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1、课题Unit13We’retryingtosavetheearth!SectionA2(3a-3c)授课日期2015年12月22日授课类型新课课时1课时教学目标基本词汇：litter,advantage,bottom,fisherman,coal,ugly,cost,wooden,plastic,takeaway,bin,shark,fin,method,cruel.Harmful,chain,ecosystem,industry,law,scientific,afford,reusable,transportat
2、ion,recycle,napkin,upside,gate,bottle,president,inspiration,iron,work,metal,creativity,基本词组：beharmfulto,atthetop(ofsth.),takepartin,turnoff,takeaction,throwaway,putsth.togooduse,pull…down,bringback基本句型：We’retryingtosavetheearth!Theriverusedtobesoclean.Theairis
3、badlypolluted.Noscientificstudieshaveshowedthatsharkfinsaregoodforhealth.Weshouldhelpsavethesharks.重点难点重点（1）能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型。（2）保护环境的措施方法。难点：能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型。教学手段如：多媒体、第二课时备注教学步骤及主要内容I.Revision(1)Role-play2d.(2)Translateth
4、esesentencesintoEnglish.①甚至是河底都满是垃圾。②这个小镇上的每个人都应该参加打扫。③骑自行车有其它的优点。④我买外卖食品从来不拿木筷子和塑料叉子。II.Leadin(1)Teachertellsstudentstheearthisbadlypolluted.Whatshouldwedotosavetheearth?Let’stakeaction.Forexample:①Turnoffthelightswhenyouleavearoom;②Takebusesinsteadofdrivingc
5、ars③Recyclebooksandpaper.(2)Therearesomeanimalsareendangered.Weshoulddosomethingtoprotecttheanimalsandtheenvironment!III.Discussion(1)Haveyoueverseenashark?(2)Whatdoyouknowaboutsharks?IV.Reading(1)Sharksareendangered,readthepassageandjudgethesentences.①Shark’s
6、fin（鱼鳍）soupisfamousandexpensiveallaroundtheworld.②Wehavetokillawholesharktogetabowlofshark’sfinsoup.③Peoplecutoffsharks’finsandthrowthesharksbackintotheocean.④Sharksareinthebottomofthefoodchainintheocean’secosystem.⑤WildAidandtheWWFareenvironmentalprotectiongr
7、oupsinChina.⑥Shark’sfinsaregoodforhealth.(1)Completethefactsheetin3a.Wheresharkfinsoupispopular NumberofsharkscaughtandtradedeveryyearHowmuchthenumbersofsomekindsofsharkshavefalleninthelast20to30yearsTwoenvironmentalgroupswhichareagainst“finning”V.Practice(3b)
8、(1)Readthepassageandfillintheblankswiththewordsinthebox.1.Manypeopledonotrealizetheyarekillingawholeshark______theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,____if
