浙江省衢州市仲尼中学高一英语精品教案:Unit2Workingtheland5(新人教版必修4)教材分析(analysisofteachingmaterial):Thispassageisaaboutorganicfarming.Nowadays,thechemicalfertilizersarepopularamongfarming.Itdamagestheland,isbadforenvironmentandpeople’shealth.Somefarmersandcustomersprefertheorganicfarming.Studentscanlearnsomethingaboutitfromthispassage.学情分析(analysisofthestudents):Thispassageislittledifficultforourstudents.Therearesomedifficultsentencesforthem.Teacherscanhelpstudentstoreadthemandtrytotranslatethem.Meanwhile,ourstudentscanlearnsomethingnewaboutfarming.Chemicalfertilizerscausemanyproblems,soorganicfarmingarepopularamongfarming.教学目标(Teachingaims)知识目标(Knowledgeaims):cantranslatethesentences;learnthelanguagepointsandcanfinishtheexerciseonthebook.能力目标(Abilityaims):canretellthepassageandcansaysomethingaboutorganicfarming.Canusethewordsandexpressiontoexpresstheirideas.情感目标(Emotionalaims):risestudents’interestaboutEnglishandcanexpresstheirideasfreely.教学重点和难点(teachingimportantpointsanddifficultpoints)#Teachingimportantpoints:alllanguagepoints.Newwordsandexpressions#Teachingdifficultpoints:Cropssuchaspeasorsoybeansputimportantmineralsbackintothesoil,makingitreadyforcropssuchaswheatorcornthatneedrichandfertilesoil.本句中,makingitreadyforcropssuchaswheatorcornthatneedrichandfertilesoil表示“像豌豆或大豆这样的农作物将重要的矿物质带回土壤”的结果,即动词-ing形式表结果。教学过程(Teachingprocedures)Step1review1)Readthewordsandexpressionstogether.2)Retellthestoryonpage14.Step2languagepoints1.Thesechemicalsinthefoodsupplybuildupinpeople’sbodiesovertime.1)supplyn供给,供应反义词:demandsupplyanddemand供与求beinshortsupply供应不足,供应缺乏foodsupply食物供应watersupply供水供应品,生活用品,补给品用复数形式supplieshouseholdsupplies家庭用品medicalsupplies医用品2)buildup逐渐增强,开发,建立buildupone’sbody增强体质2.Manyofthesechemicalscanleadtocancerorotherillnesses.leadto导致,造成(后果),通向eg:Eatingtoomuchsugarleadstorottenteeth.resultin导致,致使resultfrom由……造成,因……产生3.Inaddition,fruit,vegetablesandotherfoodgrownwithchemicalfertilizersusuallygrowtoofasttobefullofmuchnutrition.1)inaddition另外,加之eg:Inaddition(tothenamesonthelist)therearesixotherapplicants.inadditionto=besides除了……之外Inadditiontoanalbum,Igavehimapenandapencil.2)befullof:befilledwith装满befilledwithhateforsb.满怀对某人的憎恨eg:Onaclearnight,theskyappearstobefilledwithstarts.4.Theyfocusonkeepingtheirsoilrichandfreeofdisease.focusn.焦点,中心点Thefocusonmycameraisn’tworkingproperly.v.集中,聚焦I’msotiredthatIcan’tfocusonanythingtoday.拓展:centeron集中在,着重在concentrateon集中(注意力、精力等)于……putone’sheartintosth.全神贯注做某事5.Thisalsokeepstheair,soil,waterandcropsfreefromchemicals.keep…freefrom/of=protect…from使……免受(影响;伤害)freefrom没有;不受……损害eg:Thishouseisfreefromflies.Youshoulddomoreexercise,whichcankeepyoufreefromcold.拓展:acityfreefromthieves无贼的城市adayfreefromwind无风的一天keepsb.doingsth让某人一直做某事keepsb.fromdoingsth.阻止某人做某事6.Cropssuchaspeasorsoybeansputimportantmineralsbackintothesoil,makingitreadyforcropssuchaswheatorcornthatneedrichandfertilesoil.本句中,makingitreadyforcropssuchaswheatorcornthatneedrichandfertilesoil表示“像豌豆或大豆这样的农作物将重要的矿物质带回土壤”的结果,即动词-ing形式表结果...