《Unit2SavingtheEarth》教案I.Themainactivitiesare1aand2.本课重点活动是1a和2。Ⅱ.Teachingaimsanddemands教学目标1.Learnanewwordandsomephrases:asaresult,behavior,inthebeginning,daybyday,dieout2.Learnsomeusefulsentences:(1)Asaresult,airpollutionhasbecomeaseriousproblem.(2)Humanshavecometorealizetheimportanceofprotectinganimals.3.Learntheindefinitepronounandadverb:(1)Noneofuslikespollution.(2)Don’tspitanywhereinpublic.(3)Everyoneshouldcareforwildanimalsandplantmoretrees.4.Learntheimportanceofprotectingtheenvironment.Ⅲ.Teachingaids教学图片/小黑板/录音机IV.TeachingMethod任务型教学Step1Review复习污染的类型及其危害，收集一些有关污染的图片，让学生说出它们分别属于哪种污染，有何危害并提出解决建议。Step2Pre-task1.learnnewwords.Asaresult,rude,behaviour,inthebeginning,daybyday,dieout,importance.2.展示1a的图片，导入新课.Step3While-taskTaskOne:1a1.Listentothetapeandread.2.Answerthequestionsin1baccordingto1a,thenchecktheanswers.3.Findoutthekeypoints.不定代词：some/any/no/every+body/one/thing/where.用法:A形容词修饰不定代词和不定副词要放在不定代词/不定副词之后B不定代词作主语谓语动词要用单数C在反义疑问句中，表示人的不定代词作主语时，其反义疑问句的主语通常用they；当句子中的主语是指物的不定代词时，其反义疑问句的主语通常是代词itTaskTwo:2WorkaloneFinish2thenchecktheanswers.TaskThree:3WorkaloneFinish3thenchecktheanswers.Step4:homework:1.Copynewwordstentimes.2.Makesomeclassrulesorschoolrulesaboutprotectingenvironment.板书设计：Unit2Topic2SectionA1.somethinguseful2.Noneofuslikespollution.none的用法：1.none与of连用。2.none用来回答howmany/howmuch的问句。注意与noone的区别，是用来回答的问句。3.everyone不和of连用，everyone可以和of连用。教学反思：
