Unit4OurWorldTopic1Plantsandanimalsareimportanttous.SectionAThemainactivitiesare1aand2.本课重点活动是1a和2。Ⅰ.Teachingaimsanddemands教学目标1.Learnsomewordsofanimalsandothernewwordsandexpressions:thinkabout,sky,clear,nature,grandma,thin,cow,sheep,goose,rabbit2.Learnsomewaysofexpressingcomparativesituations:(1)Theairisfresher…(2)Chickensaremuch/alittlesmallerthancows.(3)Micearethesmallestofthem.(4)Michaelthinksdogsaremuchmorecleverthancats.3.Learnthecomparativeandsuperlativedegreesofadjectives.strongstrongerstrongestⅡ.Teachingaids教具录音机/图片/多媒体/两个苹果/小黑板Ⅲ.Five-fingerTeachingPlan五指教学方案Step1Review第一步复习(时间:10分钟)1.(教师用实物呈现两个苹果,一个大,新鲜,另一个小,水分不足,引出比较级。)T:Doyoulikeapples?Ss:Yes.T:Whichappledoyouprefer,thisoneorthatone?Ss:Ipreferthisone.T:Why?It’sbiggerandfresherthanthatone.(教师可以引导学生来回答此问题，从而引出比较级。)(板书)bigger(thecomparativedegreeofbig)fresher(thecomparativedegreeoffresh)(向学生讲述以上形容词的比较级，并给学生适当讲解比较级的变化方式。)(拿出两张卡片，其中一幅有蓝天，白云，绿水和许多绿树，画面清晰;而另一幅也有同样的事物，但天是灰蒙蒙的，树快要死去，被污染的水面上漂浮着死鱼。)T:Lookatthesetwopictures.Whichonedoyoulike,S1?S1:Thebeautifulone.T:Why?S1:…T:Ialsolikethisonebecauseinthispicturetheairisfresher,theskyisbluerandtherearealsogreenertreesandclearerrivers.(板书)skybluergreenerclearer2.(教师和学生通过讨论农村和城市生活来练习比较级，运用上面板书的词汇。)T:Lookatthetwopictures,wecanseethatmaybethisoneisinthecountrysidebutthatoneisinthecity.Doyoulikethecountrysideorthecity?S2:Ilikethecountryside.T:Why?S2:Becauseinthecountrysidetheairisfresher,theskyisbluerandtherearealsogreenertrees.T:Isthereanythingelse?S:Therearemanyclearerrivers.T:Welldone.Wecanenjoynaturethere.(板书)nature(两分钟后，挑几组学生在全班学生面前表演此对话。)Step2Presentation第二步呈现(时间:5分钟)1.(听1a录音，并理解1a回答问题。)T:Moststudentslikethecountrysidebetter,doyouknowwhichplaceWangWeilikesbetter?Ss:No.T:Ok,Let’slistentothetapeandanswerthefollowingquestions.(出示小黑板。)WhatisWangWeithinkingabout?Doeshelikethecountryside?WhyorWhynot?(核对答案。)2.(阅读1a,完成1b。)T:Now,pleaseread1a,andthenfinish1b.Step3Consolidation第三步巩固(时间:10分钟)1.(让学生跟读1a，并画出重点词句。)(板书)thinkabout,life,like,countryside,fresh,blue,green,clear,quiet,enjoy,summer,funDoyoulikethecountryside?Theairisfresher…Mygrandmalivesinthecountryside.Thatmustbefun.2.Letthestudentsread1aagainandcheckthepronunciationandintonation.3.Role-playthedialog.(学生根据黑板上的关键词，不看课本，表演对话。)(两分钟后，找几组学生到前面表演。)T:Nowpleasemakeadialoginpairsaccordingtothewordsontheblackboard.AftertwominutesIwillasksomegroupstoactitoutinfrontoftheclassroom.Step4Practice第四步练习(时间:10分钟)1.(做游戏学习形容词的比较级和最高级的变化规则。)(首先让学生看语法附录中有关比较级和最高级的内容。)T:Now,Let’sreviewtheadjectiveswehavelearnedbefore.Youcanlookatthecontentaboutthecomparativeandsuperlativedegreesofadjectivesinthegrammerappendix..Thenwewillplayagame.游戏规则：(1)这是组与组之间的竞赛(2)每一组的一个学生在回答问题后，提出一个新的形容词。(3)另外一组的学生回答，回答对得2分，提出正确的词得1分，说错不得分。(4)形容词不能重复，每组循环几次。(5)得分最高的组获胜。Foxexample:G1:Clear.G2:Clearer,clearest,fresh?G3:Fresher,freshest,green?G4:Greener,greenest,small...
