thetopicofthissection.Step2PresentationTalkaboutthesandstorms.?Thenleadto1c.Workingroups.eintobeing.Sumup:Cuttingdowntoomanytreescancausesandstorms.Buthowcanthataffecttheweather?Leadto1a.Listentothetapeandfindouttheanswertothefollowingquestion.Q:(1)Whataretheytalkingabout?(2)Whatcausesthesesandstorms? (3)Whataretrees’functions?Step3Consolidation1.LetSsread1acarefully,findandtalkaboutthelanguagepointsandusefulexpressions.HelpSsunderstandthem.2.Retelltheconversationwiththekeywordsandphrases.Step4Practice1.Showapictureandavedioaboutwater2.LeadtoPart2.HelpSsunderstandtheimportantceofsavingwater3.Discussingroups:Whatkindsofwaysdowehavetosavewaterbesidesthewaysin2.Thenasksomestudentstoreporttheirresults.Finish2.(Iftimepermits.)Step5ProjectWriteashortpassagewiththetitle“ProtectingandSavingWater”.
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