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1、Unit13We’retryingtosavetheearth!SectionA3a—3c一、【教材分析】教学目标知识目标1.学习并掌握新词汇：shark,fin,method,cruel,cutoff,harmful,chain,ecosystem,low,industry,law,environment,environmental,scientific2.学会并正确使用以下常用表达：hearof,cutoff,throw…into,nolonger,notonly…butalso,beharmfulto,atthetopofthefoodchain,thesaleof…,asksb.t
2、odosth.,sofar,begoodfor,beagainst,indanger3.学会使用以下句型：（1）Doyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofshark’sfinsoup?（2）Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.（3）Thismethodisnotonlycruel,butalsoharmfultotheenvironment.（4）Thenumbersofsomekindsofsh
3、arkshavefallenbyover90percentinthelast20to30years.（5）Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofshark’sfins.能力目标通过文段阅读，提高阅读理解能力。情感目标了解环境污染的坏处，树立环保意识。教学重点会用重点词汇和句型。教学难点语言知识点的运用。教学方法情境教学法；任务型教学法二、【教学流程】6环节师生活动二次备课I.复习热身1、检查生词预习。（1）先通过PPT呈现本课的单词，教师领读，学生跟读，并帮助学生正音。（2）做题巩固。根据句意和首字母提示写出所缺的单
4、词。①Thismethodisnotonlyc_______,butalsoharmfultotheenvironment.②Sharksareatthetopofthefoodchainintheocean’se_______.③Butinfact,around70millionsharksarecaughtandtradedinthisi_______everyyear.④Manyhaveheardofshark’sf_______soup.⑤Iftheirnumbersdroptoolow,itwillbringd_______toalloceanlife.答案：①cruel②eco
5、system③industry④fin⑤danger2、自由交谈。T:Theearthisbadlypolluted.Whatshouldwedotosavetheearth?S1:Takebusesinsteadofdrivingcars.S2:Turnoffthelightswhenyouleavearoom.S3:Recyclebooksandpaper.Ⅱ.感知感知1.PPT展示下列图片。创设情景：Therearesomeanimalsareendangered.Weshoulddosomethingtoprotecttheanimalsandtheenvironment!体验1.
6、分组谈论如何保护濒危动物。Thezoosprovidehomesformanyendangeredanimals.6体验感知2.PPT展示屠杀鲸鱼图片，创设问题情境：Haveyoueverseenashark?Whatdoyouknowaboutsharks?体验2.同学之间阅读文章并谈论找出答案。Ⅲ.强化巩固1.处理教材3a的内容。Wheresharkfinsoupispopular southernChinaNumberofsharkscaughtandtradedeveryyear 70millionHowmuchthenumbersofsomekindsofsharkshavefa
7、lleninthelast20to30years over90percentTwoenvironmentalgroupswhichareagainst“finning” WildAidandtheWWF2.处理教材3b的内容。Readthepassageandfillintheblankswiththewordsinthebox.①Manypeopledonotrealizetheyarekillingawholesha
