英语人教版九年级全册Unit13 3a-3c.ppt

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1、Unit13Wearetryingtosavetheearth.(SectionA3a-3b)Howdoyoufeelaboutthesong?healtheearthWhatarethey?Wheredotheylive?shark/ʃɑ:k/n.鲨鱼fins/fInz/n.鳍Theyhavelivedintheoceanforover400millionyears,evenolderthanthedinosaurs.(恐龙）Whathappenedtothisshark?学习目标1.掌握下列单词及短语sharkfin

2、cruelharmfulbeharmfultochainatthetopofthefoodchainecosystemindustrylawscientific2.通过整体感知课文，掌握相关环保的词汇及句型，并呼吁人们保护鲨鱼，关注生态平衡迅速说出找出下列短语的意思hearofsharkfinsoupcutoffnotonly...butalso...beharmfultoatthetopofinfactthenumberof听说鱼鳍汤砍掉，砍断不仅··而且··对··有害在··顶部实际上···的数量bringdanger

3、toaroundtheworldbegoodforsofarnolongeroceanecosystemthefoodchain给···带来危害世界各地对···有好处到目前为止不在海洋生态系统食物链课文展现fastreadingandscanningreadingtask(阅读任务）1.各小组认真读完课文。2.通过快速阅读及细读整体感知课文后，回答下列问题。（答对的同学加组分，判断正误，错的要说出理由，加1-2分，简答题加2-3分）FastReadingSavethesharks!What’sthemainideaoft

4、hearticle?A.SomekindsoffishintheoceanB.Thesharksareendangeredintheworld.C.ThesharkfinsoupisfamousandexpensiveA:ingreatdangerB:dangerousSavethesharks!ReadandMatchPara1.endangeredsharksPara2.sharkfinsoupPara3.Helpsavethesharks!Skimming略读ReadingTipFindoutthekeywords

5、(关键词）ineachparagraph.Youcangetsomeinformation.ReadandtellTorF.Para1.Scanning寻读FT()①Sharkfinsoupisfamousandexpensivearoundtheworld.()②You’rekillingawholesharkwhenyouenjoyabowlofsharkfinsoup.insouthernChina.=sharkfinsoupSharkfinsoupisand.ItisespeciallyinChina.Youar

6、ekillingaeachtimeyouenjoy=where?result?retellbutfamousexpensivepopularSouthernwholesharkabowlofsharkfinsouppara1Para2.Scanning寻读3.Sharkscanneverbeendangeredbecausetheyarethestrongestinthefoodchain.Trueorfalse:1.Whyistheprocess(过程)cruel?2.Whyisitharmfultotheenviro

7、nment?Withoutafin,asharkcannolongerswimandslowlydiesSharksareatthetopofthefoodchainintheoceanecosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.sharksplanktons浮游生物因为我们生存所需的氧气的70%是海洋中的浮游生物提供的，鲨鱼一旦灭绝，没有了天敌的控制的其它海洋生物就会大量吞噬海洋浮游生物，造成地球的缺氧。海洋是地球上最重要的生态系

8、统，起到调节气候和为其它生物提供食物的作用，因此拯救鲨鱼其实就是在拯救人类自己。Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.atthetopofthefoodchainintheocean’secosysteminfact2.Thenumberso