冀教版英语八年级下册Unit2Lesson13教案Lesson13Whyareplantsimportant?Learningaims:1.Rememberthenewwords:air,energy,die,heat,nothing,bamboo,kilogram,shade,carryaway,make…into.2.Theimportantsentences:①Treeshelpcleantheair.②Donutsdon'tgrowonthetrees!③Allplantstakeenergyfromthesunandmakeitintofood.④Withoutfood,theywouldhavenothingtoeatandtheywoulddie.Learningimportantanddifficultpoints:1.区分短语intrees与ontrees。2.Master“Whyareplantsimportant?”Learningmethod:Listen,say,readandwrite.Learningsteps:Step1.TalkingTalkabout:Whydoweneedtrees?Whatkindofthingscanplantsdo?Step2.LearningLearnnewwords.Step3.ReadingReadthedialoguefirst.Thenfindouttheusefulexpressions.1.talkabout2.cleantheair3.ontrees/intrees4.carry…awayStep4.PracticePracticethedialogueinpairs.Step5.DoexercisesStep6.HomeworkWhydoweneedplants?Findthreeanswerstothesequestions.