九年级Unit 13 Section A (3a)PPT课件

精选,1,?,?,?,?,?,?,?,Travelling,Frank,20,165052821,dogs,10,40,me,Aguessinggame,精选,2,Unit13SectionA(3a),精选,3,精选,4,精选,5,Foodchainisanimportantpartoftheecosystem.,(生态系统),foodchain,精选,6,Doyoulikepandas?,A.Yes.B.No.,精选,7,Shouldwebefriendlytopandas?Shouldwesavethepandas?,A.Yes.Theyareendangeredanimals.Ifwedontsavethem,theywilldisappearsoon.,B.No.Therearestillmanypandasontheearth.Thereisnoneedtosavethem.,精选,8,LetsgotravellingNOW!,精选,9,精选,10,shark,精选,11,fin,精选,12,fins,精选,13,精选,14,Somepeoplethinkthatsharksarecruel.,精选,15,Sharksareatthetopofthefoodchainintheoceansecosystem.,精选,16,Doyoulikesharks?,A.Yes.,B.No.,精选,17,Shouldwebefriendlytosharks?Shouldwesavethesharks?,Yes.Sharksareindanger.Ifwedontsavethem,theywilldisappearsoon.,No.Sharksareverystrong.Theyarecruelanddangerous.Thereisnoneedtosavethem.,精选,18,Read3aquicklyandfindoutthewritersopinion.,Shouldwesavethesharks?,精选,19,Savethesharks!,精选,20,Proposing(提出),Savethesharks!,Analyzing(分析),Solving(解决),精选,21,ReadPara.1andthink.,1.Haveyouheardofsharkfinsoup?,2.Whereissharkfinsouppopular?,精选,22,1.Haveyouheardofsharkfinsoup?,Whatissharkfinsoup?,精选,23,鱼翅，就是鲨鱼鳍中的细丝状软骨，形似粉丝,取材于鲨鱼的背鳍、胸鳍、尾鳍。鱼翅价格昂贵，在高档酒店，每份鱼翅羹(sharkfinsoup)约800-1500元人民币。鱼翅本身并没有什么味道，烹制时要用许多调味品给鱼翅赋味。,精选,24,2.Whereissharkfinsouppopular?,ItispopularinsouthernChina.,精选,25,Whydoesthewritersay“Youarekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup”?,LetsreadPara.2andfindtheanswer.,精选,26,1.Whatdopeopledowithsharkswhentheycatchthem?(and)2.Whatdoyouthinkoffinning?(notonly,butalso)3.Howmanysharksarecaughtandtradedeveryyear?4.Howmuchhavethenumbersofsomekindsofsharksfalleninthelast20-30years?,ReadPara.2andanswerthequestions.,精选,27,1.Whatdopeopledowithsharkswhentheycatchthem?(and),Theycutofftheirfinsandthrowthesharksintotheocean.,Why?,精选,28,Sharkfinsareveryexpensive.Butthesharkmeatdoesnttastegood,itisverycheap.Inordertosavethespaceformorefins,whichmeansmoremoney,peoplejustcutoffthesharksfinsandthrowthembackintotheocean.Thisiscalled“finning”.,精选,29,2.Whatdoyouthinkoffinning?(notonly,butalso),Whathappentothesharksaftertheirfinsarecutoff?,Withoutafin,asharkcannolongerswimandslowlydies.,Thisisnotonlycruel,butalsoharmfultotheenvironment.,cruel,harmful,精选,30,精选,31,=,=,abowlofsharkfinsoup,thelifeofawholeshark,精选,32,2.Whatdoyouthinkoffinning?,cruel,harmful,Whyisitharmfultotheenvironment?,Sharksareatthetopofthefoodchainintheoceansecosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.,精选,33,SavingSharksissavingourselves!,精选,34,3.Howmanysharksarecaughtandtradedeveryyear?4.Howmuchhavethenumbersofsomekindsofsharksfalleninthelast20-30years?,Around70millionsharksarecaughtandtradedeveryyear.,Thenumbersofsomekindsofsharkshavefallenbyover90%inthelast20-30years.,精选,35,Savethesharks!,Itisnotonly,butalsotothe,Withoutafin,asharkcanswimand,Sharksareatthetopoftheintheoceans.Iftheirnumberstoolow,itwillbringtoalloceanlife.,Aroundmillionsharksareandeveryyear.,Whenpeoplecatch,theytheirfinsandthesharkbackintothe.,Proposing(提出),Analyzing(分析),Solving(解决),精选,36,Whatdotheenvironmentalprotectiongroupsaroundtheworlddotofightagainst“finning”?2.Haveanyscientificstudiesshownthatsharkfinsaregoodforhealth?,ReadPara.3andanswerthequestions.,Theyareteachingthepublicaboutfinning.Theyhaveevenaskedthegovernmentstodeveloplawstostopthesaleofsharkfins.,No.,Whatsthefact?,精选,37,科学研究显示，鱼翅中胶原蛋白含量虽然很高，但缺少一种必需的氨基酸(色氨酸)，不容易被人体吸收。鱼翅的营养价值还不如牛奶，鸡蛋。另外，鱼翅被汞等有毒重金属污染的程度高达70%。鲨鱼处在食物链顶端，因此它们体内积聚的有毒物质常常超出正常允许含量的数十倍。,精选,38,=,Whyeatfins?,精选,39,Savethesharks!,Itisnotonly,butalsotothe,Withoutafin,asharkcanswimand,Sharksareatthetopoftheintheoceans.Iftheirnumberstoolow,itwillbringtoalloceanlife.,Aroundmillionsharksarecaughtand,Whenpeoplecatch,theytheirfinsandthesharkbackintothe.,Proposing(提出),Analyzing(分析),Solving(解决),Environmentalprotectiongroupsarethepublicabout.Theyhaveaskedthetodeveloptostoptheofsharkfins.,精选,40,Shouldwebefriendlytosharks?Shouldwesavethesharks?,Yes.Sharksareindanger.Ifwedontsavethem,theywilldisappearsoon.,No.Sharksareverystrong.Theyarecruelanddangerous.Thereisnoneedtosavethem.,精选,41,SavetheSharks!,精选,42,Whatcanpeopledotosavethesharks?,Asamiddleschoolstudent,whatcanyoudotosavethesharks?,Letshaveadiscussioningroups.,精选,43,精选,44,精选,45,精选,46,精选,47,精选,48,精选,49,精选,50,精选,51,精选,52,Letswriteaproposal(倡议书).,Whatshouldwedo?,精选,53,Proposing(提出),Analyzing(分析),Solving(解决),Aproposal(倡议书).,精选,54,Proposing(提出),Savethetigers!,Analyzing(分析),Solving(解决),Peoplearekillingtigersfortheirskinandbones.Thisisnotonlycruel,butalsodoharmtotheenvironment.Tigersareatthetopofthefoodchainintheforestecosystem.Iftheirnumbersdroptoolow,itwillbringdangertoallforestlife.,Letstellpeopleitisimportanttosavethetigers.Wecanalsoaskthegovernmenttodeveloplawstoprotecttigers.Notrading,nokilling!,精选,55,Proposing(提出),Donteatsharkfinsoup!,Analyzing(分析),Solving(解决),Notrading,nokilling!,Savethewildanimals!,精选,56,Proposing(提出),Savetheelephants!,Analyzing(分析),Solving(解决),killforivory,cutoff,notonly,butalso,playanimportantpartinfoodchain,Ifdrop,