5、twasteintotheriver.·Setupalotofdustbinsonthestreet.感知2.呈现3a的内容。体验2.学生根据问题提示进行写作训练。Ⅲ.强化巩固1.处理教材3a的内容。Thinkabouttheenvironmentinyourtown/cityandcompletethechartbelow.GoodenvironmentWhyBadenvironmentWhy park theairisclean river alotofrubbish streets soman
6、ytrees streets somanycars restaurants cleanandtidy air toomanyfactories2.处理教材3b的内容。Writealettertothecitymayorabouttheproblemsandyoursuggestions.DearSir/Madam,Environmentalproblemsarebecomingmoreandmoreseriousallovertheworld.Withthedevelopmentofthesocie