九年级英语上册Unit2《Topic2Alltheseproblemsareveryserious》SectionA教学设计仁爱版Themainactivitiesare1aand2.本课重点活动是1a和2。2.(教师创设一个空气污染的情境，引入本课话题。例如：教师一边拍身上的灰尘，一边咳嗽着走进教室，然后描述。)T:Itistoodirtyandthereistoomuchheavysmokeoutside.Ican’tstandit.Ss:Isitairpollution?T:Yes,itis.Step2Presentation第二步呈现(时间:10分钟)展示1a的图片，导入新课，呈现本课生词和词组。讲解不定代词和不定副词的用法。教育学生必须保护环境。1.(教师展示1a的图片，导入新课。)T:Doyouliketheenvironmenthere?Ss:No,wedon’t.T:Why?Ss:Becausethereistoomuchsmoke.T:Yes.Weshouldstopburningcoal.ItissaidthatChinahasbecometheworld’slargestproduceranduserofcoal.Asaresult,airpollutionhasbecomeaseriousproblem.(板书并要求学生掌握。)asaresultT:Nowourgovernmenthasrealizedtheimportanceofprotectingtheenvironment.(板书并要求学生理解。)importanceT:Weshoulddosomethingusefultoprotecttheenvironment,too.(板书并解释something是不定代词，其修饰语要放在它后面。)somethinguseful2.(播放1a录音，让学生带着问题去听。)T:Listentothetape,andanswerthequestionsonthesmallblackboard.(出示小黑板。)(1)What’sthearticleabout?(2)Whatshouldwedoasstudents?(核对答案。)3.(男女生分角色朗读。)T:Let’sread1atogether.Boys—Kangkangandgirls—Michael.4.(让学生再读1a，试着找出1a中的不定代词或不定副词，以及一些疑难点。)T:Read1aagain,andtrytofindtheindefinitepronounsoradverbs.Step3Consolidation第三步巩固(时间:8分钟)阅读1a，完成1b，开展分组活动加深对文章的理解，增强学生的环保意识。1.(让学生齐读对话，巩固1a并完成1b。)T:Now,let’sreadthisdialogtogetheragain,andthentrytoanswerthequestionsin1basquicklyasyoucan.(核对答案。)2.(让学生分组活动,仿照1a编写对话，以达到学以致用的目的。)T:OK,pleaseworkinpairs.Trytomakeanewdialogwithyourpartneraccordingtothedialogin1a.ThenI’llasksomepairstoactoutyourowndialoginthefrontoftheclassroom.Example:S1:Hi,S2,whatareyoudoingnow?S2:I’mreadingabook.S1:What’sitabout?S2:It’sabouttheenvironmentintheworld.Itsaysthatourenvironmentisgettingworseandworse.Andthepollutionhasbeenthemostseriousproblemintheworld.S1:Yes.Butit’sluckythatlotsofgovernmentshavedonesomethingusefulfortheprotectionofenvironment.S2:It’sknownthatnobodylikespollution.Butwhatshouldwedoasstudents?S1:Ithink,first,everyoneshouldtrytoprotecttheenvironmentaroundusandweshouldn’tspitorthrowtherubbishhereandthere.Weshouldprotectthewildanimalsandplants.S2:That’sright,weshoulddoasmuchaspossibletoprotectourearth.Step4Practice第四步练习(时间:15分钟)教师利用图片作引导，呈现部分生词和词组。让学生独立完成2，然后听录音，完成3。并通过练习，分析不定代词和不定副词在句中的作用，总结它们的用法。1.(教师展示多幅有关学生不文明现象的图片。)T:Environmentisveryimportanttous.HowabouttheenvironmentofKangkang’sschool?Let’slookatthepictures.T:(指着第一幅图中的男生。)Ishepoliteorimpolite?Ss:Impolite.T:Yes.Heisrude.(板书并要求学生理解。)rude2.(让学生观察图片，然后分组讨论图中人物的行为是否正确。)T:Aretheirbehaviorsgoodorbad?(板书并要求学生掌握。)behaviorSs:Bad.T:Iagreewithyou.Whatshouldwedothen?Weshouldmakerulestochangethesituation.Perhapsit’shardforustofollowtherulesinthebeginning.Butyouwillgetusedtothemlateronandourschoolwillbecomebetterandbetterdaybyday.(板书并要求学生掌握。)inthebeginning,daybydayT:Discussingroupsoffour,thengiveareport.(小组选代表汇报。)3.(教师让学生用不定代词或不定副词完成这封信，完成2。)T:HereisaletterfromKangkang.Istheenvironme...
