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Unit12TheEarthPeriod1Teachingaims:1.能听、说、读、写单词：Earth,part,forest,land,ocean,rubbish;能听、说、认读短语：somany,plasticbag。2.能用句型“Wesh

ould…(do),Weshouldstop…(doing)”提出保护环境的建议。3.树立爱护地球，保护环境的意识。Teachingimportantpoints:1.Words:Earth,part,forest,land,oc

ean,rubbish,somany,plasticbag2.Sentence:Weshouldstopcuttingdownsomanytrees.Teachingdifficultpoints:We

shouldstop…(doing)句型中动词-ing的用法。Teachingprocedure:Step1WarmingupGreetingandfreetalkaboutcolours.Step2LeadinShow“地球仪”，引出“TheEarth”，并板书。Step

3PresentationandPractice1.Learnthenewwords:part,forest,land,ocean.T:HowmanycoloursarethereontheEarth

?Whatarethey?T:TherearemanydifferentpartsontheEarth.T:(Pointtogreen)greenpart(板书part)T:Whatarethegreenparts?S:Theyareforests.T:Thegreenpartsar

eforests.(同上学习land,ocean)Writethewordsintheblacks.(完成Step1)Readthesentencestogether.2.ReadandanswerT:ThechildreninMsGuo’sclassaretalkingabouttheEarth

.Let’slisten.T:What’swrongwiththeEarthnow?Readthisdialogueagainandtrytofindtheanswer.(完成Step2)S1:TheEarthwascleanandbeau

tifulinthepast,butnowsomepartsaredirty.3.ReadanddiscussingroupsT:WhatshouldwedotohelptheEarth?Nowreadthedialogueagainandfindtheanswer

s,thendiscussingroups.（完成Step3）4.Learn“rubbish,somany,plasticbag”(课件出示Weshouldstop…并板书rubbish)5.T:Weknow“should+动词原形”.Readthesentences.Wh

atcanyoufind?Chooseandfill.Step4ConsolidationandSummary1.Actitout2.SummaryStep5Homework1.ListentoandreadStudent’sBookpa

ge80.2.Finish“Thinkandwrite”onpage85.3.Writethenewwordsthreetimes.Blackboarddesign:Unit12TheEarthEar

thforestlandoceanpartrubbishWeshouldstopdoing…