5、actoriesthatputwasteintotheriver.·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/cityandpletethechartbelow.GoodenvironmentWhyBadenvironmentWhy park theairisclean river alotofrubbish s
6、treets somanytrees streets somanycars restaurants cleanandtidy air toomanyfactories2.处理教材3b的内容。Writealettertothecitymayorabouttheproblemsandyoursuggestions.DearSir/Madam,Environmentalproblemsarebeingmoreandmoreseriousallovertheworld.Withthedevelopment