Unit13 We’re trying to save the earth第2课时SectionA3a-3b课件（人教新目标版）

SectionA3a-3bUnit13We’retryingtosavetheearth!九年级下册RJ初中英语 1.Newwords:shark,fin,cruel,harmful,chain,ecosystem,industry,law,scientific2.Expressions:beharmfulto,atthetopof,thefoodchainLearninggoals SouthChinatiger华南虎CrestedIbis朱鹮Let’slookatpicturesofendangeredanimalsinourcountry.adj.濒危的；濒临灭绝的Warmingup Let’slookatpicturesofendangeredanimalsinourcountry.BrownEared-pheasant褐马鸡Panda大熊猫 GoldenMonkey金丝猴Chiru藏羚羊Let’slookatpicturesofendangeredanimalsinourcountry. Weshouldtryourbesttoprotectanimals.Howcanweprotectthem?Discussinyourgroup. 点击，播放视频 Whatdoyouknowaboutsharks?Doyouthinksharksareendangered?Why?Whatdoyouthinkmighthavecausedafallinthenumberofsharks? sharkn.鲨鱼finn.（鱼）鳍crueladj.残酷的；残忍的harmfuladj.有害的chainn.链子；链条ecosystemn.生态系统 beharmfulto对……有害atthetopof在……顶部或顶端thefoodchain食物链industryn.工业；行业lawn.法律；法规scientificadj.科学上的；科学的 点击，播放视频 Readthepassagein3aquicklyandanswerthequestions.Sharksareatthetopofthefoodchainintheocean’secosystem.Yes,Ithinksharksareendangered.Becausewhenpeoplecatchsharks,theycutofftheirfinsandthrowthesharksbackintotheocean.Withoutafin,asharkcannolongerswimandslowlydies.Doyouthinksharksareendangered?Why?Whatdoyouknowaboutsharks? Peoplecatchsharksandcutofftheirfinsandthrowthembackintotheocean.Withoutafin,asharkdies.Whatdoyouthinkmighthavecausedafallinthenumberofsharks? WheresharkfinsoupispopularNumberofsharkscaughtandtradedeveryyearHowgovernmentscanhelpTwoenvironmentalgroupsagainst“finning”3aReadthepassageaboutsharksandcompletethefactsheetbelow.InsouthernChina.Around70million.Todeveloplawstostopthesaleofsharkfins.WildAidandtheWWF. 1.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.(教材P993a)“thenumbersof...”是“thenumberof…”的复数形式。thenumbersof...……的数量Thenumbersofdifferentkindsofflowersaregrowingquickly.Languagepoints 【易混辨析】thenumberof...与anumberof...例词词义用法thenumberof...……的数量“thenumberof+可数名词复数”作主语时，谓语动词用单数形式。anumberof...一些；若干“anumberof+可数名词复数”作主语时，谓语动词用复数形式。Anumberofmeasureshavebeentakentoprotectwildanimalsbecausethenumberofthemhasbecomesmallerandsmaller. “fallby”意为“下降了”，by表示变化的幅度。fallto意为“下降到”。1.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.(教材P993a)Lastyear,thepriceofthiskindofcarwas100,000yuan.Thisyearitfallsto80,000yuan.Itfallsby20percent.fallby下降了 WWF(世界自然基金会)英文全称为WorldWideFundForNature,是在全球享有盛誉的、最大的独立性非政府环境保护组织之一。这一国际组织成立于1961年，致力于保护世界生物多样性、确保可再生自然资源的可持续利用，以及推动降低污染和减少浪费性消费的行动。迄今，该组织在六大洲的153个国家发起或完成了约12,000个环保项目。WWF WildAid(美国野生救援协会)是一个非营利性的动物及栖息地环境保护机构，1999年在美国注册，总部设在美国旧金山，负责监控和协调世界各国各个项目开展的情况。它在纽约、曼谷、伦敦、华盛顿、北京、海参崴等地设有办事处。这一机构的宗旨是世界范围的野生动物保护及救助，其重要工作之一是野生动物保护行动(ACAP)。WildAid 1.Manypeopledonotrealizetheyarekillingawholeshark______theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,________iftheirnumbersdrop,theocean’secosystemwillbeindanger.3.Manythinkthatsharksaretoostrongtobeendangered,_______theyarewrong.3bReadthepassageagainandfillintheblankswiththewordsinthebox.whensobutsoalthoughifbutwhen 4.________therearenoscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday_______wedonotdosomethingtostopthesaleofsharkfins.Althoughifsoalthoughifbutwhen hearofcutoffnolongernotonly…butalsobeharmfultobringdangertothenumberofsofarFindthephrasesandmatch.不再切掉；切断到目前为止对……有害给……带来危险……的数量听说不但……而且…… Whatdoestheword“they”refertoaccordingtothepassage?1.Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharksbackintotheocean.2.Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.3.Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.立法()()()peoplesharksenvironmentprotectiongroups Listenandread.SavetheSharks!Manyhaveheardofsharkfinsoup.ThisfamousandexpensivedishisespeciallypopularinsouthernChina.Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?听说，相当于hearabout Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharksbackintotheocean.Thisisnotonlycruel,butalsoharmfultotheenvironment.Withoutafin,asharkcannolongerswimandslowlydies.Sharksareatthetopofthefoodchainintheocean’secosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyarethe切掉；切断adj.残酷的；残忍的adj.