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1、KeytoExercisesOpener1.Thespeakeristalkingabout thecomingglobalwatercrisis/waterproblem.2.Wateristhekeycomponentinourdailylife,notonlyfor humanuse,butforenergy,industry, agriculture,andlivestock.3.Ifyoulookat theearth,youwillnoticethatover75%ofourblueplaneti
2、swater.Buttheproblemisonly3%ofthatwateris freshwater.Transcript:Today,accordingtoUNICEF,atleast2.6billionpeoplelackadequatesanitation,while1.1billionpeoplelivewithoutcleandrinkingwaterperiod.Wateristhekeycomponentinallofourdailylivesnomatterwherewelive,noto
3、nlyforhumanuse,butforenergy,industry,agriculture,andlivestock.Nowifyoulookattheearth,you’llnoticethatover75%ofourblueplanetiswater.Theproblemisonly3%ofthatwaterisfreshwater.Reading&InteractingI.UnderstandingtheText1.TextOrganization1.1Paras.1-2:Weneedtocons
4、ervewateraggressivelysothatscientistscanhavetimetofindsolutions.Paras.3-7:Waterisgoingtobethemostimportantandmostcontentiousresourceofthe21stcentury.Paras.8-9:Therearesolutions,buttheytaketime.Para.10:Aggressiveconservationisneededtobuyustimebeforescientist
5、sfindsolutions.1.21)Waterisonthewaytobecomingthemostimportantresourceofthe21stcentury.Gettingwaterrightisthegreatchallengetheworldisconfrontedwith.Tomeetthechallengeconservationshouldcomefirst;thenfollowitupwithnewsolutions.2)Tointroducethewaterproblem,thea
6、uthortellsusaboutwhathappenedonenightwhenheandhisseven-year-olddaughterwerebrushingteethtogether.Insodoingtheauthortriestointroducethereadertoaserioustopicinacasualmanner.Besides,italsoremindsusofthefactthateveryonecanplayarole,eveninourdailylife,insavingwa
7、ter.3)HecitesthelateNobelLaureateRichardSmalley’slistofhumanity’stop10problemsforthenext50years.4)Hewantstoshowthereaderhowdifficultitisforustofindasolutiontothewaterproblem.5)Herepeatswhathesaysatthebeginningofthearticle:Thewaterproblemcanbesolvedbut“Thesc
8、ientistsneedtime.”2.ComprehensionCheck2.1FocusingonthemainideasInhis2003speechatRiceUniversity’sEnergy&NanotechnologyConference,thelateNobelLaureateRichardSmalleyhighlightedthe top 10problemsforthenext
