(人教版)选修七-优秀教案-{Unit3-Under-the-sea-Period-7}.doc

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1、Period7　ListeningTask，TalkingandWritingTeachingaims　　　　　1．Studentswillbeabletofindoutthereasonswhythepopulationofsharksdecreasessharply.2．Studentswillbeabletoexpressopinionswiththepoliteexpressionslike：Idon'tthinkitiswiseto...Itwouldbebetterifwe...Itisagoodideato...Isupposeitisright.

2、..Iwonderif...3．Studentswillbeabletopersuadethelocalgovernmenttoprotectwildlifeinapoliteway.Teachingprocedures　　　　　Step1　BeforelisteningShowstudentsapictureofsharkandtellthemafactthatsharkpopulationsaredecreasingrapidly.Step2　DuringlisteningTask1：TellstudentsJordonDaviesisinterview

3、ingthesharkexpertDonJamesaboutthesharks'situation.Firstreadthestatementsbelow.Thenlistenandnumberthesestatementsintheorderthattheyhearthem.□Sharkpopulationsgrowataveryslowrate.□Alotarekilledbecauseofmodernfishingtechnology.□Governmentsshouldtakeactionsothatthefishingofsharksisslowedd

4、own.□Sharkattacksgetalotofattentioninthenews.□Sharkpopulationsaredecreasingataseriousrate.□Somespeciesneedtobeprotected.□Thechanceofbeingbittenbyasharkisactuallyverysmall.□Millionsofsharksarekilledeachyear.Keys：theorder：74815623Task2：Listenagainandanswerthefollowingquestions：1．Should

5、peoplebeafraidofswimminginthesea?2．Howmanypeoplearekilledbysharkseachyear?3．Dosharksorpeopleneedtobeprotected？Why?4．Whyaresomanysharksbeingkilled?5．Whydoestheshark'sbiologyaffectsharkpopulations？Completethesentencesblow.A：Ageforreproducingyoung________________________________________

6、________________________________B：Timefortheyoungtodevelop________________________________________________________________________C：Numberofyoung________________________________________________________________________6．Howlonghavesharkspeciesbeeninexistence?7．WhatdoesDonthinkwillhapp

7、enifwedon'tslowdownthefishingofsharks?Suggestedanswers：1．No.2．Onlyafew.3．Sharksneedtobeprotectedasmillionsarekilledeachyearbyhumanbeings，whereasonlyafewhumanbeingsarekilledeachyearbysharks.4．Sometimestheyarekilledbyaccidentandsometimesonpurpose.Forexample，sharkfinsoupisadelicacyinsom

8、eAsiancountr