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1、Unit13 We’retryingtosavetheearth!Period3SectionA(3a～4c)P99-100TeachingandlearningGoals:一、功能：能谈论环境污染和环境保护问题(Beabletotalkaboutpollutionandenvironmentprotection)二、词汇和常用表达：1.能正确使用下列词汇sharkfincruelharmfulatthetopofchainindustrylawscientificaffordreusabletransportatio
2、n2.能正确使用下列常用表达beharmfulto,attopof,thefoodchain,takepartin,can’taffordtodo,turnoff,payfor,takeaction三、文化知识：了解人类捕捉鲨鱼获取鱼翅，破坏环境污染问题并呼吁人们保护鲨鱼（Understandinghumancapturesharksforshark'sfin,thedestructionoftheenvironmentpollutionandcalledonpeopletoprotectsharks）Teaching
3、andlearningsteps:StepI.Pre-readingActivities一、PreviewReadfromP99toP100andputtheChineseintoEnglishorally,thenwritethemdownwithoutlookingatyourbook.Ⅰ.短语互译1.beharmfulto 2.atthetopof 3.参加take in4.关掉turn 5.付费;付出代价 for6.采取措施take Ⅱ.完成句子1.但是你意识到
4、每次你享受一碗鱼翅汤的时候,你正在杀死一整只鲨鱼吗?Butdoyourealizethat awholeshark youenjoyabowlofsharkfinsoup?2.如果它们的数目降至过低,会给所有海洋生物带来危险。 theirnumbers toolow,it bringdangertoalloceanlife.3.许多人相信鲨鱼永不会被灭绝,因为它们是食物链中最强壮的。Manybelievethatsharks never because
5、theyare intheirfoodchain.4.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,教育公众有关“猎翅”的行为。Environmentalprotectiongroupsaroundtheworld, WildAidandtheWWF, thepublicabout“finning”.5.到目前为止,没有科学研究显示鱼翅对健康有好处,那么为什么还要吃它们呢?Sofar,noscientificstudies thatsharkfi
6、nsaregoodforhealth,sowhyeatthem?（设计说明：通过检查预习，让学生快速说出短语和句型，了解学生对课本知识的掌握情况，为下一步的教学做铺垫。)二、LeadinT:Doyoulikeanimals?Doyouknowtheshark?S:Ilikeanimals.Thesharkisverybigand…T：Doyouknowwhythepeoplekilledthesharks?S:No,Idon’tknow.T:Doyouhearaboutthesharkfinsoup?Nowmanysh
7、arksarekilledforthiskindofsoup.Sharksarefewerandfewer.Whatshouldwedo?Let’scometo3a.StepII.While-readingActivities1.Readforthegeneralideaof3a.Thegeneralideaofthearticleisabout____.A.airpollutionB.thesharksC.waterpollution2.Readthepassageaboutsharksandcompletethef
8、actsheetbelow.WheresharkfinsoupispopularInSouthernChina.NumberofsharkscaughtandtradedeveryyearAround70million.Howmuchthenumbersofsomekindsofsharkshavefalleninthelast2