有害的beharmfulto对……有害不再在……顶部或顶端n.生态系统 strongestintheirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.n.工业；行业在过去的20到30年里，是现在完成时的标志性时间状语之一 Environmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,sowhyeatthem?Helpsavethesharks!n.法律；法规adj.科学上的；科学的到目前为止；迄今为止是现在完成时的标志性时间状语之一 Fillintheblanksaccordingtothepassage.Somepeopleliketoeatsharkfinsoup,especiallyinChina.Butgettingthesharkfinisvery.Whenpeoplecatchsharks,theytheirfinsandthrowthesharksbackintotheocean.Thesharksslowlydiebecausetheycan’twithoutfins.Anditisalso________totheenvironment.Sharksareatthe____ofthefoodchain.Ifthenumberofsharksdropstoolow,itwillbreakthebalanceofthenature.Pleasesaynotoeatingsharkfinsoup,andtakeactiontosavethesharks!cruelcutoffswimharmfultop SavetheSharks!提出问题：吃一碗鱼翅羹就是杀害一整头鲨鱼(Para.1)sharkfinsoupispopularinsouthernChinaabowlofsharkfinsoup=killingawholeshark cutofftheirfinsandthrowthesharksbackintotheoceancruelandharmfultotheenvironmentaround70millionsharksarecaughtandtradedeveryyearbringdangertoalloceanlifethenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years分析问题：为什么要阻止“猎翅”(Para.2) 解决问题：环保组织号召反对“猎翅”(Para.3)environmentalprotectiongroupsnoscientificstudieshaveshownthatsharkfinsaregoodforhealthteachingthepublicabout“finning”askedgovernmentstodeveloplawstostopthesaleofsharkfins 一、用正确的介词填空Manyhaveheard(1)____sharkfinsoup.Thisfamousandexpensivedishisespeciallypopular(2)_____southernChina.Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowl(3)_____sharkfinsoup?Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharksback(4)_____theocean.Thisisnotonlycruel,butalsoharmful(5)____theenvironment.Withoutafin,asharkcannolongerswimandslowlydies.ofinofintotoExercises Sharksare(6)____thetopofthefoodchain(7)____theocean’secosystem.Iftheirnumbersdroptoolow,itwillbringdanger(8)_____alloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongest(9)_____theirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbers(10)_____somekindsofsharkshavefallen(11)_____over90percentinthelast20to30years.atintoinofby Environmentalprotectiongroups(12)__________theworld,suchasWildAidandtheWWF,areteachingthepublic(13)_____“finning”.Theyhaveevenaskedgovernmentstodeveloplawstostopthesale(14)_____sharkfins.Sofar,noscientificstudieshaveshownthatsharkfinsaregood(15)_____health,sowhyeatthem?Helpsavethesharks!around/inaboutoffor 二、根据汉语提示完成句子1.但是每一次当你喝一碗鱼翅羹的时候，你意识到你杀了一整只鲨鱼吗?Butdoyou________thatyou’rekillingawholeshark__________youenjoy____________sharkfinsoup?2.这种方式不仅残忍，而且对环境有害。Thisis________________,___________________theenvironment.3.如果它们的数量下降得太多，将会给所有的海洋生物带来危险。Iftheirnumbers________too________,itwill__________________alloceanlife.realizeeachtimeabowlofnotonlycruelbutalsoharmfultodroplowbringdangerto 4.很多人以为鲨鱼永远都不会濒临灭绝，因为他们是食物链的最强者。Many________thatsharkscan____________________becausetheyare_____________intheir____________.5.在过去的20年到30年，某些品种的鲨鱼数量下降了超过90%。______________somekindsofsharks______________over90__________inthelast20to30years.neverbeendangeredhavefallenbybelievethestrongestfoodchainThenumbersofpercent 6.到目前为止，没有任何科学研究表明，鱼翅对健康有益，那么为什么还要吃它们呢?Sofar,no_________studies___________thatsharkfins_____________health,sowhy______them?aregoodforhaveshownscientificeat 1.—WhynotaskBobtojoinusinthetriptothezootomorrow?—Everyoneinourgrouplovesanimals,buthealwaysseems______.anxiousB.personalC.cruelD.careless2.Anumberofvisitors_______visitingtheWestLakeandthenumberofthevisitors_____increasing.are;isB.is;areC.are;are三、单项选择CA 3.Don’tplaygamesonthecomputerallday.It’s_______toyoureyes.A.harmfulB.thankfulC.usefulD.helpfulA4.(2021·苏州中考)ThedocumentaryAPlasticOceanissoimpressivethatI________itseveraltimessofar.watchedB.watchC.havewatchedD.willwatchC UsefulexpressionsKeywordsReadingapassageaboutsharksbeharmfulto,atthetopof,thefoodchainshark,fin,cruel,harmful,chain,ecosystem,industry,law,scientificLet’shelpsavethesharks!Summary 纪录片网址如下：https://www.bilibili.com/video/BV1qx41127i9?from=search&seid=8794683932756864729观看纪录片Sharkwater,请你以鲨鱼的角度给人类写一封80词左右的信，呼吁人类停止捕杀鲨鱼。内容包括：1）介绍鲨鱼以及鲨鱼的生存现状；2）讲述人类不应该捕杀鲨鱼的理由（至少包括两个）；3）呼吁人类与鲨鱼和平共处。Homework