We'retryingtosavetheearth!第二课时SectionA(3a-3b)【学习目标】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…【学习重点】通过学习3a部分的文章,了解珍稀动物的生存现状,树立保护濒危动植物的意识。【学习难点】给出一些阅读技能,教会学生怎么使用这些阅读技能。Thisperiodwewilllearnasmallpassageaboutsavingsharks,firstaskafewstudentstoanswermyquestionsaboutthepassage.Task1LearnthepassagebythemselvesonP99:studentsreadthepassagesilentlyandrapidly,knowthegeneralideaandmarkthenewwords,phrasesandsentences.【学法指导】◆percent做名词,“百分之……”单复数相同。thepercentof+名词(un/cn),当其做主语时,谓语动词要和of后的名词保持一致。◆south—southernnorth—northernwest—westerneast—eastern◆hearof听说hearfrom收到某人来信bepopularin在……范围内受欢迎bepopularwith…受某人欢迎情景导入生成问题Theteachermaywanttoasksstodosomeadditionalresearchtofindoutmoreaboutsharksbeforethislesson.Thiswillenablethesstohaveabetterunderstandingandgreaterknowledgeaboutsharks.Andthenaskstudents:Doyoulikeanimals?Howdoyouhelpprotecttheendangeredanimals?自学互研生成能力Task1Let'sreadthenewwordsandphrases.1.Icanread.(我会读)预习下列单词和短语,争取自己能正确拼读。拼读成功后再在课文中把单词和短语标记出来。shark,fin,method,cruel,cutoff,harmful,chain,ecosystem,low,industry,law,environment,environmental,scientific2.Icanwrite.(我会写)翻译下列词语:(1)鱼翅汤shark__fin__soup(2)割掉鱼鳍cut__off__the__fins(3)对环境有害be__harmful__to__the__environment(4)处于食物链的顶端at__the__top__of__the__food__chain(5)在最近的20到30年间in__the__last__20__to__30__years(6)下降了90%多fall__by__over__90__percent(7)健全法律develop__laws(8)鱼鳍买卖the__sale__of__shark__fins__3.Icansummarize.(我会总结)notonly…butalso…用于连接两个表示并列关系的成分,着重强调后者,其意为“不仅……而且……”,其中的also有时可以省略。若连接两个成分作主语,其谓语通常与靠近的主语保持一致。如:Notonlyyoubutalsohehastoleave.不只是你,他也得离开。notonly放在句首,后接句子时要用倒装结构。如:Notonlyhadthepoormanbeenfined,butalsohehadbeensenttoprison.这个可怜的人不仅被罚款,而且还被送进了监狱。Task2Let'sread3aandgetthemainideaofthepassage.1.Fastreading.(快速阅读)(1)请写下3a表格中的答案WheresharkfinsoupispopularInsouthernChinaNumberofsharkscaughtandtradedeveryyearAround70millionsharksHowmuchthenumberofsomekindsofsharkshavefalleninthelast20to30yearsOver90percentTwoenvironmentalgroupsagainst“finning”TheyareWildAidandtheWWF(2)请尝试翻译一下课文中的句子。①Environmentprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.世界各地的环境保护组织,如野生救援协会和世界自然基金会,都在教育公众有关“猎翅”的行为。②Thismethodisnotonlycruel,butalsoharmfultotheenvironment.这不仅仅很残酷而且对环境有害。2.Intensivereading.(精读)细读文章,完成教材3b的任务,要求学生再次阅读课文用3b的方框中所给单词完成句子。(1)when;(2)so;(3)but;(4)Although;(5)ifTask21.Fastreading.(1)Studentsreadthepassagesilentlyandrapidly,familiartothegeneralidea,finishthetasksin3a.(2)Studentstrytranslatingthemoredifficultsentencesinthepassage.2.Intensivereading.Studentsreadthepassagecarefullyandfillintheblankswiththewo...