Unit4OurWorldTopic1Plantsandanimalsareimportanttous.SectionA(1a,1band3)Place:多媒体Teacher:Teachingaimsanddemands（三维目标）:1、知识目标:（1）Learnsomenewwords:countryside,sky,clear,nature（2）Learnthewayofexpressingcomparativesituations:Theairisfresher.（3）Learnthecomparativeandsuperlativedegreesofadjectives.2、能力目标:Improvestudents’readingandspeakingability.3、情感目标:促进学生的英语合作学习，并在合作学习中进一步地明确与巩固本课的知识。Teachingimportantparts（教学重点）:1.Learnandmasterthenewwordsandthewayofexpressingcomparativesituations.2.Learnthewayofexpressingcomparativesituations.Teachingdifficultparts（教学难点）:Learnthecomparativeandsuperlativedegreesofadjectives.Teachingmethod:任务型教学法Teachingtools:课本，多媒体课件和幻灯片Teachingprocedure(教学流程):Step1Pre-task任务前1、Leading听3的Let’schant.让学生初步感受形容词的比较级和最高级。2.(通过幻灯片，教师引导学生比较城市与农村，并帮助学生说出一些含比较级的句子。)T:Weliveinthecountryside.Doyoulikelivinginthecountrysideorthecity?Why?S1:Ilikethecity,becausetheroadsarewider,andthebuildingsaretaller.S2:Ilikethecountryside,becausetheairisfresher,andtheskyisbluer.T:Yes,Ialsolikethecountrysidebecausetheriversareclearer,andtherearealsogreenertrees.Peoplecanenjoythebeautiesofnaturethere.(板书并要求学生掌握sky,nature,clear；理解beauty。)sky,clear,beauty,nature(教师引导学生观察wider,higher,fresher,bluer,greener的变化规则并适当讲解形容词比较级的变化方式。)Step2While-task任务中通过学习1a对话及对其内容的复述，让学生体会形容词的比较级的用法。1.(让学生看1a挂图，观察人物，猜测他们之间的对话内容。听1a录音，回答问题。)T:Lookatthepicture.MichaelandWangWeiaretalkingaboutlifeinthecountryside.Nowlistentothetapeandtrytoanswerthefollowingquestions:WheredoesWangWeiliketolivebetter，acountrysideoracity?(核对答案。)2.(再放1a录音，让学生跟读1a，注意语音语调。)T:Listento1aandreadafterthetape.Payattentiontothepronunciationandintonation.通过对1a的朗读及1b复述，让学生理解形容词比较级的用法。1.(分角色朗读课文。)T:NowI’lldividetheclassintotwogroups.GroupAactsasMichael,andGroupBactsasWangWei.Thenchangetheroles.2.(根据1a，完成1b。)T:Nowfinish1baccordingto1a.(核对答案。)3.(依据关于乡村和城市对比的幻灯片，学习比较级的表述，让学生进一步巩固1a涉及到的形容词比较级的用法表述。)Theairinthecountrysideisfresherthanthatinthecity.….Step3Post-task任务后1.教师总结和再次强调本节课的重难点。2.Homework:朗读1a，下节课进行pairwork阅读Page119-120有关形容词比较级和最高级的知识，并完成2b的表格。预习2a.板书设计:Plantsandanimalsareimportanttous.SectionASkyfresh-fresherTheairisfresher.clear,blue-bluerTheskyisbluer.Beautyclear-clearerTheriverisclearer.Naturegreen-greenerThetreesaregreener.quiet-quieterIt’squieter
