英语人教版九年级全册Unit 13 Section A (3a).ppt

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1、Shouldwebefriendlytopandas?Shouldwesavethepandas?A.Yes.Theyareendangeredanimals.Ifwedon’tsavethem,theywilldisappearsoon.Unit13We’retryingtosavetheearthSectionA(3a)Foodchainisanimportantpartoftheecosystem.(生态系统)foodchainsharkfinfinsSomepeoplethinkthatsharksare

2、cruel.Sharksareatthetopofthefoodchainintheocean’secosystem.Shouldwebefriendlytosharks?Shouldwesavethesharks?Yes.Sharksareindanger.Ifwedon’tsavethem,theywilldisappearsoon.No.Sharksareverystrong.Theyarecruelanddangerous.Thereisnoneedtosavethem.Read3aquicklyandfin

3、doutthewriter’sopinion.Shouldwesavethesharks?Savethesharks!Proposing(提出)Savethesharks!Analyzing(分析)Solving(解决)ReadPara.1andthink.1.Haveyouheardofsharkfinsoup?2.Whereissharkfinsouppopular?1.Haveyouheardofsharkfinsoup?2.Whereissharkfinsouppopular?Itispopularinsout

4、hernChina.Whydoesthewritersay“Youarekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup”?Let’sreadPara.2andfindtheanswer.1.Whatdopeopledowithsharkswhentheycatchthem?(and)2.Whatdoyouthinkoffinning?(notonly,butalso)3.Howmanysharksarecaughtandtradedeveryyear?4.Ho

5、wmuchhavethenumbersofsomekindsofsharksfalleninthelast20-30years?ReadPara.2andanswerthequestions.1.Whatdopeopledowithsharkswhentheycatchthem?(and)Theycutofftheirfinsandthrowthesharksintotheocean.Why?Sharkfinsareveryexpensive.Butthesharkmeatdoesn’ttastegood,itisve

6、rycheap.Inordertogetformorefins,whichmeansmoremoney,peoplejustcutoffthesharks’finsandthrowthembackintotheocean.Thisiscalled“finning”.2.Whatdoyouthinkoffinning?(notonly,butalso)Whathappentothesharksaftertheirfinsarecutoff?Withoutafin,asharkcannolongerswimandslowl

7、ydies.Thisisnotonlycruel,butalsoharmfultotheenvironment.…cruel,…harmful…==abowlofsharkfinsoupthelifeofawholeshark2.Whatdoyouthinkoffinning?…cruel,…harmful…Whyisitharmfultotheenvironment?Sharksareatthetopofthefoodchainintheocean’secosystem.Iftheirnumbersdroptoolo

8、w,itwillbringdangertoalloceanlife.SavingSharksissavingourselves!3.Howmanysharksarecaughtandtradedeveryyear?4.Howmuchhavethenumbersofsomekindsofsharksfalleninthelast20