidSingaporegainwaterindependence?3.WhatwerethereactionsofmanufacturersandordinarySingaporeanstothetreatedwaterwhenitwasintroduced?Howdidthewaterutilitymakethemaccepttherecycledwater?4.Howtounderstand“itcanbesaidthatthecountryhasmerelysubstitutedoneformofdependenceforanother”(para.9)?5.Whatisthetrade-offofthewastewatertreatmentproject?HowdidSingaporeso